/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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/rev-3-u.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 00:03:26,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 00:03:26,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 00:03:26,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 00:03:26,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 00:03:26,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 00:03:26,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 00:03:26,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 00:03:26,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 00:03:26,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 00:03:26,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 00:03:26,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 00:03:26,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 00:03:26,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 00:03:26,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 00:03:26,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 00:03:26,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 00:03:26,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 00:03:26,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 00:03:26,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 00:03:26,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 00:03:26,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 00:03:26,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 00:03:26,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 00:03:26,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 00:03:26,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 00:03:26,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 00:03:26,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 00:03:26,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 00:03:26,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 00:03:26,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 00:03:26,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 00:03:26,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 00:03:26,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 00:03:26,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 00:03:26,235 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 00:03:26,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 00:03:26,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 00:03:26,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 00:03:26,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 00:03:26,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 00:03:26,239 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 [2020-10-14 00:03:26,260 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 00:03:26,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 00:03:26,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 00:03:26,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 00:03:26,262 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 00:03:26,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 00:03:26,263 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 00:03:26,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 00:03:26,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 00:03:26,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 00:03:26,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 00:03:26,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 00:03:26,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 00:03:26,264 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 00:03:26,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 00:03:26,264 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 00:03:26,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 00:03:26,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 00:03:26,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 00:03:26,265 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 00:03:26,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 00:03:26,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 00:03:26,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 00:03:26,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 00:03:26,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 00:03:26,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 00:03:26,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 00:03:26,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 00:03:26,267 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 00:03:26,267 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 00:03:26,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 00:03:26,582 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 00:03:26,592 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 00:03:26,594 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 00:03:26,594 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 00:03:26,595 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/rev-3-u.c [2020-10-14 00:03:26,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63b6f00aa/f28d391916f64315a93f7121304784df/FLAG5d3e50ed4 [2020-10-14 00:03:27,118 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 00:03:27,119 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-multidimensional/rev-3-u.c [2020-10-14 00:03:27,126 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63b6f00aa/f28d391916f64315a93f7121304784df/FLAG5d3e50ed4 [2020-10-14 00:03:27,484 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63b6f00aa/f28d391916f64315a93f7121304784df [2020-10-14 00:03:27,496 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 00:03:27,498 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 00:03:27,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 00:03:27,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 00:03:27,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 00:03:27,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:03:27" (1/1) ... [2020-10-14 00:03:27,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aa107a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:27, skipping insertion in model container [2020-10-14 00:03:27,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:03:27" (1/1) ... [2020-10-14 00:03:27,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 00:03:27,539 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 00:03:27,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:03:27,727 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 00:03:27,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:03:27,872 INFO L208 MainTranslator]: Completed translation [2020-10-14 00:03:27,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:27 WrapperNode [2020-10-14 00:03:27,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 00:03:27,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 00:03:27,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 00:03:27,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 00:03:27,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:27" (1/1) ... [2020-10-14 00:03:27,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:27" (1/1) ... [2020-10-14 00:03:27,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:27" (1/1) ... [2020-10-14 00:03:27,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:27" (1/1) ... [2020-10-14 00:03:27,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:27" (1/1) ... [2020-10-14 00:03:27,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:27" (1/1) ... [2020-10-14 00:03:27,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:27" (1/1) ... [2020-10-14 00:03:27,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 00:03:27,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 00:03:27,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 00:03:27,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 00:03:27,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:27" (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 [2020-10-14 00:03:27,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 00:03:27,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 00:03:27,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 00:03:27,997 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 00:03:27,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 00:03:27,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 00:03:27,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 00:03:27,998 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 00:03:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 00:03:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 00:03:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 00:03:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 00:03:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 00:03:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 00:03:28,275 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 00:03:28,275 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-14 00:03:28,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:03:28 BoogieIcfgContainer [2020-10-14 00:03:28,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 00:03:28,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 00:03:28,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 00:03:28,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 00:03:28,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:03:27" (1/3) ... [2020-10-14 00:03:28,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9d7810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:03:28, skipping insertion in model container [2020-10-14 00:03:28,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:27" (2/3) ... [2020-10-14 00:03:28,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9d7810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:03:28, skipping insertion in model container [2020-10-14 00:03:28,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:03:28" (3/3) ... [2020-10-14 00:03:28,290 INFO L109 eAbstractionObserver]: Analyzing ICFG rev-3-u.c [2020-10-14 00:03:28,303 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 00:03:28,311 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 00:03:28,327 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 00:03:28,356 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 00:03:28,356 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 00:03:28,356 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 00:03:28,356 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 00:03:28,357 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 00:03:28,357 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 00:03:28,357 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 00:03:28,357 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 00:03:28,377 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-10-14 00:03:28,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-14 00:03:28,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:03:28,384 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:03:28,384 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:03:28,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:03:28,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1773460249, now seen corresponding path program 1 times [2020-10-14 00:03:28,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:03:28,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2069728024] [2020-10-14 00:03:28,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:03:28,504 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-14 00:03:28,505 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-14 00:03:28,505 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 00:03:28,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 00:03:28,526 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-14 00:03:28,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 12:03:28 BoogieIcfgContainer [2020-10-14 00:03:28,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 00:03:28,530 INFO L168 Benchmark]: Toolchain (without parser) took 1031.20 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 103.4 MB in the beginning and 149.1 MB in the end (delta: -45.7 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-10-14 00:03:28,530 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-14 00:03:28,532 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.52 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 103.2 MB in the beginning and 182.0 MB in the end (delta: -78.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2020-10-14 00:03:28,533 INFO L168 Benchmark]: Boogie Preprocessor took 63.75 ms. Allocated memory is still 203.4 MB. Free memory was 182.0 MB in the beginning and 179.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-14 00:03:28,534 INFO L168 Benchmark]: RCFGBuilder took 341.57 ms. Allocated memory is still 203.4 MB. Free memory was 179.9 MB in the beginning and 161.3 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2020-10-14 00:03:28,535 INFO L168 Benchmark]: TraceAbstraction took 243.56 ms. Allocated memory is still 203.4 MB. Free memory was 160.7 MB in the beginning and 149.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-10-14 00:03:28,539 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 372.52 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 103.2 MB in the beginning and 182.0 MB in the end (delta: -78.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 63.75 ms. Allocated memory is still 203.4 MB. Free memory was 182.0 MB in the beginning and 179.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 341.57 ms. Allocated memory is still 203.4 MB. Free memory was 179.9 MB in the beginning and 161.3 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 243.56 ms. Allocated memory is still 203.4 MB. Free memory was 160.7 MB in the beginning and 149.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 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,k; [L15] int n=1000; [L16] int A [n][n][n]; [L17] int B [n][n][n]; [L21] i=0 [L22] j=0 [L23] k=0 [L40] i=0 [L41] j=0 [L42] k=0 [L60] i=0 [L61] j=0 [L62] k=0 [L63] COND TRUE i < n [L64] j=0 [L65] k=0 [L66] COND TRUE j < n [L67] k=0 [L68] COND TRUE k < n [L69] EXPR A[i][j][k] [L69] EXPR B[n-i-1][n-j-1][n-k-1] [L69] CALL __VERIFIER_assert(A[i][j][k]==B[n-i-1][n-j-1][n-k-1]) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 36 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=36occurred 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...