/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/eca-rers2012/Problem13_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 11:00:02,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 11:00:02,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 11:00:02,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 11:00:02,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 11:00:02,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 11:00:02,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 11:00:02,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 11:00:02,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 11:00:02,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 11:00:02,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 11:00:02,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 11:00:02,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 11:00:02,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 11:00:02,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 11:00:02,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 11:00:02,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 11:00:02,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 11:00:02,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 11:00:02,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 11:00:02,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 11:00:02,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 11:00:02,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 11:00:02,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 11:00:02,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 11:00:02,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 11:00:02,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 11:00:02,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 11:00:02,935 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 11:00:02,958 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 11:00:02,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 11:00:02,958 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 11:00:02,958 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 11:00:02,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 11:00:02,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 11:00:02,959 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 11:00:02,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 11:00:02,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 11:00:02,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 11:00:02,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 11:00:02,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 11:00:02,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 11:00:02,960 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 11:00:02,961 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 11:00:02,961 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 11:00:02,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 11:00:02,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 11:00:02,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 11:00:02,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 11:00:02,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 11:00:02,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 11:00:02,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 11:00:02,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 11:00:02,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 11:00:02,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 11:00:02,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 11:00:02,962 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 11:00:02,963 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 11:00:02,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 11:00:02,963 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 11:00:02,963 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 11:00:02,963 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 11:00:02,963 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 11:00:03,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 11:00:03,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 11:00:03,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 11:00:03,152 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 11:00:03,153 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 11:00:03,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label30.c [2022-01-10 11:00:03,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f50898e6/d8c2b3009b6848618e6abf37304bff1a/FLAGe9ec7e629 [2022-01-10 11:00:03,767 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 11:00:03,767 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label30.c [2022-01-10 11:00:03,791 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f50898e6/d8c2b3009b6848618e6abf37304bff1a/FLAGe9ec7e629 [2022-01-10 11:00:04,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f50898e6/d8c2b3009b6848618e6abf37304bff1a [2022-01-10 11:00:04,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 11:00:04,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 11:00:04,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 11:00:04,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 11:00:04,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 11:00:04,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:00:04" (1/1) ... [2022-01-10 11:00:04,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f31506d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:00:04, skipping insertion in model container [2022-01-10 11:00:04,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:00:04" (1/1) ... [2022-01-10 11:00:04,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 11:00:04,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 11:00:04,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label30.c[2990,3003] [2022-01-10 11:00:05,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 11:00:05,258 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 11:00:05,279 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label30.c[2990,3003] [2022-01-10 11:00:05,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 11:00:05,669 INFO L208 MainTranslator]: Completed translation [2022-01-10 11:00:05,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:00:05 WrapperNode [2022-01-10 11:00:05,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 11:00:05,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 11:00:05,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 11:00:05,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 11:00:05,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:00:05" (1/1) ... [2022-01-10 11:00:05,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:00:05" (1/1) ... [2022-01-10 11:00:05,907 INFO L137 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5578 [2022-01-10 11:00:05,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 11:00:05,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 11:00:05,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 11:00:05,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 11:00:05,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:00:05" (1/1) ... [2022-01-10 11:00:05,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:00:05" (1/1) ... [2022-01-10 11:00:05,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:00:05" (1/1) ... [2022-01-10 11:00:05,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:00:05" (1/1) ... [2022-01-10 11:00:06,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:00:05" (1/1) ... [2022-01-10 11:00:06,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:00:05" (1/1) ... [2022-01-10 11:00:06,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:00:05" (1/1) ... [2022-01-10 11:00:06,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 11:00:06,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 11:00:06,160 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 11:00:06,160 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 11:00:06,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:00:05" (1/1) ... [2022-01-10 11:00:06,166 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 11:00:06,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 11:00:06,196 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 11:00:06,219 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 11:00:06,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 11:00:06,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 11:00:06,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 11:00:06,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 11:00:06,273 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 11:00:06,274 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 11:00:45,675 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 11:00:45,711 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 11:00:45,711 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 11:00:45,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:00:45 BoogieIcfgContainer [2022-01-10 11:00:45,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 11:00:45,714 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 11:00:45,714 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 11:00:45,716 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 11:00:45,717 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:00:45" (1/1) ... [2022-01-10 11:00:46,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:00:46 BasicIcfg [2022-01-10 11:00:46,924 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 11:00:46,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 11:00:46,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 11:00:46,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 11:00:46,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:00:04" (1/4) ... [2022-01-10 11:00:46,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@469ebfeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:00:46, skipping insertion in model container [2022-01-10 11:00:46,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:00:05" (2/4) ... [2022-01-10 11:00:46,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@469ebfeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:00:46, skipping insertion in model container [2022-01-10 11:00:46,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:00:45" (3/4) ... [2022-01-10 11:00:46,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@469ebfeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:00:46, skipping insertion in model container [2022-01-10 11:00:46,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:00:46" (4/4) ... [2022-01-10 11:00:46,930 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem13_label30.cTransformedIcfg [2022-01-10 11:00:46,933 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 11:00:46,934 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 11:00:46,970 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 11:00:46,976 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 11:00:46,976 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 11:00:47,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 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 11:00:47,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-10 11:00:47,004 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:00:47,004 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 11:00:47,005 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 11:00:47,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:00:47,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1680174010, now seen corresponding path program 1 times [2022-01-10 11:00:47,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:00:47,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286770997] [2022-01-10 11:00:47,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:00:47,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:00:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 11:00:47,245 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 11:00:47,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 11:00:47,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286770997] [2022-01-10 11:00:47,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286770997] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 11:00:47,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 11:00:47,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 11:00:47,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481397353] [2022-01-10 11:00:47,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 11:00:47,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 11:00:47,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 11:00:47,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 11:00:47,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 11:00:47,278 INFO L87 Difference]: Start difference. First operand has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 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 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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 11:00:49,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 11:00:51,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 11:00:53,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 11:00:56,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 11:00:58,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 11:01:00,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 11:01:02,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 11:01:04,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 11:01:07,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 11:01:09,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 11:01:11,507 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 11:01:13,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 11:01:15,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 11:01:18,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []