/usr/bin/java -ea -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/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/n.c11.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-07 10:57:47,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-07 10:57:47,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-07 10:57:47,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-07 10:57:47,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-07 10:57:47,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-07 10:57:47,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-07 10:57:47,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-07 10:57:47,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-07 10:57:47,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-07 10:57:47,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-07 10:57:47,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-07 10:57:47,090 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-07 10:57:47,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-07 10:57:47,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-07 10:57:47,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-07 10:57:47,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-07 10:57:47,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-07 10:57:47,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-07 10:57:47,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-07 10:57:47,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-07 10:57:47,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-07 10:57:47,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-04-07 10:57:47,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-07 10:57:47,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-07 10:57:47,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-07 10:57:47,106 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-04-07 10:57:47,129 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-07 10:57:47,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-07 10:57:47,129 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-07 10:57:47,129 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-07 10:57:47,130 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-07 10:57:47,130 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-07 10:57:47,130 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-07 10:57:47,130 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-07 10:57:47,130 INFO L138 SettingsManager]: * Use SBE=true [2022-04-07 10:57:47,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-07 10:57:47,131 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-07 10:57:47,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-07 10:57:47,131 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-07 10:57:47,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-07 10:57:47,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-07 10:57:47,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-07 10:57:47,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-07 10:57:47,132 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-07 10:57:47,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-07 10:57:47,132 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-07 10:57:47,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-07 10:57:47,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-07 10:57:47,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-07 10:57:47,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-07 10:57:47,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 10:57:47,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-07 10:57:47,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-07 10:57:47,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-07 10:57:47,133 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-07 10:57:47,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-07 10:57:47,133 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-07 10:57:47,133 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-07 10:57:47,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-07 10:57:47,134 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-07 10:57:47,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-07 10:57:47,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-07 10:57:47,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-07 10:57:47,344 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-07 10:57:47,345 INFO L275 PluginConnector]: CDTParser initialized [2022-04-07 10:57:47,346 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/n.c11.c [2022-04-07 10:57:47,399 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9ff406a0/8deb9f035dad4d9abdbef0b97a5eb2df/FLAGd9e3c1321 [2022-04-07 10:57:47,776 INFO L306 CDTParser]: Found 1 translation units. [2022-04-07 10:57:47,777 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c11.c [2022-04-07 10:57:47,781 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9ff406a0/8deb9f035dad4d9abdbef0b97a5eb2df/FLAGd9e3c1321 [2022-04-07 10:57:47,792 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9ff406a0/8deb9f035dad4d9abdbef0b97a5eb2df [2022-04-07 10:57:47,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-07 10:57:47,795 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-07 10:57:47,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-07 10:57:47,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-07 10:57:47,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-07 10:57:47,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 10:57:47" (1/1) ... [2022-04-07 10:57:47,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4078a5fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:57:47, skipping insertion in model container [2022-04-07 10:57:47,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 10:57:47" (1/1) ... [2022-04-07 10:57:47,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-07 10:57:47,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-07 10:57:47,928 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c11.c[317,330] [2022-04-07 10:57:47,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 10:57:47,945 INFO L203 MainTranslator]: Completed pre-run [2022-04-07 10:57:47,960 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c11.c[317,330] [2022-04-07 10:57:47,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 10:57:47,975 INFO L208 MainTranslator]: Completed translation [2022-04-07 10:57:47,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:57:47 WrapperNode [2022-04-07 10:57:47,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-07 10:57:47,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-07 10:57:47,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-07 10:57:47,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-07 10:57:47,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:57:47" (1/1) ... [2022-04-07 10:57:47,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:57:47" (1/1) ... [2022-04-07 10:57:47,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:57:47" (1/1) ... [2022-04-07 10:57:47,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:57:47" (1/1) ... [2022-04-07 10:57:48,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:57:47" (1/1) ... [2022-04-07 10:57:48,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:57:47" (1/1) ... [2022-04-07 10:57:48,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:57:47" (1/1) ... [2022-04-07 10:57:48,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-07 10:57:48,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-07 10:57:48,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-07 10:57:48,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-07 10:57:48,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:57:47" (1/1) ... [2022-04-07 10:57:48,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 10:57:48,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 10:57:48,040 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) [2022-04-07 10:57:48,042 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 [2022-04-07 10:57:48,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-07 10:57:48,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-07 10:57:48,066 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-07 10:57:48,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-07 10:57:48,066 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-07 10:57:48,066 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-07 10:57:48,066 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-07 10:57:48,066 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-07 10:57:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-07 10:57:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-07 10:57:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2022-04-07 10:57:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-07 10:57:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-07 10:57:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-07 10:57:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-07 10:57:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-07 10:57:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-07 10:57:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-07 10:57:48,106 INFO L234 CfgBuilder]: Building ICFG [2022-04-07 10:57:48,107 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-07 10:57:48,184 INFO L275 CfgBuilder]: Performing block encoding [2022-04-07 10:57:48,188 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-07 10:57:48,188 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-07 10:57:48,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 10:57:48 BoogieIcfgContainer [2022-04-07 10:57:48,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-07 10:57:48,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-07 10:57:48,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-07 10:57:48,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-07 10:57:48,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.04 10:57:47" (1/3) ... [2022-04-07 10:57:48,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7f58f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 10:57:48, skipping insertion in model container [2022-04-07 10:57:48,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:57:47" (2/3) ... [2022-04-07 10:57:48,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7f58f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 10:57:48, skipping insertion in model container [2022-04-07 10:57:48,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 10:57:48" (3/3) ... [2022-04-07 10:57:48,196 INFO L111 eAbstractionObserver]: Analyzing ICFG n.c11.c [2022-04-07 10:57:48,199 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-07 10:57:48,199 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-07 10:57:48,239 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-07 10:57:48,244 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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 [2022-04-07 10:57:48,244 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-07 10:57:48,267 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-07 10:57:48,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-07 10:57:48,269 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 10:57:48,269 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 10:57:48,270 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 10:57:48,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 10:57:48,273 INFO L85 PathProgramCache]: Analyzing trace with hash 536722933, now seen corresponding path program 1 times [2022-04-07 10:57:48,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 10:57:48,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410615157] [2022-04-07 10:57:48,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 10:57:48,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 10:57:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 10:57:48,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 10:57:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 10:57:48,411 INFO L290 TraceCheckUtils]: 0: Hoare triple {29#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call #Ultimate.allocInit(12, 3); {24#true} is VALID [2022-04-07 10:57:48,412 INFO L290 TraceCheckUtils]: 1: Hoare triple {24#true} assume true; {24#true} is VALID [2022-04-07 10:57:48,412 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {24#true} {24#true} #44#return; {24#true} is VALID [2022-04-07 10:57:48,428 INFO L272 TraceCheckUtils]: 0: Hoare triple {24#true} call ULTIMATE.init(); {29#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 10:57:48,428 INFO L290 TraceCheckUtils]: 1: Hoare triple {29#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call #Ultimate.allocInit(12, 3); {24#true} is VALID [2022-04-07 10:57:48,429 INFO L290 TraceCheckUtils]: 2: Hoare triple {24#true} assume true; {24#true} is VALID [2022-04-07 10:57:48,429 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {24#true} {24#true} #44#return; {24#true} is VALID [2022-04-07 10:57:48,429 INFO L272 TraceCheckUtils]: 4: Hoare triple {24#true} call #t~ret6 := main(); {24#true} is VALID [2022-04-07 10:57:48,429 INFO L290 TraceCheckUtils]: 5: Hoare triple {24#true} havoc ~a~0;~len~0 := 0;havoc ~i~0; {24#true} is VALID [2022-04-07 10:57:48,430 INFO L290 TraceCheckUtils]: 6: Hoare triple {24#true} assume !true; {25#false} is VALID [2022-04-07 10:57:48,430 INFO L272 TraceCheckUtils]: 7: Hoare triple {25#false} call __VERIFIER_assert((if ~len~0 % 4294967296 >= 0 && ~len~0 % 4294967296 < 5 then 1 else 0)); {25#false} is VALID [2022-04-07 10:57:48,430 INFO L290 TraceCheckUtils]: 8: Hoare triple {25#false} ~cond := #in~cond; {25#false} is VALID [2022-04-07 10:57:48,430 INFO L290 TraceCheckUtils]: 9: Hoare triple {25#false} assume 0 == ~cond; {25#false} is VALID [2022-04-07 10:57:48,430 INFO L290 TraceCheckUtils]: 10: Hoare triple {25#false} assume !false; {25#false} is VALID [2022-04-07 10:57:48,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 10:57:48,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 10:57:48,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410615157] [2022-04-07 10:57:48,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410615157] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 10:57:48,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 10:57:48,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-07 10:57:48,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395184364] [2022-04-07 10:57:48,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 10:57:48,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-07 10:57:48,437 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 10:57:48,439 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:48,451 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 10:57:48,451 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-07 10:57:48,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 10:57:48,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-07 10:57:48,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-07 10:57:48,465 INFO L87 Difference]: Start difference. First operand has 21 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:48,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 10:57:48,543 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-04-07 10:57:48,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-07 10:57:48,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-07 10:57:48,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 10:57:48,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:48,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2022-04-07 10:57:48,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:48,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2022-04-07 10:57:48,564 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 37 transitions. [2022-04-07 10:57:48,621 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 10:57:48,629 INFO L225 Difference]: With dead ends: 33 [2022-04-07 10:57:48,629 INFO L226 Difference]: Without dead ends: 14 [2022-04-07 10:57:48,632 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-07 10:57:48,637 INFO L913 BasicCegarLoop]: 21 mSDtfsCounter, 13 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 10:57:48,638 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 24 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 10:57:48,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-04-07 10:57:48,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-04-07 10:57:48,671 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 10:57:48,672 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14 states. Second operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:48,672 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:48,673 INFO L87 Difference]: Start difference. First operand 14 states. Second operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:48,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 10:57:48,679 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-04-07 10:57:48,680 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-04-07 10:57:48,680 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 10:57:48,680 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 10:57:48,680 INFO L74 IsIncluded]: Start isIncluded. First operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 14 states. [2022-04-07 10:57:48,681 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 14 states. [2022-04-07 10:57:48,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 10:57:48,684 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-04-07 10:57:48,684 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-04-07 10:57:48,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 10:57:48,685 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 10:57:48,685 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 10:57:48,685 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 10:57:48,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:48,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-04-07 10:57:48,687 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-04-07 10:57:48,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 10:57:48,687 INFO L478 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-04-07 10:57:48,688 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:48,688 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-04-07 10:57:48,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-07 10:57:48,690 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 10:57:48,691 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 10:57:48,693 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-07 10:57:48,694 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 10:57:48,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 10:57:48,701 INFO L85 PathProgramCache]: Analyzing trace with hash 526564202, now seen corresponding path program 1 times [2022-04-07 10:57:48,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 10:57:48,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426173353] [2022-04-07 10:57:48,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 10:57:48,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 10:57:48,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 10:57:48,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 10:57:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 10:57:48,843 INFO L290 TraceCheckUtils]: 0: Hoare triple {131#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call #Ultimate.allocInit(12, 3); {123#true} is VALID [2022-04-07 10:57:48,843 INFO L290 TraceCheckUtils]: 1: Hoare triple {123#true} assume true; {123#true} is VALID [2022-04-07 10:57:48,843 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {123#true} {123#true} #44#return; {123#true} is VALID [2022-04-07 10:57:48,844 INFO L272 TraceCheckUtils]: 0: Hoare triple {123#true} call ULTIMATE.init(); {131#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 10:57:48,844 INFO L290 TraceCheckUtils]: 1: Hoare triple {131#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call #Ultimate.allocInit(12, 3); {123#true} is VALID [2022-04-07 10:57:48,844 INFO L290 TraceCheckUtils]: 2: Hoare triple {123#true} assume true; {123#true} is VALID [2022-04-07 10:57:48,845 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {123#true} {123#true} #44#return; {123#true} is VALID [2022-04-07 10:57:48,845 INFO L272 TraceCheckUtils]: 4: Hoare triple {123#true} call #t~ret6 := main(); {123#true} is VALID [2022-04-07 10:57:48,845 INFO L290 TraceCheckUtils]: 5: Hoare triple {123#true} havoc ~a~0;~len~0 := 0;havoc ~i~0; {128#(= main_~len~0 0)} is VALID [2022-04-07 10:57:48,845 INFO L290 TraceCheckUtils]: 6: Hoare triple {128#(= main_~len~0 0)} assume !(0 != #t~nondet4 % 256);havoc #t~nondet4; {128#(= main_~len~0 0)} is VALID [2022-04-07 10:57:48,846 INFO L272 TraceCheckUtils]: 7: Hoare triple {128#(= main_~len~0 0)} call __VERIFIER_assert((if ~len~0 % 4294967296 >= 0 && ~len~0 % 4294967296 < 5 then 1 else 0)); {129#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-07 10:57:48,847 INFO L290 TraceCheckUtils]: 8: Hoare triple {129#(not (= |__VERIFIER_assert_#in~cond| 0))} ~cond := #in~cond; {130#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-07 10:57:48,847 INFO L290 TraceCheckUtils]: 9: Hoare triple {130#(not (= __VERIFIER_assert_~cond 0))} assume 0 == ~cond; {124#false} is VALID [2022-04-07 10:57:48,847 INFO L290 TraceCheckUtils]: 10: Hoare triple {124#false} assume !false; {124#false} is VALID [2022-04-07 10:57:48,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 10:57:48,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 10:57:48,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426173353] [2022-04-07 10:57:48,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426173353] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 10:57:48,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 10:57:48,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 10:57:48,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594425576] [2022-04-07 10:57:48,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 10:57:48,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-07 10:57:48,850 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 10:57:48,850 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:48,863 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 10:57:48,863 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 10:57:48,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 10:57:48,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 10:57:48,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 10:57:48,865 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:49,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 10:57:49,004 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-04-07 10:57:49,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 10:57:49,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-07 10:57:49,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 10:57:49,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:49,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 32 transitions. [2022-04-07 10:57:49,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:49,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 32 transitions. [2022-04-07 10:57:49,009 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 32 transitions. [2022-04-07 10:57:49,037 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 10:57:49,039 INFO L225 Difference]: With dead ends: 28 [2022-04-07 10:57:49,039 INFO L226 Difference]: Without dead ends: 17 [2022-04-07 10:57:49,042 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 10:57:49,044 INFO L913 BasicCegarLoop]: 12 mSDtfsCounter, 16 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 10:57:49,044 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 29 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 10:57:49,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-04-07 10:57:49,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2022-04-07 10:57:49,049 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 10:57:49,050 INFO L82 GeneralOperation]: Start isEquivalent. First operand 17 states. Second operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:49,050 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:49,050 INFO L87 Difference]: Start difference. First operand 17 states. Second operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:49,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 10:57:49,051 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-04-07 10:57:49,052 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-04-07 10:57:49,052 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 10:57:49,052 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 10:57:49,052 INFO L74 IsIncluded]: Start isIncluded. First operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 17 states. [2022-04-07 10:57:49,053 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 17 states. [2022-04-07 10:57:49,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 10:57:49,054 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-04-07 10:57:49,054 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-04-07 10:57:49,054 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 10:57:49,055 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 10:57:49,055 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 10:57:49,055 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 10:57:49,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:49,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-04-07 10:57:49,057 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11 [2022-04-07 10:57:49,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 10:57:49,057 INFO L478 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-04-07 10:57:49,058 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:49,058 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-04-07 10:57:49,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-07 10:57:49,058 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 10:57:49,058 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 10:57:49,058 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-07 10:57:49,058 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 10:57:49,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 10:57:49,059 INFO L85 PathProgramCache]: Analyzing trace with hash -234031063, now seen corresponding path program 1 times [2022-04-07 10:57:49,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 10:57:49,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338671249] [2022-04-07 10:57:49,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 10:57:49,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 10:57:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 10:57:49,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 10:57:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 10:57:49,150 INFO L290 TraceCheckUtils]: 0: Hoare triple {248#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call #Ultimate.allocInit(12, 3); {239#true} is VALID [2022-04-07 10:57:49,150 INFO L290 TraceCheckUtils]: 1: Hoare triple {239#true} assume true; {239#true} is VALID [2022-04-07 10:57:49,150 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {239#true} {239#true} #44#return; {239#true} is VALID [2022-04-07 10:57:49,151 INFO L272 TraceCheckUtils]: 0: Hoare triple {239#true} call ULTIMATE.init(); {248#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 10:57:49,151 INFO L290 TraceCheckUtils]: 1: Hoare triple {248#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call #Ultimate.allocInit(12, 3); {239#true} is VALID [2022-04-07 10:57:49,151 INFO L290 TraceCheckUtils]: 2: Hoare triple {239#true} assume true; {239#true} is VALID [2022-04-07 10:57:49,151 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {239#true} {239#true} #44#return; {239#true} is VALID [2022-04-07 10:57:49,152 INFO L272 TraceCheckUtils]: 4: Hoare triple {239#true} call #t~ret6 := main(); {239#true} is VALID [2022-04-07 10:57:49,152 INFO L290 TraceCheckUtils]: 5: Hoare triple {239#true} havoc ~a~0;~len~0 := 0;havoc ~i~0; {244#(= main_~len~0 0)} is VALID [2022-04-07 10:57:49,152 INFO L290 TraceCheckUtils]: 6: Hoare triple {244#(= main_~len~0 0)} assume !!(0 != #t~nondet4 % 256);havoc #t~nondet4; {244#(= main_~len~0 0)} is VALID [2022-04-07 10:57:49,153 INFO L290 TraceCheckUtils]: 7: Hoare triple {244#(= main_~len~0 0)} assume !(4 == ~len~0 % 4294967296); {244#(= main_~len~0 0)} is VALID [2022-04-07 10:57:49,153 INFO L290 TraceCheckUtils]: 8: Hoare triple {244#(= main_~len~0 0)} ~a~0 := ~a~0[(if ~len~0 % 4294967296 % 4294967296 <= 2147483647 then ~len~0 % 4294967296 % 4294967296 else ~len~0 % 4294967296 % 4294967296 - 4294967296) := 0];#t~post5 := ~len~0;~len~0 := 1 + #t~post5;havoc #t~post5; {245#(and (<= main_~len~0 1) (not (<= (+ (div main_~len~0 4294967296) 1) 0)))} is VALID [2022-04-07 10:57:49,154 INFO L290 TraceCheckUtils]: 9: Hoare triple {245#(and (<= main_~len~0 1) (not (<= (+ (div main_~len~0 4294967296) 1) 0)))} assume !(0 != #t~nondet4 % 256);havoc #t~nondet4; {245#(and (<= main_~len~0 1) (not (<= (+ (div main_~len~0 4294967296) 1) 0)))} is VALID [2022-04-07 10:57:49,155 INFO L272 TraceCheckUtils]: 10: Hoare triple {245#(and (<= main_~len~0 1) (not (<= (+ (div main_~len~0 4294967296) 1) 0)))} call __VERIFIER_assert((if ~len~0 % 4294967296 >= 0 && ~len~0 % 4294967296 < 5 then 1 else 0)); {246#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-07 10:57:49,156 INFO L290 TraceCheckUtils]: 11: Hoare triple {246#(not (= |__VERIFIER_assert_#in~cond| 0))} ~cond := #in~cond; {247#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-07 10:57:49,156 INFO L290 TraceCheckUtils]: 12: Hoare triple {247#(not (= __VERIFIER_assert_~cond 0))} assume 0 == ~cond; {240#false} is VALID [2022-04-07 10:57:49,156 INFO L290 TraceCheckUtils]: 13: Hoare triple {240#false} assume !false; {240#false} is VALID [2022-04-07 10:57:49,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 10:57:49,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 10:57:49,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338671249] [2022-04-07 10:57:49,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338671249] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-07 10:57:49,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042545282] [2022-04-07 10:57:49,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 10:57:49,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 10:57:49,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 10:57:49,159 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-07 10:57:49,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-07 10:57:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 10:57:49,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-07 10:57:49,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 10:57:49,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 10:57:49,309 INFO L272 TraceCheckUtils]: 0: Hoare triple {239#true} call ULTIMATE.init(); {239#true} is VALID [2022-04-07 10:57:49,309 INFO L290 TraceCheckUtils]: 1: Hoare triple {239#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call #Ultimate.allocInit(12, 3); {239#true} is VALID [2022-04-07 10:57:49,309 INFO L290 TraceCheckUtils]: 2: Hoare triple {239#true} assume true; {239#true} is VALID [2022-04-07 10:57:49,309 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {239#true} {239#true} #44#return; {239#true} is VALID [2022-04-07 10:57:49,309 INFO L272 TraceCheckUtils]: 4: Hoare triple {239#true} call #t~ret6 := main(); {239#true} is VALID [2022-04-07 10:57:49,310 INFO L290 TraceCheckUtils]: 5: Hoare triple {239#true} havoc ~a~0;~len~0 := 0;havoc ~i~0; {244#(= main_~len~0 0)} is VALID [2022-04-07 10:57:49,310 INFO L290 TraceCheckUtils]: 6: Hoare triple {244#(= main_~len~0 0)} assume !!(0 != #t~nondet4 % 256);havoc #t~nondet4; {244#(= main_~len~0 0)} is VALID [2022-04-07 10:57:49,310 INFO L290 TraceCheckUtils]: 7: Hoare triple {244#(= main_~len~0 0)} assume !(4 == ~len~0 % 4294967296); {244#(= main_~len~0 0)} is VALID [2022-04-07 10:57:49,311 INFO L290 TraceCheckUtils]: 8: Hoare triple {244#(= main_~len~0 0)} ~a~0 := ~a~0[(if ~len~0 % 4294967296 % 4294967296 <= 2147483647 then ~len~0 % 4294967296 % 4294967296 else ~len~0 % 4294967296 % 4294967296 - 4294967296) := 0];#t~post5 := ~len~0;~len~0 := 1 + #t~post5;havoc #t~post5; {276#(= main_~len~0 1)} is VALID [2022-04-07 10:57:49,311 INFO L290 TraceCheckUtils]: 9: Hoare triple {276#(= main_~len~0 1)} assume !(0 != #t~nondet4 % 256);havoc #t~nondet4; {276#(= main_~len~0 1)} is VALID [2022-04-07 10:57:49,312 INFO L272 TraceCheckUtils]: 10: Hoare triple {276#(= main_~len~0 1)} call __VERIFIER_assert((if ~len~0 % 4294967296 >= 0 && ~len~0 % 4294967296 < 5 then 1 else 0)); {283#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-07 10:57:49,312 INFO L290 TraceCheckUtils]: 11: Hoare triple {283#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {287#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-07 10:57:49,312 INFO L290 TraceCheckUtils]: 12: Hoare triple {287#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {240#false} is VALID [2022-04-07 10:57:49,313 INFO L290 TraceCheckUtils]: 13: Hoare triple {240#false} assume !false; {240#false} is VALID [2022-04-07 10:57:49,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 10:57:49,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-07 10:57:49,410 INFO L290 TraceCheckUtils]: 13: Hoare triple {240#false} assume !false; {240#false} is VALID [2022-04-07 10:57:49,411 INFO L290 TraceCheckUtils]: 12: Hoare triple {287#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {240#false} is VALID [2022-04-07 10:57:49,411 INFO L290 TraceCheckUtils]: 11: Hoare triple {283#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {287#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-07 10:57:49,412 INFO L272 TraceCheckUtils]: 10: Hoare triple {303#(< (mod main_~len~0 4294967296) 5)} call __VERIFIER_assert((if ~len~0 % 4294967296 >= 0 && ~len~0 % 4294967296 < 5 then 1 else 0)); {283#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-07 10:57:49,412 INFO L290 TraceCheckUtils]: 9: Hoare triple {303#(< (mod main_~len~0 4294967296) 5)} assume !(0 != #t~nondet4 % 256);havoc #t~nondet4; {303#(< (mod main_~len~0 4294967296) 5)} is VALID [2022-04-07 10:57:49,413 INFO L290 TraceCheckUtils]: 8: Hoare triple {310#(< (mod (+ main_~len~0 1) 4294967296) 5)} ~a~0 := ~a~0[(if ~len~0 % 4294967296 % 4294967296 <= 2147483647 then ~len~0 % 4294967296 % 4294967296 else ~len~0 % 4294967296 % 4294967296 - 4294967296) := 0];#t~post5 := ~len~0;~len~0 := 1 + #t~post5;havoc #t~post5; {303#(< (mod main_~len~0 4294967296) 5)} is VALID [2022-04-07 10:57:49,413 INFO L290 TraceCheckUtils]: 7: Hoare triple {310#(< (mod (+ main_~len~0 1) 4294967296) 5)} assume !(4 == ~len~0 % 4294967296); {310#(< (mod (+ main_~len~0 1) 4294967296) 5)} is VALID [2022-04-07 10:57:49,413 INFO L290 TraceCheckUtils]: 6: Hoare triple {310#(< (mod (+ main_~len~0 1) 4294967296) 5)} assume !!(0 != #t~nondet4 % 256);havoc #t~nondet4; {310#(< (mod (+ main_~len~0 1) 4294967296) 5)} is VALID [2022-04-07 10:57:49,414 INFO L290 TraceCheckUtils]: 5: Hoare triple {239#true} havoc ~a~0;~len~0 := 0;havoc ~i~0; {310#(< (mod (+ main_~len~0 1) 4294967296) 5)} is VALID [2022-04-07 10:57:49,414 INFO L272 TraceCheckUtils]: 4: Hoare triple {239#true} call #t~ret6 := main(); {239#true} is VALID [2022-04-07 10:57:49,414 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {239#true} {239#true} #44#return; {239#true} is VALID [2022-04-07 10:57:49,414 INFO L290 TraceCheckUtils]: 2: Hoare triple {239#true} assume true; {239#true} is VALID [2022-04-07 10:57:49,414 INFO L290 TraceCheckUtils]: 1: Hoare triple {239#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call #Ultimate.allocInit(12, 3); {239#true} is VALID [2022-04-07 10:57:49,414 INFO L272 TraceCheckUtils]: 0: Hoare triple {239#true} call ULTIMATE.init(); {239#true} is VALID [2022-04-07 10:57:49,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 10:57:49,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042545282] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-07 10:57:49,415 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-07 10:57:49,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 12 [2022-04-07 10:57:49,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30097256] [2022-04-07 10:57:49,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-07 10:57:49,416 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-07 10:57:49,416 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 10:57:49,416 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:49,433 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 10:57:49,433 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-07 10:57:49,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 10:57:49,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-07 10:57:49,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-04-07 10:57:49,434 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:49,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 10:57:49,625 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2022-04-07 10:57:49,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-07 10:57:49,626 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-04-07 10:57:49,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 10:57:49,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:49,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 37 transitions. [2022-04-07 10:57:49,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:49,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 37 transitions. [2022-04-07 10:57:49,628 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 9 states and 37 transitions. [2022-04-07 10:57:49,664 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 10:57:49,665 INFO L225 Difference]: With dead ends: 30 [2022-04-07 10:57:49,665 INFO L226 Difference]: Without dead ends: 0 [2022-04-07 10:57:49,665 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-04-07 10:57:49,666 INFO L913 BasicCegarLoop]: 10 mSDtfsCounter, 28 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-07 10:57:49,667 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 37 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-07 10:57:49,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-07 10:57:49,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-07 10:57:49,667 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 10:57:49,667 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second 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) [2022-04-07 10:57:49,667 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second 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) [2022-04-07 10:57:49,668 INFO L87 Difference]: Start difference. First operand 0 states. Second 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) [2022-04-07 10:57:49,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 10:57:49,668 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-07 10:57:49,668 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 10:57:49,668 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 10:57:49,668 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 10:57:49,668 INFO L74 IsIncluded]: Start isIncluded. First 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) Second operand 0 states. [2022-04-07 10:57:49,668 INFO L87 Difference]: Start difference. First 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) Second operand 0 states. [2022-04-07 10:57:49,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 10:57:49,668 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-07 10:57:49,669 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 10:57:49,669 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 10:57:49,669 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 10:57:49,669 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 10:57:49,669 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 10:57:49,669 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) [2022-04-07 10:57:49,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-07 10:57:49,669 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-04-07 10:57:49,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 10:57:49,669 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-07 10:57:49,669 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 10:57:49,670 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 10:57:49,670 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 10:57:49,672 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-07 10:57:49,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-07 10:57:49,887 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 10:57:49,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-07 10:57:49,922 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2022-04-07 10:57:49,922 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2022-04-07 10:57:49,922 INFO L882 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2022-04-07 10:57:49,922 INFO L882 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2022-04-07 10:57:49,923 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 14 34) the Hoare annotation is: true [2022-04-07 10:57:49,923 INFO L882 garLoopResultBuilder]: For program point mainEXIT(lines 14 34) no Hoare annotation was computed. [2022-04-07 10:57:49,923 INFO L882 garLoopResultBuilder]: For program point L23(lines 23 24) no Hoare annotation was computed. [2022-04-07 10:57:49,923 INFO L882 garLoopResultBuilder]: For program point L23-2(lines 23 24) no Hoare annotation was computed. [2022-04-07 10:57:49,923 INFO L878 garLoopResultBuilder]: At program point L21-2(lines 21 29) the Hoare annotation is: (< (mod main_~len~0 4294967296) 5) [2022-04-07 10:57:49,923 INFO L878 garLoopResultBuilder]: At program point L21-3(lines 21 29) the Hoare annotation is: (< (mod main_~len~0 4294967296) 5) [2022-04-07 10:57:49,923 INFO L882 garLoopResultBuilder]: For program point mainFINAL(lines 14 34) no Hoare annotation was computed. [2022-04-07 10:57:49,923 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-04-07 10:57:49,923 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-04-07 10:57:49,923 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-04-07 10:57:49,923 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-04-07 10:57:49,923 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-04-07 10:57:49,923 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-07 10:57:49,924 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-04-07 10:57:49,924 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2022-04-07 10:57:49,924 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 5 10) no Hoare annotation was computed. [2022-04-07 10:57:49,924 INFO L882 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-04-07 10:57:49,924 INFO L882 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2022-04-07 10:57:49,924 INFO L882 garLoopResultBuilder]: For program point L6-2(lines 5 10) no Hoare annotation was computed. [2022-04-07 10:57:49,924 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2022-04-07 10:57:49,941 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-04-07 10:57:49,941 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-07 10:57:49,944 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-07 10:57:49,944 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-07 10:57:49,947 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-04-07 10:57:49,947 WARN L170 areAnnotationChecker]: reach_errorFINAL has no Hoare annotation [2022-04-07 10:57:49,947 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-07 10:57:49,947 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-07 10:57:49,948 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2022-04-07 10:57:49,949 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-04-07 10:57:49,949 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-04-07 10:57:49,949 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-07 10:57:49,949 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-07 10:57:49,949 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2022-04-07 10:57:49,949 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2022-04-07 10:57:49,949 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2022-04-07 10:57:49,949 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-07 10:57:49,949 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-07 10:57:49,949 WARN L170 areAnnotationChecker]: L6-2 has no Hoare annotation [2022-04-07 10:57:49,949 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2022-04-07 10:57:49,949 WARN L170 areAnnotationChecker]: L23-2 has no Hoare annotation [2022-04-07 10:57:49,949 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-07 10:57:49,949 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-07 10:57:49,949 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-07 10:57:49,949 INFO L163 areAnnotationChecker]: CFG has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-07 10:57:49,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 10:57:49 BoogieIcfgContainer [2022-04-07 10:57:49,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-07 10:57:49,955 INFO L158 Benchmark]: Toolchain (without parser) took 2160.15ms. Allocated memory was 191.9MB in the beginning and 254.8MB in the end (delta: 62.9MB). Free memory was 132.6MB in the beginning and 101.7MB in the end (delta: 30.9MB). Peak memory consumption was 94.2MB. Max. memory is 8.0GB. [2022-04-07 10:57:49,955 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 191.9MB. Free memory was 148.8MB in the beginning and 148.6MB in the end (delta: 147.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-07 10:57:49,955 INFO L158 Benchmark]: CACSL2BoogieTranslator took 179.80ms. Allocated memory was 191.9MB in the beginning and 254.8MB in the end (delta: 62.9MB). Free memory was 132.3MB in the beginning and 228.4MB in the end (delta: -96.1MB). Peak memory consumption was 17.4MB. Max. memory is 8.0GB. [2022-04-07 10:57:49,956 INFO L158 Benchmark]: Boogie Preprocessor took 38.95ms. Allocated memory is still 254.8MB. Free memory was 228.4MB in the beginning and 226.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-07 10:57:49,956 INFO L158 Benchmark]: RCFGBuilder took 173.70ms. Allocated memory is still 254.8MB. Free memory was 226.5MB in the beginning and 214.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-07 10:57:49,956 INFO L158 Benchmark]: TraceAbstraction took 1762.75ms. Allocated memory is still 254.8MB. Free memory was 214.4MB in the beginning and 101.7MB in the end (delta: 112.7MB). Peak memory consumption was 113.2MB. Max. memory is 8.0GB. [2022-04-07 10:57:49,957 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 191.9MB. Free memory was 148.8MB in the beginning and 148.6MB in the end (delta: 147.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 179.80ms. Allocated memory was 191.9MB in the beginning and 254.8MB in the end (delta: 62.9MB). Free memory was 132.3MB in the beginning and 228.4MB in the end (delta: -96.1MB). Peak memory consumption was 17.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.95ms. Allocated memory is still 254.8MB. Free memory was 228.4MB in the beginning and 226.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 173.70ms. Allocated memory is still 254.8MB. Free memory was 226.5MB in the beginning and 214.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1762.75ms. Allocated memory is still 254.8MB. Free memory was 214.4MB in the beginning and 101.7MB in the end (delta: 112.7MB). Peak memory consumption was 113.2MB. 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: 7]: 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 5 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 57 mSDsluCounter, 90 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 47 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 43 mSDtfsCounter, 92 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 13 PreInvPairs, 21 NumberOfFragments, 21 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 40 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 165 SizeOfPredicates, 1 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 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: 21]: Loop Invariant Derived loop invariant: len % 4294967296 < 5 RESULT: Ultimate proved your program to be correct! [2022-04-07 10:57:49,994 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...