/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=NARROWEST --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-multidimensional/copy-2-u.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 05:19:20,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 05:19:20,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 05:19:20,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 05:19:20,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 05:19:20,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 05:19:20,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 05:19:20,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 05:19:20,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 05:19:20,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 05:19:20,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 05:19:20,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 05:19:20,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 05:19:20,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 05:19:20,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 05:19:20,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 05:19:20,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 05:19:20,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 05:19:20,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 05:19:20,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 05:19:20,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 05:19:20,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 05:19:20,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 05:19:20,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 05:19:20,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 05:19:20,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 05:19:20,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 05:19:20,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 05:19:20,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 05:19:20,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 05:19:20,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 05:19:20,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 05:19:20,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 05:19:20,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 05:19:20,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 05:19:20,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 05:19:20,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 05:19:20,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 05:19:20,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 05:19:20,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 05:19:20,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 05:19:20,618 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 [2020-10-13 05:19:20,654 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 05:19:20,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 05:19:20,657 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 05:19:20,657 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 05:19:20,657 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 05:19:20,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 05:19:20,658 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 05:19:20,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 05:19:20,658 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 05:19:20,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 05:19:20,659 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 05:19:20,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 05:19:20,660 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 05:19:20,660 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 05:19:20,660 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 05:19:20,660 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 05:19:20,661 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 05:19:20,661 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 05:19:20,661 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 05:19:20,661 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 05:19:20,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 05:19:20,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 05:19:20,662 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 05:19:20,662 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 05:19:20,662 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 05:19:20,663 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 05:19:20,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 05:19:20,663 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 05:19:20,663 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 05:19:20,663 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 05:19:21,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 05:19:21,023 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 05:19:21,026 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 05:19:21,028 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 05:19:21,028 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 05:19:21,029 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/copy-2-u.c [2020-10-13 05:19:21,085 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b06268ca7/b17e57c8504e45f1810d067fc16e865c/FLAGcfc6028fa [2020-10-13 05:19:21,551 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 05:19:21,551 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-multidimensional/copy-2-u.c [2020-10-13 05:19:21,559 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b06268ca7/b17e57c8504e45f1810d067fc16e865c/FLAGcfc6028fa [2020-10-13 05:19:21,849 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b06268ca7/b17e57c8504e45f1810d067fc16e865c [2020-10-13 05:19:21,858 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 05:19:21,860 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 05:19:21,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 05:19:21,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 05:19:21,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 05:19:21,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:19:21" (1/1) ... [2020-10-13 05:19:21,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4603aae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:19:21, skipping insertion in model container [2020-10-13 05:19:21,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:19:21" (1/1) ... [2020-10-13 05:19:21,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 05:19:21,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 05:19:22,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 05:19:22,086 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 05:19:22,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 05:19:22,134 INFO L208 MainTranslator]: Completed translation [2020-10-13 05:19:22,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:19:22 WrapperNode [2020-10-13 05:19:22,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 05:19:22,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 05:19:22,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 05:19:22,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 05:19:22,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:19:22" (1/1) ... [2020-10-13 05:19:22,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:19:22" (1/1) ... [2020-10-13 05:19:22,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:19:22" (1/1) ... [2020-10-13 05:19:22,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:19:22" (1/1) ... [2020-10-13 05:19:22,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:19:22" (1/1) ... [2020-10-13 05:19:22,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:19:22" (1/1) ... [2020-10-13 05:19:22,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:19:22" (1/1) ... [2020-10-13 05:19:22,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 05:19:22,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 05:19:22,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 05:19:22,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 05:19:22,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:19:22" (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 [2020-10-13 05:19:22,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 05:19:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 05:19:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-13 05:19:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 05:19:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 05:19:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-13 05:19:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 05:19:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 05:19:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 05:19:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 05:19:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 05:19:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 05:19:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 05:19:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 05:19:22,627 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 05:19:22,628 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-13 05:19:22,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:19:22 BoogieIcfgContainer [2020-10-13 05:19:22,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 05:19:22,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 05:19:22,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 05:19:22,637 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 05:19:22,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:19:21" (1/3) ... [2020-10-13 05:19:22,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491c66f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:19:22, skipping insertion in model container [2020-10-13 05:19:22,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:19:22" (2/3) ... [2020-10-13 05:19:22,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491c66f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:19:22, skipping insertion in model container [2020-10-13 05:19:22,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:19:22" (3/3) ... [2020-10-13 05:19:22,643 INFO L109 eAbstractionObserver]: Analyzing ICFG copy-2-u.c [2020-10-13 05:19:22,657 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 05:19:22,673 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 05:19:22,719 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 05:19:22,769 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 05:19:22,769 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 05:19:22,769 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 05:19:22,769 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 05:19:22,769 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 05:19:22,769 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 05:19:22,769 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 05:19:22,770 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 05:19:22,788 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-10-13 05:19:22,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-13 05:19:22,794 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:19:22,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:19:22,795 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:19:22,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:19:22,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1035913628, now seen corresponding path program 1 times [2020-10-13 05:19:22,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:19:22,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299687662] [2020-10-13 05:19:22,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:19:22,900 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-13 05:19:22,901 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-13 05:19:22,901 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 05:19:22,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 05:19:22,922 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-13 05:19:22,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 05:19:22 BoogieIcfgContainer [2020-10-13 05:19:22,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 05:19:22,927 INFO L168 Benchmark]: Toolchain (without parser) took 1064.69 ms. Allocated memory was 143.1 MB in the beginning and 205.0 MB in the end (delta: 61.9 MB). Free memory was 105.4 MB in the beginning and 154.4 MB in the end (delta: -49.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-10-13 05:19:22,928 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 143.1 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-13 05:19:22,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.51 ms. Allocated memory is still 143.1 MB. Free memory was 105.2 MB in the beginning and 94.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-10-13 05:19:22,930 INFO L168 Benchmark]: Boogie Preprocessor took 146.33 ms. Allocated memory was 143.1 MB in the beginning and 205.0 MB in the end (delta: 61.9 MB). Free memory was 94.7 MB in the beginning and 183.1 MB in the end (delta: -88.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2020-10-13 05:19:22,931 INFO L168 Benchmark]: RCFGBuilder took 348.20 ms. Allocated memory is still 205.0 MB. Free memory was 182.5 MB in the beginning and 166.3 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2020-10-13 05:19:22,932 INFO L168 Benchmark]: TraceAbstraction took 289.42 ms. Allocated memory is still 205.0 MB. Free memory was 165.7 MB in the beginning and 154.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2020-10-13 05:19:22,937 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 143.1 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 273.51 ms. Allocated memory is still 143.1 MB. Free memory was 105.2 MB in the beginning and 94.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 146.33 ms. Allocated memory was 143.1 MB in the beginning and 205.0 MB in the end (delta: 61.9 MB). Free memory was 94.7 MB in the beginning and 183.1 MB in the end (delta: -88.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 348.20 ms. Allocated memory is still 205.0 MB. Free memory was 182.5 MB in the beginning and 166.3 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 289.42 ms. Allocated memory is still 205.0 MB. Free memory was 165.7 MB in the beginning and 154.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: 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: [L14] int i,j; [L15] int n=1000; [L16] int A [n][n]; [L17] int B [n][n]; [L21] i=0 [L22] j=0 [L23] COND FALSE !(i < n) [L35] i=0 [L36] j=0 [L37] COND FALSE !(i < n) [L51] i=0 [L52] j=0 [L53] COND TRUE i < n [L54] j=0 [L55] COND TRUE j < n [L57] EXPR A[i][j] [L57] EXPR B[i][j] [L57] CALL __VERIFIER_assert(A[i][j]==B[i][j]) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...