/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=NARROWEST --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/res2of.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:18:25,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:18:25,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:18:25,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:18:25,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:18:25,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:18:25,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:18:25,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:18:25,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:18:25,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:18:25,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:18:25,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:18:25,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:18:25,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:18:25,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:18:25,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:18:25,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:18:25,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:18:25,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:18:25,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:18:25,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:18:25,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:18:25,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:18:25,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:18:25,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:18:25,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:18:25,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:18:25,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:18:25,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:18:25,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:18:25,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:18:25,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:18:25,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:18:25,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:18:25,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:18:25,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:18:25,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:18:25,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:18:25,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:18:25,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:18:25,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:18:25,882 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 [2020-09-25 02:18:25,908 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:18:25,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:18:25,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:18:25,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:18:25,910 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:18:25,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:18:25,910 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:18:25,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:18:25,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:18:25,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:18:25,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:18:25,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:18:25,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:18:25,912 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:18:25,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:18:25,912 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:18:25,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:18:25,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:18:25,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:18:25,913 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:18:25,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:18:25,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:18:25,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:18:25,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:18:25,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:18:25,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:18:25,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:18:25,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:18:25,915 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:18:25,915 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 02:18:26,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:18:26,397 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:18:26,403 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:18:26,406 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:18:26,406 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:18:26,408 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/res2of.c [2020-09-25 02:18:26,485 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3244cc392/0c4d490f5b0c44f8a0856b960447b70f/FLAG008e5f222 [2020-09-25 02:18:27,023 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:18:27,028 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/res2of.c [2020-09-25 02:18:27,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3244cc392/0c4d490f5b0c44f8a0856b960447b70f/FLAG008e5f222 [2020-09-25 02:18:27,328 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3244cc392/0c4d490f5b0c44f8a0856b960447b70f [2020-09-25 02:18:27,343 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:18:27,348 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:18:27,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:18:27,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:18:27,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:18:27,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:27" (1/1) ... [2020-09-25 02:18:27,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@434f45a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:27, skipping insertion in model container [2020-09-25 02:18:27,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:27" (1/1) ... [2020-09-25 02:18:27,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:18:27,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:18:27,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:18:27,744 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:18:27,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:18:27,788 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:18:27,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:27 WrapperNode [2020-09-25 02:18:27,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:18:27,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:18:27,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:18:27,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:18:27,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:27" (1/1) ... [2020-09-25 02:18:27,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:27" (1/1) ... [2020-09-25 02:18:27,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:27" (1/1) ... [2020-09-25 02:18:27,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:27" (1/1) ... [2020-09-25 02:18:27,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:27" (1/1) ... [2020-09-25 02:18:27,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:27" (1/1) ... [2020-09-25 02:18:27,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:27" (1/1) ... [2020-09-25 02:18:27,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:18:27,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:18:27,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:18:27,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:18:27,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:27" (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 [2020-09-25 02:18:28,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:18:28,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:18:28,021 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 02:18:28,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 02:18:28,021 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:18:28,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:18:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 02:18:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 02:18:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 02:18:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:18:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:18:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:18:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:18:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:18:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:18:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:18:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:18:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:18:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:18:28,452 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:18:28,452 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-25 02:18:28,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:28 BoogieIcfgContainer [2020-09-25 02:18:28,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:18:28,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:18:28,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:18:28,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:18:28,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:18:27" (1/3) ... [2020-09-25 02:18:28,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b65a8b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:28, skipping insertion in model container [2020-09-25 02:18:28,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:27" (2/3) ... [2020-09-25 02:18:28,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b65a8b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:28, skipping insertion in model container [2020-09-25 02:18:28,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:28" (3/3) ... [2020-09-25 02:18:28,468 INFO L109 eAbstractionObserver]: Analyzing ICFG res2of.c [2020-09-25 02:18:28,481 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:18:28,492 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:18:28,516 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:18:28,547 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:18:28,547 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:18:28,547 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:18:28,547 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:18:28,547 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:18:28,547 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:18:28,547 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:18:28,548 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:18:28,570 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2020-09-25 02:18:28,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 02:18:28,579 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:18:28,580 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] [2020-09-25 02:18:28,581 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:18:28,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:18:28,587 INFO L82 PathProgramCache]: Analyzing trace with hash -386797637, now seen corresponding path program 1 times [2020-09-25 02:18:28,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:18:28,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1021920205] [2020-09-25 02:18:28,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:18:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:28,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:28,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:28,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:29,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:29,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:29,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:29,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:31,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:31,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 02:18:31,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 02:18:31,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2436 [2020-09-25 02:18:31,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:31,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:18:31,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 02:18:31,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:18:31,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:18:31,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:18:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:31,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:31,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:31,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:18:31,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:18:31,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:18:31,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:31,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:18:31,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:18:31,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:18:31,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:18:31,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 02:18:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:31,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:31,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:31,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:18:31,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:18:31,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:18:31,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:31,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:18:31,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:18:31,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:18:31,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:18:31,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:18:31,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1021920205] [2020-09-25 02:18:31,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:18:31,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 02:18:31,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519325494] [2020-09-25 02:18:31,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 02:18:31,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:18:31,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 02:18:31,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 02:18:31,389 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 3 states. [2020-09-25 02:18:31,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:18:31,677 INFO L93 Difference]: Finished difference Result 167 states and 194 transitions. [2020-09-25 02:18:31,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 02:18:31,679 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2020-09-25 02:18:31,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:18:31,697 INFO L225 Difference]: With dead ends: 167 [2020-09-25 02:18:31,697 INFO L226 Difference]: Without dead ends: 80 [2020-09-25 02:18:31,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 02:18:31,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-25 02:18:31,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-09-25 02:18:31,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-25 02:18:31,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 85 transitions. [2020-09-25 02:18:31,776 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 85 transitions. Word has length 43 [2020-09-25 02:18:31,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:18:31,778 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 85 transitions. [2020-09-25 02:18:31,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 02:18:31,778 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 85 transitions. [2020-09-25 02:18:31,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 02:18:31,782 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:18:31,783 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] [2020-09-25 02:18:31,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:18:31,784 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:18:31,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:18:31,786 INFO L82 PathProgramCache]: Analyzing trace with hash 614001090, now seen corresponding path program 1 times [2020-09-25 02:18:31,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:18:31,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1564760282] [2020-09-25 02:18:31,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:18:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:31,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:31,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:31,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:31,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:31,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:32,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:35,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:36,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:36,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 02:18:36,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 02:18:36,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 02:18:36,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:36,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:18:36,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 02:18:36,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 02:18:36,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:18:36,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:18:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:36,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:36,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:36,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:18:36,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:18:36,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:18:36,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:36,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:18:36,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:18:36,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:18:36,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:18:36,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 02:18:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:36,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:36,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:36,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:18:36,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:18:36,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 02:18:36,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:36,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:18:36,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:18:36,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:18:36,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:18:36,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:18:36,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1564760282] [2020-09-25 02:18:36,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:18:36,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 02:18:36,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644941958] [2020-09-25 02:18:36,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:18:36,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:18:36,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:18:36,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:18:36,958 INFO L87 Difference]: Start difference. First operand 80 states and 85 transitions. Second operand 5 states. [2020-09-25 02:18:37,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:18:37,263 INFO L93 Difference]: Finished difference Result 134 states and 149 transitions. [2020-09-25 02:18:37,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 02:18:37,264 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2020-09-25 02:18:37,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:18:37,266 INFO L225 Difference]: With dead ends: 134 [2020-09-25 02:18:37,266 INFO L226 Difference]: Without dead ends: 86 [2020-09-25 02:18:37,268 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:18:37,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-25 02:18:37,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-09-25 02:18:37,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-09-25 02:18:37,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2020-09-25 02:18:37,290 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 43 [2020-09-25 02:18:37,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:18:37,290 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2020-09-25 02:18:37,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:18:37,291 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2020-09-25 02:18:37,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 02:18:37,297 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:18:37,298 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:18:37,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:18:37,299 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:18:37,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:18:37,300 INFO L82 PathProgramCache]: Analyzing trace with hash -849907375, now seen corresponding path program 1 times [2020-09-25 02:18:37,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:18:37,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1498322789] [2020-09-25 02:18:37,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:18:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 02:18:37,352 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 02:18:37,352 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 02:18:37,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:18:37,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:18:37 BoogieIcfgContainer [2020-09-25 02:18:37,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:18:37,387 INFO L168 Benchmark]: Toolchain (without parser) took 10041.08 ms. Allocated memory was 147.3 MB in the beginning and 283.1 MB in the end (delta: 135.8 MB). Free memory was 101.8 MB in the beginning and 116.9 MB in the end (delta: -15.1 MB). Peak memory consumption was 120.7 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:37,388 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 147.3 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-25 02:18:37,389 INFO L168 Benchmark]: CACSL2BoogieTranslator took 437.87 ms. Allocated memory is still 147.3 MB. Free memory was 101.2 MB in the beginning and 90.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:37,390 INFO L168 Benchmark]: Boogie Preprocessor took 153.93 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 90.4 MB in the beginning and 181.2 MB in the end (delta: -90.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:37,391 INFO L168 Benchmark]: RCFGBuilder took 514.80 ms. Allocated memory is still 203.9 MB. Free memory was 181.2 MB in the beginning and 157.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:37,392 INFO L168 Benchmark]: TraceAbstraction took 8923.65 ms. Allocated memory was 203.9 MB in the beginning and 283.1 MB in the end (delta: 79.2 MB). Free memory was 156.4 MB in the beginning and 116.9 MB in the end (delta: 39.5 MB). Peak memory consumption was 118.7 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:37,396 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 147.3 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 437.87 ms. Allocated memory is still 147.3 MB. Free memory was 101.2 MB in the beginning and 90.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 153.93 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 90.4 MB in the beginning and 181.2 MB in the end (delta: -90.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 514.80 ms. Allocated memory is still 203.9 MB. Free memory was 181.2 MB in the beginning and 157.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8923.65 ms. Allocated memory was 203.9 MB in the beginning and 283.1 MB in the end (delta: 79.2 MB). Free memory was 156.4 MB in the beginning and 116.9 MB in the end (delta: 39.5 MB). Peak memory consumption was 118.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] long long sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L28] int *b = malloc(sizeof(int)*N); [L29] int *c = malloc(sizeof(int)*N); [L31] sum[0] = 0 [L32] i=0 [L32] COND TRUE i