/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 SingleStatement --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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:27:09,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:27:09,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:27:09,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:27:09,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:27:09,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:27:09,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:27:09,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:27:09,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:27:09,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:27:09,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:27:09,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:27:09,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:27:09,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:27:09,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:27:09,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:27:09,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:27:09,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:27:09,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:27:09,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:27:09,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:27:09,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:27:09,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:27:09,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:27:09,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:27:09,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:27:09,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:27:09,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:27:09,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:27:09,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:27:09,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:27:09,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:27:09,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:27:09,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:27:09,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:27:09,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:27:09,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:27:09,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:27:09,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:27:09,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:27:09,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:27:09,336 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 [2020-09-25 03:27:09,379 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:27:09,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:27:09,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:27:09,382 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:27:09,382 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:27:09,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:27:09,382 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:27:09,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:27:09,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:27:09,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:27:09,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:27:09,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:27:09,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:27:09,385 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:27:09,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:27:09,385 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:27:09,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:27:09,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:27:09,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:27:09,386 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:27:09,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:27:09,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:27:09,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:27:09,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:27:09,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:27:09,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:27:09,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:27:09,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:27:09,388 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:27:09,388 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 -> SingleStatement 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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=true; [2020-09-25 03:27:09,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:27:09,902 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:27:09,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:27:09,912 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:27:09,913 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:27:09,914 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-2.i [2020-09-25 03:27:10,005 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/309d7236b/62c492f32efc43a3bede3042e4afb157/FLAGb4610ce02 [2020-09-25 03:27:10,539 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:27:10,540 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-2.i [2020-09-25 03:27:10,548 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/309d7236b/62c492f32efc43a3bede3042e4afb157/FLAGb4610ce02 [2020-09-25 03:27:10,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/309d7236b/62c492f32efc43a3bede3042e4afb157 [2020-09-25 03:27:10,903 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:27:10,909 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:27:10,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:27:10,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:27:10,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:27:10,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:27:10" (1/1) ... [2020-09-25 03:27:10,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c364e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:27:10, skipping insertion in model container [2020-09-25 03:27:10,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:27:10" (1/1) ... [2020-09-25 03:27:10,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:27:10,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:27:11,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:27:11,167 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:27:11,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:27:11,212 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:27:11,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:27:11 WrapperNode [2020-09-25 03:27:11,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:27:11,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:27:11,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:27:11,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:27:11,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:27:11" (1/1) ... [2020-09-25 03:27:11,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:27:11" (1/1) ... [2020-09-25 03:27:11,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:27:11" (1/1) ... [2020-09-25 03:27:11,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:27:11" (1/1) ... [2020-09-25 03:27:11,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:27:11" (1/1) ... [2020-09-25 03:27:11,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:27:11" (1/1) ... [2020-09-25 03:27:11,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:27:11" (1/1) ... [2020-09-25 03:27:11,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:27:11,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:27:11,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:27:11,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:27:11,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:27:11" (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 [2020-09-25 03:27:11,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:27:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:27:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 03:27:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 03:27:11,423 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:27:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:27:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 03:27:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 03:27:11,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 03:27:11,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 03:27:11,425 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:27:11,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 03:27:11,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 03:27:11,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 03:27:11,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:27:11,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:27:11,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:27:11,715 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:27:11,716 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 03:27:11,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:27:11 BoogieIcfgContainer [2020-09-25 03:27:11,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:27:11,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:27:11,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:27:11,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:27:11,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:27:10" (1/3) ... [2020-09-25 03:27:11,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24bf5ab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:27:11, skipping insertion in model container [2020-09-25 03:27:11,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:27:11" (2/3) ... [2020-09-25 03:27:11,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24bf5ab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:27:11, skipping insertion in model container [2020-09-25 03:27:11,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:27:11" (3/3) ... [2020-09-25 03:27:11,730 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_1-2.i [2020-09-25 03:27:11,739 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:27:11,748 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:27:11,767 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:27:11,795 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:27:11,795 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:27:11,796 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:27:11,796 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:27:11,796 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:27:11,796 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:27:11,796 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:27:11,797 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:27:11,819 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-09-25 03:27:11,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 03:27:11,826 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:27:11,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:27:11,827 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:27:11,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:27:11,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1780996077, now seen corresponding path program 1 times [2020-09-25 03:27:11,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:27:11,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717565264] [2020-09-25 03:27:11,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:27:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:27:11,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:27:12,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:27:12,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:27:12,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:27:12,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 03:27:12,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:27:12,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 398 [2020-09-25 03:27:12,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:27:12,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:27:12,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:27:12,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:27:12,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 03:27:12,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:27:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:27:12,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:27:12,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:27:12,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:27:12,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:27:12,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:27:12,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:27:12,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:27:12,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:27:12,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:27:12,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:27:12,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:27:12,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717565264] [2020-09-25 03:27:12,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:27:12,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 03:27:12,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396175001] [2020-09-25 03:27:12,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:27:12,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:27:12,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:27:12,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:27:12,600 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 7 states. [2020-09-25 03:27:12,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:27:12,798 INFO L93 Difference]: Finished difference Result 71 states and 83 transitions. [2020-09-25 03:27:12,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 03:27:12,800 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-09-25 03:27:12,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:27:12,813 INFO L225 Difference]: With dead ends: 71 [2020-09-25 03:27:12,813 INFO L226 Difference]: Without dead ends: 36 [2020-09-25 03:27:12,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:27:12,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-25 03:27:12,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2020-09-25 03:27:12,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 03:27:12,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2020-09-25 03:27:12,864 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 17 [2020-09-25 03:27:12,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:27:12,865 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2020-09-25 03:27:12,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:27:12,865 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2020-09-25 03:27:12,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-25 03:27:12,867 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:27:12,867 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] [2020-09-25 03:27:12,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:27:12,868 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:27:12,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:27:12,868 INFO L82 PathProgramCache]: Analyzing trace with hash -329373976, now seen corresponding path program 1 times [2020-09-25 03:27:12,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:27:12,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545528461] [2020-09-25 03:27:12,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:27:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 03:27:12,891 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 03:27:12,892 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 03:27:12,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:27:12,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:27:12 BoogieIcfgContainer [2020-09-25 03:27:12,918 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 03:27:12,922 INFO L168 Benchmark]: Toolchain (without parser) took 2016.25 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 101.6 MB in the beginning and 104.6 MB in the end (delta: -3.0 MB). Peak memory consumption was 53.6 MB. Max. memory is 7.1 GB. [2020-09-25 03:27:12,923 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 03:27:12,924 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.97 ms. Allocated memory is still 146.8 MB. Free memory was 100.9 MB in the beginning and 91.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-25 03:27:12,925 INFO L168 Benchmark]: Boogie Preprocessor took 134.69 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 91.0 MB in the beginning and 181.3 MB in the end (delta: -90.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-25 03:27:12,926 INFO L168 Benchmark]: RCFGBuilder took 372.05 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 165.6 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. [2020-09-25 03:27:12,927 INFO L168 Benchmark]: TraceAbstraction took 1196.38 ms. Allocated memory is still 203.4 MB. Free memory was 165.0 MB in the beginning and 104.6 MB in the end (delta: 60.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 7.1 GB. [2020-09-25 03:27:12,932 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 303.97 ms. Allocated memory is still 146.8 MB. Free memory was 100.9 MB in the beginning and 91.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.69 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 91.0 MB in the beginning and 181.3 MB in the end (delta: -90.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 372.05 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 165.6 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1196.38 ms. Allocated memory is still 203.4 MB. Free memory was 165.0 MB in the beginning and 104.6 MB in the end (delta: 60.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L24] unsigned int array[10000]; [L25] unsigned int index = 0; [L26] unsigned int tmp = 0; [L28] COND TRUE 1 [L29] index = __VERIFIER_nondet_uint() [L30] COND TRUE index >= 10000 [L37] EXPR tmp < 10000 && array[tmp] == tmp [L37] EXPR array[tmp] [L37] EXPR tmp < 10000 && array[tmp] == tmp [L37] CALL __VERIFIER_assert(tmp < 10000 && array[tmp] == tmp) [L14] COND TRUE !(cond) [L15] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 23 SDslu, 108 SDs, 0 SdLazy, 68 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 688 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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 proved your program to be incorrect! Received shutdown request...