/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/loop-acceleration/diamond_2-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 08:32:45,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 08:32:45,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 08:32:46,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 08:32:46,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 08:32:46,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 08:32:46,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 08:32:46,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 08:32:46,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 08:32:46,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 08:32:46,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 08:32:46,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 08:32:46,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 08:32:46,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 08:32:46,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 08:32:46,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 08:32:46,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 08:32:46,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 08:32:46,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 08:32:46,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 08:32:46,098 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 08:32:46,113 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 08:32:46,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 08:32:46,114 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 08:32:46,114 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 08:32:46,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 08:32:46,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 08:32:46,115 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 08:32:46,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 08:32:46,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 08:32:46,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 08:32:46,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 08:32:46,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 08:32:46,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 08:32:46,115 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 08:32:46,115 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 08:32:46,116 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 08:32:46,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 08:32:46,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 08:32:46,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 08:32:46,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 08:32:46,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 08:32:46,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 08:32:46,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 08:32:46,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 08:32:46,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 08:32:46,117 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 08:32:46,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 08:32:46,117 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 08:32:46,117 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 08:32:46,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 08:32:46,117 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 08:32:46,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 08:32:46,118 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 08:32:46,118 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 08:32:46,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 08:32:46,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 08:32:46,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 08:32:46,333 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 08:32:46,333 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 08:32:46,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/diamond_2-2.c [2022-01-10 08:32:46,385 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4fe326d/f1789cb1f5a142cc82b3e2e9f40fd766/FLAGcf7a07b9b [2022-01-10 08:32:46,801 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 08:32:46,801 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/diamond_2-2.c [2022-01-10 08:32:46,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4fe326d/f1789cb1f5a142cc82b3e2e9f40fd766/FLAGcf7a07b9b [2022-01-10 08:32:46,818 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4fe326d/f1789cb1f5a142cc82b3e2e9f40fd766 [2022-01-10 08:32:46,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 08:32:46,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 08:32:46,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 08:32:46,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 08:32:46,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 08:32:46,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:32:46" (1/1) ... [2022-01-10 08:32:46,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@421aa732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:32:46, skipping insertion in model container [2022-01-10 08:32:46,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:32:46" (1/1) ... [2022-01-10 08:32:46,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 08:32:46,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 08:32:46,992 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-acceleration/diamond_2-2.c[373,386] [2022-01-10 08:32:47,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 08:32:47,016 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 08:32:47,025 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-acceleration/diamond_2-2.c[373,386] [2022-01-10 08:32:47,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 08:32:47,051 INFO L208 MainTranslator]: Completed translation [2022-01-10 08:32:47,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:32:47 WrapperNode [2022-01-10 08:32:47,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 08:32:47,052 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 08:32:47,052 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 08:32:47,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 08:32:47,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:32:47" (1/1) ... [2022-01-10 08:32:47,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:32:47" (1/1) ... [2022-01-10 08:32:47,076 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2022-01-10 08:32:47,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 08:32:47,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 08:32:47,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 08:32:47,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 08:32:47,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:32:47" (1/1) ... [2022-01-10 08:32:47,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:32:47" (1/1) ... [2022-01-10 08:32:47,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:32:47" (1/1) ... [2022-01-10 08:32:47,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:32:47" (1/1) ... [2022-01-10 08:32:47,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:32:47" (1/1) ... [2022-01-10 08:32:47,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:32:47" (1/1) ... [2022-01-10 08:32:47,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:32:47" (1/1) ... [2022-01-10 08:32:47,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 08:32:47,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 08:32:47,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 08:32:47,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 08:32:47,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:32:47" (1/1) ... [2022-01-10 08:32:47,114 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 08:32:47,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 08:32:47,142 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 08:32:47,184 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 08:32:47,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 08:32:47,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 08:32:47,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 08:32:47,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 08:32:47,240 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 08:32:47,241 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 08:32:47,339 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 08:32:47,343 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 08:32:47,343 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 08:32:47,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:32:47 BoogieIcfgContainer [2022-01-10 08:32:47,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 08:32:47,344 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 08:32:47,344 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 08:32:47,345 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 08:32:47,347 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:32:47" (1/1) ... [2022-01-10 08:32:47,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:32:47 BasicIcfg [2022-01-10 08:32:47,385 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 08:32:47,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 08:32:47,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 08:32:47,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 08:32:47,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:32:46" (1/4) ... [2022-01-10 08:32:47,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3f2d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:32:47, skipping insertion in model container [2022-01-10 08:32:47,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:32:47" (2/4) ... [2022-01-10 08:32:47,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3f2d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:32:47, skipping insertion in model container [2022-01-10 08:32:47,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:32:47" (3/4) ... [2022-01-10 08:32:47,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3f2d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:32:47, skipping insertion in model container [2022-01-10 08:32:47,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:32:47" (4/4) ... [2022-01-10 08:32:47,389 INFO L111 eAbstractionObserver]: Analyzing ICFG diamond_2-2.cTransformedIcfg [2022-01-10 08:32:47,392 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 08:32:47,393 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 08:32:47,439 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 08:32:47,443 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 08:32:47,443 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 08:32:47,465 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.736842105263158) internal successors, (33), 20 states have internal predecessors, (33), 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 08:32:47,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 08:32:47,468 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:32:47,468 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 08:32:47,468 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 08:32:47,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:32:47,472 INFO L85 PathProgramCache]: Analyzing trace with hash -743964407, now seen corresponding path program 1 times [2022-01-10 08:32:47,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:32:47,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970851501] [2022-01-10 08:32:47,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:32:47,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:32:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:32:47,649 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 08:32:47,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:32:47,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970851501] [2022-01-10 08:32:47,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970851501] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:32:47,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:32:47,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 08:32:47,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541782896] [2022-01-10 08:32:47,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:32:47,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 08:32:47,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:32:47,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 08:32:47,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 08:32:47,697 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.736842105263158) internal successors, (33), 20 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:32:47,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:32:47,727 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2022-01-10 08:32:47,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 08:32:47,729 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-01-10 08:32:47,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:32:47,733 INFO L225 Difference]: With dead ends: 29 [2022-01-10 08:32:47,733 INFO L226 Difference]: Without dead ends: 17 [2022-01-10 08:32:47,739 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 08:32:47,744 INFO L933 BasicCegarLoop]: 31 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, 31 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 08:32:47,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 08:32:47,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-01-10 08:32:47,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-01-10 08:32:47,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.6875) internal successors, (27), 16 states have internal predecessors, (27), 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 08:32:47,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 27 transitions. [2022-01-10 08:32:47,791 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 27 transitions. Word has length 6 [2022-01-10 08:32:47,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:32:47,792 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 27 transitions. [2022-01-10 08:32:47,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:32:47,793 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 27 transitions. [2022-01-10 08:32:47,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 08:32:47,793 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:32:47,793 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 08:32:47,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 08:32:47,794 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 08:32:47,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:32:47,811 INFO L85 PathProgramCache]: Analyzing trace with hash -743934616, now seen corresponding path program 1 times [2022-01-10 08:32:47,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:32:47,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591809681] [2022-01-10 08:32:47,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:32:47,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:32:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:32:47,927 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 08:32:47,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:32:47,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591809681] [2022-01-10 08:32:47,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591809681] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:32:47,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:32:47,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 08:32:47,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668007339] [2022-01-10 08:32:47,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:32:47,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 08:32:47,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:32:47,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 08:32:47,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 08:32:47,929 INFO L87 Difference]: Start difference. First operand 17 states and 27 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:32:47,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:32:47,993 INFO L93 Difference]: Finished difference Result 23 states and 34 transitions. [2022-01-10 08:32:47,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 08:32:47,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-01-10 08:32:47,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:32:47,995 INFO L225 Difference]: With dead ends: 23 [2022-01-10 08:32:47,995 INFO L226 Difference]: Without dead ends: 19 [2022-01-10 08:32:47,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 08:32:48,012 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 08:32:48,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 27 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 08:32:48,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-01-10 08:32:48,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-01-10 08:32:48,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 17 states have internal predecessors, (28), 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 08:32:48,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2022-01-10 08:32:48,016 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 28 transitions. Word has length 6 [2022-01-10 08:32:48,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:32:48,016 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 28 transitions. [2022-01-10 08:32:48,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:32:48,016 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2022-01-10 08:32:48,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 08:32:48,016 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:32:48,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:32:48,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 08:32:48,017 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 08:32:48,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:32:48,017 INFO L85 PathProgramCache]: Analyzing trace with hash 537097006, now seen corresponding path program 1 times [2022-01-10 08:32:48,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:32:48,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797335226] [2022-01-10 08:32:48,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:32:48,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:32:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:32:48,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:32:48,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:32:48,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797335226] [2022-01-10 08:32:48,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797335226] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:32:48,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:32:48,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 08:32:48,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148557596] [2022-01-10 08:32:48,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:32:48,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 08:32:48,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:32:48,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 08:32:48,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 08:32:48,128 INFO L87 Difference]: Start difference. First operand 18 states and 28 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 08:32:48,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:32:48,208 INFO L93 Difference]: Finished difference Result 48 states and 78 transitions. [2022-01-10 08:32:48,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 08:32:48,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2022-01-10 08:32:48,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:32:48,209 INFO L225 Difference]: With dead ends: 48 [2022-01-10 08:32:48,209 INFO L226 Difference]: Without dead ends: 33 [2022-01-10 08:32:48,212 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 08:32:48,213 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 11 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 08:32:48,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 23 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 08:32:48,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-01-10 08:32:48,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2022-01-10 08:32:48,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 states have internal predecessors, (40), 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 08:32:48,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2022-01-10 08:32:48,216 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 17 [2022-01-10 08:32:48,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:32:48,216 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2022-01-10 08:32:48,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 08:32:48,217 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2022-01-10 08:32:48,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 08:32:48,217 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:32:48,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:32:48,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 08:32:48,217 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 08:32:48,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:32:48,218 INFO L85 PathProgramCache]: Analyzing trace with hash 733610511, now seen corresponding path program 1 times [2022-01-10 08:32:48,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:32:48,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582060556] [2022-01-10 08:32:48,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:32:48,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:32:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:32:48,519 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 08:32:48,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:32:48,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582060556] [2022-01-10 08:32:48,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582060556] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 08:32:48,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213750160] [2022-01-10 08:32:48,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:32:48,520 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 08:32:48,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 08:32:48,522 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 08:32:48,523 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 08:32:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:32:48,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 32 conjunts are in the unsatisfiable core [2022-01-10 08:32:48,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 08:32:48,817 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 08:32:48,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 08:32:49,361 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 08:32:49,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213750160] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 08:32:49,362 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 08:32:49,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 34 [2022-01-10 08:32:49,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348156785] [2022-01-10 08:32:49,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 08:32:49,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-10 08:32:49,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:32:49,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-10 08:32:49,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=808, Unknown=0, NotChecked=0, Total=1122 [2022-01-10 08:32:49,365 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand has 34 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 34 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:32:58,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:32:58,182 INFO L93 Difference]: Finished difference Result 150 states and 173 transitions. [2022-01-10 08:32:58,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-10 08:32:58,183 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 34 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-01-10 08:32:58,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:32:58,184 INFO L225 Difference]: With dead ends: 150 [2022-01-10 08:32:58,184 INFO L226 Difference]: Without dead ends: 146 [2022-01-10 08:32:58,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 685 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=839, Invalid=1813, Unknown=0, NotChecked=0, Total=2652 [2022-01-10 08:32:58,186 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 84 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 08:32:58,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 63 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 08:32:58,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-01-10 08:32:58,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 51. [2022-01-10 08:32:58,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.26) internal successors, (63), 50 states have internal predecessors, (63), 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 08:32:58,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2022-01-10 08:32:58,193 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 17 [2022-01-10 08:32:58,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:32:58,193 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2022-01-10 08:32:58,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 34 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:32:58,193 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2022-01-10 08:32:58,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 08:32:58,194 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:32:58,194 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:32:58,212 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 08:32:58,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 08:32:58,395 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 08:32:58,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:32:58,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1078244562, now seen corresponding path program 1 times [2022-01-10 08:32:58,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:32:58,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931716118] [2022-01-10 08:32:58,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:32:58,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:32:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:32:58,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:32:58,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:32:58,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931716118] [2022-01-10 08:32:58,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931716118] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:32:58,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:32:58,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 08:32:58,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375458314] [2022-01-10 08:32:58,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:32:58,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 08:32:58,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:32:58,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 08:32:58,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 08:32:58,435 INFO L87 Difference]: Start difference. First operand 51 states and 63 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 08:32:58,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:32:58,466 INFO L93 Difference]: Finished difference Result 80 states and 91 transitions. [2022-01-10 08:32:58,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 08:32:58,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2022-01-10 08:32:58,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:32:58,470 INFO L225 Difference]: With dead ends: 80 [2022-01-10 08:32:58,474 INFO L226 Difference]: Without dead ends: 55 [2022-01-10 08:32:58,474 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 08:32:58,474 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 08:32:58,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 23 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 08:32:58,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-01-10 08:32:58,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2022-01-10 08:32:58,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.06) internal successors, (53), 50 states have internal predecessors, (53), 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 08:32:58,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2022-01-10 08:32:58,478 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 17 [2022-01-10 08:32:58,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:32:58,479 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2022-01-10 08:32:58,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 08:32:58,479 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2022-01-10 08:32:58,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 08:32:58,479 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:32:58,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:32:58,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 08:32:58,479 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 08:32:58,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:32:58,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1077321041, now seen corresponding path program 1 times [2022-01-10 08:32:58,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:32:58,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008886106] [2022-01-10 08:32:58,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:32:58,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:32:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:32:58,720 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 08:32:58,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:32:58,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008886106] [2022-01-10 08:32:58,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008886106] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 08:32:58,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704904512] [2022-01-10 08:32:58,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:32:58,721 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 08:32:58,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 08:32:58,722 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 08:32:58,738 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 08:32:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:32:58,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 45 conjunts are in the unsatisfiable core [2022-01-10 08:32:58,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 08:32:59,148 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 08:32:59,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 08:32:59,514 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 08:32:59,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704904512] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 08:32:59,515 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 08:32:59,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 21 [2022-01-10 08:32:59,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114697315] [2022-01-10 08:32:59,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 08:32:59,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-10 08:32:59,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:32:59,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-10 08:32:59,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2022-01-10 08:32:59,516 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand has 21 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 21 states have internal predecessors, (43), 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 08:32:59,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:32:59,806 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2022-01-10 08:32:59,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 08:32:59,806 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 21 states have internal predecessors, (43), 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 17 [2022-01-10 08:32:59,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:32:59,807 INFO L225 Difference]: With dead ends: 65 [2022-01-10 08:32:59,807 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 08:32:59,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 10 SyntacticMatches, 17 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=150, Invalid=402, Unknown=0, NotChecked=0, Total=552 [2022-01-10 08:32:59,808 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 21 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 08:32:59,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 11 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 08:32:59,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 08:32:59,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 08:32:59,808 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 08:32:59,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 08:32:59,809 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-01-10 08:32:59,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:32:59,809 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 08:32:59,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 21 states have internal predecessors, (43), 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 08:32:59,809 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 08:32:59,809 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 08:32:59,812 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 08:32:59,818 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 08:33:00,016 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,SelfDestructingSolverStorable5 [2022-01-10 08:33:00,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 08:33:00,082 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 08:33:00,082 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 08:33:00,083 INFO L854 garLoopResultBuilder]: At program point L45-1(lines 17 47) the Hoare annotation is: (let ((.cse1 (div |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 2))) (let ((.cse0 (* 2 .cse1))) (or (= |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 0) (and (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (< .cse0 |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) (< |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 4294967296) (<= (div (+ (* 4 .cse1) (* (- 2) |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) (- 8589934585) |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (- 4294967296)) (div (+ 8589934587 (* (- 1) |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|)) 4294967296))) (and (= (mod |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 2) (mod |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 2)) (= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| .cse0))))) [2022-01-10 08:33:00,083 INFO L858 garLoopResultBuilder]: For program point L17-2(lines 17 47) no Hoare annotation was computed. [2022-01-10 08:33:00,083 INFO L858 garLoopResultBuilder]: For program point L18(lines 18 19) no Hoare annotation was computed. [2022-01-10 08:33:00,083 INFO L858 garLoopResultBuilder]: For program point L7(lines 7 9) no Hoare annotation was computed. [2022-01-10 08:33:00,083 INFO L858 garLoopResultBuilder]: For program point L18-2(lines 17 47) no Hoare annotation was computed. [2022-01-10 08:33:00,083 INFO L858 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2022-01-10 08:33:00,083 INFO L861 garLoopResultBuilder]: At program point L7-2(lines 6 11) the Hoare annotation is: true [2022-01-10 08:33:00,083 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 17 47) no Hoare annotation was computed. [2022-01-10 08:33:00,083 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2022-01-10 08:33:00,083 INFO L858 garLoopResultBuilder]: For program point L13(lines 13 50) no Hoare annotation was computed. [2022-01-10 08:33:00,083 INFO L858 garLoopResultBuilder]: For program point L24-1(lines 17 47) no Hoare annotation was computed. [2022-01-10 08:33:00,083 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 08:33:00,084 INFO L858 garLoopResultBuilder]: For program point L27-1(lines 17 47) no Hoare annotation was computed. [2022-01-10 08:33:00,084 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 08:33:00,084 INFO L858 garLoopResultBuilder]: For program point L30-1(lines 17 47) no Hoare annotation was computed. [2022-01-10 08:33:00,084 INFO L858 garLoopResultBuilder]: For program point L33-1(lines 17 47) no Hoare annotation was computed. [2022-01-10 08:33:00,084 INFO L858 garLoopResultBuilder]: For program point L36-1(lines 17 47) no Hoare annotation was computed. [2022-01-10 08:33:00,084 INFO L858 garLoopResultBuilder]: For program point L39-1(lines 17 47) no Hoare annotation was computed. [2022-01-10 08:33:00,084 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 17 47) no Hoare annotation was computed. [2022-01-10 08:33:00,087 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-01-10 08:33:00,088 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 08:33:00,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:33:00 BasicIcfg [2022-01-10 08:33:00,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 08:33:00,125 INFO L158 Benchmark]: Toolchain (without parser) took 13300.41ms. Allocated memory was 187.7MB in the beginning and 225.4MB in the end (delta: 37.7MB). Free memory was 132.1MB in the beginning and 174.0MB in the end (delta: -41.9MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 08:33:00,126 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 187.7MB. Free memory was 148.9MB in the beginning and 148.8MB in the end (delta: 71.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 08:33:00,126 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.49ms. Allocated memory is still 187.7MB. Free memory was 131.9MB in the beginning and 158.1MB in the end (delta: -26.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-10 08:33:00,126 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.54ms. Allocated memory is still 187.7MB. Free memory was 158.1MB in the beginning and 156.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 08:33:00,133 INFO L158 Benchmark]: Boogie Preprocessor took 28.92ms. Allocated memory is still 187.7MB. Free memory was 156.6MB in the beginning and 155.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 08:33:00,133 INFO L158 Benchmark]: RCFGBuilder took 237.53ms. Allocated memory is still 187.7MB. Free memory was 155.5MB in the beginning and 144.0MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 08:33:00,133 INFO L158 Benchmark]: IcfgTransformer took 40.75ms. Allocated memory is still 187.7MB. Free memory was 144.0MB in the beginning and 140.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 08:33:00,133 INFO L158 Benchmark]: TraceAbstraction took 12735.90ms. Allocated memory was 187.7MB in the beginning and 225.4MB in the end (delta: 37.7MB). Free memory was 140.3MB in the beginning and 174.0MB in the end (delta: -33.7MB). Peak memory consumption was 4.6MB. Max. memory is 8.0GB. [2022-01-10 08:33:00,135 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 187.7MB. Free memory was 148.9MB in the beginning and 148.8MB in the end (delta: 71.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 227.49ms. Allocated memory is still 187.7MB. Free memory was 131.9MB in the beginning and 158.1MB in the end (delta: -26.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.54ms. Allocated memory is still 187.7MB. Free memory was 158.1MB in the beginning and 156.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.92ms. Allocated memory is still 187.7MB. Free memory was 156.6MB in the beginning and 155.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 237.53ms. Allocated memory is still 187.7MB. Free memory was 155.5MB in the beginning and 144.0MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 40.75ms. Allocated memory is still 187.7MB. Free memory was 144.0MB in the beginning and 140.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 12735.90ms. Allocated memory was 187.7MB in the beginning and 225.4MB in the end (delta: 37.7MB). Free memory was 140.3MB in the beginning and 174.0MB in the end (delta: -33.7MB). Peak memory consumption was 4.6MB. 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 - PositiveResult [Line: 8]: 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, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 123 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 123 mSDsluCounter, 178 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 81 mSDsCounter, 560 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 961 IncrementalHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 560 mSolverCounterUnsat, 97 mSDtfsCounter, 961 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 31 SyntacticMatches, 18 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 881 ImplicationChecksByTransitivity, 8.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=4, InterpolantAutomatonStates: 55, 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, 6 MinimizatonAttempts, 104 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 8 NumberOfFragments, 55 HoareAnnotationTreeSize, 2 FomulaSimplifications, 82 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 384 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 1426 SizeOfPredicates, 4 NumberOfNonLiveVariables, 318 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 2/8 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: 6]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((y[0:0] == x[0:0] && ~bvmul64(2bv32, ~zero_extendFrom31To32(y[31:1])) == y) || (((~bvult64(~bvmul64(2bv32, ~zero_extendFrom31To32(y[31:1])), y) && ~bvsle65((if !(0bv65 == ~bvurem32(~bvadd16(~bvadd16(~bvadd16(~zero_extendFrom33To65(~bvmul64(4bv33, ~zero_extendFrom31To33(y[31:1]))), ~sign_extendFrom8To32(~bvmul64(18446744073709551614bv64, ~zero_extendFrom32To64(y)))), 36893488138829168647bv65), ~zero_extendFrom32To65(x)), 36893488143124135936bv65)) then (if ~bvadd16(~bvadd16(~bvadd16(~zero_extendFrom33To65(~bvmul64(4bv33, ~zero_extendFrom31To33(y[31:1]))), ~sign_extendFrom8To32(~bvmul64(18446744073709551614bv64, ~zero_extendFrom32To64(y)))), 36893488138829168647bv65), ~zero_extendFrom32To65(x))[64:64] == 1bv1 then ~bvadd16(1bv65, ~bvsdiv65(~bvadd16(~bvadd16(~bvadd16(~zero_extendFrom33To65(~bvmul64(4bv33, ~zero_extendFrom31To33(y[31:1]))), ~sign_extendFrom8To32(~bvmul64(18446744073709551614bv64, ~zero_extendFrom32To64(y)))), 36893488138829168647bv65), ~zero_extendFrom32To65(x)), 36893488143124135936bv65)) else ~bvsdiv65(~bvadd16(~bvadd16(~bvadd16(~zero_extendFrom33To65(~bvmul64(4bv33, ~zero_extendFrom31To33(y[31:1]))), ~sign_extendFrom8To32(~bvmul64(18446744073709551614bv64, ~zero_extendFrom32To64(y)))), 36893488138829168647bv65), ~zero_extendFrom32To65(x)), 36893488143124135936bv65)) else ~bvsdiv65(~bvadd16(~bvadd16(~bvadd16(~zero_extendFrom33To65(~bvmul64(4bv33, ~zero_extendFrom31To33(y[31:1]))), ~sign_extendFrom8To32(~bvmul64(18446744073709551614bv64, ~zero_extendFrom32To64(y)))), 36893488138829168647bv65), ~zero_extendFrom32To65(x)), 36893488143124135936bv65)), ~sign_extendFrom8To32(~bvadd16(8589934587bv65, ~sign_extendFrom8To32(~bvmul64(~zero_extendFrom32To64(x), 18446744073709551615bv64)))[64:32]))) && ~bvule32(0bv32, x)) && ~bvult64(~zero_extendFrom32To33(x), 4294967296bv33))) || x == 0bv32 RESULT: Ultimate proved your program to be correct! [2022-01-10 08:33:00,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...