/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-patterns/array11_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 00:03:27,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 00:03:27,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 00:03:27,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 00:03:27,348 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 00:03:27,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 00:03:27,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 00:03:27,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 00:03:27,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 00:03:27,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 00:03:27,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 00:03:27,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 00:03:27,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 00:03:27,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 00:03:27,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 00:03:27,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 00:03:27,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 00:03:27,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 00:03:27,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 00:03:27,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 00:03:27,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 00:03:27,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 00:03:27,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 00:03:27,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 00:03:27,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 00:03:27,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 00:03:27,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 00:03:27,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 00:03:27,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 00:03:27,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 00:03:27,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 00:03:27,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 00:03:27,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 00:03:27,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 00:03:27,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 00:03:27,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 00:03:27,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 00:03:27,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 00:03:27,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 00:03:27,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 00:03:27,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 00:03:27,393 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 00:03:27,444 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 00:03:27,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 00:03:27,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 00:03:27,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 00:03:27,449 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 00:03:27,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 00:03:27,450 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 00:03:27,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 00:03:27,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 00:03:27,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 00:03:27,451 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 00:03:27,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 00:03:27,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 00:03:27,452 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 00:03:27,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 00:03:27,452 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 00:03:27,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 00:03:27,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 00:03:27,453 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 00:03:27,454 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 00:03:27,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 00:03:27,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 00:03:27,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 00:03:27,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 00:03:27,455 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 00:03:27,455 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 00:03:27,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 00:03:27,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 00:03:27,456 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 00:03:27,456 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 00:03:27,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 00:03:27,795 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 00:03:27,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 00:03:27,801 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 00:03:27,801 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 00:03:27,802 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-patterns/array11_pattern.c [2020-10-14 00:03:27,862 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/40ec8b2d5/28e667fcccc4474c9a1d66086abcf214/FLAG860e79d42 [2020-10-14 00:03:28,302 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 00:03:28,303 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-patterns/array11_pattern.c [2020-10-14 00:03:28,311 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/40ec8b2d5/28e667fcccc4474c9a1d66086abcf214/FLAG860e79d42 [2020-10-14 00:03:28,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/40ec8b2d5/28e667fcccc4474c9a1d66086abcf214 [2020-10-14 00:03:28,657 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 00:03:28,658 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 00:03:28,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 00:03:28,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 00:03:28,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 00:03:28,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:03:28" (1/1) ... [2020-10-14 00:03:28,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e2b0359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:28, skipping insertion in model container [2020-10-14 00:03:28,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:03:28" (1/1) ... [2020-10-14 00:03:28,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 00:03:28,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 00:03:28,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:03:28,880 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 00:03:28,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:03:29,020 INFO L208 MainTranslator]: Completed translation [2020-10-14 00:03:29,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:29 WrapperNode [2020-10-14 00:03:29,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 00:03:29,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 00:03:29,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 00:03:29,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 00:03:29,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:29" (1/1) ... [2020-10-14 00:03:29,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:29" (1/1) ... [2020-10-14 00:03:29,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:29" (1/1) ... [2020-10-14 00:03:29,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:29" (1/1) ... [2020-10-14 00:03:29,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:29" (1/1) ... [2020-10-14 00:03:29,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:29" (1/1) ... [2020-10-14 00:03:29,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:29" (1/1) ... [2020-10-14 00:03:29,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 00:03:29,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 00:03:29,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 00:03:29,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 00:03:29,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 00:03:29,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 00:03:29,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 00:03:29,137 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 00:03:29,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 00:03:29,137 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 00:03:29,137 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 00:03:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 00:03:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 00:03:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 00:03:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 00:03:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2020-10-14 00:03:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 00:03:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 00:03:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 00:03:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 00:03:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 00:03:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 00:03:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 00:03:29,409 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 00:03:29,409 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-14 00:03:29,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:03:29 BoogieIcfgContainer [2020-10-14 00:03:29,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 00:03:29,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 00:03:29,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 00:03:29,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 00:03:29,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:03:28" (1/3) ... [2020-10-14 00:03:29,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e016fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:03:29, skipping insertion in model container [2020-10-14 00:03:29,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:29" (2/3) ... [2020-10-14 00:03:29,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e016fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:03:29, skipping insertion in model container [2020-10-14 00:03:29,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:03:29" (3/3) ... [2020-10-14 00:03:29,422 INFO L109 eAbstractionObserver]: Analyzing ICFG array11_pattern.c [2020-10-14 00:03:29,434 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 00:03:29,441 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 00:03:29,463 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 00:03:29,511 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 00:03:29,512 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 00:03:29,512 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 00:03:29,512 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 00:03:29,512 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 00:03:29,513 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 00:03:29,513 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 00:03:29,513 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 00:03:29,537 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-10-14 00:03:29,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-14 00:03:29,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:03:29,551 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] [2020-10-14 00:03:29,552 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:03:29,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:03:29,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1621612706, now seen corresponding path program 1 times [2020-10-14 00:03:29,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:03:29,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447543008] [2020-10-14 00:03:29,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:03:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:03:29,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:03:29,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:03:29,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:03:30,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:03:30,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 00:03:30,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:03:30,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 427 [2020-10-14 00:03:30,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:03:30,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:03:30,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:03:30,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 00:03:30,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:03:30,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 00:03:30,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:03:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:03:30,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:03:30,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:03:30,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:03:30,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:03:30,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:03:30,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:03:30,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:03:30,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:03:30,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:03:30,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:03:30,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:03:30,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 00:03:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:03:30,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:03:30,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:03:30,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:03:30,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:03:30,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:03:30,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:03:30,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:03:30,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:03:30,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:03:30,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:03:30,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:03:30,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 00:03:30,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:03:30,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447543008] [2020-10-14 00:03:30,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 00:03:30,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 00:03:30,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270953861] [2020-10-14 00:03:30,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 00:03:30,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:03:30,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 00:03:30,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 00:03:30,246 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 3 states. [2020-10-14 00:03:30,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:03:30,411 INFO L93 Difference]: Finished difference Result 63 states and 85 transitions. [2020-10-14 00:03:30,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 00:03:30,414 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-10-14 00:03:30,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:03:30,430 INFO L225 Difference]: With dead ends: 63 [2020-10-14 00:03:30,430 INFO L226 Difference]: Without dead ends: 28 [2020-10-14 00:03:30,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 00:03:30,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-14 00:03:30,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-14 00:03:30,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-14 00:03:30,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-10-14 00:03:30,480 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 20 [2020-10-14 00:03:30,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:03:30,480 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-10-14 00:03:30,480 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 00:03:30,481 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-10-14 00:03:30,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-14 00:03:30,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:03:30,483 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:03:30,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 00:03:30,484 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:03:30,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:03:30,484 INFO L82 PathProgramCache]: Analyzing trace with hash -311384031, now seen corresponding path program 1 times [2020-10-14 00:03:30,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:03:30,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [4734764] [2020-10-14 00:03:30,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:03:30,513 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-14 00:03:30,514 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-14 00:03:30,515 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 00:03:30,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 00:03:30,550 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-14 00:03:30,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 12:03:30 BoogieIcfgContainer [2020-10-14 00:03:30,550 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 00:03:30,553 INFO L168 Benchmark]: Toolchain (without parser) took 1894.30 ms. Allocated memory was 149.4 MB in the beginning and 205.0 MB in the end (delta: 55.6 MB). Free memory was 105.5 MB in the beginning and 111.0 MB in the end (delta: -5.5 MB). Peak memory consumption was 50.1 MB. Max. memory is 7.1 GB. [2020-10-14 00:03:30,555 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 149.4 MB. Free memory was 123.9 MB in the beginning and 123.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-14 00:03:30,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.08 ms. Allocated memory was 149.4 MB in the beginning and 205.0 MB in the end (delta: 55.6 MB). Free memory was 105.3 MB in the beginning and 184.0 MB in the end (delta: -78.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-10-14 00:03:30,557 INFO L168 Benchmark]: Boogie Preprocessor took 43.40 ms. Allocated memory is still 205.0 MB. Free memory was 184.0 MB in the beginning and 181.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-10-14 00:03:30,558 INFO L168 Benchmark]: RCFGBuilder took 347.36 ms. Allocated memory is still 205.0 MB. Free memory was 181.7 MB in the beginning and 163.4 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB. [2020-10-14 00:03:30,559 INFO L168 Benchmark]: TraceAbstraction took 1135.67 ms. Allocated memory is still 205.0 MB. Free memory was 163.4 MB in the beginning and 111.0 MB in the end (delta: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 7.1 GB. [2020-10-14 00:03:30,564 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 149.4 MB. Free memory was 123.9 MB in the beginning and 123.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 363.08 ms. Allocated memory was 149.4 MB in the beginning and 205.0 MB in the end (delta: 55.6 MB). Free memory was 105.3 MB in the beginning and 184.0 MB in the end (delta: -78.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.40 ms. Allocated memory is still 205.0 MB. Free memory was 184.0 MB in the beginning and 181.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 347.36 ms. Allocated memory is still 205.0 MB. Free memory was 181.7 MB in the beginning and 163.4 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1135.67 ms. Allocated memory is still 205.0 MB. Free memory was 163.4 MB in the beginning and 111.0 MB in the end (delta: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 31]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L35] signed long long ARR_SIZE ; [L39] ARR_SIZE = (signed long long)__VERIFIER_nondet_short() [L40] CALL assume_abort_if_not(ARR_SIZE > 0) [L29] COND FALSE !(!cond) [L40] RET assume_abort_if_not(ARR_SIZE > 0) [L42] int array1[ARR_SIZE] ; [L43] int array2[ARR_SIZE] ; [L44] int count = 0, num = -1 ; [L45] signed long long sum = 0 ; [L46] int temp ; [L47] signed long long index ; [L49] count=0 [L49] COND FALSE !(count=0 && index < ARR_SIZE) [L29] COND FALSE !(!cond) [L59] RET assume_abort_if_not(index>=0 && index < ARR_SIZE) [L61] array1[index] = num * (num * (num * (num *index))) [L62] EXPR (index == ARR_SIZE-1) ? index : (num * index) [L62] array2[index] = (index == ARR_SIZE-1) ? index : (num * index) [L65] temp = __VERIFIER_nondet_int() [L66] COND TRUE temp == 0 [L69] count=0 [L69] COND FALSE !(count