/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_NONE.epf -i ../../../trunk/examples/svcomp/loop-zilu/benchmark43_conjunctive.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 20:25:54,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 20:25:54,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 20:25:54,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 20:25:54,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 20:25:54,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 20:25:54,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 20:25:54,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 20:25:54,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 20:25:54,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 20:25:54,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 20:25:54,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 20:25:54,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 20:25:54,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 20:25:54,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 20:25:54,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 20:25:54,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 20:25:54,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 20:25:54,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 20:25:54,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 20:25:54,584 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 20:25:54,613 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 20:25:54,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 20:25:54,614 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 20:25:54,614 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 20:25:54,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 20:25:54,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 20:25:54,615 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 20:25:54,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 20:25:54,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 20:25:54,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 20:25:54,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 20:25:54,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 20:25:54,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 20:25:54,615 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 20:25:54,615 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 20:25:54,616 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 20:25:54,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 20:25:54,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 20:25:54,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 20:25:54,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 20:25:54,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 20:25:54,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:25:54,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 20:25:54,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 20:25:54,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 20:25:54,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 20:25:54,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 20:25:54,617 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 20:25:54,617 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 20:25:54,617 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 20:25:54,617 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 20:25:54,617 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 20:25:54,617 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 20:25:54,618 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 20:25:54,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 20:25:54,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 20:25:54,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 20:25:54,779 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 20:25:54,781 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 20:25:54,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-zilu/benchmark43_conjunctive.i [2022-01-10 20:25:54,827 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/255406053/77b4c36c90ba41338b5fbdb13f4c27d3/FLAG79fd3bd3d [2022-01-10 20:25:55,259 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 20:25:55,260 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark43_conjunctive.i [2022-01-10 20:25:55,267 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/255406053/77b4c36c90ba41338b5fbdb13f4c27d3/FLAG79fd3bd3d [2022-01-10 20:25:55,280 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/255406053/77b4c36c90ba41338b5fbdb13f4c27d3 [2022-01-10 20:25:55,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 20:25:55,284 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 20:25:55,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 20:25:55,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 20:25:55,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 20:25:55,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:25:55" (1/1) ... [2022-01-10 20:25:55,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@981b9df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:55, skipping insertion in model container [2022-01-10 20:25:55,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:25:55" (1/1) ... [2022-01-10 20:25:55,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 20:25:55,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 20:25:55,439 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark43_conjunctive.i[873,886] [2022-01-10 20:25:55,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:25:55,453 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 20:25:55,463 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark43_conjunctive.i[873,886] [2022-01-10 20:25:55,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:25:55,474 INFO L208 MainTranslator]: Completed translation [2022-01-10 20:25:55,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:55 WrapperNode [2022-01-10 20:25:55,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 20:25:55,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 20:25:55,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 20:25:55,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 20:25:55,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:55" (1/1) ... [2022-01-10 20:25:55,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:55" (1/1) ... [2022-01-10 20:25:55,497 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 28 [2022-01-10 20:25:55,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 20:25:55,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 20:25:55,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 20:25:55,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 20:25:55,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:55" (1/1) ... [2022-01-10 20:25:55,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:55" (1/1) ... [2022-01-10 20:25:55,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:55" (1/1) ... [2022-01-10 20:25:55,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:55" (1/1) ... [2022-01-10 20:25:55,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:55" (1/1) ... [2022-01-10 20:25:55,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:55" (1/1) ... [2022-01-10 20:25:55,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:55" (1/1) ... [2022-01-10 20:25:55,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 20:25:55,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 20:25:55,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 20:25:55,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 20:25:55,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:55" (1/1) ... [2022-01-10 20:25:55,526 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:25:55,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:25:55,542 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 20:25:55,543 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 20:25:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 20:25:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 20:25:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 20:25:55,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 20:25:55,599 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 20:25:55,600 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 20:25:55,672 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 20:25:55,676 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 20:25:55,676 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 20:25:55,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:25:55 BoogieIcfgContainer [2022-01-10 20:25:55,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 20:25:55,678 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 20:25:55,678 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 20:25:55,679 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 20:25:55,680 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:25:55" (1/1) ... [2022-01-10 20:25:55,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:25:55 BasicIcfg [2022-01-10 20:25:55,713 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 20:25:55,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 20:25:55,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 20:25:55,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 20:25:55,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:25:55" (1/4) ... [2022-01-10 20:25:55,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624f196f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:25:55, skipping insertion in model container [2022-01-10 20:25:55,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:55" (2/4) ... [2022-01-10 20:25:55,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624f196f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:25:55, skipping insertion in model container [2022-01-10 20:25:55,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:25:55" (3/4) ... [2022-01-10 20:25:55,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624f196f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:25:55, skipping insertion in model container [2022-01-10 20:25:55,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:25:55" (4/4) ... [2022-01-10 20:25:55,732 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark43_conjunctive.iTransformedIcfg [2022-01-10 20:25:55,736 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 20:25:55,736 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 20:25:55,790 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 20:25:55,795 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 20:25:55,795 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 20:25:55,816 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 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 20:25:55,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-10 20:25:55,819 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:25:55,819 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:25:55,820 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:25:55,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:25:55,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1973472424, now seen corresponding path program 1 times [2022-01-10 20:25:55,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:25:55,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316307378] [2022-01-10 20:25:55,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:25:55,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:25:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:25:55,978 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 20:25:55,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:25:55,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316307378] [2022-01-10 20:25:55,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316307378] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:25:55,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:25:55,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:25:55,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321765887] [2022-01-10 20:25:55,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:25:55,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 20:25:55,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:25:56,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 20:25:56,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 20:25:56,009 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 20:25:56,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:25:56,017 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2022-01-10 20:25:56,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 20:25:56,019 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-01-10 20:25:56,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:25:56,023 INFO L225 Difference]: With dead ends: 20 [2022-01-10 20:25:56,023 INFO L226 Difference]: Without dead ends: 8 [2022-01-10 20:25:56,027 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 20:25:56,034 INFO L933 BasicCegarLoop]: 13 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, 13 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 20:25:56,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:25:56,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-01-10 20:25:56,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-01-10 20:25:56,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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 20:25:56,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2022-01-10 20:25:56,055 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 7 [2022-01-10 20:25:56,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:25:56,055 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2022-01-10 20:25:56,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 20:25:56,057 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2022-01-10 20:25:56,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-10 20:25:56,057 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:25:56,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:25:56,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 20:25:56,058 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:25:56,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:25:56,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1973502215, now seen corresponding path program 1 times [2022-01-10 20:25:56,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:25:56,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731470282] [2022-01-10 20:25:56,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:25:56,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:25:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:25:56,147 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 20:25:56,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:25:56,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731470282] [2022-01-10 20:25:56,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731470282] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:25:56,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:25:56,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:25:56,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412969054] [2022-01-10 20:25:56,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:25:56,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:25:56,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:25:56,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:25:56,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:25:56,150 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 20:25:56,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:25:56,183 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-01-10 20:25:56,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:25:56,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-01-10 20:25:56,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:25:56,184 INFO L225 Difference]: With dead ends: 13 [2022-01-10 20:25:56,184 INFO L226 Difference]: Without dead ends: 9 [2022-01-10 20:25:56,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:25:56,185 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:25:56,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:25:56,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-01-10 20:25:56,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-01-10 20:25:56,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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 20:25:56,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-01-10 20:25:56,189 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2022-01-10 20:25:56,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:25:56,190 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-01-10 20:25:56,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 20:25:56,190 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-01-10 20:25:56,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-10 20:25:56,190 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:25:56,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:25:56,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 20:25:56,190 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:25:56,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:25:56,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1049859691, now seen corresponding path program 1 times [2022-01-10 20:25:56,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:25:56,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164816452] [2022-01-10 20:25:56,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:25:56,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:25:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:25:56,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:25:56,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:25:56,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164816452] [2022-01-10 20:25:56,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164816452] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 20:25:56,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822807517] [2022-01-10 20:25:56,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:25:56,569 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:25:56,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:25:56,588 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 20:25:56,623 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 20:25:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:25:56,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 17 conjunts are in the unsatisfiable core [2022-01-10 20:25:56,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:25:57,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:25:57,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 20:25:58,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:25:58,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822807517] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 20:25:58,237 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 20:25:58,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-01-10 20:25:58,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345026247] [2022-01-10 20:25:58,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 20:25:58,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 20:25:58,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:25:58,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 20:25:58,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-01-10 20:25:58,239 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 20:25:58,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:25:58,262 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-01-10 20:25:58,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 20:25:58,262 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 8 [2022-01-10 20:25:58,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:25:58,263 INFO L225 Difference]: With dead ends: 14 [2022-01-10 20:25:58,263 INFO L226 Difference]: Without dead ends: 10 [2022-01-10 20:25:58,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-01-10 20:25:58,264 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:25:58,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2022-01-10 20:25:58,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-01-10 20:25:58,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-01-10 20:25:58,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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 20:25:58,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-01-10 20:25:58,266 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2022-01-10 20:25:58,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:25:58,266 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-01-10 20:25:58,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 20:25:58,267 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-01-10 20:25:58,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 20:25:58,267 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:25:58,267 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:25:58,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-10 20:25:58,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:25:58,471 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:25:58,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:25:58,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1813254777, now seen corresponding path program 2 times [2022-01-10 20:25:58,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:25:58,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108087854] [2022-01-10 20:25:58,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:25:58,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:25:58,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:25:58,606 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:25:58,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:25:58,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108087854] [2022-01-10 20:25:58,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108087854] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 20:25:58,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006790343] [2022-01-10 20:25:58,609 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 20:25:58,609 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:25:58,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:25:58,610 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) [2022-01-10 20:25:58,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 20:25:58,701 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-10 20:25:58,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 20:25:58,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-10 20:25:58,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:26:00,408 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:26:00,409 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 20:26:00,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006790343] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:26:00,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-10 20:26:00,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-01-10 20:26:00,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375752512] [2022-01-10 20:26:00,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:26:00,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 20:26:00,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:26:00,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 20:26:00,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-10 20:26:00,410 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 20:26:00,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:26:00,487 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2022-01-10 20:26:00,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 20:26:00,487 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 9 [2022-01-10 20:26:00,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:26:00,487 INFO L225 Difference]: With dead ends: 10 [2022-01-10 20:26:00,487 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 20:26:00,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-01-10 20:26:00,488 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:26:00,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 8 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:26:00,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 20:26:00,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 20:26:00,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:26:00,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 20:26:00,489 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2022-01-10 20:26:00,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:26:00,489 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 20:26:00,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 20:26:00,490 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 20:26:00,490 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 20:26:00,491 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 20:26:00,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-10 20:26:00,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-01-10 20:26:00,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 20:26:00,813 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 20:26:00,813 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 20:26:00,813 INFO L858 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2022-01-10 20:26:00,814 INFO L861 garLoopResultBuilder]: At program point L28(lines 19 29) the Hoare annotation is: true [2022-01-10 20:26:00,814 INFO L854 garLoopResultBuilder]: At program point L23-2(lines 23 26) the Hoare annotation is: (or (and (let ((.cse0 (* (- 1) |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|))) (< (div (+ .cse0 100) (- 4294967296)) (+ (div (+ (- 1) |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) 2147483648) (div (+ .cse0 4294967296) 4294967296) 1))) (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (< |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 4294967296) (< (div (+ (* (- 2) (mod (+ 2147483647 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) 2147483648)) 98 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (- 4294967296)) (+ (div (+ (* (- 1) |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) 4294967296) 4294967296) 1)) (< |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 4294967296) (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|)) (and (<= |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| (+ (* (div |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 2147483648) 4294967296) 99)) (<= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 4294967295) (<= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| (+ (* (div |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 2147483648) 4294967296) 99)) (<= |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 4294967295))) [2022-01-10 20:26:00,814 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 20:26:00,814 INFO L858 garLoopResultBuilder]: For program point L23-3(lines 23 26) no Hoare annotation was computed. [2022-01-10 20:26:00,814 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 20:26:00,814 INFO L858 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2022-01-10 20:26:00,814 INFO L858 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2022-01-10 20:26:00,814 INFO L858 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2022-01-10 20:26:00,814 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2022-01-10 20:26:00,816 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-01-10 20:26:00,817 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 20:26:00,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:26:00 BasicIcfg [2022-01-10 20:26:00,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 20:26:00,836 INFO L158 Benchmark]: Toolchain (without parser) took 5552.44ms. Allocated memory was 197.1MB in the beginning and 237.0MB in the end (delta: 39.8MB). Free memory was 146.7MB in the beginning and 113.7MB in the end (delta: 33.0MB). Peak memory consumption was 73.8MB. Max. memory is 8.0GB. [2022-01-10 20:26:00,836 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 197.1MB. Free memory was 163.0MB in the beginning and 162.9MB in the end (delta: 78.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 20:26:00,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.88ms. Allocated memory is still 197.1MB. Free memory was 146.5MB in the beginning and 171.8MB in the end (delta: -25.4MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. [2022-01-10 20:26:00,837 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.09ms. Allocated memory is still 197.1MB. Free memory was 171.8MB in the beginning and 170.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 20:26:00,837 INFO L158 Benchmark]: Boogie Preprocessor took 11.78ms. Allocated memory is still 197.1MB. Free memory was 170.2MB in the beginning and 169.4MB in the end (delta: 803.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 20:26:00,837 INFO L158 Benchmark]: RCFGBuilder took 167.72ms. Allocated memory is still 197.1MB. Free memory was 169.2MB in the beginning and 160.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-01-10 20:26:00,837 INFO L158 Benchmark]: IcfgTransformer took 35.11ms. Allocated memory is still 197.1MB. Free memory was 160.8MB in the beginning and 157.9MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 20:26:00,838 INFO L158 Benchmark]: TraceAbstraction took 5122.16ms. Allocated memory was 197.1MB in the beginning and 237.0MB in the end (delta: 39.8MB). Free memory was 157.4MB in the beginning and 113.7MB in the end (delta: 43.7MB). Peak memory consumption was 84.3MB. Max. memory is 8.0GB. [2022-01-10 20:26:00,839 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 197.1MB. Free memory was 163.0MB in the beginning and 162.9MB in the end (delta: 78.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 188.88ms. Allocated memory is still 197.1MB. Free memory was 146.5MB in the beginning and 171.8MB in the end (delta: -25.4MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.09ms. Allocated memory is still 197.1MB. Free memory was 171.8MB in the beginning and 170.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.78ms. Allocated memory is still 197.1MB. Free memory was 170.2MB in the beginning and 169.4MB in the end (delta: 803.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 167.72ms. Allocated memory is still 197.1MB. Free memory was 169.2MB in the beginning and 160.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * IcfgTransformer took 35.11ms. Allocated memory is still 197.1MB. Free memory was 160.8MB in the beginning and 157.9MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 5122.16ms. Allocated memory was 197.1MB in the beginning and 237.0MB in the end (delta: 39.8MB). Free memory was 157.4MB in the beginning and 113.7MB in the end (delta: 43.7MB). Peak memory consumption was 84.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 4 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 28 mSDtfsCounter, 25 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 84 HoareAnnotationTreeSize, 2 FomulaSimplifications, 26 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 111 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 49 ConstructedInterpolants, 2 QuantifiedInterpolants, 712 SizeOfPredicates, 8 NumberOfNonLiveVariables, 166 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 5/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((((~bvslt32((if !(0bv65 == ~bvurem65(~bvadd16(~sign_extendFrom8To32(~bvmul64(18446744073709551615bv64, ~zero_extendFrom32To64(y))), 100bv65), 36893488143124135936bv65)) then (if 1bv1 == ~bvadd16(~sign_extendFrom8To32(~bvmul64(18446744073709551615bv64, ~zero_extendFrom32To64(y))), 100bv65)[64:64] then ~bvadd16(1bv65, ~bvsdiv65(~bvadd16(~sign_extendFrom8To32(~bvmul64(18446744073709551615bv64, ~zero_extendFrom32To64(y))), 100bv65), 36893488143124135936bv65)) else ~bvsdiv65(~bvadd16(~sign_extendFrom8To32(~bvmul64(18446744073709551615bv64, ~zero_extendFrom32To64(y))), 100bv65), 36893488143124135936bv65)) else ~bvsdiv65(~bvadd16(~sign_extendFrom8To32(~bvmul64(18446744073709551615bv64, ~zero_extendFrom32To64(y))), 100bv65), 36893488143124135936bv65)), ~sign_extendFrom8To32(~bvadd16(~bvadd16(~sign_extendFrom8To32(~bvadd16(8589934591bv33, ~zero_extendFrom32To33(y))[32:31]), ~sign_extendFrom8To32(~bvadd16(~sign_extendFrom8To32(~bvmul64(18446744073709551615bv64, ~zero_extendFrom32To64(y))), 4294967296bv65)[64:32])), 1bv34))) && ~bvult64(~zero_extendFrom32To33(y), 4294967296bv33)) && ~bvule32(0bv32, x)) && ~bvult64(~zero_extendFrom32To33(x), 4294967296bv33)) && ~bvslt32((if !(0bv63 == ~bvurem63(~bvadd16(~bvadd16(~sign_extendFrom8To32(~bvmul64(4611686018427387902bv62, ~zero_extendFrom31To62(~bvadd16(2147483647bv33, ~zero_extendFrom32To33(x))[30:0]))), 98bv63), ~zero_extendFrom32To63(x)), 9223372032559808512bv63)) then (if 1bv1 == ~bvadd16(~bvadd16(~sign_extendFrom8To32(~bvmul64(4611686018427387902bv62, ~zero_extendFrom31To62(~bvadd16(2147483647bv33, ~zero_extendFrom32To33(x))[30:0]))), 98bv63), ~zero_extendFrom32To63(x))[62:62] then ~bvadd16(~bvsdiv63(~bvadd16(~bvadd16(~sign_extendFrom8To32(~bvmul64(4611686018427387902bv62, ~zero_extendFrom31To62(~bvadd16(2147483647bv33, ~zero_extendFrom32To33(x))[30:0]))), 98bv63), ~zero_extendFrom32To63(x)), 9223372032559808512bv63), 1bv63) else ~bvsdiv63(~bvadd16(~bvadd16(~sign_extendFrom8To32(~bvmul64(4611686018427387902bv62, ~zero_extendFrom31To62(~bvadd16(2147483647bv33, ~zero_extendFrom32To33(x))[30:0]))), 98bv63), ~zero_extendFrom32To63(x)), 9223372032559808512bv63)) else ~bvsdiv63(~bvadd16(~bvadd16(~sign_extendFrom8To32(~bvmul64(4611686018427387902bv62, ~zero_extendFrom31To62(~bvadd16(2147483647bv33, ~zero_extendFrom32To33(x))[30:0]))), 98bv63), ~zero_extendFrom32To63(x)), 9223372032559808512bv63)), ~sign_extendFrom8To32(~bvadd16(~sign_extendFrom8To32(~bvadd16(~sign_extendFrom8To32(~bvmul64(~zero_extendFrom32To64(x), 18446744073709551615bv64)), 4294967296bv65)[64:32]), 1bv34)))) && ~bvule32(0bv32, y)) || (((~bvule32(y, 4294967295bv32) && ~bvule34(~zero_extendFrom32To34(y), ~bvadd16(~zero_extendFrom33To34(y[31:31] ++ 0bv32), 99bv34))) && ~bvule32(x, 4294967295bv32)) && ~bvule34(~zero_extendFrom32To34(x), ~bvadd16(~zero_extendFrom33To34(x[31:31] ++ 0bv32), 99bv34))) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-01-10 20:26:00,863 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...