/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 --rcfgbuilder.size.of.a.code.block SingleStatement --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=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/sina3f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:49:41,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:49:41,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:49:41,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:49:41,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:49:41,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:49:41,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:49:41,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:49:41,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:49:41,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:49:41,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:49:41,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:49:41,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:49:41,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:49:41,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:49:41,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:49:41,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:49:41,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:49:41,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:49:41,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:49:41,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:49:41,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:49:41,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:49:41,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:49:41,279 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:49:41,280 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:49:41,280 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:49:41,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:49:41,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:49:41,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:49:41,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:49:41,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:49:41,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:49:41,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:49:41,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:49:41,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:49:41,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:49:41,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:49:41,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:49:41,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:49:41,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:49:41,291 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 [2020-09-24 21:49:41,321 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:49:41,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:49:41,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:49:41,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:49:41,324 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:49:41,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:49:41,324 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:49:41,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:49:41,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:49:41,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:49:41,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:49:41,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:49:41,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:49:41,331 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:49:41,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:49:41,332 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:49:41,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:49:41,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:49:41,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:49:41,333 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:49:41,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:49:41,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:49:41,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:49:41,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:49:41,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:49:41,336 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:49:41,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:49:41,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:49:41,337 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:49:41,337 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.rcfgbuilder: Size of a code block -> SingleStatement 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=LOWLEXORDER;log-additional-information=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=LOWLEXORDER;log-additional-information=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=LOWLEXORDER;log-additional-information=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=LOWLEXORDER;log-additional-information=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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:49:41,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:49:41,871 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:49:41,876 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:49:41,878 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:49:41,878 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:49:41,879 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina3f.c [2020-09-24 21:49:41,975 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a421b776/c1a0df18afb34706b9ed0da46b2bba2d/FLAG53e7e7c57 [2020-09-24 21:49:42,508 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:49:42,509 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/sina3f.c [2020-09-24 21:49:42,519 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a421b776/c1a0df18afb34706b9ed0da46b2bba2d/FLAG53e7e7c57 [2020-09-24 21:49:42,872 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a421b776/c1a0df18afb34706b9ed0da46b2bba2d [2020-09-24 21:49:42,887 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:49:42,897 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:49:42,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:49:42,902 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:49:42,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:49:42,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:49:42" (1/1) ... [2020-09-24 21:49:42,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5035f6b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:42, skipping insertion in model container [2020-09-24 21:49:42,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:49:42" (1/1) ... [2020-09-24 21:49:42,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:49:42,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:49:43,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:49:43,221 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:49:43,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:49:43,353 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:49:43,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:43 WrapperNode [2020-09-24 21:49:43,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:49:43,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:49:43,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:49:43,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:49:43,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:43" (1/1) ... [2020-09-24 21:49:43,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:43" (1/1) ... [2020-09-24 21:49:43,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:43" (1/1) ... [2020-09-24 21:49:43,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:43" (1/1) ... [2020-09-24 21:49:43,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:43" (1/1) ... [2020-09-24 21:49:43,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:43" (1/1) ... [2020-09-24 21:49:43,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:43" (1/1) ... [2020-09-24 21:49:43,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:49:43,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:49:43,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:49:43,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:49:43,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:43" (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 [2020-09-24 21:49:43,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:49:43,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:49:43,484 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 21:49:43,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 21:49:43,484 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:49:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:49:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 21:49:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 21:49:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 21:49:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:49:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:49:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:49:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:49:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:49:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:49:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:49:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:49:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:49:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:49:43,856 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:49:43,856 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:49:43,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:49:43 BoogieIcfgContainer [2020-09-24 21:49:43,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:49:43,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:49:43,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:49:43,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:49:43,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:49:42" (1/3) ... [2020-09-24 21:49:43,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@655c6dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:49:43, skipping insertion in model container [2020-09-24 21:49:43,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:43" (2/3) ... [2020-09-24 21:49:43,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@655c6dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:49:43, skipping insertion in model container [2020-09-24 21:49:43,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:49:43" (3/3) ... [2020-09-24 21:49:43,881 INFO L109 eAbstractionObserver]: Analyzing ICFG sina3f.c [2020-09-24 21:49:43,906 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:49:43,918 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:49:43,941 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:49:43,973 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:49:43,973 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:49:43,973 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:49:43,974 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:49:43,974 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:49:43,974 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:49:43,974 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:49:43,974 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:49:44,001 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2020-09-24 21:49:44,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-09-24 21:49:44,011 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:49:44,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:49:44,013 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:49:44,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:49:44,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1651935650, now seen corresponding path program 1 times [2020-09-24 21:49:44,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:49:44,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327651516] [2020-09-24 21:49:44,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:49:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:44,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:44,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:44,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:44,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:44,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:44,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:45,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:45,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 21:49:45,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:49:45,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1174 [2020-09-24 21:49:45,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:45,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:49:45,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 21:49:45,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 21:49:45,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 21:49:45,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:49:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:45,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:45,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:45,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:49:45,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:45,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:49:45,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:45,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:49:45,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:45,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:49:45,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:49:45,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 21:49:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:45,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:45,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:45,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:49:45,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:45,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:49:45,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:45,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:49:45,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:45,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:49:45,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:49:45,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:49:45,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [327651516] [2020-09-24 21:49:45,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:49:45,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:49:45,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675079889] [2020-09-24 21:49:45,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:49:45,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:49:45,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:49:45,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:49:45,653 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 5 states. [2020-09-24 21:49:46,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:49:46,045 INFO L93 Difference]: Finished difference Result 150 states and 182 transitions. [2020-09-24 21:49:46,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 21:49:46,048 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-09-24 21:49:46,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:49:46,060 INFO L225 Difference]: With dead ends: 150 [2020-09-24 21:49:46,061 INFO L226 Difference]: Without dead ends: 75 [2020-09-24 21:49:46,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:49:46,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-09-24 21:49:46,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2020-09-24 21:49:46,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-24 21:49:46,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 78 transitions. [2020-09-24 21:49:46,122 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 78 transitions. Word has length 39 [2020-09-24 21:49:46,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:49:46,123 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 78 transitions. [2020-09-24 21:49:46,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:49:46,123 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 78 transitions. [2020-09-24 21:49:46,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-24 21:49:46,126 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:49:46,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2020-09-24 21:49:46,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:49:46,127 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:49:46,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:49:46,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1675406230, now seen corresponding path program 1 times [2020-09-24 21:49:46,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:49:46,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691280167] [2020-09-24 21:49:46,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:49:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 21:49:46,168 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 21:49:46,169 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 21:49:46,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:49:46,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:49:46 BoogieIcfgContainer [2020-09-24 21:49:46,200 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:49:46,204 INFO L168 Benchmark]: Toolchain (without parser) took 3313.75 ms. Allocated memory was 137.9 MB in the beginning and 230.2 MB in the end (delta: 92.3 MB). Free memory was 99.3 MB in the beginning and 150.9 MB in the end (delta: -51.6 MB). Peak memory consumption was 40.7 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:46,205 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 137.9 MB. Free memory was 118.1 MB in the beginning and 117.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 21:49:46,207 INFO L168 Benchmark]: CACSL2BoogieTranslator took 453.59 ms. Allocated memory was 137.9 MB in the beginning and 199.2 MB in the end (delta: 61.3 MB). Free memory was 98.6 MB in the beginning and 178.1 MB in the end (delta: -79.4 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:46,207 INFO L168 Benchmark]: Boogie Preprocessor took 52.91 ms. Allocated memory is still 199.2 MB. Free memory was 178.1 MB in the beginning and 175.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:46,208 INFO L168 Benchmark]: RCFGBuilder took 453.54 ms. Allocated memory is still 199.2 MB. Free memory was 175.7 MB in the beginning and 153.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:46,209 INFO L168 Benchmark]: TraceAbstraction took 2337.01 ms. Allocated memory was 199.2 MB in the beginning and 230.2 MB in the end (delta: 30.9 MB). Free memory was 153.8 MB in the beginning and 150.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:46,213 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 137.9 MB. Free memory was 118.1 MB in the beginning and 117.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 453.59 ms. Allocated memory was 137.9 MB in the beginning and 199.2 MB in the end (delta: 61.3 MB). Free memory was 98.6 MB in the beginning and 178.1 MB in the end (delta: -79.4 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.91 ms. Allocated memory is still 199.2 MB. Free memory was 178.1 MB in the beginning and 175.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 453.54 ms. Allocated memory is still 199.2 MB. Free memory was 175.7 MB in the beginning and 153.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2337.01 ms. Allocated memory was 199.2 MB in the beginning and 230.2 MB in the end (delta: 30.9 MB). Free memory was 153.8 MB in the beginning and 150.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 33.8 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] long long *a = malloc(sizeof(long long)*N); [L28] int *b = malloc(sizeof(int)*N); [L30] sum[0] = 1 [L31] i=0 [L31] COND TRUE i