/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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-multidimensional/diff-3-n-u.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 09:26:49,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 09:26:49,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 09:26:49,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 09:26:49,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 09:26:49,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 09:26:49,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 09:26:49,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 09:26:49,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 09:26:49,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 09:26:49,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 09:26:49,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 09:26:49,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 09:26:49,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 09:26:49,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 09:26:49,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 09:26:49,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 09:26:49,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 09:26:49,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 09:26:49,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 09:26:49,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 09:26:49,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 09:26:49,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 09:26:49,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 09:26:49,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 09:26:49,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 09:26:49,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 09:26:49,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 09:26:49,386 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 09:26:49,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 09:26:49,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 09:26:49,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 09:26:49,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 09:26:49,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 09:26:49,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 09:26:49,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 09:26:49,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 09:26:49,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 09:26:49,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 09:26:49,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 09:26:49,396 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 09:26:49,397 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 [2020-10-28 09:26:49,452 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 09:26:49,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 09:26:49,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 09:26:49,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 09:26:49,459 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 09:26:49,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 09:26:49,459 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 09:26:49,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 09:26:49,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 09:26:49,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 09:26:49,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 09:26:49,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 09:26:49,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 09:26:49,462 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 09:26:49,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 09:26:49,462 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 09:26:49,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 09:26:49,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 09:26:49,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 09:26:49,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 09:26:49,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 09:26:49,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 09:26:49,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 09:26:49,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 09:26:49,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 09:26:49,465 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 09:26:49,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 09:26:49,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 09:26:49,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 09:26:49,465 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 09:26:49,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 09:26:49,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 09:26:49,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 09:26:49,941 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 09:26:49,942 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 09:26:49,944 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/diff-3-n-u.c [2020-10-28 09:26:50,029 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/242b1e13d/2e5007b330e2494982602c20973d7bb9/FLAG9675b069d [2020-10-28 09:26:50,755 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 09:26:50,755 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-multidimensional/diff-3-n-u.c [2020-10-28 09:26:50,765 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/242b1e13d/2e5007b330e2494982602c20973d7bb9/FLAG9675b069d [2020-10-28 09:26:51,078 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/242b1e13d/2e5007b330e2494982602c20973d7bb9 [2020-10-28 09:26:51,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 09:26:51,089 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 09:26:51,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 09:26:51,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 09:26:51,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 09:26:51,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:26:51" (1/1) ... [2020-10-28 09:26:51,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@879a816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:26:51, skipping insertion in model container [2020-10-28 09:26:51,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:26:51" (1/1) ... [2020-10-28 09:26:51,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 09:26:51,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 09:26:51,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:26:51,327 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 09:26:51,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:26:51,380 INFO L208 MainTranslator]: Completed translation [2020-10-28 09:26:51,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:26:51 WrapperNode [2020-10-28 09:26:51,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 09:26:51,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 09:26:51,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 09:26:51,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 09:26:51,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:26:51" (1/1) ... [2020-10-28 09:26:51,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:26:51" (1/1) ... [2020-10-28 09:26:51,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:26:51" (1/1) ... [2020-10-28 09:26:51,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:26:51" (1/1) ... [2020-10-28 09:26:51,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:26:51" (1/1) ... [2020-10-28 09:26:51,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:26:51" (1/1) ... [2020-10-28 09:26:51,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:26:51" (1/1) ... [2020-10-28 09:26:51,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 09:26:51,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 09:26:51,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 09:26:51,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 09:26:51,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:26:51" (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 [2020-10-28 09:26:51,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 09:26:51,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 09:26:51,542 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 09:26:51,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-28 09:26:51,543 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 09:26:51,544 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 09:26:51,544 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 09:26:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 09:26:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 09:26:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-28 09:26:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-28 09:26:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 09:26:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 09:26:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 09:26:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 09:26:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 09:26:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 09:26:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 09:26:52,330 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 09:26:52,330 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-28 09:26:52,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:26:52 BoogieIcfgContainer [2020-10-28 09:26:52,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 09:26:52,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 09:26:52,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 09:26:52,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 09:26:52,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:26:51" (1/3) ... [2020-10-28 09:26:52,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fcaf51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:26:52, skipping insertion in model container [2020-10-28 09:26:52,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:26:51" (2/3) ... [2020-10-28 09:26:52,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fcaf51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:26:52, skipping insertion in model container [2020-10-28 09:26:52,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:26:52" (3/3) ... [2020-10-28 09:26:52,345 INFO L111 eAbstractionObserver]: Analyzing ICFG diff-3-n-u.c [2020-10-28 09:26:52,361 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 09:26:52,368 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 09:26:52,383 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 09:26:52,425 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 09:26:52,426 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 09:26:52,426 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 09:26:52,426 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 09:26:52,426 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 09:26:52,427 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 09:26:52,427 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 09:26:52,427 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 09:26:52,452 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-10-28 09:26:52,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-28 09:26:52,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:26:52,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:26:52,461 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:26:52,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:26:52,472 INFO L82 PathProgramCache]: Analyzing trace with hash 509479056, now seen corresponding path program 1 times [2020-10-28 09:26:52,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:26:52,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1797139976] [2020-10-28 09:26:52,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:26:52,656 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-28 09:26:52,658 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-28 09:26:52,658 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 09:26:52,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 09:26:52,688 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-28 09:26:52,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:26:52 BoogieIcfgContainer [2020-10-28 09:26:52,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 09:26:52,694 INFO L168 Benchmark]: Toolchain (without parser) took 1607.17 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 83.4 MB in the end (delta: 43.5 MB). Peak memory consumption was 43.0 MB. Max. memory is 8.0 GB. [2020-10-28 09:26:52,696 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 125.8 MB. Free memory is still 84.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 09:26:52,699 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.33 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 115.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-28 09:26:52,701 INFO L168 Benchmark]: Boogie Preprocessor took 61.77 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 113.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-28 09:26:52,702 INFO L168 Benchmark]: RCFGBuilder took 888.06 ms. Allocated memory is still 151.0 MB. Free memory was 113.8 MB in the beginning and 94.9 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2020-10-28 09:26:52,704 INFO L168 Benchmark]: TraceAbstraction took 353.39 ms. Allocated memory is still 151.0 MB. Free memory was 94.3 MB in the beginning and 83.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-28 09:26:52,711 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 125.8 MB. Free memory is still 84.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 287.33 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 115.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 61.77 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 113.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 888.06 ms. Allocated memory is still 151.0 MB. Free memory was 113.8 MB in the beginning and 94.9 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 353.39 ms. Allocated memory is still 151.0 MB. Free memory was 94.3 MB in the beginning and 83.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: 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: [L16] int i,j,k; [L17] int m=1000,n=1500,p=1800; [L18] unsigned int A [m][n][p]; [L19] unsigned int B [m][n][p]; [L20] unsigned int C [m][n][p]; [L25] i=0 [L26] j=0 [L27] k=0 [L45] i=0 [L46] j=0 [L47] k=0 [L48] COND FALSE !(i < m) [L65] i=0 [L66] j=0 [L67] k=0 [L68] COND TRUE i < m [L69] j=0 [L70] k=0 [L71] COND TRUE j < n [L72] k=0 [L73] COND TRUE k < p [L74] EXPR C[i][j][k] [L74] EXPR A[i][j][k] [L74] EXPR B[i][j][k] [L74] CALL __VERIFIER_assert(C[i][j][k]==A[i][j][k]+B[i][j][k]) [L6] COND TRUE !(cond) [L7] CALL reach_error() [L3] __assert_fail("0", "diff-3-n-u.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 0.2s, 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=40occurred 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...