/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/geo2-ll.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-14 21:47:45,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-14 21:47:45,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-14 21:47:45,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-14 21:47:45,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-14 21:47:45,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-14 21:47:45,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-14 21:47:45,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-14 21:47:45,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-14 21:47:45,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-14 21:47:45,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-14 21:47:45,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-14 21:47:45,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-14 21:47:45,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-14 21:47:45,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-14 21:47:45,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-14 21:47:45,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-14 21:47:45,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-14 21:47:45,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-14 21:47:45,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-14 21:47:45,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-14 21:47:45,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-14 21:47:45,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-14 21:47:45,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-14 21:47:45,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-14 21:47:45,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-14 21:47:45,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-14 21:47:45,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-14 21:47:45,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-14 21:47:45,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-14 21:47:45,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-14 21:47:45,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-14 21:47:45,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-14 21:47:45,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-14 21:47:45,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-14 21:47:45,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-14 21:47:45,865 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-14 21:47:45,877 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-14 21:47:45,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-14 21:47:45,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-14 21:47:45,879 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-14 21:47:45,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-14 21:47:45,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-14 21:47:45,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-14 21:47:45,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-14 21:47:45,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-14 21:47:45,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-14 21:47:45,881 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-14 21:47:45,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-14 21:47:45,881 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-14 21:47:45,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-14 21:47:45,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-14 21:47:45,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-14 21:47:45,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-14 21:47:45,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-14 21:47:45,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-14 21:47:45,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-14 21:47:45,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-14 21:47:45,883 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-14 21:47:45,883 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-14 21:47:46,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-14 21:47:46,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-14 21:47:46,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-14 21:47:46,137 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-14 21:47:46,138 INFO L275 PluginConnector]: CDTParser initialized [2022-02-14 21:47:46,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/geo2-ll.c [2022-02-14 21:47:46,203 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18989d679/ddc7e173522446bcb8b04e25db1dd855/FLAG561210ed8 [2022-02-14 21:47:46,536 INFO L306 CDTParser]: Found 1 translation units. [2022-02-14 21:47:46,537 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/geo2-ll.c [2022-02-14 21:47:46,542 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18989d679/ddc7e173522446bcb8b04e25db1dd855/FLAG561210ed8 [2022-02-14 21:47:46,949 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18989d679/ddc7e173522446bcb8b04e25db1dd855 [2022-02-14 21:47:46,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-14 21:47:46,953 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-14 21:47:46,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-14 21:47:46,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-14 21:47:46,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-14 21:47:46,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 09:47:46" (1/1) ... [2022-02-14 21:47:46,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7055c15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:47:46, skipping insertion in model container [2022-02-14 21:47:46,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 09:47:46" (1/1) ... [2022-02-14 21:47:46,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-14 21:47:46,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-14 21:47:47,103 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/geo2-ll.c[525,538] [2022-02-14 21:47:47,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-14 21:47:47,126 INFO L203 MainTranslator]: Completed pre-run [2022-02-14 21:47:47,139 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/geo2-ll.c[525,538] [2022-02-14 21:47:47,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-14 21:47:47,158 INFO L208 MainTranslator]: Completed translation [2022-02-14 21:47:47,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:47:47 WrapperNode [2022-02-14 21:47:47,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-14 21:47:47,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-14 21:47:47,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-14 21:47:47,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-14 21:47:47,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:47:47" (1/1) ... [2022-02-14 21:47:47,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:47:47" (1/1) ... [2022-02-14 21:47:47,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:47:47" (1/1) ... [2022-02-14 21:47:47,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:47:47" (1/1) ... [2022-02-14 21:47:47,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:47:47" (1/1) ... [2022-02-14 21:47:47,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:47:47" (1/1) ... [2022-02-14 21:47:47,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:47:47" (1/1) ... [2022-02-14 21:47:47,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-14 21:47:47,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-14 21:47:47,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-14 21:47:47,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-14 21:47:47,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:47:47" (1/1) ... [2022-02-14 21:47:47,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-14 21:47:47,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-14 21:47:47,236 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 21:47:47,259 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 21:47:47,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-14 21:47:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-14 21:47:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-14 21:47:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-02-14 21:47:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-14 21:47:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-14 21:47:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-14 21:47:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-14 21:47:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-14 21:47:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-14 21:47:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-14 21:47:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-02-14 21:47:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-14 21:47:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-14 21:47:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-14 21:47:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-14 21:47:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-14 21:47:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-14 21:47:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-14 21:47:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-14 21:47:47,344 INFO L234 CfgBuilder]: Building ICFG [2022-02-14 21:47:47,346 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-14 21:47:47,490 INFO L275 CfgBuilder]: Performing block encoding [2022-02-14 21:47:47,501 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-14 21:47:47,501 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-14 21:47:47,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 09:47:47 BoogieIcfgContainer [2022-02-14 21:47:47,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-14 21:47:47,508 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-14 21:47:47,508 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-14 21:47:47,509 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-14 21:47:47,514 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 09:47:47" (1/1) ... [2022-02-14 21:47:47,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.02 09:47:47 BasicIcfg [2022-02-14 21:47:47,543 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-14 21:47:47,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-14 21:47:47,544 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-14 21:47:47,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-14 21:47:47,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 09:47:46" (1/4) ... [2022-02-14 21:47:47,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398b754a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 09:47:47, skipping insertion in model container [2022-02-14 21:47:47,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:47:47" (2/4) ... [2022-02-14 21:47:47,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398b754a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 09:47:47, skipping insertion in model container [2022-02-14 21:47:47,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 09:47:47" (3/4) ... [2022-02-14 21:47:47,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398b754a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 09:47:47, skipping insertion in model container [2022-02-14 21:47:47,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.02 09:47:47" (4/4) ... [2022-02-14 21:47:47,564 INFO L111 eAbstractionObserver]: Analyzing ICFG geo2-ll.cJordan [2022-02-14 21:47:47,568 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-14 21:47:47,568 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-14 21:47:47,626 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-14 21:47:47,644 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 21:47:47,649 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-14 21:47:47,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-14 21:47:47,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-02-14 21:47:47,687 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 21:47:47,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 21:47:47,688 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 21:47:47,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 21:47:47,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1229966674, now seen corresponding path program 1 times [2022-02-14 21:47:47,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 21:47:47,707 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624328703] [2022-02-14 21:47:47,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:47:47,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 21:47:47,807 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-14 21:47:47,808 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1125485372] [2022-02-14 21:47:47,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:47:47,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-14 21:47:47,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-14 21:47:47,810 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 21:47:47,812 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 21:47:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:47:47,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-14 21:47:47,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-14 21:47:48,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 21:47:48,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-14 21:47:48,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 21:47:48,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624328703] [2022-02-14 21:47:48,023 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-14 21:47:48,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125485372] [2022-02-14 21:47:48,024 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125485372] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 21:47:48,024 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 21:47:48,024 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-14 21:47:48,026 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353573109] [2022-02-14 21:47:48,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 21:47:48,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-14 21:47:48,030 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 21:47:48,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-14 21:47:48,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-14 21:47:48,058 INFO L87 Difference]: Start difference. First operand has 21 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:47:48,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 21:47:48,125 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2022-02-14 21:47:48,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-14 21:47:48,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 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 [2022-02-14 21:47:48,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 21:47:48,138 INFO L225 Difference]: With dead ends: 32 [2022-02-14 21:47:48,138 INFO L226 Difference]: Without dead ends: 23 [2022-02-14 21:47:48,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-14 21:47:48,142 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 8 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-14 21:47:48,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 73 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-14 21:47:48,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-02-14 21:47:48,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-02-14 21:47:48,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-14 21:47:48,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2022-02-14 21:47:48,172 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 11 [2022-02-14 21:47:48,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 21:47:48,172 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2022-02-14 21:47:48,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:47:48,173 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-02-14 21:47:48,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-02-14 21:47:48,173 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 21:47:48,174 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 21:47:48,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-14 21:47:48,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-02-14 21:47:48,392 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 21:47:48,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 21:47:48,393 INFO L85 PathProgramCache]: Analyzing trace with hash 726352862, now seen corresponding path program 1 times [2022-02-14 21:47:48,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 21:47:48,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917700539] [2022-02-14 21:47:48,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:47:48,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 21:47:48,404 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-14 21:47:48,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1405603873] [2022-02-14 21:47:48,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:47:48,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-14 21:47:48,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-14 21:47:48,412 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-14 21:47:48,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-14 21:47:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:47:48,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-14 21:47:48,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-14 21:47:48,637 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 21:47:48,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-14 21:47:48,734 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 21:47:48,734 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 21:47:48,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917700539] [2022-02-14 21:47:48,735 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-14 21:47:48,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405603873] [2022-02-14 21:47:48,735 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405603873] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-14 21:47:48,735 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-14 21:47:48,735 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2022-02-14 21:47:48,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822402085] [2022-02-14 21:47:48,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 21:47:48,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-14 21:47:48,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 21:47:48,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-14 21:47:48,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-02-14 21:47:48,738 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-14 21:47:48,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 21:47:48,871 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-02-14 21:47:48,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-14 21:47:48,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2022-02-14 21:47:48,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 21:47:48,872 INFO L225 Difference]: With dead ends: 21 [2022-02-14 21:47:48,872 INFO L226 Difference]: Without dead ends: 0 [2022-02-14 21:47:48,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-02-14 21:47:48,874 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-14 21:47:48,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 45 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-14 21:47:48,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-14 21:47:48,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-14 21:47:48,875 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 21:47:48,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-14 21:47:48,875 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-02-14 21:47:48,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 21:47:48,876 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-14 21:47:48,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-14 21:47:48,876 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-14 21:47:48,876 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-14 21:47:48,878 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-14 21:47:48,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-14 21:47:49,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-02-14 21:47:49,102 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-14 21:47:49,103 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-14 21:47:49,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 09:47:49 BasicIcfg [2022-02-14 21:47:49,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-14 21:47:49,106 INFO L158 Benchmark]: Toolchain (without parser) took 2153.44ms. Allocated memory was 194.0MB in the beginning and 257.9MB in the end (delta: 64.0MB). Free memory was 138.4MB in the beginning and 164.3MB in the end (delta: -25.9MB). Peak memory consumption was 37.8MB. Max. memory is 8.0GB. [2022-02-14 21:47:49,107 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 194.0MB. Free memory is still 154.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-14 21:47:49,107 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.35ms. Allocated memory was 194.0MB in the beginning and 257.9MB in the end (delta: 64.0MB). Free memory was 138.1MB in the beginning and 231.4MB in the end (delta: -93.3MB). Peak memory consumption was 13.9MB. Max. memory is 8.0GB. [2022-02-14 21:47:49,108 INFO L158 Benchmark]: Boogie Preprocessor took 32.17ms. Allocated memory is still 257.9MB. Free memory was 231.4MB in the beginning and 229.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-14 21:47:49,108 INFO L158 Benchmark]: RCFGBuilder took 315.31ms. Allocated memory is still 257.9MB. Free memory was 229.3MB in the beginning and 218.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-14 21:47:49,108 INFO L158 Benchmark]: IcfgTransformer took 34.77ms. Allocated memory is still 257.9MB. Free memory was 218.3MB in the beginning and 217.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-14 21:47:49,109 INFO L158 Benchmark]: TraceAbstraction took 1561.47ms. Allocated memory is still 257.9MB. Free memory was 216.7MB in the beginning and 164.3MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 8.0GB. [2022-02-14 21:47:49,111 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 194.0MB. Free memory is still 154.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 204.35ms. Allocated memory was 194.0MB in the beginning and 257.9MB in the end (delta: 64.0MB). Free memory was 138.1MB in the beginning and 231.4MB in the end (delta: -93.3MB). Peak memory consumption was 13.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.17ms. Allocated memory is still 257.9MB. Free memory was 231.4MB in the beginning and 229.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 315.31ms. Allocated memory is still 257.9MB. Free memory was 229.3MB in the beginning and 218.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 34.77ms. Allocated memory is still 257.9MB. Free memory was 218.3MB in the beginning and 217.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 1561.47ms. Allocated memory is still 257.9MB. Free memory was 216.7MB in the beginning and 164.3MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. 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: 17]: 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, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 118 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 88 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 30 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=1, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 179 SizeOfPredicates, 3 NumberOfNonLiveVariables, 143 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 6/8 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 21:47:49,126 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...