/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/ms5f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 04:30:02,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 04:30:02,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 04:30:02,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 04:30:02,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 04:30:02,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 04:30:02,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 04:30:02,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 04:30:02,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 04:30:02,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 04:30:02,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 04:30:02,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 04:30:02,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 04:30:02,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 04:30:02,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 04:30:02,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 04:30:02,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 04:30:02,339 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 04:30:02,341 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 04:30:02,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 04:30:02,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 04:30:02,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 04:30:02,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 04:30:02,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 04:30:02,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 04:30:02,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 04:30:02,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 04:30:02,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 04:30:02,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 04:30:02,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 04:30:02,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 04:30:02,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 04:30:02,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 04:30:02,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 04:30:02,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 04:30:02,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 04:30:02,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 04:30:02,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 04:30:02,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 04:30:02,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 04:30:02,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 04:30:02,367 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 [2020-08-19 04:30:02,388 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 04:30:02,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 04:30:02,390 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 04:30:02,390 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 04:30:02,390 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 04:30:02,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 04:30:02,390 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 04:30:02,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 04:30:02,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 04:30:02,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 04:30:02,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 04:30:02,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 04:30:02,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 04:30:02,392 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 04:30:02,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 04:30:02,392 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 04:30:02,392 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 04:30:02,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 04:30:02,393 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 04:30:02,393 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 04:30:02,393 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 04:30:02,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 04:30:02,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 04:30:02,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 04:30:02,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 04:30:02,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 04:30:02,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 04:30:02,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 04:30:02,395 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 04:30:02,395 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; [2020-08-19 04:30:02,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 04:30:02,728 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 04:30:02,735 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 04:30:02,737 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 04:30:02,739 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 04:30:02,739 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ms5f.c [2020-08-19 04:30:02,824 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cab86cc0d/cab336a578a2487ebf3fcee193905bc6/FLAG9ab9b87a2 [2020-08-19 04:30:03,249 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 04:30:03,249 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/ms5f.c [2020-08-19 04:30:03,255 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cab86cc0d/cab336a578a2487ebf3fcee193905bc6/FLAG9ab9b87a2 [2020-08-19 04:30:03,697 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cab86cc0d/cab336a578a2487ebf3fcee193905bc6 [2020-08-19 04:30:03,706 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 04:30:03,708 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 04:30:03,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 04:30:03,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 04:30:03,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 04:30:03,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:30:03" (1/1) ... [2020-08-19 04:30:03,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6220607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:03, skipping insertion in model container [2020-08-19 04:30:03,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:30:03" (1/1) ... [2020-08-19 04:30:03,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 04:30:03,744 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 04:30:03,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:30:03,949 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 04:30:03,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:30:04,068 INFO L208 MainTranslator]: Completed translation [2020-08-19 04:30:04,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:04 WrapperNode [2020-08-19 04:30:04,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 04:30:04,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 04:30:04,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 04:30:04,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 04:30:04,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:04" (1/1) ... [2020-08-19 04:30:04,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:04" (1/1) ... [2020-08-19 04:30:04,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:04" (1/1) ... [2020-08-19 04:30:04,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:04" (1/1) ... [2020-08-19 04:30:04,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:04" (1/1) ... [2020-08-19 04:30:04,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:04" (1/1) ... [2020-08-19 04:30:04,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:04" (1/1) ... [2020-08-19 04:30:04,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 04:30:04,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 04:30:04,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 04:30:04,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 04:30:04,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:04" (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 [2020-08-19 04:30:04,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 04:30:04,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 04:30:04,177 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-19 04:30:04,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-19 04:30:04,177 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 04:30:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 04:30:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 04:30:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-19 04:30:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-19 04:30:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 04:30:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 04:30:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 04:30:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 04:30:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 04:30:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 04:30:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 04:30:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 04:30:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 04:30:04,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 04:30:04,520 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 04:30:04,521 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-19 04:30:04,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:30:04 BoogieIcfgContainer [2020-08-19 04:30:04,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 04:30:04,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 04:30:04,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 04:30:04,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 04:30:04,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 04:30:03" (1/3) ... [2020-08-19 04:30:04,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468667d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:30:04, skipping insertion in model container [2020-08-19 04:30:04,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:04" (2/3) ... [2020-08-19 04:30:04,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468667d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:30:04, skipping insertion in model container [2020-08-19 04:30:04,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:30:04" (3/3) ... [2020-08-19 04:30:04,532 INFO L109 eAbstractionObserver]: Analyzing ICFG ms5f.c [2020-08-19 04:30:04,542 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 04:30:04,548 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 04:30:04,561 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 04:30:04,581 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 04:30:04,581 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 04:30:04,581 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 04:30:04,581 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 04:30:04,581 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 04:30:04,582 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 04:30:04,582 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 04:30:04,582 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 04:30:04,598 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-08-19 04:30:04,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-19 04:30:04,604 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:30:04,605 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] [2020-08-19 04:30:04,605 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:30:04,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:30:04,610 INFO L82 PathProgramCache]: Analyzing trace with hash -432131487, now seen corresponding path program 1 times [2020-08-19 04:30:04,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:30:04,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311837231] [2020-08-19 04:30:04,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:30:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:04,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:30:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:04,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 04:30:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:04,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:30:04,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [311837231] [2020-08-19 04:30:04,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:30:04,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-19 04:30:04,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047833631] [2020-08-19 04:30:04,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-19 04:30:04,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:30:04,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-19 04:30:04,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 04:30:04,853 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states. [2020-08-19 04:30:04,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:30:04,958 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2020-08-19 04:30:04,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-19 04:30:04,960 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-08-19 04:30:04,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:30:04,968 INFO L225 Difference]: With dead ends: 54 [2020-08-19 04:30:04,968 INFO L226 Difference]: Without dead ends: 25 [2020-08-19 04:30:04,972 INFO L675 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 [2020-08-19 04:30:04,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-08-19 04:30:05,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-08-19 04:30:05,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-08-19 04:30:05,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-08-19 04:30:05,006 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 21 [2020-08-19 04:30:05,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:30:05,007 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-08-19 04:30:05,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-19 04:30:05,007 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-08-19 04:30:05,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-19 04:30:05,008 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:30:05,008 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] [2020-08-19 04:30:05,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 04:30:05,009 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:30:05,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:30:05,010 INFO L82 PathProgramCache]: Analyzing trace with hash -173966049, now seen corresponding path program 1 times [2020-08-19 04:30:05,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:30:05,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484661673] [2020-08-19 04:30:05,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:30:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:05,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:30:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:05,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 04:30:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:05,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:30:05,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484661673] [2020-08-19 04:30:05,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:30:05,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 04:30:05,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598196128] [2020-08-19 04:30:05,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 04:30:05,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:30:05,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 04:30:05,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 04:30:05,132 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 5 states. [2020-08-19 04:30:05,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:30:05,240 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2020-08-19 04:30:05,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 04:30:05,241 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-08-19 04:30:05,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:30:05,242 INFO L225 Difference]: With dead ends: 40 [2020-08-19 04:30:05,242 INFO L226 Difference]: Without dead ends: 30 [2020-08-19 04:30:05,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:30:05,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-08-19 04:30:05,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-08-19 04:30:05,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-08-19 04:30:05,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2020-08-19 04:30:05,253 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 21 [2020-08-19 04:30:05,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:30:05,253 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2020-08-19 04:30:05,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 04:30:05,253 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2020-08-19 04:30:05,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-19 04:30:05,254 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:30:05,255 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] [2020-08-19 04:30:05,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 04:30:05,255 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:30:05,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:30:05,256 INFO L82 PathProgramCache]: Analyzing trace with hash -445719797, now seen corresponding path program 1 times [2020-08-19 04:30:05,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:30:05,256 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949762464] [2020-08-19 04:30:05,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:30:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 04:30:05,307 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 04:30:05,307 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 04:30:05,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 04:30:05,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 04:30:05 BoogieIcfgContainer [2020-08-19 04:30:05,327 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 04:30:05,330 INFO L168 Benchmark]: Toolchain (without parser) took 1620.91 ms. Allocated memory was 141.0 MB in the beginning and 202.9 MB in the end (delta: 61.9 MB). Free memory was 103.6 MB in the beginning and 110.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. [2020-08-19 04:30:05,331 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.2 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-08-19 04:30:05,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.95 ms. Allocated memory was 141.0 MB in the beginning and 202.9 MB in the end (delta: 61.9 MB). Free memory was 103.6 MB in the beginning and 181.6 MB in the end (delta: -78.0 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-08-19 04:30:05,333 INFO L168 Benchmark]: Boogie Preprocessor took 40.09 ms. Allocated memory is still 202.9 MB. Free memory was 181.6 MB in the beginning and 179.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-08-19 04:30:05,334 INFO L168 Benchmark]: RCFGBuilder took 414.76 ms. Allocated memory is still 202.9 MB. Free memory was 179.4 MB in the beginning and 162.9 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2020-08-19 04:30:05,335 INFO L168 Benchmark]: TraceAbstraction took 801.20 ms. Allocated memory is still 202.9 MB. Free memory was 162.0 MB in the beginning and 110.9 MB in the end (delta: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 7.1 GB. [2020-08-19 04:30:05,339 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.2 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 357.95 ms. Allocated memory was 141.0 MB in the beginning and 202.9 MB in the end (delta: 61.9 MB). Free memory was 103.6 MB in the beginning and 181.6 MB in the end (delta: -78.0 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.09 ms. Allocated memory is still 202.9 MB. Free memory was 181.6 MB in the beginning and 179.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 414.76 ms. Allocated memory is still 202.9 MB. Free memory was 179.4 MB in the beginning and 162.9 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 801.20 ms. Allocated memory is still 202.9 MB. Free memory was 162.0 MB in the beginning and 110.9 MB in the end (delta: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] long long sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] i=0 [L29] COND TRUE i 4*N) [L13] COND TRUE !(cond) [L13] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 39 SDslu, 11 SDs, 0 SdLazy, 64 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 1480 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...