/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:33:03,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:33:03,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:33:03,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:33:03,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:33:03,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:33:03,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:33:03,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:33:03,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:33:03,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:33:03,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:33:03,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:33:03,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:33:03,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:33:03,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:33:03,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:33:03,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:33:03,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:33:03,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:33:03,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:33:03,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:33:03,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:33:03,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:33:03,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:33:03,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:33:03,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:33:03,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:33:03,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:33:03,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:33:03,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:33:03,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:33:03,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:33:03,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:33:03,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:33:03,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:33:03,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:33:03,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:33:03,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:33:03,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:33:03,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:33:03,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:33:03,356 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:33:03,405 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:33:03,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:33:03,408 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:33:03,408 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:33:03,408 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:33:03,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:33:03,409 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:33:03,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:33:03,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:33:03,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:33:03,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:33:03,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:33:03,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:33:03,412 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:33:03,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:33:03,412 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:33:03,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:33:03,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:33:03,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:33:03,413 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:33:03,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:33:03,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:33:03,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:33:03,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:33:03,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:33:03,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:33:03,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:33:03,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:33:03,415 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:33:03,415 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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:33:03,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:33:03,929 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:33:03,934 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:33:03,938 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:33:03,938 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:33:03,940 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c [2020-09-25 14:33:04,031 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1434e4b23/1d86a49a4e434cb69920b0c87e0ada0c/FLAG18291433a [2020-09-25 14:33:04,563 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:33:04,564 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c [2020-09-25 14:33:04,573 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1434e4b23/1d86a49a4e434cb69920b0c87e0ada0c/FLAG18291433a [2020-09-25 14:33:04,913 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1434e4b23/1d86a49a4e434cb69920b0c87e0ada0c [2020-09-25 14:33:04,925 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:33:04,930 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:33:04,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:33:04,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:33:04,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:33:04,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:33:04" (1/1) ... [2020-09-25 14:33:04,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bfa0d51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:04, skipping insertion in model container [2020-09-25 14:33:04,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:33:04" (1/1) ... [2020-09-25 14:33:04,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:33:04,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:33:05,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:33:05,193 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:33:05,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:33:05,230 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:33:05,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:05 WrapperNode [2020-09-25 14:33:05,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:33:05,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:33:05,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:33:05,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:33:05,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:05" (1/1) ... [2020-09-25 14:33:05,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:05" (1/1) ... [2020-09-25 14:33:05,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:05" (1/1) ... [2020-09-25 14:33:05,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:05" (1/1) ... [2020-09-25 14:33:05,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:05" (1/1) ... [2020-09-25 14:33:05,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:05" (1/1) ... [2020-09-25 14:33:05,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:05" (1/1) ... [2020-09-25 14:33:05,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:33:05,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:33:05,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:33:05,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:33:05,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:05" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:33:05,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:33:05,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:33:05,452 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2020-09-25 14:33:05,452 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-09-25 14:33:05,452 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:33:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:33:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-09-25 14:33:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2020-09-25 14:33:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:33:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:33:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:33:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:33:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:33:05,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:33:05,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:33:05,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:33:05,746 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:33:05,747 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 14:33:05,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:33:05 BoogieIcfgContainer [2020-09-25 14:33:05,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:33:05,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:33:05,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:33:05,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:33:05,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:33:04" (1/3) ... [2020-09-25 14:33:05,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d930d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:33:05, skipping insertion in model container [2020-09-25 14:33:05,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:05" (2/3) ... [2020-09-25 14:33:05,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d930d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:33:05, skipping insertion in model container [2020-09-25 14:33:05,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:33:05" (3/3) ... [2020-09-25 14:33:05,776 INFO L109 eAbstractionObserver]: Analyzing ICFG simple-recursive.c [2020-09-25 14:33:05,788 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:33:05,798 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:33:05,821 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:33:05,849 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:33:05,850 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:33:05,850 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:33:05,850 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:33:05,850 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:33:05,850 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:33:05,850 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:33:05,850 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:33:05,873 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-09-25 14:33:05,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-25 14:33:05,881 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:33:05,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:33:05,882 INFO L427 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:33:05,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:33:05,889 INFO L82 PathProgramCache]: Analyzing trace with hash 474032392, now seen corresponding path program 1 times [2020-09-25 14:33:05,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:33:05,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1947786141] [2020-09-25 14:33:05,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:33:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:06,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:06,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:06,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 14:33:06,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:06,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 414 [2020-09-25 14:33:06,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:06,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:06,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:33:06,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 14:33:06,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:33:06,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:33:06,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:33:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:06,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:06,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:06,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:33:06,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:06,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:33:06,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:06,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:06,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:33:06,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:06,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:33:06,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:06,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:33:06,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1947786141] [2020-09-25 14:33:06,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:33:06,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:33:06,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073038034] [2020-09-25 14:33:06,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:33:06,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:33:06,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:33:06,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:33:06,682 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 7 states. [2020-09-25 14:33:07,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:33:07,017 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2020-09-25 14:33:07,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:33:07,020 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-09-25 14:33:07,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:33:07,033 INFO L225 Difference]: With dead ends: 65 [2020-09-25 14:33:07,034 INFO L226 Difference]: Without dead ends: 37 [2020-09-25 14:33:07,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:33:07,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-09-25 14:33:07,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2020-09-25 14:33:07,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-25 14:33:07,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2020-09-25 14:33:07,097 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 22 [2020-09-25 14:33:07,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:33:07,097 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2020-09-25 14:33:07,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:33:07,098 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2020-09-25 14:33:07,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 14:33:07,099 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:33:07,100 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:33:07,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:33:07,101 INFO L427 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:33:07,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:33:07,101 INFO L82 PathProgramCache]: Analyzing trace with hash 705842607, now seen corresponding path program 1 times [2020-09-25 14:33:07,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:33:07,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716103633] [2020-09-25 14:33:07,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:33:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:07,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:07,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:08,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:08,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 14:33:08,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:33:08,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1524 [2020-09-25 14:33:08,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:08,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:08,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 14:33:08,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 14:33:08,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:33:08,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:33:08,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:33:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:08,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:08,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:08,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:33:08,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:08,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:33:08,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:08,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:08,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:33:08,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:08,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:33:08,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:08,925 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:33:08,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1716103633] [2020-09-25 14:33:08,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:33:08,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 14:33:08,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669143796] [2020-09-25 14:33:08,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 14:33:08,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:33:08,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 14:33:08,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-09-25 14:33:08,930 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 15 states. [2020-09-25 14:33:09,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:33:09,850 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2020-09-25 14:33:09,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 14:33:09,851 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 34 [2020-09-25 14:33:09,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:33:09,851 INFO L225 Difference]: With dead ends: 37 [2020-09-25 14:33:09,852 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 14:33:09,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=178, Invalid=878, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 14:33:09,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 14:33:09,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 14:33:09,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 14:33:09,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 14:33:09,855 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2020-09-25 14:33:09,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:33:09,856 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 14:33:09,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 14:33:09,856 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 14:33:09,856 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 14:33:09,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:33:09,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 14:33:10,045 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 14:33:10,045 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 14:33:10,045 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 14:33:10,046 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-25 14:33:10,046 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 14:33:10,046 INFO L268 CegarLoopResult]: For program point fooEXIT(lines 9 18) no Hoare annotation was computed. [2020-09-25 14:33:10,047 INFO L264 CegarLoopResult]: At program point fooENTRY(lines 9 18) the Hoare annotation is: (let ((.cse1 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|)) (.cse0 (select (select |#memory_int| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (or (<= .cse0 20) (not (<= .cse1 20))) (or (not (= .cse1 10)) (= 10 .cse0)))) [2020-09-25 14:33:10,047 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 14:33:10,047 INFO L268 CegarLoopResult]: For program point fooErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-09-25 14:33:10,047 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 14:33:10,047 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (or (and (<= (select (select |#memory_int| foo_~p.base) foo_~p.offset) 19) (<= (select (select |#memory_int| |foo_#in~p.base|) |foo_#in~p.offset|) 20)) (not (<= (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|) 20))) [2020-09-25 14:33:10,048 INFO L268 CegarLoopResult]: For program point L12-1(lines 12 17) no Hoare annotation was computed. [2020-09-25 14:33:10,048 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 14:33:10,048 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 14:33:10,048 INFO L268 CegarLoopResult]: For program point L10-1(lines 10 17) no Hoare annotation was computed. [2020-09-25 14:33:10,048 INFO L268 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-09-25 14:33:10,049 INFO L268 CegarLoopResult]: For program point L10-2(line 10) no Hoare annotation was computed. [2020-09-25 14:33:10,049 INFO L268 CegarLoopResult]: For program point L10-3(line 10) no Hoare annotation was computed. [2020-09-25 14:33:10,049 INFO L268 CegarLoopResult]: For program point L10-4(lines 9 18) no Hoare annotation was computed. [2020-09-25 14:33:10,049 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 14:33:10,049 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 14:33:10,050 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 14:33:10,050 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 14:33:10,050 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 20 26) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-25 14:33:10,050 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 20 26) no Hoare annotation was computed. [2020-09-25 14:33:10,050 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 14:33:10,050 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 20 26) no Hoare annotation was computed. [2020-09-25 14:33:10,051 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 14:33:10,051 INFO L264 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 10) [2020-09-25 14:33:10,051 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 14:33:10,051 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-09-25 14:33:10,051 INFO L268 CegarLoopResult]: For program point L20(lines 20 26) no Hoare annotation was computed. [2020-09-25 14:33:10,052 INFO L268 CegarLoopResult]: For program point L22-2(line 22) no Hoare annotation was computed. [2020-09-25 14:33:10,052 INFO L268 CegarLoopResult]: For program point L22-3(line 22) no Hoare annotation was computed. [2020-09-25 14:33:10,052 INFO L268 CegarLoopResult]: For program point L5-4(line 5) no Hoare annotation was computed. [2020-09-25 14:33:10,052 INFO L268 CegarLoopResult]: For program point plusFINAL(lines 4 7) no Hoare annotation was computed. [2020-09-25 14:33:10,052 INFO L264 CegarLoopResult]: At program point plusENTRY(lines 4 7) the Hoare annotation is: (or (<= (select (select |#memory_int| |plus_#in~p.base|) |plus_#in~p.offset|) 19) (not (<= (select (select |old(#memory_int)| |plus_#in~p.base|) |plus_#in~p.offset|) 19))) [2020-09-25 14:33:10,053 INFO L268 CegarLoopResult]: For program point plusEXIT(lines 4 7) no Hoare annotation was computed. [2020-09-25 14:33:10,053 INFO L264 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: (or (<= (select (select |#memory_int| plus_~p.base) plus_~p.offset) 20) (not (<= (select (select |old(#memory_int)| |plus_#in~p.base|) |plus_#in~p.offset|) 19))) [2020-09-25 14:33:10,053 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-25 14:33:10,053 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-25 14:33:10,053 INFO L268 CegarLoopResult]: For program point L5-2(line 5) no Hoare annotation was computed. [2020-09-25 14:33:10,054 INFO L268 CegarLoopResult]: For program point L5-3(line 5) no Hoare annotation was computed. [2020-09-25 14:33:10,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:33:10 BoogieIcfgContainer [2020-09-25 14:33:10,062 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 14:33:10,066 INFO L168 Benchmark]: Toolchain (without parser) took 5137.65 ms. Allocated memory was 147.3 MB in the beginning and 244.3 MB in the end (delta: 97.0 MB). Free memory was 102.0 MB in the beginning and 202.5 MB in the end (delta: -100.5 MB). Peak memory consumption was 99.9 MB. Max. memory is 7.1 GB. [2020-09-25 14:33:10,067 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 147.3 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-25 14:33:10,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.67 ms. Allocated memory is still 147.3 MB. Free memory was 101.4 MB in the beginning and 91.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-09-25 14:33:10,069 INFO L168 Benchmark]: Boogie Preprocessor took 134.37 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 91.4 MB in the beginning and 182.5 MB in the end (delta: -91.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-09-25 14:33:10,070 INFO L168 Benchmark]: RCFGBuilder took 395.92 ms. Allocated memory is still 204.5 MB. Free memory was 182.5 MB in the beginning and 166.7 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2020-09-25 14:33:10,071 INFO L168 Benchmark]: TraceAbstraction took 4298.82 ms. Allocated memory was 204.5 MB in the beginning and 244.3 MB in the end (delta: 39.8 MB). Free memory was 166.1 MB in the beginning and 202.5 MB in the end (delta: -36.4 MB). Peak memory consumption was 106.8 MB. Max. memory is 7.1 GB. [2020-09-25 14:33:10,076 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 147.3 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 299.67 ms. Allocated memory is still 147.3 MB. Free memory was 101.4 MB in the beginning and 91.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.37 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 91.4 MB in the beginning and 182.5 MB in the end (delta: -91.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 395.92 ms. Allocated memory is still 204.5 MB. Free memory was 182.5 MB in the beginning and 166.7 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4298.82 ms. Allocated memory was 204.5 MB in the beginning and 244.3 MB in the end (delta: 39.8 MB). Free memory was 166.1 MB in the beginning and 202.5 MB in the end (delta: -36.4 MB). Peak memory consumption was 106.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 71 SDslu, 182 SDs, 0 SdLazy, 367 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 13 PreInvPairs, 13 NumberOfFragments, 111 HoareAnnotationTreeSize, 13 FomulaSimplifications, 70 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 83 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 5505 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 2/3 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 correct! Received shutdown request...