/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/loops/while_infinite_loop_3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 04:33:20,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 04:33:20,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 04:33:20,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-06 04:33:20,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-06 04:33:20,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-06 04:33:20,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-06 04:33:20,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-06 04:33:20,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-06 04:33:20,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-06 04:33:20,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-06 04:33:20,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-06 04:33:20,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-06 04:33:20,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-06 04:33:20,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-06 04:33:20,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-06 04:33:20,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-06 04:33:20,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-06 04:33:20,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-06 04:33:20,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-06 04:33:20,190 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-06 04:33:20,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-06 04:33:20,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-06 04:33:20,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-06 04:33:20,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-06 04:33:20,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-06 04:33:20,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-06 04:33:20,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-06 04:33:20,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-06 04:33:20,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-06 04:33:20,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-06 04:33:20,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-06 04:33:20,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-06 04:33:20,207 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-06 04:33:20,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-06 04:33:20,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-06 04:33:20,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-06 04:33:20,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-06 04:33:20,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-06 04:33:20,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 04:33:20,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 04:33:20,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 04:33:20,212 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-06 04:33:20,223 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 04:33:20,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 04:33:20,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 04:33:20,225 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-06 04:33:20,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 04:33:20,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-06 04:33:20,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 04:33:20,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 04:33:20,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 04:33:20,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 04:33:20,227 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-06 04:33:20,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 04:33:20,227 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 04:33:20,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 04:33:20,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 04:33:20,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 04:33:20,228 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-06 04:33:20,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 04:33:20,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 04:33:20,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 04:33:20,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-06 04:33:20,230 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-06 04:33:20,230 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 04:33:20,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 04:33:20,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 04:33:20,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 04:33:20,494 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 04:33:20,496 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 04:33:20,497 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/while_infinite_loop_3.c [2022-04-06 04:33:20,560 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d353aa2d/ee862ad98e4347878d85d3e1d536d662/FLAG7df38e057 [2022-04-06 04:33:20,929 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 04:33:20,929 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_3.c [2022-04-06 04:33:20,934 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d353aa2d/ee862ad98e4347878d85d3e1d536d662/FLAG7df38e057 [2022-04-06 04:33:20,944 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d353aa2d/ee862ad98e4347878d85d3e1d536d662 [2022-04-06 04:33:20,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 04:33:20,947 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-06 04:33:20,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 04:33:20,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 04:33:20,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 04:33:20,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 04:33:20" (1/1) ... [2022-04-06 04:33:20,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ce7c3e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:33:20, skipping insertion in model container [2022-04-06 04:33:20,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 04:33:20" (1/1) ... [2022-04-06 04:33:20,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 04:33:20,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 04:33:21,120 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_3.c[333,346] [2022-04-06 04:33:21,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 04:33:21,149 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 04:33:21,159 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_3.c[333,346] [2022-04-06 04:33:21,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 04:33:21,172 INFO L208 MainTranslator]: Completed translation [2022-04-06 04:33:21,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:33:21 WrapperNode [2022-04-06 04:33:21,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 04:33:21,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 04:33:21,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 04:33:21,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 04:33:21,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:33:21" (1/1) ... [2022-04-06 04:33:21,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:33:21" (1/1) ... [2022-04-06 04:33:21,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:33:21" (1/1) ... [2022-04-06 04:33:21,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:33:21" (1/1) ... [2022-04-06 04:33:21,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:33:21" (1/1) ... [2022-04-06 04:33:21,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:33:21" (1/1) ... [2022-04-06 04:33:21,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:33:21" (1/1) ... [2022-04-06 04:33:21,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 04:33:21,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 04:33:21,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 04:33:21,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 04:33:21,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:33:21" (1/1) ... [2022-04-06 04:33:21,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 04:33:21,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 04:33:21,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-06 04:33:21,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-06 04:33:21,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 04:33:21,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 04:33:21,275 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 04:33:21,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-06 04:33:21,275 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2022-04-06 04:33:21,275 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 04:33:21,276 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 04:33:21,276 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 04:33:21,276 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 04:33:21,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 04:33:21,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-06 04:33:21,276 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2022-04-06 04:33:21,276 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 04:33:21,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 04:33:21,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 04:33:21,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 04:33:21,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 04:33:21,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 04:33:21,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 04:33:21,324 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 04:33:21,325 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 04:33:21,392 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 04:33:21,398 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 04:33:21,398 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-06 04:33:21,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 04:33:21 BoogieIcfgContainer [2022-04-06 04:33:21,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 04:33:21,400 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-06 04:33:21,401 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-06 04:33:21,404 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-06 04:33:21,407 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 04:33:21" (1/1) ... [2022-04-06 04:33:21,409 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-06 04:33:21,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 04:33:21 BasicIcfg [2022-04-06 04:33:21,437 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-06 04:33:21,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 04:33:21,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 04:33:21,441 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 04:33:21,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 04:33:20" (1/4) ... [2022-04-06 04:33:21,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7401e80d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 04:33:21, skipping insertion in model container [2022-04-06 04:33:21,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 04:33:21" (2/4) ... [2022-04-06 04:33:21,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7401e80d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 04:33:21, skipping insertion in model container [2022-04-06 04:33:21,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 04:33:21" (3/4) ... [2022-04-06 04:33:21,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7401e80d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 04:33:21, skipping insertion in model container [2022-04-06 04:33:21,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 04:33:21" (4/4) ... [2022-04-06 04:33:21,444 INFO L111 eAbstractionObserver]: Analyzing ICFG while_infinite_loop_3.cJordan [2022-04-06 04:33:21,448 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-06 04:33:21,449 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 04:33:21,514 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 04:33:21,527 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-06 04:33:21,528 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 04:33:21,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 12 states have (on average 1.5) internal successors, (18), 14 states have internal predecessors, (18), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-06 04:33:21,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-06 04:33:21,546 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 04:33:21,547 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 04:33:21,547 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 04:33:21,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 04:33:21,552 INFO L85 PathProgramCache]: Analyzing trace with hash -459487812, now seen corresponding path program 1 times [2022-04-06 04:33:21,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 04:33:21,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557240185] [2022-04-06 04:33:21,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 04:33:21,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 04:33:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:33:21,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 04:33:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:33:21,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 04:33:21,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 04:33:21,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557240185] [2022-04-06 04:33:21,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557240185] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 04:33:21,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 04:33:21,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-06 04:33:21,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349701962] [2022-04-06 04:33:21,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 04:33:21,719 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-06 04:33:21,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 04:33:21,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-06 04:33:21,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-06 04:33:21,746 INFO L87 Difference]: Start difference. First operand has 23 states, 12 states have (on average 1.5) internal successors, (18), 14 states have internal predecessors, (18), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 04:33:21,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 04:33:21,788 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-04-06 04:33:21,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-06 04:33:21,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-04-06 04:33:21,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 04:33:21,796 INFO L225 Difference]: With dead ends: 19 [2022-04-06 04:33:21,796 INFO L226 Difference]: Without dead ends: 19 [2022-04-06 04:33:21,798 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-06 04:33:21,801 INFO L913 BasicCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-06 04:33:21,802 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 20 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-06 04:33:21,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-04-06 04:33:21,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2022-04-06 04:33:21,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-06 04:33:21,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-04-06 04:33:21,829 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10 [2022-04-06 04:33:21,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 04:33:21,830 INFO L478 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-04-06 04:33:21,830 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 04:33:21,830 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-04-06 04:33:21,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-06 04:33:21,831 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 04:33:21,831 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 04:33:21,831 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 04:33:21,832 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 04:33:21,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 04:33:21,833 INFO L85 PathProgramCache]: Analyzing trace with hash -2132896698, now seen corresponding path program 1 times [2022-04-06 04:33:21,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 04:33:21,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921817969] [2022-04-06 04:33:21,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 04:33:21,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 04:33:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:33:21,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 04:33:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:33:21,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-06 04:33:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 04:33:21,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 04:33:21,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 04:33:21,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921817969] [2022-04-06 04:33:21,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921817969] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 04:33:21,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 04:33:21,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-06 04:33:21,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201791485] [2022-04-06 04:33:21,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 04:33:21,980 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-06 04:33:21,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 04:33:21,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-06 04:33:21,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-04-06 04:33:21,983 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-06 04:33:22,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 04:33:22,085 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-04-06 04:33:22,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-06 04:33:22,086 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2022-04-06 04:33:22,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 04:33:22,086 INFO L225 Difference]: With dead ends: 15 [2022-04-06 04:33:22,086 INFO L226 Difference]: Without dead ends: 0 [2022-04-06 04:33:22,091 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-04-06 04:33:22,093 INFO L913 BasicCegarLoop]: 11 mSDtfsCounter, 17 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-06 04:33:22,094 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 24 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-06 04:33:22,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-06 04:33:22,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-06 04:33:22,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-06 04:33:22,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-06 04:33:22,098 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-04-06 04:33:22,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 04:33:22,099 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-06 04:33:22,102 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-06 04:33:22,102 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-06 04:33:22,105 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-06 04:33:22,108 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-06 04:33:22,108 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-06 04:33:22,111 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-06 04:33:22,113 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-06 04:33:22,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 04:33:22 BasicIcfg [2022-04-06 04:33:22,117 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-06 04:33:22,118 INFO L158 Benchmark]: Toolchain (without parser) took 1171.22ms. Allocated memory was 186.6MB in the beginning and 245.4MB in the end (delta: 58.7MB). Free memory was 130.2MB in the beginning and 172.5MB in the end (delta: -42.4MB). Peak memory consumption was 16.2MB. Max. memory is 8.0GB. [2022-04-06 04:33:22,118 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 186.6MB. Free memory is still 146.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-06 04:33:22,119 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.29ms. Allocated memory was 186.6MB in the beginning and 245.4MB in the end (delta: 58.7MB). Free memory was 130.0MB in the beginning and 216.9MB in the end (delta: -86.8MB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB. [2022-04-06 04:33:22,119 INFO L158 Benchmark]: Boogie Preprocessor took 32.13ms. Allocated memory is still 245.4MB. Free memory was 216.9MB in the beginning and 215.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-06 04:33:22,119 INFO L158 Benchmark]: RCFGBuilder took 193.76ms. Allocated memory is still 245.4MB. Free memory was 215.4MB in the beginning and 206.1MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-04-06 04:33:22,120 INFO L158 Benchmark]: IcfgTransformer took 36.38ms. Allocated memory is still 245.4MB. Free memory was 206.1MB in the beginning and 204.8MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-06 04:33:22,120 INFO L158 Benchmark]: TraceAbstraction took 679.12ms. Allocated memory is still 245.4MB. Free memory was 204.4MB in the beginning and 172.5MB in the end (delta: 31.9MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2022-04-06 04:33:22,122 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 186.6MB. Free memory is still 146.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 224.29ms. Allocated memory was 186.6MB in the beginning and 245.4MB in the end (delta: 58.7MB). Free memory was 130.0MB in the beginning and 216.9MB in the end (delta: -86.8MB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.13ms. Allocated memory is still 245.4MB. Free memory was 216.9MB in the beginning and 215.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 193.76ms. Allocated memory is still 245.4MB. Free memory was 215.4MB in the beginning and 206.1MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 36.38ms. Allocated memory is still 245.4MB. Free memory was 206.1MB in the beginning and 204.8MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 679.12ms. Allocated memory is still 245.4MB. Free memory was 204.4MB in the beginning and 172.5MB in the end (delta: 31.9MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 29 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-06 04:33:22,158 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...