/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/array-patterns/array28_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 19:46:08,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 19:46:08,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 19:46:08,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 19:46:08,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 19:46:08,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 19:46:08,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 19:46:08,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 19:46:08,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 19:46:08,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 19:46:08,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 19:46:08,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 19:46:08,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 19:46:08,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 19:46:08,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 19:46:08,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 19:46:08,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 19:46:08,348 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 19:46:08,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 19:46:08,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 19:46:08,350 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-01-31 19:46:08,363 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 19:46:08,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 19:46:08,365 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 19:46:08,365 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 19:46:08,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 19:46:08,365 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 19:46:08,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 19:46:08,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 19:46:08,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 19:46:08,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 19:46:08,367 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 19:46:08,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 19:46:08,367 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 19:46:08,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 19:46:08,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 19:46:08,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 19:46:08,367 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 19:46:08,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 19:46:08,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 19:46:08,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 19:46:08,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 19:46:08,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 19:46:08,368 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 19:46:08,368 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 19:46:08,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 19:46:08,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 19:46:08,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 19:46:08,602 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 19:46:08,603 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 19:46:08,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-patterns/array28_pattern.c [2022-01-31 19:46:08,677 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90a93ea60/c3ab2e93362e42399695fedcf929fb47/FLAGe44c0c723 [2022-01-31 19:46:08,999 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 19:46:09,000 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array28_pattern.c [2022-01-31 19:46:09,004 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90a93ea60/c3ab2e93362e42399695fedcf929fb47/FLAGe44c0c723 [2022-01-31 19:46:09,429 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90a93ea60/c3ab2e93362e42399695fedcf929fb47 [2022-01-31 19:46:09,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 19:46:09,432 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 19:46:09,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 19:46:09,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 19:46:09,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 19:46:09,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 07:46:09" (1/1) ... [2022-01-31 19:46:09,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4516cf33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:09, skipping insertion in model container [2022-01-31 19:46:09,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 07:46:09" (1/1) ... [2022-01-31 19:46:09,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 19:46:09,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 19:46:09,601 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array28_pattern.c[1246,1259] [2022-01-31 19:46:09,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 19:46:09,635 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 19:46:09,650 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array28_pattern.c[1246,1259] [2022-01-31 19:46:09,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 19:46:09,681 INFO L208 MainTranslator]: Completed translation [2022-01-31 19:46:09,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:09 WrapperNode [2022-01-31 19:46:09,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 19:46:09,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 19:46:09,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 19:46:09,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 19:46:09,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:09" (1/1) ... [2022-01-31 19:46:09,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:09" (1/1) ... [2022-01-31 19:46:09,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:09" (1/1) ... [2022-01-31 19:46:09,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:09" (1/1) ... [2022-01-31 19:46:09,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:09" (1/1) ... [2022-01-31 19:46:09,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:09" (1/1) ... [2022-01-31 19:46:09,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:09" (1/1) ... [2022-01-31 19:46:09,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 19:46:09,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 19:46:09,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 19:46:09,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 19:46:09,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:09" (1/1) ... [2022-01-31 19:46:09,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 19:46:09,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 19:46:09,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 19:46:09,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 19:46:09,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 19:46:09,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 19:46:09,799 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 19:46:09,799 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-31 19:46:09,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-31 19:46:09,799 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 19:46:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 19:46:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 19:46:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 19:46:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 19:46:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-31 19:46:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 19:46:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 19:46:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2022-01-31 19:46:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 19:46:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 19:46:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 19:46:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 19:46:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 19:46:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 19:46:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 19:46:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 19:46:09,857 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 19:46:09,858 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 19:46:09,975 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 19:46:09,980 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 19:46:09,981 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-31 19:46:09,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 07:46:09 BoogieIcfgContainer [2022-01-31 19:46:09,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 19:46:09,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 19:46:09,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 19:46:09,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 19:46:09,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 07:46:09" (1/3) ... [2022-01-31 19:46:09,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fac0ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 07:46:09, skipping insertion in model container [2022-01-31 19:46:09,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:09" (2/3) ... [2022-01-31 19:46:09,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fac0ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 07:46:09, skipping insertion in model container [2022-01-31 19:46:09,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 07:46:09" (3/3) ... [2022-01-31 19:46:09,990 INFO L111 eAbstractionObserver]: Analyzing ICFG array28_pattern.c [2022-01-31 19:46:09,993 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 19:46:09,994 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 19:46:10,031 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 19:46:10,037 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, 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, mLoopAccelerationTechnique=JORDAN [2022-01-31 19:46:10,037 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 19:46:10,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 25 states have (on average 1.52) internal successors, (38), 26 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 19:46:10,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-31 19:46:10,056 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:10,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:10,057 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:10,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:10,061 INFO L85 PathProgramCache]: Analyzing trace with hash 103061102, now seen corresponding path program 1 times [2022-01-31 19:46:10,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:10,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634123886] [2022-01-31 19:46:10,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:10,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:10,169 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:10,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:10,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 19:46:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:10,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 19:46:10,350 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:10,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1634123886] [2022-01-31 19:46:10,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1634123886] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:10,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:10,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-31 19:46:10,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420512134] [2022-01-31 19:46:10,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:10,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 19:46:10,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:10,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 19:46:10,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-31 19:46:10,397 INFO L87 Difference]: Start difference. First operand has 35 states, 25 states have (on average 1.52) internal successors, (38), 26 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-31 19:46:10,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:10,491 INFO L93 Difference]: Finished difference Result 61 states and 83 transitions. [2022-01-31 19:46:10,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 19:46:10,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2022-01-31 19:46:10,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:10,512 INFO L225 Difference]: With dead ends: 61 [2022-01-31 19:46:10,512 INFO L226 Difference]: Without dead ends: 28 [2022-01-31 19:46:10,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-31 19:46:10,517 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 8 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:10,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 44 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 19:46:10,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-01-31 19:46:10,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-01-31 19:46:10,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-31 19:46:10,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2022-01-31 19:46:10,567 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 19 [2022-01-31 19:46:10,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:10,568 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2022-01-31 19:46:10,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-31 19:46:10,569 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2022-01-31 19:46:10,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-31 19:46:10,570 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:10,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:10,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 19:46:10,571 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:10,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:10,573 INFO L85 PathProgramCache]: Analyzing trace with hash 804125680, now seen corresponding path program 1 times [2022-01-31 19:46:10,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:10,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460954408] [2022-01-31 19:46:10,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:10,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:10,581 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:10,609 WARN L127 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2022-01-31 19:46:10,610 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2022-01-31 19:46:10,615 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 19:46:10,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 19:46:10,626 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 19:46:10,631 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 19:46:10,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 07:46:10 BoogieIcfgContainer [2022-01-31 19:46:10,651 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 19:46:10,652 INFO L158 Benchmark]: Toolchain (without parser) took 1218.56ms. Allocated memory was 200.3MB in the beginning and 283.1MB in the end (delta: 82.8MB). Free memory was 144.9MB in the beginning and 211.9MB in the end (delta: -67.0MB). Peak memory consumption was 16.3MB. Max. memory is 8.0GB. [2022-01-31 19:46:10,652 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 200.3MB. Free memory is still 161.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 19:46:10,655 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.25ms. Allocated memory was 200.3MB in the beginning and 283.1MB in the end (delta: 82.8MB). Free memory was 144.7MB in the beginning and 253.8MB in the end (delta: -109.2MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. [2022-01-31 19:46:10,656 INFO L158 Benchmark]: Boogie Preprocessor took 51.17ms. Allocated memory is still 283.1MB. Free memory was 253.8MB in the beginning and 252.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-31 19:46:10,658 INFO L158 Benchmark]: RCFGBuilder took 247.58ms. Allocated memory is still 283.1MB. Free memory was 252.3MB in the beginning and 239.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-31 19:46:10,659 INFO L158 Benchmark]: TraceAbstraction took 666.70ms. Allocated memory is still 283.1MB. Free memory was 239.7MB in the beginning and 211.9MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-01-31 19:46:10,665 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 200.3MB. Free memory is still 161.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 248.25ms. Allocated memory was 200.3MB in the beginning and 283.1MB in the end (delta: 82.8MB). Free memory was 144.7MB in the beginning and 253.8MB in the end (delta: -109.2MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 51.17ms. Allocated memory is still 283.1MB. Free memory was 253.8MB in the beginning and 252.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 247.58ms. Allocated memory is still 283.1MB. Free memory was 252.3MB in the beginning and 239.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 666.70ms. Allocated memory is still 283.1MB. Free memory was 239.7MB in the beginning and 211.9MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. 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 - UnprovableResult [Line: 31]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L35] signed long long ARR_SIZE ; [L39] ARR_SIZE = (signed long long)__VERIFIER_nondet_short() [L40] CALL assume_abort_if_not(ARR_SIZE > 0) [L29] COND FALSE !(!cond) [L40] RET assume_abort_if_not(ARR_SIZE > 0) [L42] int array[ARR_SIZE][ARR_SIZE] ; [L44] int row = 0, column = 0, num = -1 ; [L45] signed long long sum = 0; [L47] row=0 [L47] COND FALSE !(row