/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.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/array-fpi/sina3f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 09:19:10,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 09:19:10,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 09:19:10,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 09:19:10,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 09:19:10,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 09:19:10,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 09:19:10,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 09:19:10,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 09:19:10,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 09:19:10,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 09:19:10,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 09:19:10,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 09:19:10,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 09:19:10,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 09:19:10,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 09:19:10,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 09:19:10,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 09:19:10,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 09:19:10,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 09:19:10,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 09:19:10,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 09:19:10,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 09:19:10,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 09:19:10,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 09:19:10,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 09:19:10,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 09:19:10,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 09:19:10,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 09:19:10,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 09:19:10,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 09:19:10,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 09:19:10,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 09:19:10,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 09:19:10,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 09:19:10,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 09:19:10,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 09:19:10,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 09:19:10,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 09:19:10,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 09:19:10,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 09:19:10,711 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 09:19:10,765 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 09:19:10,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 09:19:10,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 09:19:10,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 09:19:10,770 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 09:19:10,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 09:19:10,771 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 09:19:10,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 09:19:10,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 09:19:10,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 09:19:10,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 09:19:10,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 09:19:10,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 09:19:10,773 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 09:19:10,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 09:19:10,774 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 09:19:10,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 09:19:10,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 09:19:10,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 09:19:10,774 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 09:19:10,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 09:19:10,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 09:19:10,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 09:19:10,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 09:19:10,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 09:19:10,775 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 09:19:10,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 09:19:10,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 09:19:10,776 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 09:19:10,776 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 09:19:11,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 09:19:11,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 09:19:11,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 09:19:11,245 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 09:19:11,246 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 09:19:11,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina3f.c [2020-10-28 09:19:11,341 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82614efc2/a1dc84bc175742e696988ccce96b2b14/FLAG47c47213e [2020-10-28 09:19:11,982 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 09:19:11,983 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/sina3f.c [2020-10-28 09:19:11,992 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82614efc2/a1dc84bc175742e696988ccce96b2b14/FLAG47c47213e [2020-10-28 09:19:12,347 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82614efc2/a1dc84bc175742e696988ccce96b2b14 [2020-10-28 09:19:12,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 09:19:12,358 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 09:19:12,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 09:19:12,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 09:19:12,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 09:19:12,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:19:12" (1/1) ... [2020-10-28 09:19:12,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb1fdfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:12, skipping insertion in model container [2020-10-28 09:19:12,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:19:12" (1/1) ... [2020-10-28 09:19:12,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 09:19:12,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 09:19:12,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:19:12,620 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 09:19:12,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:19:12,668 INFO L208 MainTranslator]: Completed translation [2020-10-28 09:19:12,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:12 WrapperNode [2020-10-28 09:19:12,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 09:19:12,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 09:19:12,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 09:19:12,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 09:19:12,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:12" (1/1) ... [2020-10-28 09:19:12,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:12" (1/1) ... [2020-10-28 09:19:12,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:12" (1/1) ... [2020-10-28 09:19:12,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:12" (1/1) ... [2020-10-28 09:19:12,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:12" (1/1) ... [2020-10-28 09:19:12,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:12" (1/1) ... [2020-10-28 09:19:12,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:12" (1/1) ... [2020-10-28 09:19:12,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 09:19:12,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 09:19:12,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 09:19:12,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 09:19:12,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-28 09:19:12,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 09:19:12,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 09:19:12,845 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 09:19:12,845 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 09:19:12,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-28 09:19:12,846 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 09:19:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 09:19:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 09:19:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 09:19:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 09:19:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 09:19:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-28 09:19:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 09:19:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 09:19:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 09:19:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 09:19:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 09:19:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 09:19:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 09:19:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 09:19:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 09:19:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 09:19:13,407 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 09:19:13,410 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-28 09:19:13,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:19:13 BoogieIcfgContainer [2020-10-28 09:19:13,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 09:19:13,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 09:19:13,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 09:19:13,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 09:19:13,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:19:12" (1/3) ... [2020-10-28 09:19:13,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a5a9d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:19:13, skipping insertion in model container [2020-10-28 09:19:13,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:12" (2/3) ... [2020-10-28 09:19:13,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a5a9d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:19:13, skipping insertion in model container [2020-10-28 09:19:13,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:19:13" (3/3) ... [2020-10-28 09:19:13,429 INFO L111 eAbstractionObserver]: Analyzing ICFG sina3f.c [2020-10-28 09:19:13,447 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 09:19:13,454 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 09:19:13,477 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 09:19:13,530 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 09:19:13,531 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 09:19:13,531 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 09:19:13,531 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 09:19:13,531 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 09:19:13,532 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 09:19:13,532 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 09:19:13,533 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 09:19:13,562 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-10-28 09:19:13,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-28 09:19:13,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:19:13,575 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] [2020-10-28 09:19:13,576 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:19:13,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:19:13,587 INFO L82 PathProgramCache]: Analyzing trace with hash -386611775, now seen corresponding path program 1 times [2020-10-28 09:19:13,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:19:13,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356542693] [2020-10-28 09:19:13,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:19:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:19:13,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:14,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:14,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:14,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:14,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:14,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:15,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:15,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:15,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:17,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:19:17,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 09:19:17,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 09:19:17,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3625 [2020-10-28 09:19:17,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:19:17,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:19:17,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:19:17,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 09:19:17,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:19:17,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-28 09:19:17,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:19:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:19:17,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:17,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:19:17,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:19:17,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:19:17,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 09:19:17,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:19:17,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:19:17,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:19:17,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:19:17,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:19:17,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:19:17,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 09:19:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:19:17,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:17,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:19:17,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 09:19:17,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:19:17,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:19:17,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:19:17,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:19:17,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:19:17,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 09:19:17,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:19:17,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:19:17,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 09:19:17,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1356542693] [2020-10-28 09:19:17,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:19:17,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 09:19:17,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066585375] [2020-10-28 09:19:17,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 09:19:17,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:19:17,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 09:19:17,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 09:19:17,704 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-10-28 09:19:17,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:19:17,892 INFO L93 Difference]: Finished difference Result 75 states and 99 transitions. [2020-10-28 09:19:17,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 09:19:17,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-10-28 09:19:17,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:19:17,908 INFO L225 Difference]: With dead ends: 75 [2020-10-28 09:19:17,909 INFO L226 Difference]: Without dead ends: 36 [2020-10-28 09:19:17,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 09:19:17,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-28 09:19:17,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-28 09:19:17,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-28 09:19:18,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-10-28 09:19:18,002 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 27 [2020-10-28 09:19:18,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:19:18,003 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-10-28 09:19:18,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 09:19:18,003 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-10-28 09:19:18,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-28 09:19:18,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:19:18,007 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] [2020-10-28 09:19:18,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 09:19:18,011 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:19:18,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:19:18,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1914210815, now seen corresponding path program 1 times [2020-10-28 09:19:18,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:19:18,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1644749768] [2020-10-28 09:19:18,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:19:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:19:18,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:18,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:18,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:18,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:18,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:18,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:18,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:18,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:19,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:19:19,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 09:19:19,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 09:19:19,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1553 [2020-10-28 09:19:19,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:19:19,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:19:19,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:19:19,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 09:19:19,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 09:19:19,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:19:19,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:19:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:19:19,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:19,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:19:19,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:19:19,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:19:19,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:19:19,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:19:19,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:19:19,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:19:19,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:19:19,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:19:19,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:19:19,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 09:19:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:19:19,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:19,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:19:19,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 09:19:19,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:19:19,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:19:19,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:19:19,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:19:19,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:19:19,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:19:19,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 09:19:19,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:19:19,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 09:19:19,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1644749768] [2020-10-28 09:19:19,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:19:19,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 09:19:19,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099531528] [2020-10-28 09:19:19,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 09:19:19,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:19:19,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 09:19:19,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:19:19,698 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 5 states. [2020-10-28 09:19:19,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:19:19,908 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2020-10-28 09:19:19,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 09:19:19,909 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-28 09:19:19,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:19:19,910 INFO L225 Difference]: With dead ends: 62 [2020-10-28 09:19:19,911 INFO L226 Difference]: Without dead ends: 41 [2020-10-28 09:19:19,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 09:19:19,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-28 09:19:19,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2020-10-28 09:19:19,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-28 09:19:19,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-10-28 09:19:19,923 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 27 [2020-10-28 09:19:19,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:19:19,923 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-10-28 09:19:19,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 09:19:19,924 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2020-10-28 09:19:19,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-28 09:19:19,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:19:19,925 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] [2020-10-28 09:19:19,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 09:19:19,926 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:19:19,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:19:19,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1148507143, now seen corresponding path program 1 times [2020-10-28 09:19:19,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:19:19,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104049747] [2020-10-28 09:19:19,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:19:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 09:19:19,958 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 09:19:19,958 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 09:19:19,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 09:19:19,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:19:19 BoogieIcfgContainer [2020-10-28 09:19:19,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 09:19:19,997 INFO L168 Benchmark]: Toolchain (without parser) took 7639.19 ms. Allocated memory was 125.8 MB in the beginning and 224.4 MB in the end (delta: 98.6 MB). Free memory was 101.5 MB in the beginning and 110.4 MB in the end (delta: -8.8 MB). Peak memory consumption was 91.1 MB. Max. memory is 8.0 GB. [2020-10-28 09:19:19,998 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory is still 85.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 09:19:20,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.63 ms. Allocated memory is still 125.8 MB. Free memory was 100.8 MB in the beginning and 90.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-28 09:19:20,001 INFO L168 Benchmark]: Boogie Preprocessor took 66.03 ms. Allocated memory is still 125.8 MB. Free memory was 90.3 MB in the beginning and 88.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-28 09:19:20,002 INFO L168 Benchmark]: RCFGBuilder took 675.28 ms. Allocated memory was 125.8 MB in the beginning and 155.2 MB in the end (delta: 29.4 MB). Free memory was 88.5 MB in the beginning and 134.9 MB in the end (delta: -46.4 MB). Peak memory consumption was 19.8 MB. Max. memory is 8.0 GB. [2020-10-28 09:19:20,004 INFO L168 Benchmark]: TraceAbstraction took 6572.75 ms. Allocated memory was 155.2 MB in the beginning and 224.4 MB in the end (delta: 69.2 MB). Free memory was 134.4 MB in the beginning and 110.4 MB in the end (delta: 24.0 MB). Peak memory consumption was 93.2 MB. Max. memory is 8.0 GB. [2020-10-28 09:19:20,017 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory is still 85.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 307.63 ms. Allocated memory is still 125.8 MB. Free memory was 100.8 MB in the beginning and 90.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 66.03 ms. Allocated memory is still 125.8 MB. Free memory was 90.3 MB in the beginning and 88.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 675.28 ms. Allocated memory was 125.8 MB in the beginning and 155.2 MB in the end (delta: 29.4 MB). Free memory was 88.5 MB in the beginning and 134.9 MB in the end (delta: -46.4 MB). Peak memory consumption was 19.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6572.75 ms. Allocated memory was 155.2 MB in the beginning and 224.4 MB in the end (delta: 69.2 MB). Free memory was 134.4 MB in the beginning and 110.4 MB in the end (delta: 24.0 MB). Peak memory consumption was 93.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a 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 sum[1]; [L29] long long *a = malloc(sizeof(long long)*N); [L30] int *b = malloc(sizeof(int)*N); [L32] sum[0] = 1 [L33] i=0 [L33] COND TRUE i