/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/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/loops/nec11.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-15 12:02:30,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-15 12:02:30,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-15 12:02:30,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-15 12:02:30,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-15 12:02:30,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-15 12:02:30,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-15 12:02:30,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-15 12:02:30,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-15 12:02:30,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-15 12:02:30,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-15 12:02:30,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-15 12:02:30,508 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-15 12:02:30,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-15 12:02:30,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-15 12:02:30,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-15 12:02:30,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-15 12:02:30,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-15 12:02:30,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-15 12:02:30,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-15 12:02:30,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-15 12:02:30,548 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-04-15 12:02:30,567 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-15 12:02:30,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-15 12:02:30,569 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-15 12:02:30,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-15 12:02:30,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-15 12:02:30,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-15 12:02:30,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-15 12:02:30,569 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-15 12:02:30,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-15 12:02:30,570 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-15 12:02:30,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-15 12:02:30,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-15 12:02:30,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-15 12:02:30,571 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-15 12:02:30,571 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-15 12:02:30,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 12:02:30,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-15 12:02:30,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-15 12:02:30,572 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-15 12:02:30,572 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-15 12:02:30,572 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-15 12:02:30,573 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-04-15 12:02:30,573 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-15 12:02:30,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-15 12:02:31,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-15 12:02:31,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-15 12:02:31,026 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-15 12:02:31,039 INFO L275 PluginConnector]: CDTParser initialized [2022-04-15 12:02:31,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/nec11.c [2022-04-15 12:02:31,103 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd2b7af94/8ca343a2c4dc426f98457920af7fd6fa/FLAG128b64dcd [2022-04-15 12:02:31,706 INFO L306 CDTParser]: Found 1 translation units. [2022-04-15 12:02:31,707 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/nec11.c [2022-04-15 12:02:31,726 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd2b7af94/8ca343a2c4dc426f98457920af7fd6fa/FLAG128b64dcd [2022-04-15 12:02:32,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd2b7af94/8ca343a2c4dc426f98457920af7fd6fa [2022-04-15 12:02:32,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-15 12:02:32,152 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-15 12:02:32,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-15 12:02:32,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-15 12:02:32,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-15 12:02:32,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:02:32" (1/1) ... [2022-04-15 12:02:32,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e13340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:02:32, skipping insertion in model container [2022-04-15 12:02:32,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:02:32" (1/1) ... [2022-04-15 12:02:32,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-15 12:02:32,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-15 12:02:32,430 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/nec11.c[317,330] [2022-04-15 12:02:32,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 12:02:32,484 INFO L203 MainTranslator]: Completed pre-run [2022-04-15 12:02:32,500 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/nec11.c[317,330] [2022-04-15 12:02:32,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 12:02:32,520 INFO L208 MainTranslator]: Completed translation [2022-04-15 12:02:32,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:02:32 WrapperNode [2022-04-15 12:02:32,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-15 12:02:32,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-15 12:02:32,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-15 12:02:32,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-15 12:02:32,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:02:32" (1/1) ... [2022-04-15 12:02:32,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:02:32" (1/1) ... [2022-04-15 12:02:32,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:02:32" (1/1) ... [2022-04-15 12:02:32,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:02:32" (1/1) ... [2022-04-15 12:02:32,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:02:32" (1/1) ... [2022-04-15 12:02:32,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:02:32" (1/1) ... [2022-04-15 12:02:32,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:02:32" (1/1) ... [2022-04-15 12:02:32,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-15 12:02:32,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-15 12:02:32,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-15 12:02:32,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-15 12:02:32,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:02:32" (1/1) ... [2022-04-15 12:02:32,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 12:02:32,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 12:02:32,589 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) [2022-04-15 12:02:32,636 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 [2022-04-15 12:02:32,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-15 12:02:32,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-15 12:02:32,663 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-15 12:02:32,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-15 12:02:32,664 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-15 12:02:32,664 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-15 12:02:32,664 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-15 12:02:32,664 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-15 12:02:32,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-15 12:02:32,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-15 12:02:32,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2022-04-15 12:02:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-15 12:02:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-15 12:02:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-15 12:02:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-15 12:02:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-15 12:02:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-15 12:02:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-15 12:02:32,794 INFO L234 CfgBuilder]: Building ICFG [2022-04-15 12:02:32,796 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-15 12:02:33,013 INFO L275 CfgBuilder]: Performing block encoding [2022-04-15 12:02:33,018 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-15 12:02:33,018 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-15 12:02:33,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:02:33 BoogieIcfgContainer [2022-04-15 12:02:33,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-15 12:02:33,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-15 12:02:33,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-15 12:02:33,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-15 12:02:33,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 12:02:32" (1/3) ... [2022-04-15 12:02:33,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@421ab485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:02:33, skipping insertion in model container [2022-04-15 12:02:33,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:02:32" (2/3) ... [2022-04-15 12:02:33,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@421ab485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:02:33, skipping insertion in model container [2022-04-15 12:02:33,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:02:33" (3/3) ... [2022-04-15 12:02:33,056 INFO L111 eAbstractionObserver]: Analyzing ICFG nec11.c [2022-04-15 12:02:33,070 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-15 12:02:33,070 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-15 12:02:33,180 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-15 12:02:33,194 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2022-04-15 12:02:33,195 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-15 12:02:33,231 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) [2022-04-15 12:02:33,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-15 12:02:33,236 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 12:02:33,236 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 12:02:33,249 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 12:02:33,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 12:02:33,254 INFO L85 PathProgramCache]: Analyzing trace with hash 536722933, now seen corresponding path program 1 times [2022-04-15 12:02:33,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 12:02:33,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1450725118] [2022-04-15 12:02:33,291 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 12:02:33,292 INFO L85 PathProgramCache]: Analyzing trace with hash 536722933, now seen corresponding path program 2 times [2022-04-15 12:02:33,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 12:02:33,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185470004] [2022-04-15 12:02:33,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 12:02:33,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 12:02:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 12:02:33,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 12:02:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 12:02:33,649 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 [2022-04-15 12:02:33,662 INFO L290 TraceCheckUtils]: 1: Hoare triple {24#true} assume true; {24#true} is VALID [2022-04-15 12:02:33,662 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {24#true} {24#true} #44#return; {24#true} is VALID [2022-04-15 12:02:33,664 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 [2022-04-15 12:02:33,665 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 [2022-04-15 12:02:33,665 INFO L290 TraceCheckUtils]: 2: Hoare triple {24#true} assume true; {24#true} is VALID [2022-04-15 12:02:33,665 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {24#true} {24#true} #44#return; {24#true} is VALID [2022-04-15 12:02:33,665 INFO L272 TraceCheckUtils]: 4: Hoare triple {24#true} call #t~ret6 := main(); {24#true} is VALID [2022-04-15 12:02:33,666 INFO L290 TraceCheckUtils]: 5: Hoare triple {24#true} havoc ~a~0;~len~0 := 0;~c~0 := #t~nondet4;havoc #t~nondet4;havoc ~i~0; {24#true} is VALID [2022-04-15 12:02:33,666 INFO L290 TraceCheckUtils]: 6: Hoare triple {24#true} assume !true; {25#false} is VALID [2022-04-15 12:02:33,667 INFO L272 TraceCheckUtils]: 7: Hoare triple {25#false} call __VERIFIER_assert((if 5 == ~len~0 then 1 else 0)); {25#false} is VALID [2022-04-15 12:02:33,667 INFO L290 TraceCheckUtils]: 8: Hoare triple {25#false} ~cond := #in~cond; {25#false} is VALID [2022-04-15 12:02:33,667 INFO L290 TraceCheckUtils]: 9: Hoare triple {25#false} assume 0 == ~cond; {25#false} is VALID [2022-04-15 12:02:33,668 INFO L290 TraceCheckUtils]: 10: Hoare triple {25#false} assume !false; {25#false} is VALID [2022-04-15 12:02:33,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 12:02:33,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 12:02:33,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185470004] [2022-04-15 12:02:33,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185470004] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 12:02:33,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 12:02:33,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-15 12:02:33,681 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 12:02:33,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1450725118] [2022-04-15 12:02:33,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1450725118] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 12:02:33,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 12:02:33,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-15 12:02:33,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219534095] [2022-04-15 12:02:33,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 12:02:33,688 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 [2022-04-15 12:02:33,689 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 12:02:33,692 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) [2022-04-15 12:02:33,715 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 12:02:33,715 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-15 12:02:33,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 12:02:33,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-15 12:02:33,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-15 12:02:33,758 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) [2022-04-15 12:02:33,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 12:02:33,920 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-04-15 12:02:33,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-15 12:02:33,921 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 [2022-04-15 12:02:33,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 12:02:33,922 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) [2022-04-15 12:02:33,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2022-04-15 12:02:33,931 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) [2022-04-15 12:02:33,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2022-04-15 12:02:33,952 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 37 transitions. [2022-04-15 12:02:34,018 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 12:02:34,025 INFO L225 Difference]: With dead ends: 33 [2022-04-15 12:02:34,025 INFO L226 Difference]: Without dead ends: 14 [2022-04-15 12:02:34,028 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 [2022-04-15 12:02:34,032 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 [2022-04-15 12:02:34,033 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] [2022-04-15 12:02:34,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-04-15 12:02:34,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-04-15 12:02:34,063 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 12:02:34,064 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) [2022-04-15 12:02:34,064 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) [2022-04-15 12:02:34,065 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) [2022-04-15 12:02:34,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 12:02:34,070 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-04-15 12:02:34,071 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-04-15 12:02:34,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 12:02:34,071 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 12:02:34,072 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. [2022-04-15 12:02:34,073 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. [2022-04-15 12:02:34,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 12:02:34,076 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-04-15 12:02:34,077 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-04-15 12:02:34,077 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 12:02:34,077 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 12:02:34,077 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 12:02:34,078 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 12:02:34,078 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) [2022-04-15 12:02:34,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-04-15 12:02:34,080 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-04-15 12:02:34,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 12:02:34,081 INFO L478 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-04-15 12:02:34,081 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) [2022-04-15 12:02:34,081 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 14 states and 15 transitions. [2022-04-15 12:02:34,101 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 12:02:34,102 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-04-15 12:02:34,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-15 12:02:34,103 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 12:02:34,104 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 12:02:34,107 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-15 12:02:34,108 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 12:02:34,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 12:02:34,112 INFO L85 PathProgramCache]: Analyzing trace with hash 526564202, now seen corresponding path program 1 times [2022-04-15 12:02:34,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 12:02:34,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [368401913] [2022-04-15 12:02:34,115 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 12:02:34,115 INFO L85 PathProgramCache]: Analyzing trace with hash 526564202, now seen corresponding path program 2 times [2022-04-15 12:02:34,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 12:02:34,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814396110] [2022-04-15 12:02:34,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 12:02:34,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 12:02:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-15 12:02:34,148 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-15 12:02:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-15 12:02:34,193 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-15 12:02:34,195 INFO L130 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace [2022-04-15 12:02:34,196 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-15 12:02:34,199 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-15 12:02:34,201 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-15 12:02:34,204 INFO L719 BasicCegarLoop]: Path program histogram: [2, 2] [2022-04-15 12:02:34,206 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-15 12:02:34,216 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-15 12:02:34,217 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2022-04-15 12:02:34,217 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-15 12:02:34,217 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-15 12:02:34,217 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2022-04-15 12:02:34,217 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2022-04-15 12:02:34,217 WARN L170 areAnnotationChecker]: reach_errorFINAL has no Hoare annotation [2022-04-15 12:02:34,217 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-15 12:02:34,217 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-15 12:02:34,217 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-15 12:02:34,217 WARN L170 areAnnotationChecker]: L21-2 has no Hoare annotation [2022-04-15 12:02:34,217 WARN L170 areAnnotationChecker]: L21-2 has no Hoare annotation [2022-04-15 12:02:34,217 WARN L170 areAnnotationChecker]: L21-2 has no Hoare annotation [2022-04-15 12:02:34,217 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-04-15 12:02:34,218 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-04-15 12:02:34,218 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-15 12:02:34,218 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-15 12:02:34,218 WARN L170 areAnnotationChecker]: L21-3 has no Hoare annotation [2022-04-15 12:02:34,218 WARN L170 areAnnotationChecker]: L21-3 has no Hoare annotation [2022-04-15 12:02:34,218 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2022-04-15 12:02:34,218 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2022-04-15 12:02:34,218 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-15 12:02:34,218 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-15 12:02:34,218 WARN L170 areAnnotationChecker]: L6-2 has no Hoare annotation [2022-04-15 12:02:34,218 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2022-04-15 12:02:34,218 WARN L170 areAnnotationChecker]: L23-2 has no Hoare annotation [2022-04-15 12:02:34,218 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-15 12:02:34,219 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-15 12:02:34,219 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-15 12:02:34,219 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-15 12:02:34,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 12:02:34 BoogieIcfgContainer [2022-04-15 12:02:34,223 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-15 12:02:34,225 INFO L158 Benchmark]: Toolchain (without parser) took 2071.95ms. Allocated memory is still 187.7MB. Free memory was 166.4MB in the beginning and 113.6MB in the end (delta: 52.8MB). Peak memory consumption was 51.1MB. Max. memory is 8.0GB. [2022-04-15 12:02:34,225 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 187.7MB. Free memory is still 152.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-15 12:02:34,228 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.04ms. Allocated memory is still 187.7MB. Free memory was 166.1MB in the beginning and 163.9MB in the end (delta: 2.2MB). Peak memory consumption was 10.2MB. Max. memory is 8.0GB. [2022-04-15 12:02:34,228 INFO L158 Benchmark]: Boogie Preprocessor took 34.70ms. Allocated memory is still 187.7MB. Free memory was 163.9MB in the beginning and 162.6MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-15 12:02:34,230 INFO L158 Benchmark]: RCFGBuilder took 483.96ms. Allocated memory is still 187.7MB. Free memory was 162.6MB in the beginning and 152.4MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-15 12:02:34,231 INFO L158 Benchmark]: TraceAbstraction took 1180.51ms. Allocated memory is still 187.7MB. Free memory was 151.7MB in the beginning and 113.6MB in the end (delta: 38.1MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2022-04-15 12:02:34,235 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 0.17ms. Allocated memory is still 187.7MB. Free memory is still 152.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 366.04ms. Allocated memory is still 187.7MB. Free memory was 166.1MB in the beginning and 163.9MB in the end (delta: 2.2MB). Peak memory consumption was 10.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.70ms. Allocated memory is still 187.7MB. Free memory was 163.9MB in the beginning and 162.6MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 483.96ms. Allocated memory is still 187.7MB. Free memory was 162.6MB in the beginning and 152.4MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1180.51ms. Allocated memory is still 187.7MB. Free memory was 151.7MB in the beginning and 113.6MB in the end (delta: 38.1MB). Peak memory consumption was 37.7MB. 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 - CounterExampleResult [Line: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L15] int a[5]; [L16] int len=0; [L17] _Bool c=__VERIFIER_nondet_bool(); [L18] int i; [L21] COND FALSE !(\read(c)) [L30] CALL __VERIFIER_assert(len==5) [L6] COND TRUE !(cond) [L7] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 21 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 3, 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: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 RESULT: Ultimate proved your program to be incorrect! [2022-04-15 12:02:34,303 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...