/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=DEEPEST --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-fpi/sina2f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 14:43:06,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 14:43:06,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 14:43:06,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 14:43:06,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 14:43:06,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 14:43:06,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 14:43:06,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 14:43:06,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 14:43:06,242 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 14:43:06,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 14:43:06,246 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 14:43:06,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 14:43:06,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 14:43:06,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 14:43:06,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 14:43:06,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 14:43:06,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 14:43:06,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 14:43:06,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 14:43:06,279 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 14:43:06,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 14:43:06,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 14:43:06,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 14:43:06,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 14:43:06,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 14:43:06,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 14:43:06,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 14:43:06,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 14:43:06,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 14:43:06,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 14:43:06,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 14:43:06,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 14:43:06,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 14:43:06,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 14:43:06,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 14:43:06,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 14:43:06,300 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 14:43:06,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 14:43:06,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 14:43:06,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 14:43:06,305 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 [2020-10-27 14:43:06,338 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 14:43:06,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 14:43:06,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 14:43:06,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 14:43:06,342 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 14:43:06,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 14:43:06,342 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 14:43:06,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 14:43:06,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 14:43:06,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 14:43:06,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 14:43:06,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 14:43:06,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 14:43:06,344 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 14:43:06,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 14:43:06,345 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 14:43:06,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 14:43:06,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 14:43:06,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 14:43:06,346 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 14:43:06,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 14:43:06,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 14:43:06,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 14:43:06,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 14:43:06,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 14:43:06,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 14:43:06,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 14:43:06,348 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 14:43:06,348 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 14:43:06,348 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 14:43:06,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 14:43:06,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 14:43:06,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 14:43:06,892 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 14:43:06,893 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 14:43:06,894 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina2f.c [2020-10-27 14:43:06,993 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7f4c0a3c/801eb985671c4fe8a69d745358a1852a/FLAG30c874d8e [2020-10-27 14:43:07,714 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 14:43:07,715 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/sina2f.c [2020-10-27 14:43:07,727 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7f4c0a3c/801eb985671c4fe8a69d745358a1852a/FLAG30c874d8e [2020-10-27 14:43:08,053 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7f4c0a3c/801eb985671c4fe8a69d745358a1852a [2020-10-27 14:43:08,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 14:43:08,064 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 14:43:08,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 14:43:08,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 14:43:08,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 14:43:08,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:43:08" (1/1) ... [2020-10-27 14:43:08,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f1e14c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:43:08, skipping insertion in model container [2020-10-27 14:43:08,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:43:08" (1/1) ... [2020-10-27 14:43:08,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 14:43:08,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 14:43:08,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 14:43:08,315 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 14:43:08,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 14:43:08,368 INFO L208 MainTranslator]: Completed translation [2020-10-27 14:43:08,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:43:08 WrapperNode [2020-10-27 14:43:08,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 14:43:08,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 14:43:08,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 14:43:08,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 14:43:08,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:43:08" (1/1) ... [2020-10-27 14:43:08,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:43:08" (1/1) ... [2020-10-27 14:43:08,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:43:08" (1/1) ... [2020-10-27 14:43:08,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:43:08" (1/1) ... [2020-10-27 14:43:08,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:43:08" (1/1) ... [2020-10-27 14:43:08,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:43:08" (1/1) ... [2020-10-27 14:43:08,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:43:08" (1/1) ... [2020-10-27 14:43:08,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 14:43:08,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 14:43:08,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 14:43:08,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 14:43:08,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:43:08" (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 [2020-10-27 14:43:08,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 14:43:08,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 14:43:08,521 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 14:43:08,522 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 14:43:08,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-27 14:43:08,522 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 14:43:08,522 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 14:43:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 14:43:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 14:43:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 14:43:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 14:43:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-27 14:43:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 14:43:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 14:43:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 14:43:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 14:43:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 14:43:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 14:43:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 14:43:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 14:43:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 14:43:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 14:43:08,960 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 14:43:08,961 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-27 14:43:08,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:43:08 BoogieIcfgContainer [2020-10-27 14:43:08,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 14:43:08,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 14:43:08,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 14:43:08,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 14:43:08,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 02:43:08" (1/3) ... [2020-10-27 14:43:08,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ae9d75d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:43:08, skipping insertion in model container [2020-10-27 14:43:08,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:43:08" (2/3) ... [2020-10-27 14:43:08,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ae9d75d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:43:08, skipping insertion in model container [2020-10-27 14:43:08,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:43:08" (3/3) ... [2020-10-27 14:43:08,972 INFO L111 eAbstractionObserver]: Analyzing ICFG sina2f.c [2020-10-27 14:43:08,985 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 14:43:08,990 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 14:43:09,006 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 14:43:09,037 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 14:43:09,037 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 14:43:09,037 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 14:43:09,037 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 14:43:09,037 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 14:43:09,038 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 14:43:09,038 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 14:43:09,038 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 14:43:09,056 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-10-27 14:43:09,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-27 14:43:09,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:43:09,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:43:09,064 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:43:09,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:43:09,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1041170357, now seen corresponding path program 1 times [2020-10-27 14:43:09,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:43:09,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794799446] [2020-10-27 14:43:09,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:43:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:43:09,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:43:09,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:43:09,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:43:09,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:43:09,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:43:09,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:43:09,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:43:10,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:43:10,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 14:43:10,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 14:43:10,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1639 [2020-10-27 14:43:10,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:43:10,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 14:43:10,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-27 14:43:10,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 14:43:10,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 14:43:11,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:43:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:43:11,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:43:11,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:43:11,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:43:11,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:43:11,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 14:43:11,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:43:11,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:43:11,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:43:11,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:43:11,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:43:11,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 14:43:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:43:11,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:43:11,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:43:11,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:43:11,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:43:11,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:43:11,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:43:11,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:43:11,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:43:11,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 14:43:11,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:43:11,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:43:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 14:43:11,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794799446] [2020-10-27 14:43:11,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 14:43:11,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 14:43:11,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146485392] [2020-10-27 14:43:11,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 14:43:11,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:43:11,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 14:43:11,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 14:43:11,107 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 6 states. [2020-10-27 14:43:11,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:43:11,471 INFO L93 Difference]: Finished difference Result 92 states and 127 transitions. [2020-10-27 14:43:11,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 14:43:11,474 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-10-27 14:43:11,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:43:11,483 INFO L225 Difference]: With dead ends: 92 [2020-10-27 14:43:11,484 INFO L226 Difference]: Without dead ends: 43 [2020-10-27 14:43:11,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-27 14:43:11,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-27 14:43:11,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 36. [2020-10-27 14:43:11,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-27 14:43:11,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2020-10-27 14:43:11,556 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 25 [2020-10-27 14:43:11,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:43:11,557 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2020-10-27 14:43:11,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 14:43:11,557 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2020-10-27 14:43:11,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-27 14:43:11,562 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:43:11,562 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:43:11,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 14:43:11,563 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:43:11,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:43:11,567 INFO L82 PathProgramCache]: Analyzing trace with hash -968536487, now seen corresponding path program 1 times [2020-10-27 14:43:11,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:43:11,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1688624474] [2020-10-27 14:43:11,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:43:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 14:43:11,655 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 14:43:11,656 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 14:43:11,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 14:43:11,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 02:43:11 BoogieIcfgContainer [2020-10-27 14:43:11,723 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 14:43:11,726 INFO L168 Benchmark]: Toolchain (without parser) took 3665.94 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 135.0 MB in the beginning and 111.5 MB in the end (delta: 23.5 MB). Peak memory consumption was 56.6 MB. Max. memory is 8.0 GB. [2020-10-27 14:43:11,730 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 159.4 MB. Free memory is still 131.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 14:43:11,732 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.37 ms. Allocated memory is still 159.4 MB. Free memory was 134.3 MB in the beginning and 124.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-27 14:43:11,733 INFO L168 Benchmark]: Boogie Preprocessor took 54.64 ms. Allocated memory is still 159.4 MB. Free memory was 124.1 MB in the beginning and 122.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 14:43:11,737 INFO L168 Benchmark]: RCFGBuilder took 536.38 ms. Allocated memory is still 159.4 MB. Free memory was 122.2 MB in the beginning and 138.4 MB in the end (delta: -16.2 MB). Peak memory consumption was 16.5 MB. Max. memory is 8.0 GB. [2020-10-27 14:43:11,739 INFO L168 Benchmark]: TraceAbstraction took 2758.81 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 137.9 MB in the beginning and 111.5 MB in the end (delta: 26.4 MB). Peak memory consumption was 58.9 MB. Max. memory is 8.0 GB. [2020-10-27 14:43:11,750 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 159.4 MB. Free memory is still 131.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 303.37 ms. Allocated memory is still 159.4 MB. Free memory was 134.3 MB in the beginning and 124.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 54.64 ms. Allocated memory is still 159.4 MB. Free memory was 124.1 MB in the beginning and 122.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 536.38 ms. Allocated memory is still 159.4 MB. Free memory was 122.2 MB in the beginning and 138.4 MB in the end (delta: -16.2 MB). Peak memory consumption was 16.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2758.81 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 137.9 MB in the beginning and 111.5 MB in the end (delta: 26.4 MB). Peak memory consumption was 58.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] long long *a = malloc(sizeof(long long)*N); [L31] sum[0] = 1 [L32] i=0 [L32] COND TRUE i