/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/terminator_02-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 06:35:26,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 06:35:26,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 06:35:26,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 06:35:26,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 06:35:26,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 06:35:26,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 06:35:26,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 06:35:26,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 06:35:26,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 06:35:26,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 06:35:26,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 06:35:26,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 06:35:26,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 06:35:26,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 06:35:26,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 06:35:26,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 06:35:26,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 06:35:26,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 06:35:26,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 06:35:26,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 06:35:26,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 06:35:26,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 06:35:26,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 06:35:26,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 06:35:26,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 06:35:26,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 06:35:26,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 06:35:26,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 06:35:26,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 06:35:26,402 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 06:35:26,403 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 06:35:26,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 06:35:26,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 06:35:26,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 06:35:26,406 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 06:35:26,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 06:35:26,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 06:35:26,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 06:35:26,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 06:35:26,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 06:35:26,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 06:35:26,423 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 06:35:26,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 06:35:26,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 06:35:26,425 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 06:35:26,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 06:35:26,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 06:35:26,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 06:35:26,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 06:35:26,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 06:35:26,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 06:35:26,427 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 06:35:26,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 06:35:26,427 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 06:35:26,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 06:35:26,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 06:35:26,428 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 06:35:26,428 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 06:35:26,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 06:35:26,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 06:35:26,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 06:35:26,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 06:35:26,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 06:35:26,430 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 06:35:26,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 06:35:26,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 06:35:26,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 06:35:26,863 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 06:35:26,864 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 06:35:26,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_02-1.c [2020-11-07 06:35:26,945 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/189e388f9/ef62ac6862114027a5dd6fa8aa4120f1/FLAGbef8b097a [2020-11-07 06:35:27,553 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 06:35:27,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02-1.c [2020-11-07 06:35:27,561 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/189e388f9/ef62ac6862114027a5dd6fa8aa4120f1/FLAGbef8b097a [2020-11-07 06:35:27,954 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/189e388f9/ef62ac6862114027a5dd6fa8aa4120f1 [2020-11-07 06:35:27,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 06:35:27,966 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 06:35:27,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 06:35:27,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 06:35:27,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 06:35:27,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:35:27" (1/1) ... [2020-11-07 06:35:27,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1219ad88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:27, skipping insertion in model container [2020-11-07 06:35:27,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:35:27" (1/1) ... [2020-11-07 06:35:27,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 06:35:28,015 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 06:35:28,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:35:28,260 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 06:35:28,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:35:28,294 INFO L208 MainTranslator]: Completed translation [2020-11-07 06:35:28,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:28 WrapperNode [2020-11-07 06:35:28,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 06:35:28,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 06:35:28,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 06:35:28,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 06:35:28,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:28" (1/1) ... [2020-11-07 06:35:28,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:28" (1/1) ... [2020-11-07 06:35:28,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:28" (1/1) ... [2020-11-07 06:35:28,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:28" (1/1) ... [2020-11-07 06:35:28,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:28" (1/1) ... [2020-11-07 06:35:28,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:28" (1/1) ... [2020-11-07 06:35:28,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:28" (1/1) ... [2020-11-07 06:35:28,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 06:35:28,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 06:35:28,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 06:35:28,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 06:35:28,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:28" (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 [2020-11-07 06:35:28,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 06:35:28,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 06:35:28,416 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 06:35:28,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-07 06:35:28,416 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 06:35:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 06:35:28,417 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 06:35:28,417 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 06:35:28,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 06:35:28,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-07 06:35:28,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 06:35:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-11-07 06:35:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 06:35:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 06:35:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 06:35:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 06:35:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 06:35:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 06:35:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 06:35:28,727 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 06:35:28,727 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-07 06:35:28,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:35:28 BoogieIcfgContainer [2020-11-07 06:35:28,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 06:35:28,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 06:35:28,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 06:35:28,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 06:35:28,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:35:27" (1/3) ... [2020-11-07 06:35:28,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18705590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:35:28, skipping insertion in model container [2020-11-07 06:35:28,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:28" (2/3) ... [2020-11-07 06:35:28,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18705590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:35:28, skipping insertion in model container [2020-11-07 06:35:28,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:35:28" (3/3) ... [2020-11-07 06:35:28,740 INFO L111 eAbstractionObserver]: Analyzing ICFG terminator_02-1.c [2020-11-07 06:35:28,759 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 06:35:28,763 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 06:35:28,786 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 06:35:28,836 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 06:35:28,837 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 06:35:28,837 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 06:35:28,837 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 06:35:28,837 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 06:35:28,838 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 06:35:28,838 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 06:35:28,838 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 06:35:28,866 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-11-07 06:35:28,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-07 06:35:28,882 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:35:28,884 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] [2020-11-07 06:35:28,924 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:35:28,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:35:28,948 INFO L82 PathProgramCache]: Analyzing trace with hash 188640933, now seen corresponding path program 1 times [2020-11-07 06:35:28,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:35:28,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274484475] [2020-11-07 06:35:28,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:35:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 06:35:29,159 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 06:35:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 06:35:29,193 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 06:35:29,229 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 06:35:29,230 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 06:35:29,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 06:35:29,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 06:35:29 BoogieIcfgContainer [2020-11-07 06:35:29,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 06:35:29,277 INFO L168 Benchmark]: Toolchain (without parser) took 1315.60 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 124.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 967.9 kB. Max. memory is 8.0 GB. [2020-11-07 06:35:29,278 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 125.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 06:35:29,279 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.23 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 116.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 06:35:29,280 INFO L168 Benchmark]: Boogie Preprocessor took 38.77 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 115.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 06:35:29,281 INFO L168 Benchmark]: RCFGBuilder took 394.02 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 100.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-11-07 06:35:29,283 INFO L168 Benchmark]: TraceAbstraction took 542.30 ms. Allocated memory is still 151.0 MB. Free memory was 99.7 MB in the beginning and 124.2 MB in the end (delta: -24.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 06:35:29,287 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 125.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 325.23 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 116.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 38.77 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 115.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 394.02 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 100.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 542.30 ms. Allocated memory is still 151.0 MB. Free memory was 99.7 MB in the beginning and 124.2 MB in the end (delta: -24.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] int x=__VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=100, x=100] [L17] int y=__VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, x=100, y=0] [L18] int z=__VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, x=100, y=0, z=0] [L20] COND FALSE !(x<100 && 100