/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=BIGGEST --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 [2020-09-24 20:42:25,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:42:25,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:42:25,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:42:25,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:42:25,526 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:42:25,528 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:42:25,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:42:25,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:42:25,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:42:25,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:42:25,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:42:25,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:42:25,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:42:25,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:42:25,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:42:25,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:42:25,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:42:25,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:42:25,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:42:25,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:42:25,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:42:25,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:42:25,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:42:25,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:42:25,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:42:25,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:42:25,572 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:42:25,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:42:25,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:42:25,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:42:25,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:42:25,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:42:25,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:42:25,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:42:25,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:42:25,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:42:25,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:42:25,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:42:25,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:42:25,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:42:25,586 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 [2020-09-24 20:42:25,652 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:42:25,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:42:25,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:42:25,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:42:25,655 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:42:25,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:42:25,657 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:42:25,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:42:25,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:42:25,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:42:25,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:42:25,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:42:25,659 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:42:25,659 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:42:25,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:42:25,659 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:42:25,660 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:42:25,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:42:25,660 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:42:25,660 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:42:25,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:42:25,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:42:25,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:42:25,662 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:42:25,662 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:42:25,662 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:42:25,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:42:25,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:42:25,663 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:42:25,663 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:42:26,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:42:26,220 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:42:26,226 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:42:26,229 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:42:26,229 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:42:26,231 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-2.i [2020-09-24 20:42:26,318 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d58b19f20/18fb13edd52f46a6815aab13ef3e0134/FLAG5ffa8ee24 [2020-09-24 20:42:26,872 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:42:26,873 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-2.i [2020-09-24 20:42:26,882 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d58b19f20/18fb13edd52f46a6815aab13ef3e0134/FLAG5ffa8ee24 [2020-09-24 20:42:27,209 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d58b19f20/18fb13edd52f46a6815aab13ef3e0134 [2020-09-24 20:42:27,225 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:42:27,232 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:42:27,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:42:27,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:42:27,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:42:27,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:42:27" (1/1) ... [2020-09-24 20:42:27,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb7919e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:27, skipping insertion in model container [2020-09-24 20:42:27,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:42:27" (1/1) ... [2020-09-24 20:42:27,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:42:27,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:42:27,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:42:27,537 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:42:27,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:42:27,583 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:42:27,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:27 WrapperNode [2020-09-24 20:42:27,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:42:27,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:42:27,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:42:27,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:42:27,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:27" (1/1) ... [2020-09-24 20:42:27,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:27" (1/1) ... [2020-09-24 20:42:27,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:27" (1/1) ... [2020-09-24 20:42:27,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:27" (1/1) ... [2020-09-24 20:42:27,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:27" (1/1) ... [2020-09-24 20:42:27,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:27" (1/1) ... [2020-09-24 20:42:27,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:27" (1/1) ... [2020-09-24 20:42:27,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:42:27,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:42:27,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:42:27,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:42:27,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:27" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:42:27,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:42:27,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:42:27,808 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 20:42:27,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 20:42:27,808 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:42:27,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:42:27,808 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 20:42:27,809 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 20:42:27,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 20:42:27,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-24 20:42:27,809 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:42:27,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:42:27,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:42:27,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:42:27,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:42:27,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:42:27,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:42:28,088 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:42:28,088 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 20:42:28,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:42:28 BoogieIcfgContainer [2020-09-24 20:42:28,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:42:28,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:42:28,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:42:28,099 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:42:28,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:42:27" (1/3) ... [2020-09-24 20:42:28,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a137c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:42:28, skipping insertion in model container [2020-09-24 20:42:28,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:42:27" (2/3) ... [2020-09-24 20:42:28,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a137c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:42:28, skipping insertion in model container [2020-09-24 20:42:28,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:42:28" (3/3) ... [2020-09-24 20:42:28,104 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_1-2.i [2020-09-24 20:42:28,117 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:42:28,128 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:42:28,153 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:42:28,204 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:42:28,205 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:42:28,205 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:42:28,205 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:42:28,205 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:42:28,205 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:42:28,206 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:42:28,206 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:42:28,228 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-09-24 20:42:28,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-24 20:42:28,235 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:28,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:42:28,236 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:42:28,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:28,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1780996077, now seen corresponding path program 1 times [2020-09-24 20:42:28,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:28,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769798146] [2020-09-24 20:42:28,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:28,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:28,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:28,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:28,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:28,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 20:42:28,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:42:28,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 429 [2020-09-24 20:42:28,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:28,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:42:28,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:42:28,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:42:28,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:42:29,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:42:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:42:29,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:42:29,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:42:29,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:42:29,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:42:29,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 20:42:29,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:42:29,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:42:29,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:42:29,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:42:29,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:42:29,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:42:29,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [769798146] [2020-09-24 20:42:29,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:42:29,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 20:42:29,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338549991] [2020-09-24 20:42:29,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 20:42:29,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:42:29,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 20:42:29,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:42:29,100 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 7 states. [2020-09-24 20:42:29,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:42:29,334 INFO L93 Difference]: Finished difference Result 71 states and 83 transitions. [2020-09-24 20:42:29,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 20:42:29,336 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-09-24 20:42:29,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:42:29,349 INFO L225 Difference]: With dead ends: 71 [2020-09-24 20:42:29,349 INFO L226 Difference]: Without dead ends: 36 [2020-09-24 20:42:29,354 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 [2020-09-24 20:42:29,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-24 20:42:29,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2020-09-24 20:42:29,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-24 20:42:29,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2020-09-24 20:42:29,409 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 17 [2020-09-24 20:42:29,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:42:29,409 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2020-09-24 20:42:29,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 20:42:29,410 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2020-09-24 20:42:29,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-24 20:42:29,411 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:42:29,411 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] [2020-09-24 20:42:29,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:42:29,412 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:42:29,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:42:29,413 INFO L82 PathProgramCache]: Analyzing trace with hash -329373976, now seen corresponding path program 1 times [2020-09-24 20:42:29,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:42:29,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636206474] [2020-09-24 20:42:29,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:42:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 20:42:29,436 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 20:42:29,437 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 20:42:29,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:42:29,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:42:29 BoogieIcfgContainer [2020-09-24 20:42:29,464 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 20:42:29,468 INFO L168 Benchmark]: Toolchain (without parser) took 2239.54 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 100.8 MB in the beginning and 103.2 MB in the end (delta: -2.4 MB). Peak memory consumption was 53.7 MB. Max. memory is 7.1 GB. [2020-09-24 20:42:29,469 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 145.8 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 20:42:29,470 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.37 ms. Allocated memory is still 145.8 MB. Free memory was 100.1 MB in the beginning and 90.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-24 20:42:29,471 INFO L168 Benchmark]: Boogie Preprocessor took 136.41 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 90.2 MB in the beginning and 179.7 MB in the end (delta: -89.5 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-09-24 20:42:29,472 INFO L168 Benchmark]: RCFGBuilder took 372.38 ms. Allocated memory is still 201.9 MB. Free memory was 179.7 MB in the beginning and 164.0 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2020-09-24 20:42:29,473 INFO L168 Benchmark]: TraceAbstraction took 1369.00 ms. Allocated memory is still 201.9 MB. Free memory was 163.3 MB in the beginning and 103.2 MB in the end (delta: 60.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 7.1 GB. [2020-09-24 20:42:29,478 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 145.8 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 349.37 ms. Allocated memory is still 145.8 MB. Free memory was 100.1 MB in the beginning and 90.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.41 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 90.2 MB in the beginning and 179.7 MB in the end (delta: -89.5 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 372.38 ms. Allocated memory is still 201.9 MB. Free memory was 179.7 MB in the beginning and 164.0 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1369.00 ms. Allocated memory is still 201.9 MB. Free memory was 163.3 MB in the beginning and 103.2 MB in the end (delta: 60.1 MB). Peak memory consumption was 60.1 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: 1.2s, 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, 0.1s 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, 0.6s 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...