/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/float-benchs/interpolation2.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 16:44:22,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 16:44:22,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 16:44:22,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 16:44:22,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 16:44:22,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 16:44:22,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 16:44:22,614 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 16:44:22,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 16:44:22,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 16:44:22,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 16:44:22,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 16:44:22,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 16:44:22,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 16:44:22,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 16:44:22,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 16:44:22,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 16:44:22,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 16:44:22,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 16:44:22,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 16:44:22,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 16:44:22,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 16:44:22,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 16:44:22,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 16:44:22,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 16:44:22,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 16:44:22,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 16:44:22,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 16:44:22,657 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 16:44:22,672 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 16:44:22,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 16:44:22,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 16:44:22,674 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 16:44:22,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 16:44:22,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 16:44:22,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 16:44:22,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 16:44:22,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 16:44:22,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 16:44:22,674 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 16:44:22,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 16:44:22,675 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 16:44:22,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 16:44:22,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 16:44:22,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 16:44:22,675 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 16:44:22,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 16:44:22,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:44:22,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 16:44:22,676 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 16:44:22,676 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 16:44:22,676 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 16:44:22,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 16:44:22,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 16:44:22,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 16:44:22,925 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 16:44:22,925 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 16:44:22,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/interpolation2.c.v+nlh-reducer.c [2022-01-31 16:44:22,978 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b7e93e77/bfdb00f502b74bd39671681585ad795e/FLAG4ce200bbc [2022-01-31 16:44:23,382 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 16:44:23,383 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/interpolation2.c.v+nlh-reducer.c [2022-01-31 16:44:23,388 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b7e93e77/bfdb00f502b74bd39671681585ad795e/FLAG4ce200bbc [2022-01-31 16:44:23,399 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b7e93e77/bfdb00f502b74bd39671681585ad795e [2022-01-31 16:44:23,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 16:44:23,402 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 16:44:23,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 16:44:23,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 16:44:23,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 16:44:23,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:44:23" (1/1) ... [2022-01-31 16:44:23,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@242de323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:23, skipping insertion in model container [2022-01-31 16:44:23,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:44:23" (1/1) ... [2022-01-31 16:44:23,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 16:44:23,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 16:44:23,653 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/interpolation2.c.v+nlh-reducer.c[1463,1476] [2022-01-31 16:44:23,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:44:23,716 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 16:44:23,753 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/interpolation2.c.v+nlh-reducer.c[1463,1476] [2022-01-31 16:44:23,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:44:23,774 INFO L208 MainTranslator]: Completed translation [2022-01-31 16:44:23,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:23 WrapperNode [2022-01-31 16:44:23,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 16:44:23,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 16:44:23,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 16:44:23,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 16:44:23,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:23" (1/1) ... [2022-01-31 16:44:23,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:23" (1/1) ... [2022-01-31 16:44:23,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:23" (1/1) ... [2022-01-31 16:44:23,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:23" (1/1) ... [2022-01-31 16:44:23,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:23" (1/1) ... [2022-01-31 16:44:23,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:23" (1/1) ... [2022-01-31 16:44:23,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:23" (1/1) ... [2022-01-31 16:44:23,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 16:44:23,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 16:44:23,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 16:44:23,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 16:44:23,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:23" (1/1) ... [2022-01-31 16:44:23,839 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:44:23,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:44:23,860 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) [2022-01-31 16:44:23,887 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 [2022-01-31 16:44:23,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 16:44:23,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 16:44:23,901 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 16:44:23,901 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-31 16:44:23,901 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 16:44:23,901 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 16:44:23,902 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 16:44:23,902 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 16:44:23,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 16:44:23,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2022-01-31 16:44:23,902 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-31 16:44:23,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 16:44:23,903 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 16:44:23,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 16:44:23,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-01-31 16:44:23,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 16:44:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 16:44:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 16:44:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 16:44:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 16:44:23,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 16:44:23,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 16:44:23,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 16:44:23,991 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 16:44:23,993 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 16:44:24,225 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 16:44:24,231 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 16:44:24,231 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-31 16:44:24,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:44:24 BoogieIcfgContainer [2022-01-31 16:44:24,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 16:44:24,233 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 16:44:24,234 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 16:44:24,236 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 16:44:24,239 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:44:24" (1/1) ... [2022-01-31 16:44:24,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:44:24 BasicIcfg [2022-01-31 16:44:24,258 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 16:44:24,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 16:44:24,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 16:44:24,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 16:44:24,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:44:23" (1/4) ... [2022-01-31 16:44:24,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1a889a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:44:24, skipping insertion in model container [2022-01-31 16:44:24,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:23" (2/4) ... [2022-01-31 16:44:24,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1a889a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:44:24, skipping insertion in model container [2022-01-31 16:44:24,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:44:24" (3/4) ... [2022-01-31 16:44:24,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1a889a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:44:24, skipping insertion in model container [2022-01-31 16:44:24,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:44:24" (4/4) ... [2022-01-31 16:44:24,264 INFO L111 eAbstractionObserver]: Analyzing ICFG interpolation2.c.v+nlh-reducer.cJordan [2022-01-31 16:44:24,269 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 16:44:24,269 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 16:44:24,305 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 16:44:24,314 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 [2022-01-31 16:44:24,314 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 16:44:24,327 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 24 states have (on average 1.625) internal successors, (39), 25 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-31 16:44:24,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-31 16:44:24,339 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:44:24,339 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:44:24,340 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:44:24,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:44:24,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1305217802, now seen corresponding path program 1 times [2022-01-31 16:44:24,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:44:24,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794185920] [2022-01-31 16:44:24,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:44:24,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:44:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:44:24,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:44:24,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:44:24,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:44:24,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:44:24,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794185920] [2022-01-31 16:44:24,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794185920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:44:24,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:44:24,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:44:24,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722566690] [2022-01-31 16:44:24,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:44:24,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:44:24,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:44:24,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:44:24,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:44:24,681 INFO L87 Difference]: Start difference. First operand has 30 states, 24 states have (on average 1.625) internal successors, (39), 25 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:44:24,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:44:24,910 INFO L93 Difference]: Finished difference Result 38 states and 49 transitions. [2022-01-31 16:44:24,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 16:44:24,912 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-01-31 16:44:24,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:44:24,919 INFO L225 Difference]: With dead ends: 38 [2022-01-31 16:44:24,919 INFO L226 Difference]: Without dead ends: 26 [2022-01-31 16:44:24,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-31 16:44:24,927 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 70 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:44:24,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 63 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:44:24,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-01-31 16:44:24,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-01-31 16:44:24,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:44:24,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-01-31 16:44:24,950 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 17 [2022-01-31 16:44:24,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:44:24,951 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-01-31 16:44:24,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:44:24,951 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-01-31 16:44:24,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-31 16:44:24,952 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:44:24,952 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:44:24,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 16:44:24,952 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:44:24,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:44:24,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1306200905, now seen corresponding path program 1 times [2022-01-31 16:44:24,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:44:24,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515310782] [2022-01-31 16:44:24,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:44:24,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:44:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 16:44:24,978 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 16:44:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 16:44:25,014 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-31 16:44:25,014 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 16:44:25,016 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 16:44:25,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 16:44:25,020 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 16:44:25,024 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 16:44:25,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:44:25 BasicIcfg [2022-01-31 16:44:25,053 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 16:44:25,053 INFO L158 Benchmark]: Toolchain (without parser) took 1651.00ms. Allocated memory was 179.3MB in the beginning and 238.0MB in the end (delta: 58.7MB). Free memory was 124.8MB in the beginning and 155.0MB in the end (delta: -30.2MB). Peak memory consumption was 29.7MB. Max. memory is 8.0GB. [2022-01-31 16:44:25,054 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 179.3MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 16:44:25,054 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.33ms. Allocated memory was 179.3MB in the beginning and 238.0MB in the end (delta: 58.7MB). Free memory was 124.6MB in the beginning and 211.5MB in the end (delta: -86.9MB). Peak memory consumption was 14.3MB. Max. memory is 8.0GB. [2022-01-31 16:44:25,055 INFO L158 Benchmark]: Boogie Preprocessor took 54.56ms. Allocated memory is still 238.0MB. Free memory was 211.5MB in the beginning and 209.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 16:44:25,055 INFO L158 Benchmark]: RCFGBuilder took 400.99ms. Allocated memory is still 238.0MB. Free memory was 209.5MB in the beginning and 193.8MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-01-31 16:44:25,056 INFO L158 Benchmark]: IcfgTransformer took 24.59ms. Allocated memory is still 238.0MB. Free memory was 193.8MB in the beginning and 192.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-31 16:44:25,056 INFO L158 Benchmark]: TraceAbstraction took 793.36ms. Allocated memory is still 238.0MB. Free memory was 192.2MB in the beginning and 155.0MB in the end (delta: 37.2MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2022-01-31 16:44:25,059 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 179.3MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 372.33ms. Allocated memory was 179.3MB in the beginning and 238.0MB in the end (delta: 58.7MB). Free memory was 124.6MB in the beginning and 211.5MB in the end (delta: -86.9MB). Peak memory consumption was 14.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 54.56ms. Allocated memory is still 238.0MB. Free memory was 211.5MB in the beginning and 209.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 400.99ms. Allocated memory is still 238.0MB. Free memory was 209.5MB in the beginning and 193.8MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * IcfgTransformer took 24.59ms. Allocated memory is still 238.0MB. Free memory was 193.8MB in the beginning and 192.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 793.36ms. Allocated memory is still 238.0MB. Free memory was 192.2MB in the beginning and 155.0MB in the end (delta: 37.2MB). Peak memory consumption was 37.7MB. 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 - UnprovableResult [Line: 53]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 34, overapproximation of someBinaryDOUBLEComparisonOperation at line 40, overapproximation of to_real at line 18, overapproximation of someBinaryArithmeticFLOAToperation at line 38. Possible FailurePath: [L1] int __return_main; [L12] int __return_136; VAL [\old(__return_136)=52, \old(__return_main)=56, __return_136=0, __return_main=0] [L15] int main__i; [L16] float main__z; [L17] float main__t; [L18] float main__min[5] = { 5, 10, 12, 30, 150 }; [L19] float main__max[5] = { 10, 12, 30, 150, 300 }; [L20] float main__org[5] = { 1, 5, -10, 30, 20 }; [L21] float main__slope[5] = { 4, -15, 40, -10, 0 }; [L22] main__t = __VERIFIER_nondet_float() [L23] int main____CPAchecker_TMP_0; [L24] EXPR main__min[0] VAL [\old(__return_136)=0, __return_136=0, __return_main=0, main__max={5:0}, main__min={6:0}, main__min[0]=54, main__org={4:0}, main__slope={7:0}, main__t=51] [L24] COND TRUE main__t >= (main__min[0]) [L26] EXPR main__max[4UL] VAL [\old(__return_136)=0, __return_136=0, __return_main=0, main__max={5:0}, main__max[4UL]=50, main__min={6:0}, main__org={4:0}, main__slope={7:0}, main__t=51] [L26] COND TRUE main__t <= (main__max[4UL]) [L28] main____CPAchecker_TMP_0 = 1 VAL [\old(__return_136)=0, __return_136=0, __return_main=0, main____CPAchecker_TMP_0=1, main__max={5:0}, main__min={6:0}, main__org={4:0}, main__slope={7:0}, main__t=51] [L29] COND TRUE main____CPAchecker_TMP_0 != 0 [L31] main__i = 0 VAL [\old(__return_136)=0, __return_136=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={5:0}, main__min={6:0}, main__org={4:0}, main__slope={7:0}, main__t=51] [L32] COND TRUE main__i < 5UL [L34] EXPR main__max[main__i] VAL [\old(__return_136)=0, __return_136=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={5:0}, main__max[main__i]=55, main__min={6:0}, main__org={4:0}, main__slope={7:0}, main__t=51] [L34] COND TRUE main__t <= (main__max[main__i]) [L38] EXPR main__org[main__i] [L38] EXPR main__slope[main__i] [L38] EXPR main__min[main__i] [L38] EXPR main__max[main__i] [L38] EXPR main__min[main__i] [L38] main__z = (main__org[main__i]) + (((main__slope[main__i]) * (main__t - (main__min[main__i]))) / ((main__max[main__i]) - (main__min[main__i]))) [L39] int main____CPAchecker_TMP_1; VAL [\old(__return_136)=0, __return_136=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={5:0}, main__min={6:0}, main__org={4:0}, main__slope={7:0}, main__t=51] [L40] COND FALSE !(main__z >= -10.0) VAL [\old(__return_136)=0, __return_136=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={5:0}, main__min={6:0}, main__org={4:0}, main__slope={7:0}, main__t=51] [L66] main____CPAchecker_TMP_1 = 0 VAL [\old(__return_136)=0, __return_136=0, __return_main=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={5:0}, main__min={6:0}, main__org={4:0}, main__slope={7:0}, main__t=51] [L47] int __tmp_1; [L48] __tmp_1 = main____CPAchecker_TMP_1 [L49] int __VERIFIER_assert__cond; [L50] __VERIFIER_assert__cond = __tmp_1 VAL [\old(__return_136)=0, __return_136=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={5:0}, main__min={6:0}, main__org={4:0}, main__slope={7:0}, main__t=51] [L51] COND TRUE __VERIFIER_assert__cond == 0 VAL [\old(__return_136)=0, __return_136=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={5:0}, main__min={6:0}, main__org={4:0}, main__slope={7:0}, main__t=51] [L53] reach_error() VAL [\old(__return_136)=0, __return_136=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={5:0}, main__min={6:0}, main__org={4:0}, main__slope={7:0}, main__t=51] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 70 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 70 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 37 mSDtfsCounter, 92 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-01-31 16:44:25,099 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...