/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/sina5f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 10:15:39,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 10:15:39,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 10:15:39,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 10:15:39,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 10:15:39,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 10:15:39,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 10:15:39,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 10:15:39,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 10:15:39,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 10:15:39,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 10:15:39,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 10:15:39,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 10:15:39,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 10:15:39,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 10:15:39,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 10:15:39,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 10:15:39,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 10:15:39,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 10:15:39,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 10:15:39,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 10:15:39,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 10:15:39,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 10:15:39,696 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 10:15:39,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 10:15:39,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 10:15:39,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 10:15:39,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 10:15:39,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 10:15:39,706 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 10:15:39,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 10:15:39,707 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 10:15:39,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 10:15:39,709 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 10:15:39,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 10:15:39,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 10:15:39,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 10:15:39,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 10:15:39,711 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 10:15:39,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 10:15:39,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 10:15:39,715 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 10:15:39,757 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 10:15:39,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 10:15:39,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 10:15:39,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 10:15:39,760 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 10:15:39,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 10:15:39,761 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 10:15:39,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 10:15:39,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 10:15:39,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 10:15:39,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 10:15:39,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 10:15:39,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 10:15:39,763 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 10:15:39,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 10:15:39,764 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 10:15:39,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 10:15:39,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 10:15:39,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 10:15:39,765 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 10:15:39,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 10:15:39,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 10:15:39,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 10:15:39,765 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 10:15:39,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 10:15:39,766 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 10:15:39,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 10:15:39,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 10:15:39,766 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 10:15:39,767 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=true; [2020-10-12 10:15:40,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 10:15:40,073 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 10:15:40,076 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 10:15:40,078 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 10:15:40,078 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 10:15:40,079 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina5f.c [2020-10-12 10:15:40,138 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d97acf53/8dc1c8fbd442461aa17ac5dfa5453123/FLAGe847746c1 [2020-10-12 10:15:40,522 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 10:15:40,523 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/sina5f.c [2020-10-12 10:15:40,530 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d97acf53/8dc1c8fbd442461aa17ac5dfa5453123/FLAGe847746c1 [2020-10-12 10:15:40,960 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d97acf53/8dc1c8fbd442461aa17ac5dfa5453123 [2020-10-12 10:15:40,967 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 10:15:40,969 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 10:15:40,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 10:15:40,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 10:15:40,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 10:15:40,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:15:40" (1/1) ... [2020-10-12 10:15:40,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fe964b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:15:40, skipping insertion in model container [2020-10-12 10:15:40,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:15:40" (1/1) ... [2020-10-12 10:15:40,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 10:15:40,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 10:15:41,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:15:41,250 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 10:15:41,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:15:41,408 INFO L208 MainTranslator]: Completed translation [2020-10-12 10:15:41,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:15:41 WrapperNode [2020-10-12 10:15:41,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 10:15:41,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 10:15:41,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 10:15:41,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 10:15:41,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:15:41" (1/1) ... [2020-10-12 10:15:41,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:15:41" (1/1) ... [2020-10-12 10:15:41,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:15:41" (1/1) ... [2020-10-12 10:15:41,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:15:41" (1/1) ... [2020-10-12 10:15:41,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:15:41" (1/1) ... [2020-10-12 10:15:41,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:15:41" (1/1) ... [2020-10-12 10:15:41,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:15:41" (1/1) ... [2020-10-12 10:15:41,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 10:15:41,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 10:15:41,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 10:15:41,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 10:15:41,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:15:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 10:15:41,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 10:15:41,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 10:15:41,533 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 10:15:41,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-12 10:15:41,534 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 10:15:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 10:15:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 10:15:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 10:15:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-12 10:15:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 10:15:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 10:15:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 10:15:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 10:15:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 10:15:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 10:15:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 10:15:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 10:15:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 10:15:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 10:15:41,835 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 10:15:41,835 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-12 10:15:41,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:15:41 BoogieIcfgContainer [2020-10-12 10:15:41,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 10:15:41,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 10:15:41,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 10:15:41,845 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 10:15:41,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:15:40" (1/3) ... [2020-10-12 10:15:41,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@715b5bec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:15:41, skipping insertion in model container [2020-10-12 10:15:41,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:15:41" (2/3) ... [2020-10-12 10:15:41,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@715b5bec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:15:41, skipping insertion in model container [2020-10-12 10:15:41,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:15:41" (3/3) ... [2020-10-12 10:15:41,849 INFO L109 eAbstractionObserver]: Analyzing ICFG sina5f.c [2020-10-12 10:15:41,874 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 10:15:41,892 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 10:15:41,908 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 10:15:41,935 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 10:15:41,935 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 10:15:41,935 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 10:15:41,935 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 10:15:41,936 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 10:15:41,936 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 10:15:41,936 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 10:15:41,936 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 10:15:41,954 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-10-12 10:15:41,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-12 10:15:41,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:15:41,962 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] [2020-10-12 10:15:41,962 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:15:41,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:15:41,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1994596369, now seen corresponding path program 1 times [2020-10-12 10:15:41,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:15:41,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [889946200] [2020-10-12 10:15:41,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:15:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:15:42,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:15:42,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:15:42,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:15:42,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:15:42,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:15:42,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:15:42,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:15:42,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:15:42,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:15:43,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:15:43,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 10:15:43,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 10:15:43,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1275 [2020-10-12 10:15:43,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:15:43,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:15:43,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 10:15:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 10:15:43,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 10:15:43,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:15:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:15:43,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:15:43,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:15:43,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:15:43,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:15:43,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 10:15:43,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:15:43,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:15:43,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:15:43,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:15:43,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 10:15:43,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-12 10:15:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:15:43,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:15:43,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:15:43,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:15:43,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:15:43,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:15:43,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:15:43,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:15:43,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:15:43,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:15:43,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:15:43,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:15:43,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 10:15:43,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [889946200] [2020-10-12 10:15:43,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:15:43,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 10:15:43,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50329516] [2020-10-12 10:15:43,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 10:15:43,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:15:43,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 10:15:43,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 10:15:43,573 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 6 states. [2020-10-12 10:15:43,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:15:43,943 INFO L93 Difference]: Finished difference Result 107 states and 157 transitions. [2020-10-12 10:15:43,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 10:15:43,945 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-10-12 10:15:43,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:15:43,957 INFO L225 Difference]: With dead ends: 107 [2020-10-12 10:15:43,957 INFO L226 Difference]: Without dead ends: 52 [2020-10-12 10:15:43,962 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 [2020-10-12 10:15:43,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-12 10:15:44,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 43. [2020-10-12 10:15:44,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-12 10:15:44,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2020-10-12 10:15:44,015 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 28 [2020-10-12 10:15:44,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:15:44,015 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2020-10-12 10:15:44,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 10:15:44,016 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2020-10-12 10:15:44,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-12 10:15:44,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:15:44,018 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] [2020-10-12 10:15:44,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 10:15:44,019 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:15:44,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:15:44,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1357692925, now seen corresponding path program 1 times [2020-10-12 10:15:44,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:15:44,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406574] [2020-10-12 10:15:44,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:15:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 10:15:44,064 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 10:15:44,065 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 10:15:44,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 10:15:44,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:15:44 BoogieIcfgContainer [2020-10-12 10:15:44,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 10:15:44,094 INFO L168 Benchmark]: Toolchain (without parser) took 3124.54 ms. Allocated memory was 147.8 MB in the beginning and 243.8 MB in the end (delta: 95.9 MB). Free memory was 103.6 MB in the beginning and 213.6 MB in the end (delta: -109.9 MB). Peak memory consumption was 100.3 MB. Max. memory is 7.1 GB. [2020-10-12 10:15:44,095 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-12 10:15:44,097 INFO L168 Benchmark]: CACSL2BoogieTranslator took 440.78 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 103.4 MB in the beginning and 183.7 MB in the end (delta: -80.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-10-12 10:15:44,098 INFO L168 Benchmark]: Boogie Preprocessor took 62.27 ms. Allocated memory is still 205.0 MB. Free memory was 183.7 MB in the beginning and 181.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-10-12 10:15:44,099 INFO L168 Benchmark]: RCFGBuilder took 367.13 ms. Allocated memory is still 205.0 MB. Free memory was 181.4 MB in the beginning and 161.4 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-10-12 10:15:44,100 INFO L168 Benchmark]: TraceAbstraction took 2249.63 ms. Allocated memory was 205.0 MB in the beginning and 243.8 MB in the end (delta: 38.8 MB). Free memory was 160.8 MB in the beginning and 213.6 MB in the end (delta: -52.8 MB). Peak memory consumption was 100.3 MB. Max. memory is 7.1 GB. [2020-10-12 10:15:44,103 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 440.78 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 103.4 MB in the beginning and 183.7 MB in the end (delta: -80.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.27 ms. Allocated memory is still 205.0 MB. Free memory was 183.7 MB in the beginning and 181.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 367.13 ms. Allocated memory is still 205.0 MB. Free memory was 181.4 MB in the beginning and 161.4 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2249.63 ms. Allocated memory was 205.0 MB in the beginning and 243.8 MB in the end (delta: 38.8 MB). Free memory was 160.8 MB in the beginning and 213.6 MB in the end (delta: -52.8 MB). Peak memory consumption was 100.3 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] long long *b = malloc(sizeof(long long)*N); [L30] sum[0] = 0 [L31] i=0 [L31] COND TRUE i