/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/loop-lit/css2003.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-27 10:51:00,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-27 10:51:00,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-27 10:51:00,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-27 10:51:00,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-27 10:51:00,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-27 10:51:00,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-27 10:51:00,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-27 10:51:00,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-27 10:51:00,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-27 10:51:00,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-27 10:51:00,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-27 10:51:00,228 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-27 10:51:00,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-27 10:51:00,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-27 10:51:00,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-27 10:51:00,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-27 10:51:00,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-27 10:51:00,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-27 10:51:00,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-27 10:51:00,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-27 10:51:00,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-27 10:51:00,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-04-27 10:51:00,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-27 10:51:00,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-27 10:51:00,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-27 10:51:00,250 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 [2022-04-27 10:51:00,275 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-27 10:51:00,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-27 10:51:00,276 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-27 10:51:00,276 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-27 10:51:00,276 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-27 10:51:00,276 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-27 10:51:00,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-27 10:51:00,277 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-27 10:51:00,277 INFO L138 SettingsManager]: * Use SBE=true [2022-04-27 10:51:00,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-27 10:51:00,277 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-27 10:51:00,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-27 10:51:00,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-27 10:51:00,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-27 10:51:00,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-27 10:51:00,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-27 10:51:00,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-27 10:51:00,278 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-27 10:51:00,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-27 10:51:00,279 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-27 10:51:00,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-27 10:51:00,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-27 10:51:00,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-27 10:51:00,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-27 10:51:00,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 10:51:00,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-27 10:51:00,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-27 10:51:00,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-27 10:51:00,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-27 10:51:00,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-27 10:51:00,280 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-04-27 10:51:00,280 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-27 10:51:00,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-27 10:51:00,281 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-27 10:51:00,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-27 10:51:00,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-27 10:51:00,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-27 10:51:00,479 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-27 10:51:00,479 INFO L275 PluginConnector]: CDTParser initialized [2022-04-27 10:51:00,480 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/css2003.i [2022-04-27 10:51:00,546 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3bca5ed4/06b316e16d924f6b87595f8c63bcd123/FLAG75bd50e22 [2022-04-27 10:51:00,856 INFO L306 CDTParser]: Found 1 translation units. [2022-04-27 10:51:00,857 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/css2003.i [2022-04-27 10:51:00,861 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3bca5ed4/06b316e16d924f6b87595f8c63bcd123/FLAG75bd50e22 [2022-04-27 10:51:01,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3bca5ed4/06b316e16d924f6b87595f8c63bcd123 [2022-04-27 10:51:01,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-27 10:51:01,290 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-27 10:51:01,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-27 10:51:01,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-27 10:51:01,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-27 10:51:01,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 10:51:01" (1/1) ... [2022-04-27 10:51:01,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39f463da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:51:01, skipping insertion in model container [2022-04-27 10:51:01,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 10:51:01" (1/1) ... [2022-04-27 10:51:01,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-27 10:51:01,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-27 10:51:01,434 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/css2003.i[895,908] [2022-04-27 10:51:01,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 10:51:01,465 INFO L203 MainTranslator]: Completed pre-run [2022-04-27 10:51:01,476 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/css2003.i[895,908] [2022-04-27 10:51:01,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 10:51:01,493 INFO L208 MainTranslator]: Completed translation [2022-04-27 10:51:01,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:51:01 WrapperNode [2022-04-27 10:51:01,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-27 10:51:01,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-27 10:51:01,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-27 10:51:01,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-27 10:51:01,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:51:01" (1/1) ... [2022-04-27 10:51:01,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:51:01" (1/1) ... [2022-04-27 10:51:01,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:51:01" (1/1) ... [2022-04-27 10:51:01,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:51:01" (1/1) ... [2022-04-27 10:51:01,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:51:01" (1/1) ... [2022-04-27 10:51:01,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:51:01" (1/1) ... [2022-04-27 10:51:01,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:51:01" (1/1) ... [2022-04-27 10:51:01,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-27 10:51:01,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-27 10:51:01,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-27 10:51:01,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-27 10:51:01,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:51:01" (1/1) ... [2022-04-27 10:51:01,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 10:51:01,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 10:51:01,549 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) [2022-04-27 10:51:01,556 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 [2022-04-27 10:51:01,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-27 10:51:01,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-27 10:51:01,577 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-27 10:51:01,578 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-27 10:51:01,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-27 10:51:01,578 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-27 10:51:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-27 10:51:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-27 10:51:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-04-27 10:51:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-04-27 10:51:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-27 10:51:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-27 10:51:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-27 10:51:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-27 10:51:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-27 10:51:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-27 10:51:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-27 10:51:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-27 10:51:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-27 10:51:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-27 10:51:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-27 10:51:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-27 10:51:01,629 INFO L234 CfgBuilder]: Building ICFG [2022-04-27 10:51:01,630 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-27 10:51:01,735 INFO L275 CfgBuilder]: Performing block encoding [2022-04-27 10:51:01,742 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-27 10:51:01,742 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-27 10:51:01,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 10:51:01 BoogieIcfgContainer [2022-04-27 10:51:01,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-27 10:51:01,745 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-27 10:51:01,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-27 10:51:01,749 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-27 10:51:01,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.04 10:51:01" (1/3) ... [2022-04-27 10:51:01,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3200d4c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 10:51:01, skipping insertion in model container [2022-04-27 10:51:01,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:51:01" (2/3) ... [2022-04-27 10:51:01,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3200d4c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 10:51:01, skipping insertion in model container [2022-04-27 10:51:01,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 10:51:01" (3/3) ... [2022-04-27 10:51:01,751 INFO L111 eAbstractionObserver]: Analyzing ICFG css2003.i [2022-04-27 10:51:01,763 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-27 10:51:01,764 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-27 10:51:01,828 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-27 10:51:01,851 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6d0a3e58, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@9b60dd6 [2022-04-27 10:51:01,851 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-27 10:51:01,858 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 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) [2022-04-27 10:51:01,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-27 10:51:01,865 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 10:51:01,865 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 10:51:01,866 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 10:51:01,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 10:51:01,887 INFO L85 PathProgramCache]: Analyzing trace with hash 255759161, now seen corresponding path program 1 times [2022-04-27 10:51:01,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 10:51:01,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161088661] [2022-04-27 10:51:01,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 10:51:01,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 10:51:02,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 10:51:02,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-27 10:51:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 10:51:02,227 INFO L290 TraceCheckUtils]: 0: Hoare triple {33#(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(9, 2); {23#true} is VALID [2022-04-27 10:51:02,228 INFO L290 TraceCheckUtils]: 1: Hoare triple {23#true} assume true; {23#true} is VALID [2022-04-27 10:51:02,228 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {23#true} {23#true} #54#return; {23#true} is VALID [2022-04-27 10:51:02,231 INFO L272 TraceCheckUtils]: 0: Hoare triple {23#true} call ULTIMATE.init(); {33#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-27 10:51:02,231 INFO L290 TraceCheckUtils]: 1: Hoare triple {33#(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(9, 2); {23#true} is VALID [2022-04-27 10:51:02,232 INFO L290 TraceCheckUtils]: 2: Hoare triple {23#true} assume true; {23#true} is VALID [2022-04-27 10:51:02,232 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {23#true} {23#true} #54#return; {23#true} is VALID [2022-04-27 10:51:02,232 INFO L272 TraceCheckUtils]: 4: Hoare triple {23#true} call #t~ret2 := main(); {23#true} is VALID [2022-04-27 10:51:02,233 INFO L290 TraceCheckUtils]: 5: Hoare triple {23#true} havoc ~i~0;havoc ~j~0;havoc ~k~0;~i~0 := 1;~j~0 := 1;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~k~0 := #t~nondet1;havoc #t~nondet1; {28#(= (+ (- 1) main_~i~0) 0)} is VALID [2022-04-27 10:51:02,235 INFO L290 TraceCheckUtils]: 6: Hoare triple {28#(= (+ (- 1) main_~i~0) 0)} assume !!(0 <= ~k~0 && ~k~0 <= 1); {29#(and (<= 0 main_~k~0) (<= main_~k~0 1) (= (+ (- 1) main_~i~0) 0))} is VALID [2022-04-27 10:51:02,237 INFO L290 TraceCheckUtils]: 7: Hoare triple {29#(and (<= 0 main_~k~0) (<= main_~k~0 1) (= (+ (- 1) main_~i~0) 0))} assume !!(~i~0 < 1000000);~i~0 := 1 + ~i~0;~j~0 := ~j~0 + ~k~0;~k~0 := ~k~0 - 1; {30#(and (<= 2 main_~i~0) (<= (+ main_~i~0 main_~k~0) 2) (<= 1 (+ main_~i~0 main_~k~0)))} is VALID [2022-04-27 10:51:02,241 INFO L272 TraceCheckUtils]: 8: Hoare triple {30#(and (<= 2 main_~i~0) (<= (+ main_~i~0 main_~k~0) 2) (<= 1 (+ main_~i~0 main_~k~0)))} call __VERIFIER_assert((if (1 <= ~i~0 + ~k~0 && ~i~0 + ~k~0 <= 2) && ~i~0 >= 1 then 1 else 0)); {31#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-27 10:51:02,249 INFO L290 TraceCheckUtils]: 9: Hoare triple {31#(not (= |__VERIFIER_assert_#in~cond| 0))} ~cond := #in~cond; {32#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-27 10:51:02,251 INFO L290 TraceCheckUtils]: 10: Hoare triple {32#(not (= __VERIFIER_assert_~cond 0))} assume 0 == ~cond; {24#false} is VALID [2022-04-27 10:51:02,251 INFO L290 TraceCheckUtils]: 11: Hoare triple {24#false} assume !false; {24#false} is VALID [2022-04-27 10:51:02,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-27 10:51:02,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 10:51:02,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161088661] [2022-04-27 10:51:02,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161088661] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 10:51:02,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 10:51:02,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-27 10:51:02,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747323858] [2022-04-27 10:51:02,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 10:51:02,263 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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 12 [2022-04-27 10:51:02,264 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 10:51:02,266 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-04-27 10:51:02,286 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 10:51:02,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-27 10:51:02,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 10:51:02,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-27 10:51:02,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-04-27 10:51:02,322 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 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 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-04-27 10:51:02,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 10:51:02,725 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2022-04-27 10:51:02,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-27 10:51:02,726 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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 12 [2022-04-27 10:51:02,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 10:51:02,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-04-27 10:51:02,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 42 transitions. [2022-04-27 10:51:02,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-04-27 10:51:02,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 42 transitions. [2022-04-27 10:51:02,749 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 8 states and 42 transitions. [2022-04-27 10:51:02,796 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 10:51:02,801 INFO L225 Difference]: With dead ends: 34 [2022-04-27 10:51:02,801 INFO L226 Difference]: Without dead ends: 0 [2022-04-27 10:51:02,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-04-27 10:51:02,808 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 21 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-27 10:51:02,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 49 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-27 10:51:02,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-27 10:51:02,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-27 10:51:02,826 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 10:51:02,827 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) [2022-04-27 10:51:02,827 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) [2022-04-27 10:51:02,827 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) [2022-04-27 10:51:02,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 10:51:02,828 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-27 10:51:02,828 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-27 10:51:02,828 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 10:51:02,828 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 10:51:02,828 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. [2022-04-27 10:51:02,828 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. [2022-04-27 10:51:02,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 10:51:02,829 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-27 10:51:02,829 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-27 10:51:02,829 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 10:51:02,829 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 10:51:02,829 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 10:51:02,829 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 10:51:02,830 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) [2022-04-27 10:51:02,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-27 10:51:02,831 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-04-27 10:51:02,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 10:51:02,832 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-27 10:51:02,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-04-27 10:51:02,835 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-27 10:51:02,838 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 10:51:02,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-27 10:51:02,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-27 10:51:02,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-27 10:51:02,895 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2022-04-27 10:51:02,895 INFO L899 garLoopResultBuilder]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2022-04-27 10:51:02,895 INFO L899 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2022-04-27 10:51:02,895 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-04-27 10:51:02,895 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2022-04-27 10:51:02,895 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 16) no Hoare annotation was computed. [2022-04-27 10:51:02,896 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2022-04-27 10:51:02,896 INFO L895 garLoopResultBuilder]: At program point L34-1(lines 30 35) the Hoare annotation is: (or (and (<= 0 main_~k~0) (<= main_~k~0 1) (= (+ (- 1) main_~i~0) 0)) (let ((.cse0 (+ main_~i~0 main_~k~0))) (and (<= 2 main_~i~0) (<= .cse0 2) (<= 1 .cse0)))) [2022-04-27 10:51:02,896 INFO L902 garLoopResultBuilder]: At program point mainENTRY(lines 24 37) the Hoare annotation is: true [2022-04-27 10:51:02,896 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-04-27 10:51:02,896 INFO L899 garLoopResultBuilder]: For program point L30-2(lines 30 35) no Hoare annotation was computed. [2022-04-27 10:51:02,896 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 24 37) no Hoare annotation was computed. [2022-04-27 10:51:02,897 INFO L899 garLoopResultBuilder]: For program point mainFINAL(lines 24 37) no Hoare annotation was computed. [2022-04-27 10:51:02,897 INFO L895 garLoopResultBuilder]: At program point L34(line 34) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~k~0))) (and (<= 2 main_~i~0) (<= .cse0 2) (<= 1 .cse0))) [2022-04-27 10:51:02,897 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-04-27 10:51:02,897 INFO L895 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-04-27 10:51:02,897 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-04-27 10:51:02,897 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-04-27 10:51:02,897 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-04-27 10:51:02,898 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-27 10:51:02,898 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-04-27 10:51:02,898 INFO L899 garLoopResultBuilder]: For program point L18-2(lines 17 22) no Hoare annotation was computed. [2022-04-27 10:51:02,898 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2022-04-27 10:51:02,898 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 17 22) no Hoare annotation was computed. [2022-04-27 10:51:02,898 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-04-27 10:51:02,898 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2022-04-27 10:51:02,898 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2022-04-27 10:51:02,901 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-04-27 10:51:02,903 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-04-27 10:51:02,907 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-27 10:51:02,907 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-27 10:51:02,907 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-27 10:51:02,909 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2022-04-27 10:51:02,909 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2022-04-27 10:51:02,909 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2022-04-27 10:51:02,909 WARN L170 areAnnotationChecker]: L12-1 has no Hoare annotation [2022-04-27 10:51:02,909 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-27 10:51:02,910 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-27 10:51:02,910 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-04-27 10:51:02,910 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-04-27 10:51:02,910 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2022-04-27 10:51:02,910 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2022-04-27 10:51:02,910 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2022-04-27 10:51:02,910 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2022-04-27 10:51:02,910 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-27 10:51:02,910 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-27 10:51:02,910 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2022-04-27 10:51:02,910 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-27 10:51:02,910 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2022-04-27 10:51:02,910 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2022-04-27 10:51:02,914 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2022-04-27 10:51:02,914 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2022-04-27 10:51:02,915 WARN L170 areAnnotationChecker]: L18-2 has no Hoare annotation [2022-04-27 10:51:02,915 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-27 10:51:02,915 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2022-04-27 10:51:02,915 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-27 10:51:02,915 INFO L163 areAnnotationChecker]: CFG has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-27 10:51:02,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 10:51:02 BoogieIcfgContainer [2022-04-27 10:51:02,927 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-27 10:51:02,928 INFO L158 Benchmark]: Toolchain (without parser) took 1638.01ms. Allocated memory was 182.5MB in the beginning and 223.3MB in the end (delta: 40.9MB). Free memory was 131.8MB in the beginning and 127.6MB in the end (delta: 4.2MB). Peak memory consumption was 45.5MB. Max. memory is 8.0GB. [2022-04-27 10:51:02,930 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 182.5MB. Free memory is still 147.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-27 10:51:02,933 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.03ms. Allocated memory was 182.5MB in the beginning and 223.3MB in the end (delta: 40.9MB). Free memory was 131.6MB in the beginning and 199.4MB in the end (delta: -67.8MB). Peak memory consumption was 14.0MB. Max. memory is 8.0GB. [2022-04-27 10:51:02,934 INFO L158 Benchmark]: Boogie Preprocessor took 22.96ms. Allocated memory is still 223.3MB. Free memory was 199.4MB in the beginning and 197.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-27 10:51:02,935 INFO L158 Benchmark]: RCFGBuilder took 225.20ms. Allocated memory is still 223.3MB. Free memory was 197.8MB in the beginning and 186.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-27 10:51:02,935 INFO L158 Benchmark]: TraceAbstraction took 1181.16ms. Allocated memory is still 223.3MB. Free memory was 186.3MB in the beginning and 127.6MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. [2022-04-27 10:51:02,937 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 0.10ms. Allocated memory is still 182.5MB. Free memory is still 147.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 203.03ms. Allocated memory was 182.5MB in the beginning and 223.3MB in the end (delta: 40.9MB). Free memory was 131.6MB in the beginning and 199.4MB in the end (delta: -67.8MB). Peak memory consumption was 14.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.96ms. Allocated memory is still 223.3MB. Free memory was 199.4MB in the beginning and 197.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 225.20ms. Allocated memory is still 223.3MB. Free memory was 197.8MB in the beginning and 186.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1181.16ms. Allocated memory is still 223.3MB. Free memory was 186.3MB in the beginning and 127.6MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. 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: 19]: 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 6 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 71 IncrementalHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 16 mSDtfsCounter, 71 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 11 NumberOfFragments, 52 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 51 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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: 30]: Loop Invariant Derived loop invariant: ((0 <= k && k <= 1) && -1 + i == 0) || ((2 <= i && i + k <= 2) && 1 <= i + k) RESULT: Ultimate proved your program to be correct! [2022-04-27 10:51:02,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...