/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=BIGGEST --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 20:41:34,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:41:34,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:41:34,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:41:34,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:41:34,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:41:34,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:41:34,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:41:34,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:41:34,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:41:34,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:41:34,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:41:34,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:41:34,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:41:34,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:41:34,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:41:34,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:41:34,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:41:34,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:41:34,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:41:34,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:41:34,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:41:34,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:41:34,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:41:34,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:41:34,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:41:34,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:41:34,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:41:34,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:41:34,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:41:34,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:41:34,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:41:34,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:41:34,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:41:34,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:41:34,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:41:34,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:41:34,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:41:34,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:41:34,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:41:34,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:41:34,491 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 20:41:34,542 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:41:34,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:41:34,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:41:34,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:41:34,546 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:41:34,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:41:34,546 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:41:34,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:41:34,547 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:41:34,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:41:34,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:41:34,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:41:34,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:41:34,549 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:41:34,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:41:34,549 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:41:34,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:41:34,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:41:34,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:41:34,550 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:41:34,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:41:34,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:41:34,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:41:34,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:41:34,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:41:34,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:41:34,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:41:34,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:41:34,552 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:41:34,553 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:41:35,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:41:35,036 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:41:35,040 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:41:35,042 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:41:35,043 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:41:35,044 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina3f.c [2020-09-24 20:41:35,127 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d5dd038e/f0ea9263e2a048029db3a0cf455be7dc/FLAG43750ba5d [2020-09-24 20:41:35,678 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:41:35,679 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/sina3f.c [2020-09-24 20:41:35,688 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d5dd038e/f0ea9263e2a048029db3a0cf455be7dc/FLAG43750ba5d [2020-09-24 20:41:36,042 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d5dd038e/f0ea9263e2a048029db3a0cf455be7dc [2020-09-24 20:41:36,057 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:41:36,064 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:41:36,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:41:36,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:41:36,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:41:36,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:41:36" (1/1) ... [2020-09-24 20:41:36,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cbac012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:36, skipping insertion in model container [2020-09-24 20:41:36,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:41:36" (1/1) ... [2020-09-24 20:41:36,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:41:36,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:41:36,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:41:36,372 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:41:36,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:41:36,416 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:41:36,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:36 WrapperNode [2020-09-24 20:41:36,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:41:36,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:41:36,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:41:36,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:41:36,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:36" (1/1) ... [2020-09-24 20:41:36,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:36" (1/1) ... [2020-09-24 20:41:36,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:36" (1/1) ... [2020-09-24 20:41:36,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:36" (1/1) ... [2020-09-24 20:41:36,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:36" (1/1) ... [2020-09-24 20:41:36,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:36" (1/1) ... [2020-09-24 20:41:36,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:36" (1/1) ... [2020-09-24 20:41:36,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:41:36,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:41:36,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:41:36,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:41:36,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:36" (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 20:41:36,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:41:36,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:41:36,619 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 20:41:36,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 20:41:36,620 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:41:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:41:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 20:41:36,621 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 20:41:36,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 20:41:36,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:41:36,622 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:41:36,622 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:41:36,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:41:36,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:41:36,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:41:36,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:41:36,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:41:36,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:41:36,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:41:36,981 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:41:36,981 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:41:36,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:41:36 BoogieIcfgContainer [2020-09-24 20:41:36,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:41:36,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:41:36,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:41:36,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:41:36,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:41:36" (1/3) ... [2020-09-24 20:41:36,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1ec19f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:41:36, skipping insertion in model container [2020-09-24 20:41:36,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:36" (2/3) ... [2020-09-24 20:41:36,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1ec19f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:41:36, skipping insertion in model container [2020-09-24 20:41:36,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:41:36" (3/3) ... [2020-09-24 20:41:36,996 INFO L109 eAbstractionObserver]: Analyzing ICFG sina3f.c [2020-09-24 20:41:37,008 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:41:37,019 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:41:37,043 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:41:37,075 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:41:37,075 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:41:37,075 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:41:37,076 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:41:37,076 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:41:37,076 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:41:37,076 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:41:37,076 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:41:37,101 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2020-09-24 20:41:37,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-09-24 20:41:37,110 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:41:37,111 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 20:41:37,112 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:41:37,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:41:37,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1651935650, now seen corresponding path program 1 times [2020-09-24 20:41:37,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:41:37,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [195727269] [2020-09-24 20:41:37,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:41:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:37,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:37,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:37,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:37,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:37,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:38,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:38,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:38,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 20:41:38,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:41:38,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1197 [2020-09-24 20:41:38,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:38,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:41:38,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 20:41:38,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:41:38,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 20:41:38,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:41:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:38,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:38,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:38,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:41:38,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:38,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 20:41:38,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:38,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:38,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:38,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:38,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:41:38,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 20:41:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:38,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:38,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:38,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:41:38,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:38,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:41:38,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:38,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:38,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:38,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:38,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:41:38,719 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 20:41:38,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [195727269] [2020-09-24 20:41:38,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:41:38,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 20:41:38,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480163306] [2020-09-24 20:41:38,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 20:41:38,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:41:38,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 20:41:38,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 20:41:38,762 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 6 states. [2020-09-24 20:41:39,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:41:39,250 INFO L93 Difference]: Finished difference Result 188 states and 230 transitions. [2020-09-24 20:41:39,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 20:41:39,252 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-09-24 20:41:39,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:41:39,266 INFO L225 Difference]: With dead ends: 188 [2020-09-24 20:41:39,266 INFO L226 Difference]: Without dead ends: 100 [2020-09-24 20:41:39,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:41:39,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-09-24 20:41:39,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 74. [2020-09-24 20:41:39,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-24 20:41:39,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 78 transitions. [2020-09-24 20:41:39,338 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 78 transitions. Word has length 39 [2020-09-24 20:41:39,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:41:39,339 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 78 transitions. [2020-09-24 20:41:39,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 20:41:39,340 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 78 transitions. [2020-09-24 20:41:39,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-24 20:41:39,342 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:41:39,342 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 20:41:39,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:41:39,343 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:41:39,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:41:39,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1675406230, now seen corresponding path program 1 times [2020-09-24 20:41:39,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:41:39,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1021473404] [2020-09-24 20:41:39,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:41:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 20:41:39,395 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 20:41:39,396 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 20:41:39,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:41:39,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:41:39 BoogieIcfgContainer [2020-09-24 20:41:39,426 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 20:41:39,430 INFO L168 Benchmark]: Toolchain (without parser) took 3369.72 ms. Allocated memory was 141.6 MB in the beginning and 233.8 MB in the end (delta: 92.3 MB). Free memory was 104.3 MB in the beginning and 136.2 MB in the end (delta: -31.9 MB). Peak memory consumption was 60.4 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:39,431 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 20:41:39,432 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.08 ms. Allocated memory is still 141.6 MB. Free memory was 103.6 MB in the beginning and 93.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:39,433 INFO L168 Benchmark]: Boogie Preprocessor took 124.40 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 93.1 MB in the beginning and 181.9 MB in the end (delta: -88.8 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:39,434 INFO L168 Benchmark]: RCFGBuilder took 444.53 ms. Allocated memory is still 204.5 MB. Free memory was 181.9 MB in the beginning and 160.0 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:39,435 INFO L168 Benchmark]: TraceAbstraction took 2438.28 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 160.0 MB in the beginning and 136.2 MB in the end (delta: 23.8 MB). Peak memory consumption was 53.2 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:39,439 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 349.08 ms. Allocated memory is still 141.6 MB. Free memory was 103.6 MB in the beginning and 93.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.40 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 93.1 MB in the beginning and 181.9 MB in the end (delta: -88.8 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 444.53 ms. Allocated memory is still 204.5 MB. Free memory was 181.9 MB in the beginning and 160.0 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2438.28 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 160.0 MB in the beginning and 136.2 MB in the end (delta: 23.8 MB). Peak memory consumption was 53.2 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