/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=LOWLEXORDER --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 21:50:28,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:50:28,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:50:28,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:50:28,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:50:28,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:50:28,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:50:28,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:50:28,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:50:28,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:50:28,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:50:28,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:50:28,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:50:28,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:50:28,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:50:28,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:50:28,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:50:28,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:50:28,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:50:28,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:50:28,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:50:28,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:50:28,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:50:28,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:50:28,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:50:28,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:50:28,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:50:28,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:50:28,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:50:28,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:50:28,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:50:28,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:50:28,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:50:28,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:50:28,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:50:28,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:50:28,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:50:28,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:50:28,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:50:28,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:50:28,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:50:28,250 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 21:50:28,297 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:50:28,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:50:28,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:50:28,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:50:28,300 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:50:28,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:50:28,301 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:50:28,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:50:28,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:50:28,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:50:28,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:50:28,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:50:28,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:50:28,303 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:50:28,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:50:28,304 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:50:28,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:50:28,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:50:28,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:50:28,305 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:50:28,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:50:28,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:50:28,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:50:28,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:50:28,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:50:28,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:50:28,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:50:28,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:50:28,306 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:50:28,306 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:50:28,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:50:28,793 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:50:28,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:50:28,800 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:50:28,800 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:50:28,801 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-2.i [2020-09-24 21:50:28,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/96d8b7dc1/69338f1948124dde9f32f2e9eea2fdfc/FLAGc688a013c [2020-09-24 21:50:29,439 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:50:29,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-2.i [2020-09-24 21:50:29,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/96d8b7dc1/69338f1948124dde9f32f2e9eea2fdfc/FLAGc688a013c [2020-09-24 21:50:29,781 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/96d8b7dc1/69338f1948124dde9f32f2e9eea2fdfc [2020-09-24 21:50:29,795 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:50:29,802 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:50:29,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:50:29,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:50:29,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:50:29,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:50:29" (1/1) ... [2020-09-24 21:50:29,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@554bc22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:29, skipping insertion in model container [2020-09-24 21:50:29,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:50:29" (1/1) ... [2020-09-24 21:50:29,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:50:29,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:50:30,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:50:30,095 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:50:30,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:50:30,148 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:50:30,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:30 WrapperNode [2020-09-24 21:50:30,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:50:30,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:50:30,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:50:30,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:50:30,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:30" (1/1) ... [2020-09-24 21:50:30,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:30" (1/1) ... [2020-09-24 21:50:30,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:30" (1/1) ... [2020-09-24 21:50:30,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:30" (1/1) ... [2020-09-24 21:50:30,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:30" (1/1) ... [2020-09-24 21:50:30,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:30" (1/1) ... [2020-09-24 21:50:30,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:30" (1/1) ... [2020-09-24 21:50:30,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:50:30,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:50:30,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:50:30,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:50:30,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:30" (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 21:50:30,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:50:30,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:50:30,365 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 21:50:30,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 21:50:30,366 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:50:30,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:50:30,366 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 21:50:30,366 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 21:50:30,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 21:50:30,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-24 21:50:30,367 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:50:30,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:50:30,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:50:30,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:50:30,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:50:30,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:50:30,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:50:30,671 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:50:30,671 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 21:50:30,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:50:30 BoogieIcfgContainer [2020-09-24 21:50:30,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:50:30,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:50:30,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:50:30,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:50:30,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:50:29" (1/3) ... [2020-09-24 21:50:30,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3d7fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:50:30, skipping insertion in model container [2020-09-24 21:50:30,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:30" (2/3) ... [2020-09-24 21:50:30,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3d7fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:50:30, skipping insertion in model container [2020-09-24 21:50:30,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:50:30" (3/3) ... [2020-09-24 21:50:30,696 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_1-2.i [2020-09-24 21:50:30,708 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:50:30,718 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:50:30,740 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:50:30,767 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:50:30,767 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:50:30,767 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:50:30,767 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:50:30,768 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:50:30,768 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:50:30,768 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:50:30,768 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:50:30,794 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-09-24 21:50:30,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-24 21:50:30,802 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:50:30,804 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 21:50:30,804 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:50:30,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:50:30,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1780996077, now seen corresponding path program 1 times [2020-09-24 21:50:30,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:50:30,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1496078592] [2020-09-24 21:50:30,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:50:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:30,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:31,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:31,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:31,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:31,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 21:50:31,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:50:31,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 497 [2020-09-24 21:50:31,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:31,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:50:31,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:50:31,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:50:31,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:50:31,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:50:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:31,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:31,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:31,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:50:31,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:31,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:50:31,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:31,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:50:31,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:50:31,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:50:31,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:50:31,658 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 21:50:31,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1496078592] [2020-09-24 21:50:31,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:50:31,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:50:31,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461295246] [2020-09-24 21:50:31,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:50:31,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:50:31,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:50:31,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:50:31,695 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 5 states. [2020-09-24 21:50:31,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:50:31,918 INFO L93 Difference]: Finished difference Result 71 states and 83 transitions. [2020-09-24 21:50:31,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 21:50:31,920 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-24 21:50:31,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:50:31,935 INFO L225 Difference]: With dead ends: 71 [2020-09-24 21:50:31,935 INFO L226 Difference]: Without dead ends: 36 [2020-09-24 21:50:31,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 21:50:31,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-24 21:50:32,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2020-09-24 21:50:32,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-24 21:50:32,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2020-09-24 21:50:32,014 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 17 [2020-09-24 21:50:32,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:50:32,014 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2020-09-24 21:50:32,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:50:32,014 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2020-09-24 21:50:32,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-24 21:50:32,015 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:50:32,016 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 21:50:32,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:50:32,016 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:50:32,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:50:32,017 INFO L82 PathProgramCache]: Analyzing trace with hash -329373976, now seen corresponding path program 1 times [2020-09-24 21:50:32,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:50:32,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114896827] [2020-09-24 21:50:32,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:50:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 21:50:32,061 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 21:50:32,061 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 21:50:32,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:50:32,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:50:32 BoogieIcfgContainer [2020-09-24 21:50:32,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:50:32,129 INFO L168 Benchmark]: Toolchain (without parser) took 2330.41 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 104.1 MB in the beginning and 111.8 MB in the end (delta: -7.7 MB). Peak memory consumption was 48.9 MB. Max. memory is 7.1 GB. [2020-09-24 21:50:32,130 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 21:50:32,131 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.78 ms. Allocated memory is still 147.3 MB. Free memory was 103.4 MB in the beginning and 93.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-09-24 21:50:32,132 INFO L168 Benchmark]: Boogie Preprocessor took 138.13 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 93.4 MB in the beginning and 181.9 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-24 21:50:32,133 INFO L168 Benchmark]: RCFGBuilder took 398.20 ms. Allocated memory is still 203.9 MB. Free memory was 181.9 MB in the beginning and 166.3 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. [2020-09-24 21:50:32,134 INFO L168 Benchmark]: TraceAbstraction took 1437.34 ms. Allocated memory is still 203.9 MB. Free memory was 165.7 MB in the beginning and 111.8 MB in the end (delta: 53.9 MB). Peak memory consumption was 53.9 MB. Max. memory is 7.1 GB. [2020-09-24 21:50:32,138 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 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 346.78 ms. Allocated memory is still 147.3 MB. Free memory was 103.4 MB in the beginning and 93.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 138.13 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 93.4 MB in the beginning and 181.9 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 398.20 ms. Allocated memory is still 203.9 MB. Free memory was 181.9 MB in the beginning and 166.3 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1437.34 ms. Allocated memory is still 203.9 MB. Free memory was 165.7 MB in the beginning and 111.8 MB in the end (delta: 53.9 MB). Peak memory consumption was 53.9 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: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 22 SDslu, 55 SDs, 0 SdLazy, 49 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 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, 592 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...