/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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 language data_model -i ../../../trunk/examples/svcomp/array-patterns/array3_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:06:22,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:06:22,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:06:22,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:06:22,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:06:22,759 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:06:22,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:06:22,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:06:22,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:06:22,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:06:22,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:06:22,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:06:22,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:06:22,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:06:22,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:06:22,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:06:22,792 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:06:22,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:06:22,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:06:22,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:06:22,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:06:22,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:06:22,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:06:22,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:06:22,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:06:22,867 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:06:22,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:06:22,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:06:22,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:06:22,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:06:22,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:06:22,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:06:22,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:06:22,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:06:22,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:06:22,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:06:22,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:06:22,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:06:22,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:06:22,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:06:22,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:06:22,896 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 [2020-10-29 04:06:22,943 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:06:22,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:06:22,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:06:22,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:06:22,946 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:06:22,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:06:22,946 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:06:22,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:06:22,947 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:06:22,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:06:22,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:06:22,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:06:22,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:06:22,948 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:06:22,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:06:22,948 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:06:22,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:06:22,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:06:22,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:06:22,949 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:06:22,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:06:22,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:06:22,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:06:22,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:06:22,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:06:22,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:06:22,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:06:22,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:06:22,951 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:06:22,951 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:06:23,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:06:23,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:06:23,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:06:23,427 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:06:23,428 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:06:23,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-patterns/array3_pattern.c [2020-10-29 04:06:23,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2db4ef68e/6cb1852227cf4717afc0849483bfeebb/FLAG2b9c35023 [2020-10-29 04:06:24,169 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:06:24,170 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-patterns/array3_pattern.c [2020-10-29 04:06:24,180 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2db4ef68e/6cb1852227cf4717afc0849483bfeebb/FLAG2b9c35023 [2020-10-29 04:06:24,491 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2db4ef68e/6cb1852227cf4717afc0849483bfeebb [2020-10-29 04:06:24,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:06:24,501 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:06:24,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:06:24,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:06:24,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:06:24,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:06:24" (1/1) ... [2020-10-29 04:06:24,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@447c6b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:24, skipping insertion in model container [2020-10-29 04:06:24,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:06:24" (1/1) ... [2020-10-29 04:06:24,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:06:24,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:06:24,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:06:24,745 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:06:24,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:06:24,799 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:06:24,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:24 WrapperNode [2020-10-29 04:06:24,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:06:24,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:06:24,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:06:24,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:06:24,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:24" (1/1) ... [2020-10-29 04:06:24,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:24" (1/1) ... [2020-10-29 04:06:24,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:24" (1/1) ... [2020-10-29 04:06:24,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:24" (1/1) ... [2020-10-29 04:06:24,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:24" (1/1) ... [2020-10-29 04:06:24,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:24" (1/1) ... [2020-10-29 04:06:24,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:24" (1/1) ... [2020-10-29 04:06:24,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:06:24,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:06:24,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:06:24,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:06:24,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:24" (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 [2020-10-29 04:06:25,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:06:25,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:06:25,007 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:06:25,008 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 04:06:25,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 04:06:25,008 INFO L138 BoogieDeclarations]: Found implementation of procedure square [2020-10-29 04:06:25,009 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:06:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:06:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:06:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:06:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:06:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 04:06:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 04:06:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 04:06:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2020-10-29 04:06:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure square [2020-10-29 04:06:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:06:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:06:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:06:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:06:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:06:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:06:25,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:06:25,635 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:06:25,635 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-29 04:06:25,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:06:25 BoogieIcfgContainer [2020-10-29 04:06:25,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:06:25,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:06:25,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:06:25,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:06:25,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:06:24" (1/3) ... [2020-10-29 04:06:25,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c23532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:06:25, skipping insertion in model container [2020-10-29 04:06:25,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:06:24" (2/3) ... [2020-10-29 04:06:25,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c23532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:06:25, skipping insertion in model container [2020-10-29 04:06:25,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:06:25" (3/3) ... [2020-10-29 04:06:25,647 INFO L111 eAbstractionObserver]: Analyzing ICFG array3_pattern.c [2020-10-29 04:06:25,660 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:06:25,666 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:06:25,680 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:06:25,709 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:06:25,710 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:06:25,710 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:06:25,710 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:06:25,710 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:06:25,710 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:06:25,711 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:06:25,711 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:06:25,730 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-10-29 04:06:25,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-29 04:06:25,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:06:25,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:06:25,738 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:06:25,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:06:25,745 INFO L82 PathProgramCache]: Analyzing trace with hash -2098920973, now seen corresponding path program 1 times [2020-10-29 04:06:25,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:06:25,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1928152639] [2020-10-29 04:06:25,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:06:25,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:06:25,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:26,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:26,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:26,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:06:26,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 04:06:26,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:06:26,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 619 [2020-10-29 04:06:26,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:06:26,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:06:26,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:06:26,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 04:06:26,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 04:06:26,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 26 [2020-10-29 04:06:26,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:06:26,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:06:26,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:26,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:06:26,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:06:26,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:06:26,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 04:06:26,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:06:26,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:06:26,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:06:26,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:06:26,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:06:26,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:06:26,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 04:06:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:06:26,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:26,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:06:26,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:06:26,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:06:26,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:06:26,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:06:26,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:06:26,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:06:26,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:06:26,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:06:26,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:06:26,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:06:26,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:06:26,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1928152639] [2020-10-29 04:06:26,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:06:26,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 04:06:26,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355810188] [2020-10-29 04:06:26,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 04:06:26,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:06:26,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 04:06:26,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:06:26,837 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 6 states. [2020-10-29 04:06:27,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:06:27,358 INFO L93 Difference]: Finished difference Result 89 states and 117 transitions. [2020-10-29 04:06:27,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 04:06:27,360 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-10-29 04:06:27,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:06:27,369 INFO L225 Difference]: With dead ends: 89 [2020-10-29 04:06:27,370 INFO L226 Difference]: Without dead ends: 37 [2020-10-29 04:06:27,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-29 04:06:27,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-29 04:06:27,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2020-10-29 04:06:27,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-29 04:06:27,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-10-29 04:06:27,427 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 21 [2020-10-29 04:06:27,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:06:27,428 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-10-29 04:06:27,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 04:06:27,428 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-10-29 04:06:27,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-29 04:06:27,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:06:27,431 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2020-10-29 04:06:27,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:06:27,432 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:06:27,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:06:27,433 INFO L82 PathProgramCache]: Analyzing trace with hash 101559764, now seen corresponding path program 1 times [2020-10-29 04:06:27,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:06:27,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1830125668] [2020-10-29 04:06:27,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:06:27,454 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-29 04:06:27,455 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-29 04:06:27,455 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 04:06:27,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:06:27,479 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-29 04:06:27,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:06:27 BoogieIcfgContainer [2020-10-29 04:06:27,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 04:06:27,482 INFO L168 Benchmark]: Toolchain (without parser) took 2984.98 ms. Allocated memory is still 151.0 MB. Free memory was 106.2 MB in the beginning and 71.5 MB in the end (delta: 34.7 MB). Peak memory consumption was 35.6 MB. Max. memory is 8.0 GB. [2020-10-29 04:06:27,483 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 122.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 04:06:27,484 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.33 ms. Allocated memory is still 151.0 MB. Free memory was 105.6 MB in the beginning and 94.7 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-29 04:06:27,485 INFO L168 Benchmark]: Boogie Preprocessor took 113.97 ms. Allocated memory is still 151.0 MB. Free memory was 94.7 MB in the beginning and 133.1 MB in the end (delta: -38.4 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-29 04:06:27,486 INFO L168 Benchmark]: RCFGBuilder took 721.36 ms. Allocated memory is still 151.0 MB. Free memory was 132.6 MB in the beginning and 115.2 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2020-10-29 04:06:27,487 INFO L168 Benchmark]: TraceAbstraction took 1840.18 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 71.5 MB in the end (delta: 43.3 MB). Peak memory consumption was 44.2 MB. Max. memory is 8.0 GB. [2020-10-29 04:06:27,491 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 122.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 297.33 ms. Allocated memory is still 151.0 MB. Free memory was 105.6 MB in the beginning and 94.7 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 113.97 ms. Allocated memory is still 151.0 MB. Free memory was 94.7 MB in the beginning and 133.1 MB in the end (delta: -38.4 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 721.36 ms. Allocated memory is still 151.0 MB. Free memory was 132.6 MB in the beginning and 115.2 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1840.18 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 71.5 MB in the end (delta: 43.3 MB). Peak memory consumption was 44.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 28]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L37] signed long long ARR_SIZE ; [L46] ARR_SIZE = (signed long long)__VERIFIER_nondet_short() [L47] CALL assume_abort_if_not(ARR_SIZE > 0) [L31] COND FALSE !(!cond) [L47] RET assume_abort_if_not(ARR_SIZE > 0) [L49] int array1[ARR_SIZE] ; [L50] int array2[ARR_SIZE] ; [L51] int count = 0, num = -1 ; [L52] signed long long sum1 = 0, sum2 = 0 ; [L53] int temp ; [L54] short index ; [L56] count=0 [L56] COND FALSE !(count=0 && index < ARR_SIZE) [L31] COND FALSE !(!cond) [L66] RET assume_abort_if_not(index>=0 && index < ARR_SIZE) [L68] EXPR array1[index] [L68] array1[index] = array1[index] + num*(num*index) [L69] EXPR array2[ARR_SIZE-1-index] [L69] array2[ARR_SIZE-1-index] = array2[ARR_SIZE-1-index] + (num * index) [L71] temp = __VERIFIER_nondet_int() [L72] COND TRUE temp == 0 [L75] count=0 [L75] COND TRUE count