/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/callfpointer.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 10:29:15,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 10:29:15,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 10:29:15,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 10:29:15,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 10:29:15,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 10:29:15,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 10:29:15,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 10:29:15,683 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 10:29:15,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 10:29:15,685 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 10:29:15,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 10:29:15,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 10:29:15,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 10:29:15,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 10:29:15,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 10:29:15,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 10:29:15,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 10:29:15,692 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 10:29:15,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 10:29:15,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 10:29:15,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 10:29:15,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 10:29:15,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 10:29:15,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 10:29:15,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 10:29:15,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 10:29:15,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 10:29:15,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 10:29:15,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 10:29:15,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 10:29:15,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 10:29:15,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 10:29:15,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 10:29:15,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 10:29:15,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 10:29:15,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 10:29:15,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 10:29:15,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 10:29:15,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 10:29:15,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 10:29:15,711 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 10:29:15,737 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 10:29:15,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 10:29:15,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 10:29:15,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 10:29:15,739 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 10:29:15,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 10:29:15,741 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 10:29:15,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 10:29:15,742 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 10:29:15,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 10:29:15,742 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 10:29:15,742 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 10:29:15,742 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 10:29:15,743 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 10:29:15,743 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 10:29:15,743 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 10:29:15,743 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 10:29:15,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 10:29:15,744 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 10:29:15,744 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 10:29:15,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 10:29:15,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:29:15,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 10:29:15,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 10:29:15,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 10:29:15,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 10:29:15,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 10:29:15,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 10:29:15,748 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 10:29:15,748 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 10:29:16,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 10:29:16,087 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 10:29:16,094 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 10:29:16,101 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 10:29:16,102 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 10:29:16,103 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/callfpointer.i [2020-10-13 10:29:16,163 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfe706da1/b9a10a616879472bad11c766da2953aa/FLAG799d1aa68 [2020-10-13 10:29:16,587 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 10:29:16,588 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/callfpointer.i [2020-10-13 10:29:16,594 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfe706da1/b9a10a616879472bad11c766da2953aa/FLAG799d1aa68 [2020-10-13 10:29:16,978 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfe706da1/b9a10a616879472bad11c766da2953aa [2020-10-13 10:29:16,989 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 10:29:16,991 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 10:29:16,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 10:29:16,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 10:29:16,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 10:29:16,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:29:16" (1/1) ... [2020-10-13 10:29:17,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69fc9fb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:17, skipping insertion in model container [2020-10-13 10:29:17,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:29:16" (1/1) ... [2020-10-13 10:29:17,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 10:29:17,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 10:29:17,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:29:17,200 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 10:29:17,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:29:17,222 INFO L208 MainTranslator]: Completed translation [2020-10-13 10:29:17,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:17 WrapperNode [2020-10-13 10:29:17,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 10:29:17,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 10:29:17,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 10:29:17,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 10:29:17,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:17" (1/1) ... [2020-10-13 10:29:17,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:17" (1/1) ... [2020-10-13 10:29:17,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:17" (1/1) ... [2020-10-13 10:29:17,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:17" (1/1) ... [2020-10-13 10:29:17,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:17" (1/1) ... [2020-10-13 10:29:17,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:17" (1/1) ... [2020-10-13 10:29:17,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:17" (1/1) ... [2020-10-13 10:29:17,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 10:29:17,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 10:29:17,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 10:29:17,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 10:29:17,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:17" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:29:17,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 10:29:17,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 10:29:17,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2020-10-13 10:29:17,387 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-13 10:29:17,388 INFO L138 BoogieDeclarations]: Found implementation of procedure h [2020-10-13 10:29:17,388 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 10:29:17,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 10:29:17,388 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-13 10:29:17,388 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2020-10-13 10:29:17,388 INFO L130 BoogieDeclarations]: Found specification of procedure h [2020-10-13 10:29:17,388 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 10:29:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 10:29:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 10:29:17,529 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 10:29:17,529 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 10:29:17,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:29:17 BoogieIcfgContainer [2020-10-13 10:29:17,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 10:29:17,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 10:29:17,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 10:29:17,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 10:29:17,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:29:16" (1/3) ... [2020-10-13 10:29:17,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40488580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:29:17, skipping insertion in model container [2020-10-13 10:29:17,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:17" (2/3) ... [2020-10-13 10:29:17,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40488580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:29:17, skipping insertion in model container [2020-10-13 10:29:17,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:29:17" (3/3) ... [2020-10-13 10:29:17,541 INFO L109 eAbstractionObserver]: Analyzing ICFG callfpointer.i [2020-10-13 10:29:17,549 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 10:29:17,555 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 10:29:17,569 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 10:29:17,590 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 10:29:17,591 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 10:29:17,591 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 10:29:17,591 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 10:29:17,591 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 10:29:17,591 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 10:29:17,592 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 10:29:17,592 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 10:29:17,610 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-10-13 10:29:17,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-13 10:29:17,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:29:17,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:29:17,617 INFO L427 AbstractCegarLoop]: === Iteration 1 === [hErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:29:17,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:29:17,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1027422766, now seen corresponding path program 1 times [2020-10-13 10:29:17,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:29:17,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1505253677] [2020-10-13 10:29:17,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:29:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 10:29:17,731 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 10:29:17,731 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 10:29:17,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 10:29:17,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:29:17 BoogieIcfgContainer [2020-10-13 10:29:17,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 10:29:17,749 INFO L168 Benchmark]: Toolchain (without parser) took 756.98 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 104.2 MB in the beginning and 160.0 MB in the end (delta: -55.8 MB). Peak memory consumption was 7.1 MB. Max. memory is 7.1 GB. [2020-10-13 10:29:17,750 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 10:29:17,751 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.99 ms. Allocated memory is still 141.0 MB. Free memory was 104.0 MB in the beginning and 94.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-10-13 10:29:17,752 INFO L168 Benchmark]: Boogie Preprocessor took 103.14 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 94.8 MB in the beginning and 183.1 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-10-13 10:29:17,753 INFO L168 Benchmark]: RCFGBuilder took 205.43 ms. Allocated memory is still 203.9 MB. Free memory was 182.4 MB in the beginning and 171.4 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-10-13 10:29:17,754 INFO L168 Benchmark]: TraceAbstraction took 211.80 ms. Allocated memory is still 203.9 MB. Free memory was 171.4 MB in the beginning and 160.0 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2020-10-13 10:29:17,758 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 228.99 ms. Allocated memory is still 141.0 MB. Free memory was 104.0 MB in the beginning and 94.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.14 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 94.8 MB in the beginning and 183.1 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 205.43 ms. Allocated memory is still 203.9 MB. Free memory was 182.4 MB in the beginning and 171.4 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211.80 ms. Allocated memory is still 203.9 MB. Free memory was 171.4 MB in the beginning and 160.0 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 14]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L20] CALL f(h) [L9] CALL g(1) [L13] COND TRUE i==1 [L14] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...