/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-acceleration/const_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 04:44:47,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 04:44:47,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 04:44:47,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-06 04:44:47,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 04:44:47,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 04:44:47,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 04:44:47,709 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-06 04:44:47,715 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 04:44:47,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 04:44:47,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 04:44:47,717 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-06 04:44:47,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 04:44:47,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-06 04:44:47,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 04:44:47,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 04:44:47,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 04:44:47,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 04:44:47,718 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-06 04:44:47,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 04:44:47,719 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 04:44:47,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 04:44:47,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 04:44:47,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 04:44:47,719 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-06 04:44:47,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 04:44:47,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 04:44:47,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 04:44:47,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-06 04:44:47,721 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-06 04:44:47,721 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 04:44:47,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 04:44:47,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 04:44:47,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 04:44:47,917 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 04:44:47,918 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 04:44:47,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/const_1-1.c [2022-04-06 04:44:47,972 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35f23d9f8/38ffe71c6ba945aaaca64a2bc8645eb6/FLAG41b456cf1 [2022-04-06 04:44:48,321 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 04:44:48,321 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/const_1-1.c [2022-04-06 04:44:48,325 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35f23d9f8/38ffe71c6ba945aaaca64a2bc8645eb6/FLAG41b456cf1 [2022-04-06 04:44:48,334 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35f23d9f8/38ffe71c6ba945aaaca64a2bc8645eb6 [2022-04-06 04:44:48,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 04:44:48,337 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-06 04:44:48,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 04:44:48,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 04:44:48,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 04:44:48,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 04:44:48" (1/1) ... [2022-04-06 04:44:48,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ec1e2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:44:48, skipping insertion in model container [2022-04-06 04:44:48,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 04:44:48" (1/1) ... [2022-04-06 04:44:48,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 04:44:48,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 04:44:48,518 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-acceleration/const_1-1.c[321,334] [2022-04-06 04:44:48,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 04:44:48,540 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 04:44:48,550 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-acceleration/const_1-1.c[321,334] [2022-04-06 04:44:48,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 04:44:48,562 INFO L208 MainTranslator]: Completed translation [2022-04-06 04:44:48,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:44:48 WrapperNode [2022-04-06 04:44:48,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 04:44:48,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 04:44:48,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 04:44:48,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 04:44:48,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:44:48" (1/1) ... [2022-04-06 04:44:48,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:44:48" (1/1) ... [2022-04-06 04:44:48,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:44:48" (1/1) ... [2022-04-06 04:44:48,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:44:48" (1/1) ... [2022-04-06 04:44:48,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:44:48" (1/1) ... [2022-04-06 04:44:48,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:44:48" (1/1) ... [2022-04-06 04:44:48,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:44:48" (1/1) ... [2022-04-06 04:44:48,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 04:44:48,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 04:44:48,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 04:44:48,589 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 04:44:48,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:44:48" (1/1) ... [2022-04-06 04:44:48,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 04:44:48,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 04:44:48,611 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) [2022-04-06 04:44:48,630 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 [2022-04-06 04:44:48,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 04:44:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 04:44:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 04:44:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-06 04:44:48,655 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 04:44:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 04:44:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 04:44:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 04:44:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 04:44:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-06 04:44:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 04:44:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 04:44:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 04:44:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 04:44:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 04:44:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 04:44:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 04:44:48,703 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 04:44:48,704 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 04:44:48,763 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 04:44:48,767 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 04:44:48,767 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 04:44:48,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 04:44:48 BoogieIcfgContainer [2022-04-06 04:44:48,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 04:44:48,769 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-06 04:44:48,769 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-06 04:44:48,770 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-06 04:44:48,772 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 04:44:48" (1/1) ... [2022-04-06 04:44:48,774 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-06 04:44:48,955 INFO L89 elerationTransformer]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=1}, 1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-04-06 04:44:48,956 INFO L91 elerationTransformer]: Accelerated Formula: (and (= v_main_~x~0_1 0) (= v_main_~y~0_1 (+ v_main_~y~0_2 1)) (< (mod v_main_~y~0_2 4294967296) 1024)) InVars {main_~y~0=v_main_~y~0_2} OutVars{main_~x~0=v_main_~x~0_1, main_#t~post4=|v_main_#t~post4_1|, main_~y~0=v_main_~y~0_1} AuxVars[] AssignedVars[main_~x~0, main_#t~post4, main_~y~0] to Formula: (let ((.cse0 (mod v_main_~y~0_2 4294967296))) (or (and (= v_main_~x~0_1 0) (< v_main_~y~0_2 v_main_~y~0_1) (<= (div (+ (* (- 1) v_main_~y~0_1) 1024) (- 4294967296)) (+ (div (+ v_main_~y~0_2 (- 4294967295)) 4294967296) 1)) (< .cse0 1024)) (and (<= 1024 .cse0) (= v_main_~y~0_2 v_main_~y~0_1) (= |v_main_#t~post4_3| |v_main_#t~post4_1|) (= v_main_~x~0_5 v_main_~x~0_1)))) InVars {main_#t~post4=|v_main_#t~post4_3|, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_5} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~y~0=v_main_~y~0_1, main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0, main_#t~post4, main_~y~0] [2022-04-06 04:44:48,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 04:44:48 BasicIcfg [2022-04-06 04:44:48,961 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-06 04:44:48,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 04:44:48,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 04:44:48,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 04:44:48,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 04:44:48" (1/4) ... [2022-04-06 04:44:48,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1946956e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 04:44:48, skipping insertion in model container [2022-04-06 04:44:48,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:44:48" (2/4) ... [2022-04-06 04:44:48,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1946956e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 04:44:48, skipping insertion in model container [2022-04-06 04:44:48,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 04:44:48" (3/4) ... [2022-04-06 04:44:48,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1946956e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 04:44:48, skipping insertion in model container [2022-04-06 04:44:48,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 04:44:48" (4/4) ... [2022-04-06 04:44:48,994 INFO L111 eAbstractionObserver]: Analyzing ICFG const_1-1.cJordan [2022-04-06 04:44:48,997 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-06 04:44:48,998 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 04:44:49,032 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 04:44:49,041 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-06 04:44:49,041 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 04:44:49,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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) [2022-04-06 04:44:49,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-06 04:44:49,060 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 04:44:49,060 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 04:44:49,061 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 04:44:49,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 04:44:49,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1690616289, now seen corresponding path program 1 times [2022-04-06 04:44:49,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 04:44:49,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874841775] [2022-04-06 04:44:49,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 04:44:49,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 04:44:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:44:49,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 04:44:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:44:49,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 04:44:49,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 04:44:49,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874841775] [2022-04-06 04:44:49,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874841775] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 04:44:49,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 04:44:49,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-06 04:44:49,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919790965] [2022-04-06 04:44:49,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 04:44:49,219 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-06 04:44:49,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 04:44:49,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-06 04:44:49,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-06 04:44:49,249 INFO L87 Difference]: Start difference. First operand has 18 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 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) [2022-04-06 04:44:49,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 04:44:49,280 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-04-06 04:44:49,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-06 04:44:49,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 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 [2022-04-06 04:44:49,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 04:44:49,288 INFO L225 Difference]: With dead ends: 18 [2022-04-06 04:44:49,288 INFO L226 Difference]: Without dead ends: 12 [2022-04-06 04:44:49,289 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-06 04:44:49,294 INFO L913 BasicCegarLoop]: 17 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-06 04:44:49,296 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 20 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-06 04:44:49,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-04-06 04:44:49,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-04-06 04:44:49,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2022-04-06 04:44:49,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-04-06 04:44:49,322 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 11 [2022-04-06 04:44:49,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 04:44:49,323 INFO L478 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-04-06 04:44:49,323 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 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) [2022-04-06 04:44:49,323 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-04-06 04:44:49,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-06 04:44:49,324 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 04:44:49,324 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 04:44:49,324 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 04:44:49,324 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 04:44:49,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 04:44:49,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1689692768, now seen corresponding path program 1 times [2022-04-06 04:44:49,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 04:44:49,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486743468] [2022-04-06 04:44:49,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 04:44:49,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 04:44:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:44:49,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 04:44:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:44:49,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 04:44:49,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 04:44:49,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486743468] [2022-04-06 04:44:49,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486743468] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 04:44:49,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 04:44:49,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 04:44:49,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722050675] [2022-04-06 04:44:49,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 04:44:49,409 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 04:44:49,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 04:44:49,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 04:44:49,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 04:44:49,410 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 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) [2022-04-06 04:44:49,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 04:44:49,448 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-06 04:44:49,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 04:44:49,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 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 [2022-04-06 04:44:49,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 04:44:49,449 INFO L225 Difference]: With dead ends: 13 [2022-04-06 04:44:49,449 INFO L226 Difference]: Without dead ends: 13 [2022-04-06 04:44:49,450 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 04:44:49,450 INFO L913 BasicCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-06 04:44:49,451 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 18 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-06 04:44:49,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-04-06 04:44:49,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-04-06 04:44:49,453 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) [2022-04-06 04:44:49,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-04-06 04:44:49,453 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2022-04-06 04:44:49,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 04:44:49,453 INFO L478 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-04-06 04:44:49,453 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 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) [2022-04-06 04:44:49,454 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-06 04:44:49,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-06 04:44:49,454 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 04:44:49,454 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 04:44:49,454 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-06 04:44:49,454 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 04:44:49,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 04:44:49,455 INFO L85 PathProgramCache]: Analyzing trace with hash -814146699, now seen corresponding path program 1 times [2022-04-06 04:44:49,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 04:44:49,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844673200] [2022-04-06 04:44:49,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 04:44:49,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 04:44:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:44:49,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 04:44:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:44:49,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 04:44:49,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 04:44:49,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844673200] [2022-04-06 04:44:49,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844673200] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 04:44:49,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095204155] [2022-04-06 04:44:49,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 04:44:49,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 04:44:49,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 04:44:49,573 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) [2022-04-06 04:44:49,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-06 04:44:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:44:49,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-06 04:44:49,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 04:44:49,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 04:44:49,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 04:44:49,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 04:44:49,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095204155] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 04:44:49,944 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 04:44:49,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-04-06 04:44:49,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365307775] [2022-04-06 04:44:49,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-06 04:44:49,944 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-06 04:44:49,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 04:44:49,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-06 04:44:49,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-04-06 04:44:49,945 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 10 states have internal predecessors, (16), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 04:44:49,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 04:44:49,999 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2022-04-06 04:44:49,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-06 04:44:50,000 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 10 states have internal predecessors, (16), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-04-06 04:44:50,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 04:44:50,000 INFO L225 Difference]: With dead ends: 11 [2022-04-06 04:44:50,000 INFO L226 Difference]: Without dead ends: 0 [2022-04-06 04:44:50,001 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2022-04-06 04:44:50,001 INFO L913 BasicCegarLoop]: 7 mSDtfsCounter, 6 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-06 04:44:50,002 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 29 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-06 04:44:50,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-06 04:44:50,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-06 04:44:50,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-06 04:44:50,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-06 04:44:50,003 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-04-06 04:44:50,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 04:44:50,003 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-06 04:44:50,003 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 10 states have internal predecessors, (16), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 04:44:50,003 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-06 04:44:50,003 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-06 04:44:50,005 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-06 04:44:50,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-06 04:44:50,207 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 04:44:50,209 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-04-06 04:44:50,210 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-06 04:44:50,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 04:44:50 BasicIcfg [2022-04-06 04:44:50,213 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-06 04:44:50,213 INFO L158 Benchmark]: Toolchain (without parser) took 1876.21ms. Allocated memory was 174.1MB in the beginning and 210.8MB in the end (delta: 36.7MB). Free memory was 125.0MB in the beginning and 160.2MB in the end (delta: -35.2MB). Peak memory consumption was 1.7MB. Max. memory is 8.0GB. [2022-04-06 04:44:50,214 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 174.1MB. Free memory was 141.2MB in the beginning and 141.1MB in the end (delta: 74.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-06 04:44:50,214 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.16ms. Allocated memory is still 174.1MB. Free memory was 124.7MB in the beginning and 149.5MB in the end (delta: -24.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-06 04:44:50,215 INFO L158 Benchmark]: Boogie Preprocessor took 24.72ms. Allocated memory is still 174.1MB. Free memory was 149.5MB in the beginning and 148.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-06 04:44:50,215 INFO L158 Benchmark]: RCFGBuilder took 179.76ms. Allocated memory is still 174.1MB. Free memory was 148.0MB in the beginning and 138.6MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-04-06 04:44:50,215 INFO L158 Benchmark]: IcfgTransformer took 192.33ms. Allocated memory is still 174.1MB. Free memory was 138.6MB in the beginning and 129.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-04-06 04:44:50,215 INFO L158 Benchmark]: TraceAbstraction took 1236.74ms. Allocated memory was 174.1MB in the beginning and 210.8MB in the end (delta: 36.7MB). Free memory was 128.9MB in the beginning and 160.2MB in the end (delta: -31.3MB). Peak memory consumption was 6.4MB. Max. memory is 8.0GB. [2022-04-06 04:44:50,217 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from IcfgTransformer: - StatisticsResult: Jordan loop acceleration statistics 1 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=1}, 1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 174.1MB. Free memory was 141.2MB in the beginning and 141.1MB in the end (delta: 74.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 225.16ms. Allocated memory is still 174.1MB. Free memory was 124.7MB in the beginning and 149.5MB in the end (delta: -24.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.72ms. Allocated memory is still 174.1MB. Free memory was 149.5MB in the beginning and 148.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 179.76ms. Allocated memory is still 174.1MB. Free memory was 148.0MB in the beginning and 138.6MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 192.33ms. Allocated memory is still 174.1MB. Free memory was 138.6MB in the beginning and 129.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 1236.74ms. Allocated memory was 174.1MB in the beginning and 210.8MB in the end (delta: 36.7MB). Free memory was 128.9MB in the beginning and 160.2MB in the end (delta: -31.3MB). Peak memory consumption was 6.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 67 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 35 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 SizeOfPredicates, 4 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-06 04:44:50,243 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...