/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/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/loops/matrix-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:21:26,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:21:26,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:21:26,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 23:21:26,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 23:21:26,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 23:21:26,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 23:21:26,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 23:21:26,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 23:21:26,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 23:21:26,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 23:21:26,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 23:21:26,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:21:26,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:21:26,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:21:26,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:21:26,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:21:26,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:21:26,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:21:26,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:21:26,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:21:26,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:21:26,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:21:26,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:21:26,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 23:21:26,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:21:26,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:21:26,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:21:26,182 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-01-31 23:21:26,196 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:21:26,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:21:26,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:21:26,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:21:26,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:21:26,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:21:26,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:21:26,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:21:26,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:21:26,198 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:21:26,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:21:26,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:21:26,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:21:26,199 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:21:26,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:21:26,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:21:26,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:21:26,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:21:26,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:21:26,200 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-01-31 23:21:26,200 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:21:26,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:21:26,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:21:26,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:21:26,414 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:21:26,418 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:21:26,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/matrix-2.c [2022-01-31 23:21:26,474 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dd865edc/1e8f1c25cc4a49afa2ebac23c81a1243/FLAGdd19777d3 [2022-01-31 23:21:26,808 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:21:26,808 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/matrix-2.c [2022-01-31 23:21:26,812 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dd865edc/1e8f1c25cc4a49afa2ebac23c81a1243/FLAGdd19777d3 [2022-01-31 23:21:26,825 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dd865edc/1e8f1c25cc4a49afa2ebac23c81a1243 [2022-01-31 23:21:26,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:21:26,829 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:21:26,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:21:26,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:21:26,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:21:26,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:21:26" (1/1) ... [2022-01-31 23:21:26,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65a04b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:26, skipping insertion in model container [2022-01-31 23:21:26,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:21:26" (1/1) ... [2022-01-31 23:21:26,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:21:26,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:21:26,974 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/matrix-2.c[320,333] [2022-01-31 23:21:27,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:21:27,019 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:21:27,027 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/matrix-2.c[320,333] [2022-01-31 23:21:27,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:21:27,051 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:21:27,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:27 WrapperNode [2022-01-31 23:21:27,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:21:27,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:21:27,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:21:27,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:21:27,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:27" (1/1) ... [2022-01-31 23:21:27,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:27" (1/1) ... [2022-01-31 23:21:27,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:27" (1/1) ... [2022-01-31 23:21:27,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:27" (1/1) ... [2022-01-31 23:21:27,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:27" (1/1) ... [2022-01-31 23:21:27,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:27" (1/1) ... [2022-01-31 23:21:27,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:27" (1/1) ... [2022-01-31 23:21:27,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:21:27,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:21:27,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:21:27,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:21:27,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:27" (1/1) ... [2022-01-31 23:21:27,096 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:21:27,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:21:27,133 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 23:21:27,167 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 23:21:27,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:21:27,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:21:27,173 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:21:27,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-31 23:21:27,173 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:21:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:21:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:21:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:21:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:21:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 23:21:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-01-31 23:21:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 23:21:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:21:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 23:21:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:21:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:21:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:21:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:21:27,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:21:27,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:21:27,234 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:21:27,235 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:21:27,385 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:21:27,389 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:21:27,389 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-31 23:21:27,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:21:27 BoogieIcfgContainer [2022-01-31 23:21:27,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:21:27,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:21:27,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:21:27,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:21:27,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:21:26" (1/3) ... [2022-01-31 23:21:27,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7293db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:21:27, skipping insertion in model container [2022-01-31 23:21:27,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:21:27" (2/3) ... [2022-01-31 23:21:27,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7293db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:21:27, skipping insertion in model container [2022-01-31 23:21:27,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:21:27" (3/3) ... [2022-01-31 23:21:27,397 INFO L111 eAbstractionObserver]: Analyzing ICFG matrix-2.c [2022-01-31 23:21:27,400 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:21:27,401 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 23:21:27,448 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:21:27,453 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=QVASR [2022-01-31 23:21:27,453 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 23:21:27,464 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 22 states have internal predecessors, (32), 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) [2022-01-31 23:21:27,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-31 23:21:27,470 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:21:27,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:21:27,471 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:21:27,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:21:27,474 INFO L85 PathProgramCache]: Analyzing trace with hash -691068696, now seen corresponding path program 1 times [2022-01-31 23:21:27,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:21:27,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [215186669] [2022-01-31 23:21:27,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:21:27,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:21:27,521 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:21:27,546 WARN L127 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2022-01-31 23:21:27,547 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2022-01-31 23:21:27,550 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 23:21:27,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:21:27,554 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-31 23:21:27,555 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 23:21:27,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 11:21:27 BoogieIcfgContainer [2022-01-31 23:21:27,562 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 23:21:27,562 INFO L158 Benchmark]: Toolchain (without parser) took 733.75ms. Allocated memory is still 218.1MB. Free memory was 167.0MB in the beginning and 164.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.6MB. Max. memory is 8.0GB. [2022-01-31 23:21:27,563 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 218.1MB. Free memory is still 183.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:21:27,563 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.68ms. Allocated memory is still 218.1MB. Free memory was 166.7MB in the beginning and 191.3MB in the end (delta: -24.6MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. [2022-01-31 23:21:27,564 INFO L158 Benchmark]: Boogie Preprocessor took 37.94ms. Allocated memory is still 218.1MB. Free memory was 191.3MB in the beginning and 189.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 23:21:27,564 INFO L158 Benchmark]: RCFGBuilder took 300.62ms. Allocated memory is still 218.1MB. Free memory was 189.8MB in the beginning and 178.2MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-31 23:21:27,568 INFO L158 Benchmark]: TraceAbstraction took 169.86ms. Allocated memory is still 218.1MB. Free memory was 177.7MB in the beginning and 164.6MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-01-31 23:21:27,571 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 218.1MB. Free memory is still 183.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 221.68ms. Allocated memory is still 218.1MB. Free memory was 166.7MB in the beginning and 191.3MB in the end (delta: -24.6MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.94ms. Allocated memory is still 218.1MB. Free memory was 191.3MB in the beginning and 189.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 300.62ms. Allocated memory is still 218.1MB. Free memory was 189.8MB in the beginning and 178.2MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 169.86ms. Allocated memory is still 218.1MB. Free memory was 177.7MB in the beginning and 164.6MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. 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: 7]: 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: [L16] unsigned int N_LIN=__VERIFIER_nondet_uint(); [L17] unsigned int N_COL=__VERIFIER_nondet_uint(); [L18] unsigned int j,k; [L19] int matriz[N_COL][N_LIN], maior; [L21] maior = __VERIFIER_nondet_int() [L22] j=0 [L22] COND FALSE !(j