/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/array-programs/partial_mod_count_limited_4.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:11:48,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:11:48,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:11:48,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 23:11:48,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:11:48,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:11:48,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:11:48,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:11:48,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:11:48,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:11:48,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:11:48,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:11:48,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:11:48,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:11:48,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:11:48,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:11:48,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 23:11:48,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:11:48,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:11:48,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:11:48,924 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 23:11:48,935 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:11:48,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:11:48,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:11:48,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:11:48,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:11:48,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:11:48,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:11:48,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:11:48,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:11:48,937 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:11:48,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:11:48,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:11:48,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:11:48,938 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:11:48,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:11:48,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:11:48,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:11:48,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:11:48,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:11:48,938 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-01-31 23:11:48,938 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:11:49,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:11:49,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:11:49,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:11:49,101 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:11:49,102 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:11:49,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-programs/partial_mod_count_limited_4.c [2022-01-31 23:11:49,144 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b257116b5/d623a9668c2a4c1c8fd2c27b2cb7b198/FLAG12b39cf84 [2022-01-31 23:11:49,487 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:11:49,488 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-programs/partial_mod_count_limited_4.c [2022-01-31 23:11:49,501 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b257116b5/d623a9668c2a4c1c8fd2c27b2cb7b198/FLAG12b39cf84 [2022-01-31 23:11:49,920 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b257116b5/d623a9668c2a4c1c8fd2c27b2cb7b198 [2022-01-31 23:11:49,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:11:49,923 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:11:49,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:11:49,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:11:49,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:11:49,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:11:49" (1/1) ... [2022-01-31 23:11:49,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@147f4ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:49, skipping insertion in model container [2022-01-31 23:11:49,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:11:49" (1/1) ... [2022-01-31 23:11:49,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:11:49,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:11:50,067 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-programs/partial_mod_count_limited_4.c[331,344] [2022-01-31 23:11:50,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:11:50,082 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:11:50,089 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-programs/partial_mod_count_limited_4.c[331,344] [2022-01-31 23:11:50,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:11:50,100 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:11:50,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:50 WrapperNode [2022-01-31 23:11:50,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:11:50,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:11:50,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:11:50,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:11:50,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:50" (1/1) ... [2022-01-31 23:11:50,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:50" (1/1) ... [2022-01-31 23:11:50,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:50" (1/1) ... [2022-01-31 23:11:50,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:50" (1/1) ... [2022-01-31 23:11:50,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:50" (1/1) ... [2022-01-31 23:11:50,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:50" (1/1) ... [2022-01-31 23:11:50,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:50" (1/1) ... [2022-01-31 23:11:50,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:11:50,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:11:50,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:11:50,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:11:50,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:50" (1/1) ... [2022-01-31 23:11:50,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:11:50,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:11:50,155 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 23:11:50,183 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 23:11:50,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:11:50,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:11:50,222 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:11:50,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-31 23:11:50,222 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-31 23:11:50,222 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:11:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:11:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:11:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:11:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:11:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 23:11:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-31 23:11:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 23:11:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:11:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 23:11:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:11:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:11:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:11:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:11:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:11:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:11:50,281 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:11:50,282 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:11:50,432 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:11:50,436 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:11:50,436 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-31 23:11:50,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:11:50 BoogieIcfgContainer [2022-01-31 23:11:50,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:11:50,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:11:50,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:11:50,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:11:50,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:11:49" (1/3) ... [2022-01-31 23:11:50,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7310710e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:11:50, skipping insertion in model container [2022-01-31 23:11:50,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:50" (2/3) ... [2022-01-31 23:11:50,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7310710e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:11:50, skipping insertion in model container [2022-01-31 23:11:50,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:11:50" (3/3) ... [2022-01-31 23:11:50,443 INFO L111 eAbstractionObserver]: Analyzing ICFG partial_mod_count_limited_4.c [2022-01-31 23:11:50,446 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:11:50,446 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 23:11:50,483 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:11:50,502 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 23:11:50,502 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 23:11:50,513 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 23 states have (on average 1.434782608695652) internal successors, (33), 24 states have internal predecessors, (33), 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 23:11:50,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-31 23:11:50,523 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:11:50,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:11:50,523 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:11:50,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:11:50,527 INFO L85 PathProgramCache]: Analyzing trace with hash 2033071227, now seen corresponding path program 1 times [2022-01-31 23:11:50,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:11:50,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1503438157] [2022-01-31 23:11:50,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:11:50,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:11:50,590 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:11:50,644 WARN L127 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2022-01-31 23:11:50,645 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2022-01-31 23:11:50,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 23:11:50,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:11:50,654 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-31 23:11:50,655 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 23:11:50,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 11:11:50 BoogieIcfgContainer [2022-01-31 23:11:50,666 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 23:11:50,666 INFO L158 Benchmark]: Toolchain (without parser) took 742.92ms. Allocated memory is still 182.5MB. Free memory was 129.5MB in the beginning and 128.8MB in the end (delta: 688.4kB). Peak memory consumption was 2.0MB. Max. memory is 8.0GB. [2022-01-31 23:11:50,667 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 182.5MB. Free memory is still 146.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:11:50,668 INFO L158 Benchmark]: CACSL2BoogieTranslator took 175.65ms. Allocated memory is still 182.5MB. Free memory was 129.3MB in the beginning and 155.0MB in the end (delta: -25.7MB). Peak memory consumption was 6.2MB. Max. memory is 8.0GB. [2022-01-31 23:11:50,669 INFO L158 Benchmark]: Boogie Preprocessor took 19.17ms. Allocated memory is still 182.5MB. Free memory was 155.0MB in the beginning and 153.3MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-31 23:11:50,669 INFO L158 Benchmark]: RCFGBuilder took 316.79ms. Allocated memory is still 182.5MB. Free memory was 153.3MB in the beginning and 141.6MB in the end (delta: 11.7MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-31 23:11:50,672 INFO L158 Benchmark]: TraceAbstraction took 227.12ms. Allocated memory is still 182.5MB. Free memory was 141.1MB in the beginning and 128.8MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-31 23:11:50,675 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 182.5MB. Free memory is still 146.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 175.65ms. Allocated memory is still 182.5MB. Free memory was 129.3MB in the beginning and 155.0MB in the end (delta: -25.7MB). Peak memory consumption was 6.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.17ms. Allocated memory is still 182.5MB. Free memory was 155.0MB in the beginning and 153.3MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 316.79ms. Allocated memory is still 182.5MB. Free memory was 153.3MB in the beginning and 141.6MB in the end (delta: 11.7MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 227.12ms. Allocated memory is still 182.5MB. Free memory was 141.1MB in the beginning and 128.8MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. 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: 4]: 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: [L10] int N = 1000; [L12] int i,j=0,k=0,a[N]; [L13] int lim=__VERIFIER_nondet_int(); [L14] unsigned int R=4; [L15] CALL assume_abort_if_not(0 < lim && lim < N/R) [L7] COND TRUE !cond [L15] RET assume_abort_if_not(0 < lim && lim < N/R) [L16] i=0 [L16] COND FALSE !(i