/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/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/nla-digbench/geo1-u.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 09:10:03,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 09:10:03,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 09:10:03,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 09:10:03,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 09:10:03,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 09:10:03,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 09:10:03,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 09:10:03,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 09:10:03,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 09:10:03,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 09:10:03,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 09:10:03,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 09:10:03,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 09:10:03,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 09:10:03,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 09:10:03,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 09:10:03,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 09:10:03,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 09:10:03,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 09:10:03,361 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 09:10:03,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 09:10:03,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 09:10:03,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 09:10:03,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 09:10:03,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-20 09:10:03,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 09:10:03,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 09:10:03,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 09:10:03,377 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-20 09:10:03,404 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 09:10:03,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 09:10:03,407 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 09:10:03,407 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 09:10:03,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 09:10:03,408 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 09:10:03,408 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 09:10:03,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 09:10:03,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 09:10:03,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 09:10:03,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 09:10:03,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 09:10:03,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 09:10:03,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 09:10:03,409 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 09:10:03,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 09:10:03,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 09:10:03,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 09:10:03,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 09:10:03,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 09:10:03,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 09:10:03,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 09:10:03,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 09:10:03,410 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 09:10:03,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 09:10:03,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 09:10:03,411 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-20 09:10:03,411 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-20 09:10:03,412 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 09:10:03,412 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 09:10:03,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 09:10:03,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 09:10:03,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 09:10:03,643 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 09:10:03,644 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 09:10:03,644 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/geo1-u.c [2022-03-20 09:10:03,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b65ac658/53547cbc231241d59682d16cf8fd68ce/FLAG79c6b2a35 [2022-03-20 09:10:03,994 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 09:10:03,994 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/geo1-u.c [2022-03-20 09:10:03,999 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b65ac658/53547cbc231241d59682d16cf8fd68ce/FLAG79c6b2a35 [2022-03-20 09:10:04,428 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b65ac658/53547cbc231241d59682d16cf8fd68ce [2022-03-20 09:10:04,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 09:10:04,432 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 09:10:04,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 09:10:04,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 09:10:04,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 09:10:04,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 09:10:04" (1/1) ... [2022-03-20 09:10:04,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64ab2276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 09:10:04, skipping insertion in model container [2022-03-20 09:10:04,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 09:10:04" (1/1) ... [2022-03-20 09:10:04,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 09:10:04,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 09:10:04,559 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/geo1-u.c[555,568] [2022-03-20 09:10:04,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 09:10:04,584 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 09:10:04,600 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/geo1-u.c[555,568] [2022-03-20 09:10:04,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 09:10:04,614 INFO L208 MainTranslator]: Completed translation [2022-03-20 09:10:04,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 09:10:04 WrapperNode [2022-03-20 09:10:04,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 09:10:04,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 09:10:04,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 09:10:04,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 09:10:04,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 09:10:04" (1/1) ... [2022-03-20 09:10:04,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 09:10:04" (1/1) ... [2022-03-20 09:10:04,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 09:10:04" (1/1) ... [2022-03-20 09:10:04,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 09:10:04" (1/1) ... [2022-03-20 09:10:04,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 09:10:04" (1/1) ... [2022-03-20 09:10:04,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 09:10:04" (1/1) ... [2022-03-20 09:10:04,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 09:10:04" (1/1) ... [2022-03-20 09:10:04,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 09:10:04,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 09:10:04,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 09:10:04,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 09:10:04,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 09:10:04" (1/1) ... [2022-03-20 09:10:04,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 09:10:04,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 09:10:04,678 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) [2022-03-20 09:10:04,691 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 [2022-03-20 09:10:04,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 09:10:04,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 09:10:04,709 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 09:10:04,709 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-20 09:10:04,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-20 09:10:04,709 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 09:10:04,709 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 09:10:04,709 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 09:10:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 09:10:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 09:10:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-03-20 09:10:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-20 09:10:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 09:10:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 09:10:04,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 09:10:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 09:10:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 09:10:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 09:10:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 09:10:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 09:10:04,766 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 09:10:04,767 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 09:10:04,884 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 09:10:04,889 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 09:10:04,890 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 09:10:04,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 09:10:04 BoogieIcfgContainer [2022-03-20 09:10:04,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 09:10:04,892 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 09:10:04,892 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 09:10:04,893 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 09:10:04,895 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 09:10:04" (1/1) ... [2022-03-20 09:10:04,897 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-03-20 09:10:04,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 09:10:04 BasicIcfg [2022-03-20 09:10:04,909 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 09:10:04,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 09:10:04,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 09:10:04,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 09:10:04,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 09:10:04" (1/4) ... [2022-03-20 09:10:04,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6520743c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 09:10:04, skipping insertion in model container [2022-03-20 09:10:04,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 09:10:04" (2/4) ... [2022-03-20 09:10:04,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6520743c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 09:10:04, skipping insertion in model container [2022-03-20 09:10:04,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 09:10:04" (3/4) ... [2022-03-20 09:10:04,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6520743c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 09:10:04, skipping insertion in model container [2022-03-20 09:10:04,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 09:10:04" (4/4) ... [2022-03-20 09:10:04,915 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u.cqvasr [2022-03-20 09:10:04,919 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 09:10:04,919 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 09:10:04,953 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 09:10:04,959 INFO L340 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=FINITE_AUTOMATA, 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 [2022-03-20 09:10:04,959 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 09:10:04,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-03-20 09:10:04,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-20 09:10:04,976 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 09:10:04,976 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 09:10:04,977 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 09:10:04,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 09:10:04,981 INFO L85 PathProgramCache]: Analyzing trace with hash -628176271, now seen corresponding path program 1 times [2022-03-20 09:10:04,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 09:10:04,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397936074] [2022-03-20 09:10:04,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 09:10:04,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 09:10:05,064 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-03-20 09:10:05,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [866349841] [2022-03-20 09:10:05,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 09:10:05,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 09:10:05,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 09:10:05,071 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) [2022-03-20 09:10:05,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 09:10:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 09:10:05,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-20 09:10:05,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 09:10:05,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 09:10:05,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 09:10:05,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 09:10:05,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397936074] [2022-03-20 09:10:05,341 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-03-20 09:10:05,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866349841] [2022-03-20 09:10:05,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866349841] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 09:10:05,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 09:10:05,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 09:10:05,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344208791] [2022-03-20 09:10:05,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 09:10:05,350 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 09:10:05,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 09:10:05,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 09:10:05,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 09:10:05,385 INFO L87 Difference]: Start difference. First operand has 22 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 09:10:05,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 09:10:05,469 INFO L93 Difference]: Finished difference Result 46 states and 61 transitions. [2022-03-20 09:10:05,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 09:10:05,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-03-20 09:10:05,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 09:10:05,483 INFO L225 Difference]: With dead ends: 46 [2022-03-20 09:10:05,483 INFO L226 Difference]: Without dead ends: 25 [2022-03-20 09:10:05,485 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 09:10:05,490 INFO L913 BasicCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 09:10:05,491 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 73 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 09:10:05,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-03-20 09:10:05,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2022-03-20 09:10:05,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 16 states have internal predecessors, (16), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 09:10:05,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2022-03-20 09:10:05,520 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 11 [2022-03-20 09:10:05,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 09:10:05,520 INFO L478 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2022-03-20 09:10:05,521 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 09:10:05,522 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-03-20 09:10:05,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-03-20 09:10:05,523 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 09:10:05,523 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 09:10:05,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-20 09:10:05,739 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-20 09:10:05,740 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 09:10:05,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 09:10:05,741 INFO L85 PathProgramCache]: Analyzing trace with hash -337724478, now seen corresponding path program 1 times [2022-03-20 09:10:05,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 09:10:05,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089978621] [2022-03-20 09:10:05,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 09:10:05,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 09:10:05,753 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-03-20 09:10:05,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1422606449] [2022-03-20 09:10:05,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 09:10:05,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 09:10:05,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 09:10:05,762 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 09:10:05,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 09:10:05,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-20 09:10:05,812 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-20 09:10:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-20 09:10:05,834 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-20 09:10:05,835 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-03-20 09:10:05,836 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-20 09:10:05,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-20 09:10:06,051 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-03-20 09:10:06,054 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-20 09:10:06,058 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-20 09:10:06,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 09:10:06 BasicIcfg [2022-03-20 09:10:06,075 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-20 09:10:06,076 INFO L158 Benchmark]: Toolchain (without parser) took 1643.91ms. Allocated memory was 203.4MB in the beginning and 264.2MB in the end (delta: 60.8MB). Free memory was 147.6MB in the beginning and 190.1MB in the end (delta: -42.5MB). Peak memory consumption was 18.1MB. Max. memory is 8.0GB. [2022-03-20 09:10:06,076 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 203.4MB. Free memory is still 163.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 09:10:06,077 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.53ms. Allocated memory was 203.4MB in the beginning and 264.2MB in the end (delta: 60.8MB). Free memory was 147.5MB in the beginning and 237.3MB in the end (delta: -89.8MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB. [2022-03-20 09:10:06,080 INFO L158 Benchmark]: Boogie Preprocessor took 31.95ms. Allocated memory is still 264.2MB. Free memory was 237.3MB in the beginning and 235.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-20 09:10:06,081 INFO L158 Benchmark]: RCFGBuilder took 243.40ms. Allocated memory is still 264.2MB. Free memory was 235.6MB in the beginning and 225.7MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-20 09:10:06,082 INFO L158 Benchmark]: IcfgTransformer took 16.93ms. Allocated memory is still 264.2MB. Free memory was 225.7MB in the beginning and 224.7MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-20 09:10:06,084 INFO L158 Benchmark]: TraceAbstraction took 1164.98ms. Allocated memory is still 264.2MB. Free memory was 224.1MB in the beginning and 190.1MB in the end (delta: 34.0MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2022-03-20 09:10:06,085 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 203.4MB. Free memory is still 163.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 181.53ms. Allocated memory was 203.4MB in the beginning and 264.2MB in the end (delta: 60.8MB). Free memory was 147.5MB in the beginning and 237.3MB in the end (delta: -89.8MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.95ms. Allocated memory is still 264.2MB. Free memory was 237.3MB in the beginning and 235.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 243.40ms. Allocated memory is still 264.2MB. Free memory was 235.6MB in the beginning and 225.7MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 16.93ms. Allocated memory is still 264.2MB. Free memory was 225.7MB in the beginning and 224.7MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 1164.98ms. Allocated memory is still 264.2MB. Free memory was 224.1MB in the beginning and 190.1MB in the end (delta: 34.0MB). Peak memory consumption was 33.6MB. 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 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] unsigned int z, k; [L24] long long x, y, c; [L25] z = __VERIFIER_nondet_uint() [L26] k = __VERIFIER_nondet_uint() [L28] x = 1 [L29] y = z [L30] c = 1 VAL [c=1, k=0, x=1, y=0, z=0] [L32] COND TRUE 1 VAL [c=1, k=0, x=1, y=0, z=0] [L33] CALL __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [\old(cond)=1] [L16] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L33] RET __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [c=1, k=0, x=1, y=0, z=0] [L35] COND TRUE !(c < k) VAL [c=1, k=0, x=1, y=0, z=0] [L44] x = x * (z - 1) VAL [c=1, k=0, x=4294967295, y=0, z=0] [L46] CALL __VERIFIER_assert(1 + x - y == 0) VAL [\old(cond)=0] [L16] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L18] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 73 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 19 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=1, InterpolantAutomatonStates: 5, 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 1 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 7 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 proved your program to be incorrect! [2022-03-20 09:10:06,115 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...