/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/psyco/psyco_security.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 11:39:14,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 11:39:14,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 11:39:14,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 11:39:15,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 11:39:15,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 11:39:15,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 11:39:15,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 11:39:15,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 11:39:15,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 11:39:15,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 11:39:15,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 11:39:15,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 11:39:15,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 11:39:15,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 11:39:15,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 11:39:15,044 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 11:39:15,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 11:39:15,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 11:39:15,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 11:39:15,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 11:39:15,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 11:39:15,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 11:39:15,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 11:39:15,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 11:39:15,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 11:39:15,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 11:39:15,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 11:39:15,058 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 11:39:15,083 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 11:39:15,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 11:39:15,083 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 11:39:15,083 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 11:39:15,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 11:39:15,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 11:39:15,084 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 11:39:15,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 11:39:15,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 11:39:15,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 11:39:15,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 11:39:15,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 11:39:15,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 11:39:15,085 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 11:39:15,085 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 11:39:15,086 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 11:39:15,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 11:39:15,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 11:39:15,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 11:39:15,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 11:39:15,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 11:39:15,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 11:39:15,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 11:39:15,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 11:39:15,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 11:39:15,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 11:39:15,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 11:39:15,089 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 11:39:15,089 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 11:39:15,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 11:39:15,090 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 11:39:15,090 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 11:39:15,091 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 11:39:15,091 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 11:39:15,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 11:39:15,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 11:39:15,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 11:39:15,351 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 11:39:15,351 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 11:39:15,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_security.c [2022-01-10 11:39:15,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edd11149a/97bd0c3d0ab54ec1812257fd5a41d66b/FLAG87e5e4d5b [2022-01-10 11:39:15,803 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 11:39:15,803 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_security.c [2022-01-10 11:39:15,812 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edd11149a/97bd0c3d0ab54ec1812257fd5a41d66b/FLAG87e5e4d5b [2022-01-10 11:39:15,827 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edd11149a/97bd0c3d0ab54ec1812257fd5a41d66b [2022-01-10 11:39:15,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 11:39:15,831 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 11:39:15,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 11:39:15,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 11:39:15,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 11:39:15,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:39:15" (1/1) ... [2022-01-10 11:39:15,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b1e0981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:39:15, skipping insertion in model container [2022-01-10 11:39:15,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:39:15" (1/1) ... [2022-01-10 11:39:15,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 11:39:15,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 11:39:16,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_security.c[12744,12757] [2022-01-10 11:39:16,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 11:39:16,117 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 11:39:16,151 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_security.c[12744,12757] [2022-01-10 11:39:16,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 11:39:16,171 INFO L208 MainTranslator]: Completed translation [2022-01-10 11:39:16,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:39:16 WrapperNode [2022-01-10 11:39:16,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 11:39:16,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 11:39:16,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 11:39:16,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 11:39:16,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:39:16" (1/1) ... [2022-01-10 11:39:16,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:39:16" (1/1) ... [2022-01-10 11:39:16,217 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 248 [2022-01-10 11:39:16,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 11:39:16,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 11:39:16,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 11:39:16,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 11:39:16,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:39:16" (1/1) ... [2022-01-10 11:39:16,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:39:16" (1/1) ... [2022-01-10 11:39:16,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:39:16" (1/1) ... [2022-01-10 11:39:16,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:39:16" (1/1) ... [2022-01-10 11:39:16,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:39:16" (1/1) ... [2022-01-10 11:39:16,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:39:16" (1/1) ... [2022-01-10 11:39:16,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:39:16" (1/1) ... [2022-01-10 11:39:16,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 11:39:16,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 11:39:16,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 11:39:16,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 11:39:16,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:39:16" (1/1) ... [2022-01-10 11:39:16,269 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 11:39:16,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 11:39:16,290 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 11:39:16,305 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 11:39:16,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 11:39:16,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 11:39:16,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 11:39:16,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 11:39:16,409 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 11:39:16,410 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 11:39:16,631 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 11:39:16,636 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 11:39:16,636 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2022-01-10 11:39:16,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:39:16 BoogieIcfgContainer [2022-01-10 11:39:16,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 11:39:16,639 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 11:39:16,639 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 11:39:16,644 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 11:39:16,646 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:39:16" (1/1) ... [2022-01-10 11:39:16,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:39:16 BasicIcfg [2022-01-10 11:39:16,761 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 11:39:16,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 11:39:16,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 11:39:16,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 11:39:16,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:39:15" (1/4) ... [2022-01-10 11:39:16,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463c9efe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:39:16, skipping insertion in model container [2022-01-10 11:39:16,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:39:16" (2/4) ... [2022-01-10 11:39:16,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463c9efe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:39:16, skipping insertion in model container [2022-01-10 11:39:16,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:39:16" (3/4) ... [2022-01-10 11:39:16,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463c9efe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:39:16, skipping insertion in model container [2022-01-10 11:39:16,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:39:16" (4/4) ... [2022-01-10 11:39:16,768 INFO L111 eAbstractionObserver]: Analyzing ICFG psyco_security.cTransformedIcfg [2022-01-10 11:39:16,778 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 11:39:16,778 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 11:39:16,816 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 11:39:16,824 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 11:39:16,824 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 11:39:16,841 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 76 states have (on average 1.9342105263157894) internal successors, (147), 77 states have internal predecessors, (147), 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 11:39:16,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 11:39:16,845 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:39:16,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 11:39:16,846 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 11:39:16,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:39:16,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1014808776, now seen corresponding path program 1 times [2022-01-10 11:39:16,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:39:16,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434179527] [2022-01-10 11:39:16,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:39:16,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:39:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 11:39:17,011 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 11:39:17,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 11:39:17,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434179527] [2022-01-10 11:39:17,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434179527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 11:39:17,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 11:39:17,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 11:39:17,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99329810] [2022-01-10 11:39:17,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 11:39:17,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 11:39:17,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 11:39:17,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 11:39:17,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 11:39:17,054 INFO L87 Difference]: Start difference. First operand has 78 states, 76 states have (on average 1.9342105263157894) internal successors, (147), 77 states have internal predecessors, (147), 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 4.5) internal successors, (9), 2 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 11:39:17,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 11:39:17,085 INFO L93 Difference]: Finished difference Result 154 states and 292 transitions. [2022-01-10 11:39:17,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 11:39:17,087 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 11:39:17,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 11:39:17,093 INFO L225 Difference]: With dead ends: 154 [2022-01-10 11:39:17,094 INFO L226 Difference]: Without dead ends: 74 [2022-01-10 11:39:17,096 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 11:39:17,098 INFO L933 BasicCegarLoop]: 120 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, 120 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 11:39:17,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 11:39:17,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-01-10 11:39:17,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-01-10 11:39:17,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.4931506849315068) internal successors, (109), 73 states have internal predecessors, (109), 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 11:39:17,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 109 transitions. [2022-01-10 11:39:17,128 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 109 transitions. Word has length 9 [2022-01-10 11:39:17,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 11:39:17,128 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 109 transitions. [2022-01-10 11:39:17,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 11:39:17,130 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 109 transitions. [2022-01-10 11:39:17,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 11:39:17,131 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:39:17,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 11:39:17,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 11:39:17,132 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 11:39:17,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:39:17,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1424839149, now seen corresponding path program 1 times [2022-01-10 11:39:17,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:39:17,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405019551] [2022-01-10 11:39:17,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:39:17,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:39:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 11:39:17,202 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 11:39:17,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 11:39:17,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405019551] [2022-01-10 11:39:17,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405019551] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 11:39:17,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 11:39:17,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 11:39:17,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118338912] [2022-01-10 11:39:17,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 11:39:17,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 11:39:17,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 11:39:17,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 11:39:17,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 11:39:17,205 INFO L87 Difference]: Start difference. First operand 74 states and 109 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 11:39:17,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 11:39:17,246 INFO L93 Difference]: Finished difference Result 149 states and 220 transitions. [2022-01-10 11:39:17,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 11:39:17,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) Word has length 10 [2022-01-10 11:39:17,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 11:39:17,247 INFO L225 Difference]: With dead ends: 149 [2022-01-10 11:39:17,247 INFO L226 Difference]: Without dead ends: 77 [2022-01-10 11:39:17,248 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 11:39:17,249 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 4 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 11:39:17,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 190 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 11:39:17,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-01-10 11:39:17,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-01-10 11:39:17,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.4736842105263157) internal successors, (112), 76 states have internal predecessors, (112), 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 11:39:17,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 112 transitions. [2022-01-10 11:39:17,257 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 112 transitions. Word has length 10 [2022-01-10 11:39:17,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 11:39:17,257 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 112 transitions. [2022-01-10 11:39:17,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 11:39:17,258 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 112 transitions. [2022-01-10 11:39:17,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 11:39:17,258 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:39:17,258 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 11:39:17,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 11:39:17,259 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 11:39:17,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:39:17,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1679815819, now seen corresponding path program 1 times [2022-01-10 11:39:17,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:39:17,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375008324] [2022-01-10 11:39:17,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:39:17,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:39:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 11:39:17,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 11:39:17,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 11:39:17,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375008324] [2022-01-10 11:39:17,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375008324] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 11:39:17,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 11:39:17,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 11:39:17,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583246663] [2022-01-10 11:39:17,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 11:39:17,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 11:39:17,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 11:39:17,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 11:39:17,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 11:39:17,316 INFO L87 Difference]: Start difference. First operand 77 states and 112 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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 11:39:17,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 11:39:17,361 INFO L93 Difference]: Finished difference Result 157 states and 229 transitions. [2022-01-10 11:39:17,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 11:39:17,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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 15 [2022-01-10 11:39:17,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 11:39:17,362 INFO L225 Difference]: With dead ends: 157 [2022-01-10 11:39:17,362 INFO L226 Difference]: Without dead ends: 83 [2022-01-10 11:39:17,363 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 11:39:17,364 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 21 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 11:39:17,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 174 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 11:39:17,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-01-10 11:39:17,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2022-01-10 11:39:17,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.45) internal successors, (116), 80 states have internal predecessors, (116), 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 11:39:17,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 116 transitions. [2022-01-10 11:39:17,375 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 116 transitions. Word has length 15 [2022-01-10 11:39:17,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 11:39:17,375 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 116 transitions. [2022-01-10 11:39:17,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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 11:39:17,375 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 116 transitions. [2022-01-10 11:39:17,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 11:39:17,376 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:39:17,376 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 11:39:17,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 11:39:17,376 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 11:39:17,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:39:17,377 INFO L85 PathProgramCache]: Analyzing trace with hash 941331296, now seen corresponding path program 1 times [2022-01-10 11:39:17,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:39:17,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74649963] [2022-01-10 11:39:17,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:39:17,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:39:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 11:39:17,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 11:39:17,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 11:39:17,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74649963] [2022-01-10 11:39:17,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74649963] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 11:39:17,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 11:39:17,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 11:39:17,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614475506] [2022-01-10 11:39:17,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 11:39:17,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 11:39:17,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 11:39:17,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 11:39:17,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 11:39:17,417 INFO L87 Difference]: Start difference. First operand 81 states and 116 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 11:39:17,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 11:39:17,472 INFO L93 Difference]: Finished difference Result 107 states and 147 transitions. [2022-01-10 11:39:17,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 11:39:17,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2022-01-10 11:39:17,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 11:39:17,474 INFO L225 Difference]: With dead ends: 107 [2022-01-10 11:39:17,474 INFO L226 Difference]: Without dead ends: 99 [2022-01-10 11:39:17,474 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 11:39:17,475 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 16 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 11:39:17,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 182 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 11:39:17,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-01-10 11:39:17,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 90. [2022-01-10 11:39:17,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.4269662921348314) internal successors, (127), 89 states have internal predecessors, (127), 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 11:39:17,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 127 transitions. [2022-01-10 11:39:17,483 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 127 transitions. Word has length 18 [2022-01-10 11:39:17,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 11:39:17,483 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 127 transitions. [2022-01-10 11:39:17,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 11:39:17,483 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 127 transitions. [2022-01-10 11:39:17,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-10 11:39:17,484 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:39:17,484 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 11:39:17,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 11:39:17,484 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 11:39:17,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:39:17,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1711211651, now seen corresponding path program 1 times [2022-01-10 11:39:17,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:39:17,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330527959] [2022-01-10 11:39:17,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:39:17,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:39:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 11:39:17,579 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 11:39:17,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 11:39:17,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330527959] [2022-01-10 11:39:17,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330527959] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 11:39:17,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 11:39:17,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 11:39:17,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797277970] [2022-01-10 11:39:17,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 11:39:17,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 11:39:17,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 11:39:17,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 11:39:17,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 11:39:17,581 INFO L87 Difference]: Start difference. First operand 90 states and 127 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 11:39:17,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 11:39:17,613 INFO L93 Difference]: Finished difference Result 153 states and 219 transitions. [2022-01-10 11:39:17,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 11:39:17,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 22 [2022-01-10 11:39:17,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 11:39:17,614 INFO L225 Difference]: With dead ends: 153 [2022-01-10 11:39:17,614 INFO L226 Difference]: Without dead ends: 66 [2022-01-10 11:39:17,615 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 11:39:17,616 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 56 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 11:39:17,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 99 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 11:39:17,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-01-10 11:39:17,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-01-10 11:39:17,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.4153846153846155) internal successors, (92), 65 states have internal predecessors, (92), 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 11:39:17,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 92 transitions. [2022-01-10 11:39:17,621 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 92 transitions. Word has length 22 [2022-01-10 11:39:17,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 11:39:17,624 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 92 transitions. [2022-01-10 11:39:17,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 11:39:17,625 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 92 transitions. [2022-01-10 11:39:17,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-10 11:39:17,626 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:39:17,626 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 11:39:17,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 11:39:17,626 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 11:39:17,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:39:17,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1871978791, now seen corresponding path program 1 times [2022-01-10 11:39:17,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:39:17,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877790523] [2022-01-10 11:39:17,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:39:17,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:39:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 11:39:17,719 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 11:39:17,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 11:39:17,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877790523] [2022-01-10 11:39:17,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877790523] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 11:39:17,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 11:39:17,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 11:39:17,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927155247] [2022-01-10 11:39:17,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 11:39:17,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 11:39:17,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 11:39:17,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 11:39:17,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 11:39:17,722 INFO L87 Difference]: Start difference. First operand 66 states and 92 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 11:39:17,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 11:39:17,802 INFO L93 Difference]: Finished difference Result 154 states and 224 transitions. [2022-01-10 11:39:17,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 11:39:17,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 26 [2022-01-10 11:39:17,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 11:39:17,805 INFO L225 Difference]: With dead ends: 154 [2022-01-10 11:39:17,805 INFO L226 Difference]: Without dead ends: 107 [2022-01-10 11:39:17,805 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 11:39:17,809 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 39 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 11:39:17,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 139 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 11:39:17,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-01-10 11:39:17,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 95. [2022-01-10 11:39:17,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.425531914893617) internal successors, (134), 94 states have internal predecessors, (134), 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 11:39:17,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 134 transitions. [2022-01-10 11:39:17,823 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 134 transitions. Word has length 26 [2022-01-10 11:39:17,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 11:39:17,823 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 134 transitions. [2022-01-10 11:39:17,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 11:39:17,824 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 134 transitions. [2022-01-10 11:39:17,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 11:39:17,824 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:39:17,825 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 11:39:17,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 11:39:17,825 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 11:39:17,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:39:17,825 INFO L85 PathProgramCache]: Analyzing trace with hash 495671524, now seen corresponding path program 1 times [2022-01-10 11:39:17,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:39:17,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665894234] [2022-01-10 11:39:17,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:39:17,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:39:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 11:39:17,866 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 11:39:17,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 11:39:17,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665894234] [2022-01-10 11:39:17,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665894234] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 11:39:17,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 11:39:17,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 11:39:17,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014840392] [2022-01-10 11:39:17,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 11:39:17,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 11:39:17,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 11:39:17,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 11:39:17,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 11:39:17,868 INFO L87 Difference]: Start difference. First operand 95 states and 134 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 11:39:17,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 11:39:17,906 INFO L93 Difference]: Finished difference Result 163 states and 231 transitions. [2022-01-10 11:39:17,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 11:39:17,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 27 [2022-01-10 11:39:17,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 11:39:17,907 INFO L225 Difference]: With dead ends: 163 [2022-01-10 11:39:17,907 INFO L226 Difference]: Without dead ends: 89 [2022-01-10 11:39:17,909 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 11:39:17,909 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 26 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 11:39:17,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 126 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 11:39:17,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-01-10 11:39:17,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2022-01-10 11:39:17,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 1.372093023255814) internal successors, (118), 86 states have internal predecessors, (118), 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 11:39:17,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 118 transitions. [2022-01-10 11:39:17,916 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 118 transitions. Word has length 27 [2022-01-10 11:39:17,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 11:39:17,916 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 118 transitions. [2022-01-10 11:39:17,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 11:39:17,916 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 118 transitions. [2022-01-10 11:39:17,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 11:39:17,917 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:39:17,917 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 11:39:17,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 11:39:17,917 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 11:39:17,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:39:17,918 INFO L85 PathProgramCache]: Analyzing trace with hash -269315474, now seen corresponding path program 1 times [2022-01-10 11:39:17,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:39:17,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211280490] [2022-01-10 11:39:17,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:39:17,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:39:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 11:39:17,949 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 11:39:17,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 11:39:17,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211280490] [2022-01-10 11:39:17,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211280490] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 11:39:17,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 11:39:17,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 11:39:17,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679016168] [2022-01-10 11:39:17,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 11:39:17,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 11:39:17,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 11:39:17,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 11:39:17,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 11:39:17,951 INFO L87 Difference]: Start difference. First operand 87 states and 118 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 11:39:17,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 11:39:17,980 INFO L93 Difference]: Finished difference Result 134 states and 182 transitions. [2022-01-10 11:39:17,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 11:39:17,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 27 [2022-01-10 11:39:17,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 11:39:17,981 INFO L225 Difference]: With dead ends: 134 [2022-01-10 11:39:17,981 INFO L226 Difference]: Without dead ends: 68 [2022-01-10 11:39:17,982 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 11:39:17,984 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 29 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 11:39:17,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 108 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 11:39:17,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-01-10 11:39:17,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-01-10 11:39:17,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.2985074626865671) internal successors, (87), 67 states have internal predecessors, (87), 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 11:39:18,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 87 transitions. [2022-01-10 11:39:18,000 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 87 transitions. Word has length 27 [2022-01-10 11:39:18,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 11:39:18,000 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 87 transitions. [2022-01-10 11:39:18,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 11:39:18,000 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 87 transitions. [2022-01-10 11:39:18,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-10 11:39:18,001 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:39:18,001 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 11:39:18,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 11:39:18,002 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 11:39:18,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:39:18,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1361373201, now seen corresponding path program 1 times [2022-01-10 11:39:18,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:39:18,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681463901] [2022-01-10 11:39:18,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:39:18,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:39:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 11:39:18,057 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 11:39:18,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 11:39:18,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681463901] [2022-01-10 11:39:18,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681463901] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 11:39:18,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 11:39:18,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 11:39:18,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804413978] [2022-01-10 11:39:18,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 11:39:18,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 11:39:18,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 11:39:18,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 11:39:18,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 11:39:18,060 INFO L87 Difference]: Start difference. First operand 68 states and 87 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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 11:39:18,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 11:39:18,082 INFO L93 Difference]: Finished difference Result 111 states and 145 transitions. [2022-01-10 11:39:18,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 11:39:18,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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) Word has length 28 [2022-01-10 11:39:18,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 11:39:18,084 INFO L225 Difference]: With dead ends: 111 [2022-01-10 11:39:18,084 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 11:39:18,085 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 11:39:18,087 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 16 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 11:39:18,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 106 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 11:39:18,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 11:39:18,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 11:39:18,089 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 11:39:18,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 11:39:18,089 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2022-01-10 11:39:18,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 11:39:18,089 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 11:39:18,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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 11:39:18,090 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 11:39:18,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 11:39:18,092 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 11:39:18,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 11:39:18,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 11:39:18,137 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 11:39:18,137 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 11:39:18,137 INFO L854 garLoopResultBuilder]: At program point L24-2(lines 24 387) the Hoare annotation is: (or (and (= |ULTIMATE.start_ULTIMATE.start_main_~this_state~0#1Int| 0) (= |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 0)) (and (= |ULTIMATE.start_ULTIMATE.start_main_~this_state~0#1Int| 3) (<= 4 |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int|))) [2022-01-10 11:39:18,138 INFO L854 garLoopResultBuilder]: At program point L383(lines 24 387) the Hoare annotation is: (or (and (= |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 3) (= |ULTIMATE.start_ULTIMATE.start_main_~this_state~0#1Int| 2)) (and (= |ULTIMATE.start_ULTIMATE.start_main_~this_state~0#1Int| 3) (<= 4 |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int|)) (= |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 0) (and (= |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 2) (= |ULTIMATE.start_ULTIMATE.start_main_~this_state~0#1Int| 0))) [2022-01-10 11:39:18,138 INFO L858 garLoopResultBuilder]: For program point L24-3(lines 24 387) no Hoare annotation was computed. [2022-01-10 11:39:18,138 INFO L858 garLoopResultBuilder]: For program point L29(lines 29 48) no Hoare annotation was computed. [2022-01-10 11:39:18,138 INFO L861 garLoopResultBuilder]: At program point L15(lines 15 392) the Hoare annotation is: true [2022-01-10 11:39:18,138 INFO L858 garLoopResultBuilder]: For program point L30(lines 30 45) no Hoare annotation was computed. [2022-01-10 11:39:18,138 INFO L858 garLoopResultBuilder]: For program point L49(lines 49 100) no Hoare annotation was computed. [2022-01-10 11:39:18,138 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 11:39:18,138 INFO L858 garLoopResultBuilder]: For program point L32(lines 32 43) no Hoare annotation was computed. [2022-01-10 11:39:18,138 INFO L858 garLoopResultBuilder]: For program point L50(lines 50 65) no Hoare annotation was computed. [2022-01-10 11:39:18,138 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 184) no Hoare annotation was computed. [2022-01-10 11:39:18,139 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 11:39:18,139 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 38) no Hoare annotation was computed. [2022-01-10 11:39:18,139 INFO L858 garLoopResultBuilder]: For program point L52(lines 52 63) no Hoare annotation was computed. [2022-01-10 11:39:18,139 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 81) no Hoare annotation was computed. [2022-01-10 11:39:18,139 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 117) no Hoare annotation was computed. [2022-01-10 11:39:18,139 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 284) no Hoare annotation was computed. [2022-01-10 11:39:18,139 INFO L854 garLoopResultBuilder]: At program point L373(lines 15 392) the Hoare annotation is: false [2022-01-10 11:39:18,139 INFO L858 garLoopResultBuilder]: For program point L56(lines 56 58) no Hoare annotation was computed. [2022-01-10 11:39:18,139 INFO L858 garLoopResultBuilder]: For program point L68(lines 68 79) no Hoare annotation was computed. [2022-01-10 11:39:18,139 INFO L858 garLoopResultBuilder]: For program point L82(lines 82 97) no Hoare annotation was computed. [2022-01-10 11:39:18,139 INFO L858 garLoopResultBuilder]: For program point L104(lines 104 115) no Hoare annotation was computed. [2022-01-10 11:39:18,140 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 133) no Hoare annotation was computed. [2022-01-10 11:39:18,140 INFO L858 garLoopResultBuilder]: For program point L186(lines 186 201) no Hoare annotation was computed. [2022-01-10 11:39:18,140 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 384) no Hoare annotation was computed. [2022-01-10 11:39:18,140 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 391) no Hoare annotation was computed. [2022-01-10 11:39:18,140 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 74) no Hoare annotation was computed. [2022-01-10 11:39:18,140 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 95) no Hoare annotation was computed. [2022-01-10 11:39:18,140 INFO L858 garLoopResultBuilder]: For program point L108(lines 108 110) no Hoare annotation was computed. [2022-01-10 11:39:18,140 INFO L858 garLoopResultBuilder]: For program point L120(lines 120 131) no Hoare annotation was computed. [2022-01-10 11:39:18,140 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 149) no Hoare annotation was computed. [2022-01-10 11:39:18,140 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 199) no Hoare annotation was computed. [2022-01-10 11:39:18,140 INFO L858 garLoopResultBuilder]: For program point L202(lines 202 217) no Hoare annotation was computed. [2022-01-10 11:39:18,141 INFO L858 garLoopResultBuilder]: For program point L286(lines 286 301) no Hoare annotation was computed. [2022-01-10 11:39:18,141 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 90) no Hoare annotation was computed. [2022-01-10 11:39:18,141 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 126) no Hoare annotation was computed. [2022-01-10 11:39:18,141 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 147) no Hoare annotation was computed. [2022-01-10 11:39:18,141 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 165) no Hoare annotation was computed. [2022-01-10 11:39:18,141 INFO L858 garLoopResultBuilder]: For program point L192(lines 192 194) no Hoare annotation was computed. [2022-01-10 11:39:18,141 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 215) no Hoare annotation was computed. [2022-01-10 11:39:18,141 INFO L858 garLoopResultBuilder]: For program point L218(lines 218 233) no Hoare annotation was computed. [2022-01-10 11:39:18,141 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 299) no Hoare annotation was computed. [2022-01-10 11:39:18,141 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 317) no Hoare annotation was computed. [2022-01-10 11:39:18,141 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 142) no Hoare annotation was computed. [2022-01-10 11:39:18,142 INFO L858 garLoopResultBuilder]: For program point L152(lines 152 163) no Hoare annotation was computed. [2022-01-10 11:39:18,142 INFO L858 garLoopResultBuilder]: For program point L166(lines 166 181) no Hoare annotation was computed. [2022-01-10 11:39:18,142 INFO L858 garLoopResultBuilder]: For program point L208(lines 208 210) no Hoare annotation was computed. [2022-01-10 11:39:18,142 INFO L858 garLoopResultBuilder]: For program point L220(lines 220 231) no Hoare annotation was computed. [2022-01-10 11:39:18,142 INFO L858 garLoopResultBuilder]: For program point L234(lines 234 249) no Hoare annotation was computed. [2022-01-10 11:39:18,142 INFO L858 garLoopResultBuilder]: For program point L292(lines 292 294) no Hoare annotation was computed. [2022-01-10 11:39:18,142 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 315) no Hoare annotation was computed. [2022-01-10 11:39:18,142 INFO L858 garLoopResultBuilder]: For program point L318(lines 318 333) no Hoare annotation was computed. [2022-01-10 11:39:18,142 INFO L858 garLoopResultBuilder]: For program point L156(lines 156 158) no Hoare annotation was computed. [2022-01-10 11:39:18,142 INFO L858 garLoopResultBuilder]: For program point L168(lines 168 179) no Hoare annotation was computed. [2022-01-10 11:39:18,142 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 226) no Hoare annotation was computed. [2022-01-10 11:39:18,142 INFO L858 garLoopResultBuilder]: For program point L236(lines 236 247) no Hoare annotation was computed. [2022-01-10 11:39:18,143 INFO L858 garLoopResultBuilder]: For program point L250(lines 250 265) no Hoare annotation was computed. [2022-01-10 11:39:18,143 INFO L858 garLoopResultBuilder]: For program point L308(lines 308 310) no Hoare annotation was computed. [2022-01-10 11:39:18,143 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 331) no Hoare annotation was computed. [2022-01-10 11:39:18,143 INFO L858 garLoopResultBuilder]: For program point L334(lines 334 349) no Hoare annotation was computed. [2022-01-10 11:39:18,143 INFO L858 garLoopResultBuilder]: For program point L172(lines 172 174) no Hoare annotation was computed. [2022-01-10 11:39:18,143 INFO L858 garLoopResultBuilder]: For program point L240(lines 240 242) no Hoare annotation was computed. [2022-01-10 11:39:18,143 INFO L858 garLoopResultBuilder]: For program point L252(lines 252 263) no Hoare annotation was computed. [2022-01-10 11:39:18,143 INFO L858 garLoopResultBuilder]: For program point L266(lines 266 281) no Hoare annotation was computed. [2022-01-10 11:39:18,143 INFO L858 garLoopResultBuilder]: For program point L324(lines 324 326) no Hoare annotation was computed. [2022-01-10 11:39:18,143 INFO L858 garLoopResultBuilder]: For program point L336(lines 336 347) no Hoare annotation was computed. [2022-01-10 11:39:18,143 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 365) no Hoare annotation was computed. [2022-01-10 11:39:18,144 INFO L858 garLoopResultBuilder]: For program point L256(lines 256 258) no Hoare annotation was computed. [2022-01-10 11:39:18,144 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 279) no Hoare annotation was computed. [2022-01-10 11:39:18,144 INFO L858 garLoopResultBuilder]: For program point L340(lines 340 342) no Hoare annotation was computed. [2022-01-10 11:39:18,144 INFO L858 garLoopResultBuilder]: For program point L352(lines 352 363) no Hoare annotation was computed. [2022-01-10 11:39:18,144 INFO L858 garLoopResultBuilder]: For program point L366(lines 366 381) no Hoare annotation was computed. [2022-01-10 11:39:18,144 INFO L858 garLoopResultBuilder]: For program point L272(lines 272 274) no Hoare annotation was computed. [2022-01-10 11:39:18,144 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 358) no Hoare annotation was computed. [2022-01-10 11:39:18,144 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 379) no Hoare annotation was computed. [2022-01-10 11:39:18,144 INFO L858 garLoopResultBuilder]: For program point L372(lines 372 374) no Hoare annotation was computed. [2022-01-10 11:39:18,147 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 11:39:18,150 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 11:39:18,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:39:18 BasicIcfg [2022-01-10 11:39:18,170 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 11:39:18,171 INFO L158 Benchmark]: Toolchain (without parser) took 2339.39ms. Allocated memory is still 169.9MB. Free memory was 121.4MB in the beginning and 109.0MB in the end (delta: 12.4MB). Peak memory consumption was 12.2MB. Max. memory is 8.0GB. [2022-01-10 11:39:18,171 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 169.9MB. Free memory was 138.0MB in the beginning and 138.0MB in the end (delta: 73.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 11:39:18,171 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.09ms. Allocated memory is still 169.9MB. Free memory was 121.2MB in the beginning and 146.1MB in the end (delta: -24.9MB). Peak memory consumption was 13.3MB. Max. memory is 8.0GB. [2022-01-10 11:39:18,172 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.73ms. Allocated memory is still 169.9MB. Free memory was 146.1MB in the beginning and 144.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 11:39:18,172 INFO L158 Benchmark]: Boogie Preprocessor took 30.53ms. Allocated memory is still 169.9MB. Free memory was 144.2MB in the beginning and 142.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 11:39:18,172 INFO L158 Benchmark]: RCFGBuilder took 388.59ms. Allocated memory is still 169.9MB. Free memory was 142.7MB in the beginning and 127.8MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-01-10 11:39:18,173 INFO L158 Benchmark]: IcfgTransformer took 122.68ms. Allocated memory is still 169.9MB. Free memory was 127.8MB in the beginning and 121.1MB in the end (delta: 6.7MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-01-10 11:39:18,173 INFO L158 Benchmark]: TraceAbstraction took 1407.27ms. Allocated memory is still 169.9MB. Free memory was 120.6MB in the beginning and 109.0MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 11:39:18,175 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 169.9MB. Free memory was 138.0MB in the beginning and 138.0MB in the end (delta: 73.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 339.09ms. Allocated memory is still 169.9MB. Free memory was 121.2MB in the beginning and 146.1MB in the end (delta: -24.9MB). Peak memory consumption was 13.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.73ms. Allocated memory is still 169.9MB. Free memory was 146.1MB in the beginning and 144.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.53ms. Allocated memory is still 169.9MB. Free memory was 144.2MB in the beginning and 142.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 388.59ms. Allocated memory is still 169.9MB. Free memory was 142.7MB in the beginning and 127.8MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * IcfgTransformer took 122.68ms. Allocated memory is still 169.9MB. Free memory was 127.8MB in the beginning and 121.1MB in the end (delta: 6.7MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 1407.27ms. Allocated memory is still 169.9MB. Free memory was 120.6MB in the beginning and 109.0MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. 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: 391]: 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, 78 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 207 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 207 mSDsluCounter, 1244 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 400 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 180 IncrementalHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 844 mSDtfsCounter, 180 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=6, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 25 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 42 HoareAnnotationTreeSize, 4 FomulaSimplifications, 26 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 182 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 173 ConstructedInterpolants, 0 QuantifiedInterpolants, 329 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 43/43 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: 24]: Loop Invariant Derived loop invariant: (((0bv32 == this_state && q == 2bv32) || (~bvule32(4bv32, q) && 3bv32 == this_state)) || q == 0bv32) || (2bv32 == this_state && q == 3bv32) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (~bvule32(4bv32, q) && 3bv32 == this_state) || (0bv32 == this_state && q == 0bv32) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-01-10 11:39:18,207 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...