/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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/verisec_NetBSD-libc_loop.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:04:16,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:04:16,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:04:16,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:04:16,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:04:16,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:04:16,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:04:16,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:04:16,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:04:16,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:04:16,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:04:16,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:04:16,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:04:16,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:04:16,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:04:16,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:04:16,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:04:16,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:04:16,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:04:16,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:04:16,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:04:16,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:04:16,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:04:16,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:04:16,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:04:16,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:04:16,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:04:16,569 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:04:16,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:04:16,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:04:16,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:04:16,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:04:16,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:04:16,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:04:16,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:04:16,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:04:16,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:04:16,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:04:16,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:04:16,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:04:16,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:04:16,581 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 00:04:16,608 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:04:16,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:04:16,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:04:16,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:04:16,609 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:04:16,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:04:16,610 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:04:16,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:04:16,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:04:16,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:04:16,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:04:16,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:04:16,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:04:16,611 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:04:16,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:04:16,615 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:04:16,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:04:16,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:04:16,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:04:16,615 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:04:16,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:04:16,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:04:16,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:04:16,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:04:16,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:04:16,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:04:16,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:04:16,617 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:04:16,617 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:04:16,617 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-25 00:04:17,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:04:17,170 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:04:17,174 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:04:17,177 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:04:17,177 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:04:17,178 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/verisec_NetBSD-libc_loop.i [2020-09-25 00:04:17,273 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd78825b7/95906a06acff46519303a9b9f36d109b/FLAG426c9bd02 [2020-09-25 00:04:17,883 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:04:17,884 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/verisec_NetBSD-libc_loop.i [2020-09-25 00:04:17,894 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd78825b7/95906a06acff46519303a9b9f36d109b/FLAG426c9bd02 [2020-09-25 00:04:18,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd78825b7/95906a06acff46519303a9b9f36d109b [2020-09-25 00:04:18,194 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:04:18,201 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:04:18,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:04:18,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:04:18,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:04:18,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:04:18" (1/1) ... [2020-09-25 00:04:18,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@256ae262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:18, skipping insertion in model container [2020-09-25 00:04:18,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:04:18" (1/1) ... [2020-09-25 00:04:18,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:04:18,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:04:18,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:04:18,481 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:04:18,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:04:18,521 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:04:18,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:18 WrapperNode [2020-09-25 00:04:18,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:04:18,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:04:18,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:04:18,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:04:18,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:18" (1/1) ... [2020-09-25 00:04:18,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:18" (1/1) ... [2020-09-25 00:04:18,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:18" (1/1) ... [2020-09-25 00:04:18,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:18" (1/1) ... [2020-09-25 00:04:18,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:18" (1/1) ... [2020-09-25 00:04:18,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:18" (1/1) ... [2020-09-25 00:04:18,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:18" (1/1) ... [2020-09-25 00:04:18,642 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:04:18,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:04:18,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:04:18,643 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:04:18,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:18" (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 00:04:18,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:04:18,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:04:18,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 00:04:18,736 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2020-09-25 00:04:18,736 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:04:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:04:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 00:04:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2020-09-25 00:04:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:04:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:04:18,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:04:18,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:04:18,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:04:18,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:04:18,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:04:19,064 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:04:19,064 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 00:04:19,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:04:19 BoogieIcfgContainer [2020-09-25 00:04:19,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:04:19,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:04:19,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:04:19,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:04:19,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:04:18" (1/3) ... [2020-09-25 00:04:19,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45041172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:04:19, skipping insertion in model container [2020-09-25 00:04:19,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:18" (2/3) ... [2020-09-25 00:04:19,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45041172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:04:19, skipping insertion in model container [2020-09-25 00:04:19,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:04:19" (3/3) ... [2020-09-25 00:04:19,088 INFO L109 eAbstractionObserver]: Analyzing ICFG verisec_NetBSD-libc_loop.i [2020-09-25 00:04:19,099 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:04:19,109 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:04:19,132 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:04:19,161 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:04:19,161 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:04:19,162 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:04:19,162 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:04:19,162 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:04:19,162 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:04:19,162 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:04:19,162 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:04:19,183 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-09-25 00:04:19,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-25 00:04:19,190 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:04:19,191 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] [2020-09-25 00:04:19,191 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:04:19,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:04:19,198 INFO L82 PathProgramCache]: Analyzing trace with hash -331406787, now seen corresponding path program 1 times [2020-09-25 00:04:19,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:04:19,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292312885] [2020-09-25 00:04:19,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:04:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:19,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:19,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:19,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 00:04:19,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:04:19,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439 [2020-09-25 00:04:19,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:19,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:04:19,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 00:04:19,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 00:04:19,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:04:20,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:04:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:20,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:20,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:20,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:04:20,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:04:20,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:04:20,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:04:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:04:20,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:04:20,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:04:20,079 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 00:04:20,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292312885] [2020-09-25 00:04:20,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:04:20,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:04:20,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056687179] [2020-09-25 00:04:20,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:04:20,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:04:20,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:04:20,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:04:20,111 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 9 states. [2020-09-25 00:04:20,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:04:20,598 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2020-09-25 00:04:20,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 00:04:20,600 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-09-25 00:04:20,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:04:20,611 INFO L225 Difference]: With dead ends: 76 [2020-09-25 00:04:20,611 INFO L226 Difference]: Without dead ends: 37 [2020-09-25 00:04:20,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:04:20,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-09-25 00:04:20,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2020-09-25 00:04:20,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-09-25 00:04:20,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2020-09-25 00:04:20,671 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 21 [2020-09-25 00:04:20,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:04:20,672 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2020-09-25 00:04:20,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:04:20,672 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2020-09-25 00:04:20,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-25 00:04:20,674 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:04:20,674 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, 1, 1] [2020-09-25 00:04:20,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:04:20,675 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:04:20,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:04:20,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1840112204, now seen corresponding path program 1 times [2020-09-25 00:04:20,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:04:20,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1666263691] [2020-09-25 00:04:20,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:04:20,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:20,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:21,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:21,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:04:21,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:04:21,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-09-25 00:04:21,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:21,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:04:21,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 00:04:21,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 00:04:21,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:04:21,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:04:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:21,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:21,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:21,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:04:21,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:04:21,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:04:21,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:21,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:04:21,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:04:21,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:04:21,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:04:21,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-25 00:04:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:21,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:21,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:21,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:04:21,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:04:21,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:04:21,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:21,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:04:21,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:04:21,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:04:21,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:04:21,264 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:04:21,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1666263691] [2020-09-25 00:04:21,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:04:21,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 00:04:21,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894412306] [2020-09-25 00:04:21,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 00:04:21,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:04:21,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 00:04:21,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:04:21,270 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 11 states. [2020-09-25 00:04:21,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:04:21,739 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2020-09-25 00:04:21,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 00:04:21,740 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2020-09-25 00:04:21,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:04:21,741 INFO L225 Difference]: With dead ends: 49 [2020-09-25 00:04:21,742 INFO L226 Difference]: Without dead ends: 47 [2020-09-25 00:04:21,743 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2020-09-25 00:04:21,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-25 00:04:21,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2020-09-25 00:04:21,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-25 00:04:21,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2020-09-25 00:04:21,753 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 31 [2020-09-25 00:04:21,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:04:21,753 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2020-09-25 00:04:21,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 00:04:21,754 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2020-09-25 00:04:21,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-09-25 00:04:21,755 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:04:21,755 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:04:21,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:04:21,756 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:04:21,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:04:21,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1122821221, now seen corresponding path program 2 times [2020-09-25 00:04:21,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:04:21,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211368558] [2020-09-25 00:04:21,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:04:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 00:04:21,777 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 00:04:21,777 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 00:04:21,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:04:21,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:04:21 BoogieIcfgContainer [2020-09-25 00:04:21,801 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 00:04:21,805 INFO L168 Benchmark]: Toolchain (without parser) took 3607.14 ms. Allocated memory was 140.0 MB in the beginning and 246.4 MB in the end (delta: 106.4 MB). Free memory was 102.7 MB in the beginning and 206.2 MB in the end (delta: -103.5 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-09-25 00:04:21,806 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 00:04:21,806 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.84 ms. Allocated memory is still 140.0 MB. Free memory was 102.1 MB in the beginning and 92.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-09-25 00:04:21,807 INFO L168 Benchmark]: Boogie Preprocessor took 119.60 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 92.4 MB in the beginning and 180.9 MB in the end (delta: -88.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-09-25 00:04:21,808 INFO L168 Benchmark]: RCFGBuilder took 426.94 ms. Allocated memory is still 202.9 MB. Free memory was 180.2 MB in the beginning and 164.9 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. [2020-09-25 00:04:21,809 INFO L168 Benchmark]: TraceAbstraction took 2729.85 ms. Allocated memory was 202.9 MB in the beginning and 246.4 MB in the end (delta: 43.5 MB). Free memory was 164.2 MB in the beginning and 206.2 MB in the end (delta: -42.0 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2020-09-25 00:04:21,813 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 318.84 ms. Allocated memory is still 140.0 MB. Free memory was 102.1 MB in the beginning and 92.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.60 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 92.4 MB in the beginning and 180.9 MB in the end (delta: -88.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 426.94 ms. Allocated memory is still 202.9 MB. Free memory was 180.2 MB in the beginning and 164.9 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2729.85 ms. Allocated memory was 202.9 MB in the beginning and 246.4 MB in the end (delta: 43.5 MB). Free memory was 164.2 MB in the beginning and 206.2 MB in the end (delta: -42.0 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] Char *tmp; [L29] Char pathbuf[1 +1]; [L31] Char *bound = pathbuf + sizeof(pathbuf) - 1; [L33] tmp = pathbuf + sizeof(pathbuf)/sizeof(*pathbuf) - 1 [L35] CALL glob2 (pathbuf, bound) [L16] Char *p; [L18] p = pathbuf [L18] COND TRUE p <= pathlim [L20] CALL __VERIFIER_assert(p<=tmp) [L4] COND FALSE !(!(cond)) [L20] RET __VERIFIER_assert(p<=tmp) [L21] *p = 1 [L18] p++ [L18] COND TRUE p <= pathlim [L20] CALL __VERIFIER_assert(p<=tmp) [L4] COND FALSE !(!(cond)) [L20] RET __VERIFIER_assert(p<=tmp) [L21] *p = 1 [L18] p++ [L18] COND TRUE p <= pathlim [L20] CALL __VERIFIER_assert(p<=tmp) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 143 SDslu, 162 SDs, 0 SdLazy, 284 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=2, 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, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 6350 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 2/4 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...