/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/nla-digbench-scaling/fermat2-ll_valuebound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-14 23:01:13,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-14 23:01:13,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-14 23:01:13,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-14 23:01:13,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-14 23:01:13,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-14 23:01:13,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-14 23:01:13,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-14 23:01:13,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-14 23:01:13,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-14 23:01:13,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-14 23:01:13,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-14 23:01:13,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-14 23:01:13,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-14 23:01:13,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-14 23:01:13,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-14 23:01:13,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-14 23:01:13,222 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-14 23:01:13,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-14 23:01:13,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-14 23:01:13,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-14 23:01:13,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-14 23:01:13,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-14 23:01:13,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-14 23:01:13,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-14 23:01:13,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-14 23:01:13,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-14 23:01:13,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-14 23:01:13,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-14 23:01:13,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-14 23:01:13,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-14 23:01:13,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-14 23:01:13,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-14 23:01:13,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-14 23:01:13,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-14 23:01:13,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-14 23:01:13,247 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-14 23:01:13,258 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-14 23:01:13,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-14 23:01:13,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-14 23:01:13,260 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-14 23:01:13,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-14 23:01:13,260 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-14 23:01:13,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-14 23:01:13,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-14 23:01:13,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-14 23:01:13,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-14 23:01:13,261 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-14 23:01:13,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-14 23:01:13,261 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-14 23:01:13,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-14 23:01:13,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-14 23:01:13,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-14 23:01:13,262 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-14 23:01:13,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-14 23:01:13,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-14 23:01:13,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-14 23:01:13,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-14 23:01:13,263 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-14 23:01:13,263 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-14 23:01:13,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-14 23:01:13,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-14 23:01:13,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-14 23:01:13,505 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-14 23:01:13,506 INFO L275 PluginConnector]: CDTParser initialized [2022-02-14 23:01:13,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_valuebound2.c [2022-02-14 23:01:13,567 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60630e067/857fe84d08e342699de23015bb9672e5/FLAG7d03e190e [2022-02-14 23:01:13,884 INFO L306 CDTParser]: Found 1 translation units. [2022-02-14 23:01:13,884 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_valuebound2.c [2022-02-14 23:01:13,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60630e067/857fe84d08e342699de23015bb9672e5/FLAG7d03e190e [2022-02-14 23:01:14,342 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60630e067/857fe84d08e342699de23015bb9672e5 [2022-02-14 23:01:14,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-14 23:01:14,346 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-14 23:01:14,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-14 23:01:14,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-14 23:01:14,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-14 23:01:14,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 11:01:14" (1/1) ... [2022-02-14 23:01:14,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@537c9943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:01:14, skipping insertion in model container [2022-02-14 23:01:14,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 11:01:14" (1/1) ... [2022-02-14 23:01:14,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-14 23:01:14,374 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-14 23:01:14,477 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_valuebound2.c[524,537] [2022-02-14 23:01:14,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-14 23:01:14,524 INFO L203 MainTranslator]: Completed pre-run [2022-02-14 23:01:14,538 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_valuebound2.c[524,537] [2022-02-14 23:01:14,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-14 23:01:14,565 INFO L208 MainTranslator]: Completed translation [2022-02-14 23:01:14,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:01:14 WrapperNode [2022-02-14 23:01:14,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-14 23:01:14,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-14 23:01:14,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-14 23:01:14,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-14 23:01:14,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:01:14" (1/1) ... [2022-02-14 23:01:14,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:01:14" (1/1) ... [2022-02-14 23:01:14,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:01:14" (1/1) ... [2022-02-14 23:01:14,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:01:14" (1/1) ... [2022-02-14 23:01:14,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:01:14" (1/1) ... [2022-02-14 23:01:14,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:01:14" (1/1) ... [2022-02-14 23:01:14,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:01:14" (1/1) ... [2022-02-14 23:01:14,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-14 23:01:14,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-14 23:01:14,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-14 23:01:14,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-14 23:01:14,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:01:14" (1/1) ... [2022-02-14 23:01:14,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-14 23:01:14,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-14 23:01:14,638 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-14 23:01:14,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-14 23:01:14,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-14 23:01:14,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-14 23:01:14,668 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-14 23:01:14,668 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-02-14 23:01:14,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-14 23:01:14,669 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-14 23:01:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-14 23:01:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-14 23:01:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-14 23:01:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-14 23:01:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-14 23:01:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-02-14 23:01:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-14 23:01:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-14 23:01:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-14 23:01:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-14 23:01:14,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-14 23:01:14,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-14 23:01:14,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-14 23:01:14,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-14 23:01:14,718 INFO L234 CfgBuilder]: Building ICFG [2022-02-14 23:01:14,719 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-14 23:01:14,813 INFO L275 CfgBuilder]: Performing block encoding [2022-02-14 23:01:14,817 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-14 23:01:14,817 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-14 23:01:14,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 11:01:14 BoogieIcfgContainer [2022-02-14 23:01:14,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-14 23:01:14,820 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-14 23:01:14,820 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-14 23:01:14,821 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-14 23:01:14,823 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 11:01:14" (1/1) ... [2022-02-14 23:01:14,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.02 11:01:14 BasicIcfg [2022-02-14 23:01:14,838 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-14 23:01:14,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-14 23:01:14,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-14 23:01:14,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-14 23:01:14,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 11:01:14" (1/4) ... [2022-02-14 23:01:14,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@708b637f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 11:01:14, skipping insertion in model container [2022-02-14 23:01:14,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:01:14" (2/4) ... [2022-02-14 23:01:14,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@708b637f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 11:01:14, skipping insertion in model container [2022-02-14 23:01:14,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 11:01:14" (3/4) ... [2022-02-14 23:01:14,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@708b637f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 11:01:14, skipping insertion in model container [2022-02-14 23:01:14,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.02 11:01:14" (4/4) ... [2022-02-14 23:01:14,845 INFO L111 eAbstractionObserver]: Analyzing ICFG fermat2-ll_valuebound2.cJordan [2022-02-14 23:01:14,848 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-14 23:01:14,849 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-14 23:01:14,894 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-14 23:01:14,912 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-14 23:01:14,913 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-14 23:01:14,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-02-14 23:01:14,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-02-14 23:01:14,931 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 23:01:14,931 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 23:01:14,932 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 23:01:14,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 23:01:14,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1450325676, now seen corresponding path program 1 times [2022-02-14 23:01:14,943 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 23:01:14,944 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451800901] [2022-02-14 23:01:14,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 23:01:14,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 23:01:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 23:01:15,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 23:01:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 23:01:15,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 23:01:15,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 23:01:15,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 23:01:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 23:01:15,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-02-14 23:01:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 23:01:15,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-02-14 23:01:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 23:01:15,106 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-14 23:01:15,106 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 23:01:15,107 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451800901] [2022-02-14 23:01:15,107 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451800901] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 23:01:15,108 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 23:01:15,108 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-14 23:01:15,109 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230759635] [2022-02-14 23:01:15,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 23:01:15,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-14 23:01:15,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 23:01:15,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-14 23:01:15,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-14 23:01:15,141 INFO L87 Difference]: Start difference. First operand has 32 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-02-14 23:01:15,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 23:01:15,216 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2022-02-14 23:01:15,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-14 23:01:15,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 33 [2022-02-14 23:01:15,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 23:01:15,234 INFO L225 Difference]: With dead ends: 32 [2022-02-14 23:01:15,235 INFO L226 Difference]: Without dead ends: 27 [2022-02-14 23:01:15,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-14 23:01:15,242 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 18 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-14 23:01:15,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 34 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-14 23:01:15,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-02-14 23:01:15,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-02-14 23:01:15,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-02-14 23:01:15,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2022-02-14 23:01:15,281 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 33 [2022-02-14 23:01:15,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 23:01:15,282 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2022-02-14 23:01:15,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-02-14 23:01:15,282 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-02-14 23:01:15,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-02-14 23:01:15,285 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 23:01:15,286 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 23:01:15,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-14 23:01:15,286 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 23:01:15,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 23:01:15,289 INFO L85 PathProgramCache]: Analyzing trace with hash 512475503, now seen corresponding path program 1 times [2022-02-14 23:01:15,290 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 23:01:15,291 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571215913] [2022-02-14 23:01:15,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 23:01:15,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 23:01:15,336 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-14 23:01:15,337 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1402925940] [2022-02-14 23:01:15,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 23:01:15,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-14 23:01:15,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-14 23:01:15,347 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) [2022-02-14 23:01:15,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-14 23:01:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 23:01:15,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 29 conjunts are in the unsatisfiable core [2022-02-14 23:01:15,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-14 23:01:22,432 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-14 23:01:22,433 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-14 23:01:22,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 23:01:22,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571215913] [2022-02-14 23:01:22,433 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-14 23:01:22,434 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402925940] [2022-02-14 23:01:22,434 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402925940] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 23:01:22,434 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 23:01:22,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-14 23:01:22,435 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6625719] [2022-02-14 23:01:22,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 23:01:22,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-14 23:01:22,436 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 23:01:22,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-14 23:01:22,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=84, Unknown=1, NotChecked=0, Total=110 [2022-02-14 23:01:22,437 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 7 states have internal predecessors, (12), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-02-14 23:01:28,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-02-14 23:01:33,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-02-14 23:01:39,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-02-14 23:01:44,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-02-14 23:01:49,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-02-14 23:02:17,344 WARN L228 SmtUtils]: Spent 21.32s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-14 23:02:17,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 23:02:17,351 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2022-02-14 23:02:17,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-14 23:02:17,352 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 7 states have internal predecessors, (12), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 33 [2022-02-14 23:02:17,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 23:02:17,352 INFO L225 Difference]: With dead ends: 24 [2022-02-14 23:02:17,352 INFO L226 Difference]: Without dead ends: 0 [2022-02-14 23:02:17,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 34.0s TimeCoverageRelationStatistics Valid=44, Invalid=163, Unknown=3, NotChecked=0, Total=210 [2022-02-14 23:02:17,354 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 14 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 5 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.0s IncrementalHoareTripleChecker+Time [2022-02-14 23:02:17,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 112 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 71 Invalid, 5 Unknown, 0 Unchecked, 27.0s Time] [2022-02-14 23:02:17,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-14 23:02:17,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-14 23:02:17,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-14 23:02:17,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-14 23:02:17,356 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2022-02-14 23:02:17,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 23:02:17,357 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-14 23:02:17,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 7 states have internal predecessors, (12), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-02-14 23:02:17,357 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-14 23:02:17,357 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-14 23:02:17,359 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-14 23:02:17,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-14 23:02:17,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-14 23:02:17,563 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-14 23:02:17,564 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-14 23:02:17,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 11:02:17 BasicIcfg [2022-02-14 23:02:17,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-14 23:02:17,570 INFO L158 Benchmark]: Toolchain (without parser) took 63221.80ms. Allocated memory was 197.1MB in the beginning and 239.1MB in the end (delta: 41.9MB). Free memory was 148.0MB in the beginning and 157.4MB in the end (delta: -9.4MB). Peak memory consumption was 32.7MB. Max. memory is 8.0GB. [2022-02-14 23:02:17,571 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 197.1MB. Free memory was 164.5MB in the beginning and 164.4MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-14 23:02:17,571 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.69ms. Allocated memory is still 197.1MB. Free memory was 147.9MB in the beginning and 173.3MB in the end (delta: -25.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-14 23:02:17,572 INFO L158 Benchmark]: Boogie Preprocessor took 40.66ms. Allocated memory is still 197.1MB. Free memory was 173.3MB in the beginning and 172.1MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-14 23:02:17,572 INFO L158 Benchmark]: RCFGBuilder took 209.37ms. Allocated memory is still 197.1MB. Free memory was 171.8MB in the beginning and 161.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-14 23:02:17,572 INFO L158 Benchmark]: IcfgTransformer took 18.72ms. Allocated memory is still 197.1MB. Free memory was 161.6MB in the beginning and 160.3MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-14 23:02:17,573 INFO L158 Benchmark]: TraceAbstraction took 62728.15ms. Allocated memory was 197.1MB in the beginning and 239.1MB in the end (delta: 41.9MB). Free memory was 159.9MB in the beginning and 157.4MB in the end (delta: 2.4MB). Peak memory consumption was 44.8MB. Max. memory is 8.0GB. [2022-02-14 23:02:17,574 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 197.1MB. Free memory was 164.5MB in the beginning and 164.4MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 214.69ms. Allocated memory is still 197.1MB. Free memory was 147.9MB in the beginning and 173.3MB in the end (delta: -25.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.66ms. Allocated memory is still 197.1MB. Free memory was 173.3MB in the beginning and 172.1MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 209.37ms. Allocated memory is still 197.1MB. Free memory was 171.8MB in the beginning and 161.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 18.72ms. Allocated memory is still 197.1MB. Free memory was 161.6MB in the beginning and 160.3MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 62728.15ms. Allocated memory was 197.1MB in the beginning and 239.1MB in the end (delta: 41.9MB). Free memory was 159.9MB in the beginning and 157.4MB in the end (delta: 2.4MB). Peak memory consumption was 44.8MB. 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: 14]: 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 5 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 62.7s, OverallIterations: 2, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 55.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 27.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 146 SdHoareTripleChecker+Invalid, 27.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 98 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 48 mSDtfsCounter, 79 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 34.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 16, 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, 0.1s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 299 SizeOfPredicates, 6 NumberOfNonLiveVariables, 99 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 48/48 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! [2022-02-14 23:02:17,594 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...