/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/array-fpi/ifncompf.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:46:27,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:46:27,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:46:27,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:46:27,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:46:27,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:46:27,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:46:27,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:46:27,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:46:27,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:46:27,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:46:27,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:46:27,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:46:27,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:46:27,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:46:27,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:46:27,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:46:27,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:46:27,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:46:27,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:46:27,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:46:27,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:46:27,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:46:27,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:46:27,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 04:46:27,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 04:46:27,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 04:46:27,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 04:46:27,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 04:46:27,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 04:46:27,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 04:46:27,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 04:46:27,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 04:46:27,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:46:27,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:46:27,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:46:27,483 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:46:27,505 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:46:27,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:46:27,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:46:27,510 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:46:27,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:46:27,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:46:27,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:46:27,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:46:27,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:46:27,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:46:27,512 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:46:27,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:46:27,512 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:46:27,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:46:27,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:46:27,513 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:46:27,514 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:46:27,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:46:27,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:46:27,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:46:27,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:46:27,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:46:27,515 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:46:27,515 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:46:27,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:46:27,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:46:27,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:46:27,963 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:46:27,964 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:46:27,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ifncompf.c [2021-02-24 04:46:28,047 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1d471847/4ca76e23740146beaac751adeca7bef5/FLAG7cb4f6567 [2021-02-24 04:46:28,713 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:46:28,714 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ifncompf.c [2021-02-24 04:46:28,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1d471847/4ca76e23740146beaac751adeca7bef5/FLAG7cb4f6567 [2021-02-24 04:46:29,076 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1d471847/4ca76e23740146beaac751adeca7bef5 [2021-02-24 04:46:29,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:46:29,093 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:46:29,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:46:29,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:46:29,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:46:29,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:46:29" (1/1) ... [2021-02-24 04:46:29,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d24c9ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:29, skipping insertion in model container [2021-02-24 04:46:29,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:46:29" (1/1) ... [2021-02-24 04:46:29,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:46:29,135 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:46:29,289 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ifncompf.c[591,604] [2021-02-24 04:46:29,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:46:29,323 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:46:29,339 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ifncompf.c[591,604] [2021-02-24 04:46:29,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:46:29,368 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:46:29,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:29 WrapperNode [2021-02-24 04:46:29,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:46:29,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:46:29,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:46:29,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:46:29,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:29" (1/1) ... [2021-02-24 04:46:29,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:29" (1/1) ... [2021-02-24 04:46:29,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:29" (1/1) ... [2021-02-24 04:46:29,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:29" (1/1) ... [2021-02-24 04:46:29,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:29" (1/1) ... [2021-02-24 04:46:29,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:29" (1/1) ... [2021-02-24 04:46:29,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:29" (1/1) ... [2021-02-24 04:46:29,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:46:29,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:46:29,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:46:29,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:46:29,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:46:29,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:46:29,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:46:29,527 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:46:29,527 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-24 04:46:29,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 04:46:29,527 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:46:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:46:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:46:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:46:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:46:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-24 04:46:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 04:46:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:46:29,529 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 04:46:29,529 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:46:29,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 04:46:29,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:46:29,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:46:29,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:46:29,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:46:29,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:46:29,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:46:30,126 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:46:30,127 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-02-24 04:46:30,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:46:30 BoogieIcfgContainer [2021-02-24 04:46:30,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:46:30,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:46:30,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:46:30,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:46:30,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:46:29" (1/3) ... [2021-02-24 04:46:30,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b416ebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:46:30, skipping insertion in model container [2021-02-24 04:46:30,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:29" (2/3) ... [2021-02-24 04:46:30,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b416ebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:46:30, skipping insertion in model container [2021-02-24 04:46:30,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:46:30" (3/3) ... [2021-02-24 04:46:30,143 INFO L111 eAbstractionObserver]: Analyzing ICFG ifncompf.c [2021-02-24 04:46:30,152 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:46:30,157 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:46:30,177 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:46:30,213 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:46:30,213 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:46:30,213 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:46:30,213 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:46:30,214 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:46:30,214 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:46:30,214 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:46:30,214 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:46:30,238 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2021-02-24 04:46:30,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-02-24 04:46:30,256 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:46:30,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:46:30,257 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:46:30,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:46:30,266 INFO L82 PathProgramCache]: Analyzing trace with hash 485960284, now seen corresponding path program 1 times [2021-02-24 04:46:30,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:46:30,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [321789795] [2021-02-24 04:46:30,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:46:30,369 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:46:30,512 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2021-02-24 04:46:30,512 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 04:46:30,524 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:46:30,551 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2021-02-24 04:46:30,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:46:30 BoogieIcfgContainer [2021-02-24 04:46:30,551 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:46:30,556 INFO L168 Benchmark]: Toolchain (without parser) took 1471.97 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 111.0 MB in the end (delta: 16.2 MB). Peak memory consumption was 15.6 MB. Max. memory is 8.0 GB. [2021-02-24 04:46:30,559 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 124.7 MB in the end (delta: 80.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:46:30,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.65 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 116.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-24 04:46:30,565 INFO L168 Benchmark]: Boogie Preprocessor took 48.11 ms. Allocated memory is still 151.0 MB. Free memory was 115.9 MB in the beginning and 114.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-24 04:46:30,566 INFO L168 Benchmark]: RCFGBuilder took 710.44 ms. Allocated memory is still 151.0 MB. Free memory was 114.1 MB in the beginning and 124.1 MB in the end (delta: -10.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-02-24 04:46:30,568 INFO L168 Benchmark]: TraceAbstraction took 417.91 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 111.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-24 04:46:30,578 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 124.7 MB in the end (delta: 80.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 271.65 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 116.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 48.11 ms. Allocated memory is still 151.0 MB. Free memory was 115.9 MB in the beginning and 114.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 710.44 ms. Allocated memory is still 151.0 MB. Free memory was 114.1 MB in the beginning and 124.1 MB in the end (delta: -10.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 417.91 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 111.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 15]: 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: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L30] long long *c = malloc(sizeof(long long)*N); [L32] i=0 [L32] COND FALSE !(i