/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/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/freire2_unwindbound20.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 09:03:33,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 09:03:33,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 09:03:33,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 09:03:33,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 09:03:33,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 09:03:33,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 09:03:33,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 09:03:33,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 09:03:33,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 09:03:33,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 09:03:33,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 09:03:33,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 09:03:33,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 09:03:33,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 09:03:33,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 09:03:33,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 09:03:33,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 09:03:33,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 09:03:33,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 09:03:33,613 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 09:03:33,648 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 09:03:33,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 09:03:33,649 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 09:03:33,649 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 09:03:33,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 09:03:33,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 09:03:33,651 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 09:03:33,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 09:03:33,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 09:03:33,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 09:03:33,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 09:03:33,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 09:03:33,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 09:03:33,652 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 09:03:33,652 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 09:03:33,652 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 09:03:33,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 09:03:33,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 09:03:33,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 09:03:33,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 09:03:33,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 09:03:33,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 09:03:33,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 09:03:33,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 09:03:33,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 09:03:33,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 09:03:33,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 09:03:33,655 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 09:03:33,655 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 09:03:33,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 09:03:33,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 09:03:33,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 09:03:33,656 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 09:03:33,656 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 09:03:33,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 09:03:33,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 09:03:33,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 09:03:33,879 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 09:03:33,881 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 09:03:33,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/freire2_unwindbound20.c [2022-01-10 09:03:33,933 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6ab5879c/f74e28f38ff64f80a0ecb4b1ba56d795/FLAGfba303b14 [2022-01-10 09:03:34,380 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 09:03:34,380 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire2_unwindbound20.c [2022-01-10 09:03:34,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6ab5879c/f74e28f38ff64f80a0ecb4b1ba56d795/FLAGfba303b14 [2022-01-10 09:03:34,410 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6ab5879c/f74e28f38ff64f80a0ecb4b1ba56d795 [2022-01-10 09:03:34,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 09:03:34,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 09:03:34,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 09:03:34,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 09:03:34,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 09:03:34,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:03:34" (1/1) ... [2022-01-10 09:03:34,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52b979e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:03:34, skipping insertion in model container [2022-01-10 09:03:34,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:03:34" (1/1) ... [2022-01-10 09:03:34,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 09:03:34,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 09:03:34,615 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire2_unwindbound20.c[709,722] [2022-01-10 09:03:34,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 09:03:34,660 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 09:03:34,677 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire2_unwindbound20.c[709,722] [2022-01-10 09:03:34,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 09:03:34,713 INFO L208 MainTranslator]: Completed translation [2022-01-10 09:03:34,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:03:34 WrapperNode [2022-01-10 09:03:34,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 09:03:34,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 09:03:34,714 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 09:03:34,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 09:03:34,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:03:34" (1/1) ... [2022-01-10 09:03:34,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:03:34" (1/1) ... [2022-01-10 09:03:34,761 INFO L137 Inliner]: procedures = 15, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 72 [2022-01-10 09:03:34,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 09:03:34,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 09:03:34,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 09:03:34,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 09:03:34,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:03:34" (1/1) ... [2022-01-10 09:03:34,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:03:34" (1/1) ... [2022-01-10 09:03:34,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:03:34" (1/1) ... [2022-01-10 09:03:34,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:03:34" (1/1) ... [2022-01-10 09:03:34,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:03:34" (1/1) ... [2022-01-10 09:03:34,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:03:34" (1/1) ... [2022-01-10 09:03:34,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:03:34" (1/1) ... [2022-01-10 09:03:34,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 09:03:34,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 09:03:34,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 09:03:34,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 09:03:34,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:03:34" (1/1) ... [2022-01-10 09:03:34,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 09:03:34,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:03:34,832 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) [2022-01-10 09:03:34,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 09:03:34,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 09:03:34,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 09:03:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 09:03:34,863 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 [2022-01-10 09:03:34,942 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 09:03:34,944 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 09:03:35,189 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 09:03:35,194 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 09:03:35,195 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 09:03:35,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:03:35 BoogieIcfgContainer [2022-01-10 09:03:35,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 09:03:35,197 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 09:03:35,197 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 09:03:35,198 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 09:03:35,201 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:03:35" (1/1) ... [2022-01-10 09:03:35,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:03:35 BasicIcfg [2022-01-10 09:03:35,253 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 09:03:35,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 09:03:35,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 09:03:35,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 09:03:35,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 09:03:34" (1/4) ... [2022-01-10 09:03:35,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@255b141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:03:35, skipping insertion in model container [2022-01-10 09:03:35,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:03:34" (2/4) ... [2022-01-10 09:03:35,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@255b141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:03:35, skipping insertion in model container [2022-01-10 09:03:35,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:03:35" (3/4) ... [2022-01-10 09:03:35,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@255b141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:03:35, skipping insertion in model container [2022-01-10 09:03:35,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:03:35" (4/4) ... [2022-01-10 09:03:35,260 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_unwindbound20.cTransformedIcfg [2022-01-10 09:03:35,264 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 09:03:35,264 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 09:03:35,303 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 09:03:35,309 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 [2022-01-10 09:03:35,309 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 09:03:35,322 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 32 states have internal predecessors, (41), 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) [2022-01-10 09:03:35,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 09:03:35,326 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:03:35,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 09:03:35,327 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 09:03:35,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:03:35,336 INFO L85 PathProgramCache]: Analyzing trace with hash -714381944, now seen corresponding path program 1 times [2022-01-10 09:03:35,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:03:35,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15545296] [2022-01-10 09:03:35,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:03:35,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:03:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:03:35,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 09:03:35,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:03:35,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15545296] [2022-01-10 09:03:35,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15545296] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 09:03:35,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 09:03:35,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 09:03:35,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700319172] [2022-01-10 09:03:35,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 09:03:35,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 09:03:35,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:03:35,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 09:03:35,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 09:03:35,552 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 32 states have internal predecessors, (41), 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-01-10 09:03:35,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:03:35,572 INFO L93 Difference]: Finished difference Result 64 states and 80 transitions. [2022-01-10 09:03:35,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 09:03:35,574 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) Word has length 6 [2022-01-10 09:03:35,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:03:35,581 INFO L225 Difference]: With dead ends: 64 [2022-01-10 09:03:35,581 INFO L226 Difference]: Without dead ends: 29 [2022-01-10 09:03:35,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 09:03:35,588 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 09:03:35,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 09:03:35,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-01-10 09:03:35,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-01-10 09:03:35,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 28 states have internal predecessors, (30), 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) [2022-01-10 09:03:35,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-01-10 09:03:35,627 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 6 [2022-01-10 09:03:35,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:03:35,628 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-01-10 09:03:35,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-01-10 09:03:35,630 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-01-10 09:03:35,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 09:03:35,631 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:03:35,631 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 09:03:35,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 09:03:35,632 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 09:03:35,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:03:35,636 INFO L85 PathProgramCache]: Analyzing trace with hash -714350166, now seen corresponding path program 1 times [2022-01-10 09:03:35,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:03:35,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233149523] [2022-01-10 09:03:35,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:03:35,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:03:35,672 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 09:03:35,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2133336823] [2022-01-10 09:03:35,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:03:35,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:03:35,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:03:35,678 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) [2022-01-10 09:03:35,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 09:03:35,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 09:03:35,740 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 09:03:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 09:03:35,765 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 09:03:35,766 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 09:03:35,772 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-01-10 09:03:35,774 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-01-10 09:03:35,774 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2022-01-10 09:03:35,774 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-01-10 09:03:35,775 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-01-10 09:03:35,775 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-01-10 09:03:35,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 09:03:36,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:03:36,004 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-10 09:03:36,006 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 09:03:36,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:03:36 BasicIcfg [2022-01-10 09:03:36,038 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 09:03:36,043 INFO L158 Benchmark]: Toolchain (without parser) took 1622.65ms. Allocated memory was 178.3MB in the beginning and 263.2MB in the end (delta: 84.9MB). Free memory was 123.9MB in the beginning and 186.9MB in the end (delta: -63.0MB). Peak memory consumption was 21.6MB. Max. memory is 8.0GB. [2022-01-10 09:03:36,043 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 178.3MB. Free memory is still 140.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 09:03:36,045 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.58ms. Allocated memory was 178.3MB in the beginning and 263.2MB in the end (delta: 84.9MB). Free memory was 123.6MB in the beginning and 235.1MB in the end (delta: -111.5MB). Peak memory consumption was 10.2MB. Max. memory is 8.0GB. [2022-01-10 09:03:36,045 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.05ms. Allocated memory is still 263.2MB. Free memory was 235.1MB in the beginning and 233.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 09:03:36,045 INFO L158 Benchmark]: Boogie Preprocessor took 39.21ms. Allocated memory is still 263.2MB. Free memory was 233.0MB in the beginning and 231.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 09:03:36,046 INFO L158 Benchmark]: RCFGBuilder took 394.72ms. Allocated memory is still 263.2MB. Free memory was 231.4MB in the beginning and 219.4MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-10 09:03:36,048 INFO L158 Benchmark]: IcfgTransformer took 56.42ms. Allocated memory is still 263.2MB. Free memory was 219.4MB in the beginning and 216.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 09:03:36,052 INFO L158 Benchmark]: TraceAbstraction took 783.28ms. Allocated memory is still 263.2MB. Free memory was 215.7MB in the beginning and 186.9MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2022-01-10 09:03:36,056 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 178.3MB. Free memory is still 140.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 294.58ms. Allocated memory was 178.3MB in the beginning and 263.2MB in the end (delta: 84.9MB). Free memory was 123.6MB in the beginning and 235.1MB in the end (delta: -111.5MB). Peak memory consumption was 10.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.05ms. Allocated memory is still 263.2MB. Free memory was 235.1MB in the beginning and 233.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.21ms. Allocated memory is still 263.2MB. Free memory was 233.0MB in the beginning and 231.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 394.72ms. Allocated memory is still 263.2MB. Free memory was 231.4MB in the beginning and 219.4MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * IcfgTransformer took 56.42ms. Allocated memory is still 263.2MB. Free memory was 219.4MB in the beginning and 216.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 783.28ms. Allocated memory is still 263.2MB. Free memory was 215.7MB in the beginning and 186.9MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. 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 - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of floatingLiteral_3.25_DOUBLE at line 30, overapproximation of fp.to_sbv at line 34. Possible FailurePath: [L24] int counter = 0; VAL [counter=0] [L26] int r; [L27] double a, x, s; [L28] a = __VERIFIER_nondet_double() [L29] x = a [L30] s = 3.25 [L31] r = 1 VAL [counter=0, r=1] [L33] EXPR counter++ VAL [counter=1, counter++=0, r=1] [L33] COND TRUE counter++<20 [L34] CALL __VERIFIER_assert((int)(4*s) - 12*r*r == 1) [L17] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, counter=1] - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 34 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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 [2022-01-10 09:03:36,102 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...