/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 05:39:00,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 05:39:00,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 05:39:00,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 05:39:00,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 05:39:00,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 05:39:00,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 05:39:00,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 05:39:00,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 05:39:00,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 05:39:00,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 05:39:00,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 05:39:00,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 05:39:00,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 05:39:00,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 05:39:00,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 05:39:00,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 05:39:00,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 05:39:00,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 05:39:00,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 05:39:00,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 05:39:00,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 05:39:00,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 05:39:00,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 05:39:00,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 05:39:00,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 05:39:00,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 05:39:00,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 05:39:00,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 05:39:00,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 05:39:00,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 05:39:00,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 05:39:00,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 05:39:00,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 05:39:00,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 05:39:00,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 05:39:00,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 05:39:00,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 05:39:00,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 05:39:00,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 05:39:00,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 05:39:00,801 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 05:39:00,841 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 05:39:00,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 05:39:00,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 05:39:00,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 05:39:00,843 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 05:39:00,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 05:39:00,844 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 05:39:00,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 05:39:00,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 05:39:00,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 05:39:00,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 05:39:00,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 05:39:00,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 05:39:00,846 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 05:39:00,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 05:39:00,846 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 05:39:00,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 05:39:00,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 05:39:00,847 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 05:39:00,847 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 05:39:00,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 05:39:00,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 05:39:00,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 05:39:00,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 05:39:00,848 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 05:39:00,848 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 05:39:00,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 05:39:00,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 05:39:00,849 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 05:39:00,849 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 05:39:01,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 05:39:01,186 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 05:39:01,194 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 05:39:01,196 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 05:39:01,197 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 05:39:01,197 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2020-10-14 05:39:01,253 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f76e97aa/67e286919b4c420cbb46a648af31a6f2/FLAGcc1e90d03 [2020-10-14 05:39:01,646 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 05:39:01,647 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2020-10-14 05:39:01,654 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f76e97aa/67e286919b4c420cbb46a648af31a6f2/FLAGcc1e90d03 [2020-10-14 05:39:02,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f76e97aa/67e286919b4c420cbb46a648af31a6f2 [2020-10-14 05:39:02,028 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 05:39:02,029 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 05:39:02,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 05:39:02,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 05:39:02,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 05:39:02,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:39:02" (1/1) ... [2020-10-14 05:39:02,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3062223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:02, skipping insertion in model container [2020-10-14 05:39:02,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:39:02" (1/1) ... [2020-10-14 05:39:02,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 05:39:02,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 05:39:02,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:39:02,235 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 05:39:02,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:39:02,263 INFO L208 MainTranslator]: Completed translation [2020-10-14 05:39:02,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:02 WrapperNode [2020-10-14 05:39:02,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 05:39:02,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 05:39:02,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 05:39:02,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 05:39:02,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:02" (1/1) ... [2020-10-14 05:39:02,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:02" (1/1) ... [2020-10-14 05:39:02,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:02" (1/1) ... [2020-10-14 05:39:02,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:02" (1/1) ... [2020-10-14 05:39:02,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:02" (1/1) ... [2020-10-14 05:39:02,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:02" (1/1) ... [2020-10-14 05:39:02,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:02" (1/1) ... [2020-10-14 05:39:02,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 05:39:02,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 05:39:02,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 05:39:02,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 05:39:02,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 05:39:02,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 05:39:02,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 05:39:02,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 05:39:02,455 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2020-10-14 05:39:02,455 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 05:39:02,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 05:39:02,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 05:39:02,456 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2020-10-14 05:39:02,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 05:39:02,456 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 05:39:02,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 05:39:02,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 05:39:02,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 05:39:02,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 05:39:02,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 05:39:02,795 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 05:39:02,795 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 05:39:02,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:39:02 BoogieIcfgContainer [2020-10-14 05:39:02,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 05:39:02,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 05:39:02,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 05:39:02,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 05:39:02,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:39:02" (1/3) ... [2020-10-14 05:39:02,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b86bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:39:02, skipping insertion in model container [2020-10-14 05:39:02,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:02" (2/3) ... [2020-10-14 05:39:02,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b86bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:39:02, skipping insertion in model container [2020-10-14 05:39:02,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:39:02" (3/3) ... [2020-10-14 05:39:02,809 INFO L109 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc_loop.i [2020-10-14 05:39:02,824 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 05:39:02,838 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 05:39:02,856 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 05:39:02,883 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 05:39:02,883 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 05:39:02,883 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 05:39:02,884 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 05:39:02,884 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 05:39:02,884 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 05:39:02,884 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 05:39:02,884 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 05:39:02,911 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-14 05:39:02,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-14 05:39:02,917 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:39:02,918 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:39:02,918 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:39:02,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:39:02,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1626450083, now seen corresponding path program 1 times [2020-10-14 05:39:02,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:39:02,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1440800941] [2020-10-14 05:39:02,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:39:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:03,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:03,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:03,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 05:39:03,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:39:03,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-10-14 05:39:03,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:03,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:03,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:39:03,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:39:03,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 05:39:03,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 05:39:03,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:39:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:03,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:03,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:03,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:39:03,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:39:03,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:39:03,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:03,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:03,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:39:03,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:39:03,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:39:03,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:39:03,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:39:03,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1440800941] [2020-10-14 05:39:03,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:39:03,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 05:39:03,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242192188] [2020-10-14 05:39:03,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 05:39:03,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:39:03,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 05:39:03,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:39:03,667 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 8 states. [2020-10-14 05:39:03,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:39:03,976 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2020-10-14 05:39:03,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 05:39:03,978 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-10-14 05:39:03,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:39:03,986 INFO L225 Difference]: With dead ends: 55 [2020-10-14 05:39:03,987 INFO L226 Difference]: Without dead ends: 26 [2020-10-14 05:39:03,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-14 05:39:04,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-14 05:39:04,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2020-10-14 05:39:04,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-14 05:39:04,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2020-10-14 05:39:04,034 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 13 [2020-10-14 05:39:04,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:39:04,035 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2020-10-14 05:39:04,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 05:39:04,035 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2020-10-14 05:39:04,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-14 05:39:04,036 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:39:04,037 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:39:04,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 05:39:04,037 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:39:04,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:39:04,038 INFO L82 PathProgramCache]: Analyzing trace with hash -519824651, now seen corresponding path program 1 times [2020-10-14 05:39:04,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:39:04,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [798935598] [2020-10-14 05:39:04,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:39:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:04,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:04,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:04,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:04,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 05:39:04,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:39:04,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-10-14 05:39:04,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:04,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:04,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:39:04,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:39:04,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 05:39:04,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 05:39:04,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:39:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:04,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:04,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:04,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:39:04,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:39:04,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:39:04,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:04,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:04,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:39:04,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:39:04,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:39:04,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:39:04,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:39:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:04,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:04,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:04,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:39:04,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:39:04,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 05:39:04,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:04,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:04,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:39:04,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:39:04,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:39:04,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:39:04,530 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 05:39:04,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [798935598] [2020-10-14 05:39:04,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:39:04,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 05:39:04,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854667919] [2020-10-14 05:39:04,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 05:39:04,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:39:04,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 05:39:04,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-14 05:39:04,535 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 9 states. [2020-10-14 05:39:04,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:39:04,758 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2020-10-14 05:39:04,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 05:39:04,759 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-14 05:39:04,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:39:04,759 INFO L225 Difference]: With dead ends: 24 [2020-10-14 05:39:04,760 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 05:39:04,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-10-14 05:39:04,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 05:39:04,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 05:39:04,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 05:39:04,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 05:39:04,762 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-14 05:39:04,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:39:04,763 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 05:39:04,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 05:39:04,763 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 05:39:04,763 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 05:39:04,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 05:39:04,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 05:39:05,017 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-14 05:39:05,018 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~tmp~0.base |old(~tmp~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~tmp~0.offset |old(~tmp~0.offset)|) (= |old(#valid)| |#valid|)) [2020-10-14 05:39:05,018 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 05:39:05,018 INFO L271 CegarLoopResult]: At program point glob2ENTRY(lines 14 25) the Hoare annotation is: true [2020-10-14 05:39:05,018 INFO L268 CegarLoopResult]: For program point glob2EXIT(lines 14 25) no Hoare annotation was computed. [2020-10-14 05:39:05,019 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (or (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset)) (not (<= |glob2_#in~pathlim.base| ~tmp~0.base)) (not (<= ~tmp~0.base |glob2_#in~pathlim.base|)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (and (<= glob2_~p~0.offset ~tmp~0.offset) (<= glob2_~pathlim.base ~tmp~0.base) (<= ~tmp~0.base glob2_~p~0.base) (<= glob2_~pathlim.offset ~tmp~0.offset) (<= ~tmp~0.base glob2_~pathlim.base) (< glob2_~p~0.base (+ ~tmp~0.base 1))) (not (<= (+ |glob2_#in~pathbuf.offset| 4) ~tmp~0.offset))) [2020-10-14 05:39:05,019 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-10-14 05:39:05,019 INFO L268 CegarLoopResult]: For program point L18-2(lines 18 22) no Hoare annotation was computed. [2020-10-14 05:39:05,019 INFO L264 CegarLoopResult]: At program point L18-3(lines 18 22) the Hoare annotation is: (or (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset)) (not (<= |glob2_#in~pathlim.base| ~tmp~0.base)) (not (<= ~tmp~0.base |glob2_#in~pathlim.base|)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (<= (+ |glob2_#in~pathbuf.offset| 4) ~tmp~0.offset)) (and (<= glob2_~pathlim.base ~tmp~0.base) (<= glob2_~pathlim.offset ~tmp~0.offset) (<= ~tmp~0.base glob2_~pathlim.base))) [2020-10-14 05:39:05,019 INFO L268 CegarLoopResult]: For program point L18-4(lines 18 22) no Hoare annotation was computed. [2020-10-14 05:39:05,020 INFO L268 CegarLoopResult]: For program point glob2FINAL(lines 14 25) no Hoare annotation was computed. [2020-10-14 05:39:05,020 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 05:39:05,020 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-14 05:39:05,020 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 05:39:05,020 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 05:39:05,020 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 27 38) the Hoare annotation is: (and (= |old(~tmp~0.base)| ~tmp~0.base) (= ~tmp~0.offset |old(~tmp~0.offset)|) (= |old(#valid)| |#valid|)) [2020-10-14 05:39:05,021 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 27 38) no Hoare annotation was computed. [2020-10-14 05:39:05,021 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 27 38) no Hoare annotation was computed. [2020-10-14 05:39:05,021 INFO L264 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (and (<= ~tmp~0.base main_~bound~0.base) (<= (+ |main_~#pathbuf~0.offset| 4) ~tmp~0.offset) (<= main_~bound~0.offset ~tmp~0.offset) (= ~tmp~0.base |main_~#pathbuf~0.base|) (<= main_~bound~0.base ~tmp~0.base)) [2020-10-14 05:39:05,021 INFO L268 CegarLoopResult]: For program point L35-1(line 35) no Hoare annotation was computed. [2020-10-14 05:39:05,021 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-10-14 05:39:05,022 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-10-14 05:39:05,022 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-10-14 05:39:05,022 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-10-14 05:39:05,022 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-10-14 05:39:05,022 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-10-14 05:39:05,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 05:39:05 BoogieIcfgContainer [2020-10-14 05:39:05,043 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 05:39:05,046 INFO L168 Benchmark]: Toolchain (without parser) took 3015.93 ms. Allocated memory was 148.4 MB in the beginning and 241.2 MB in the end (delta: 92.8 MB). Free memory was 104.5 MB in the beginning and 201.3 MB in the end (delta: -96.8 MB). Peak memory consumption was 99.2 MB. Max. memory is 7.1 GB. [2020-10-14 05:39:05,047 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-14 05:39:05,048 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.77 ms. Allocated memory is still 148.4 MB. Free memory was 104.1 MB in the beginning and 94.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-10-14 05:39:05,050 INFO L168 Benchmark]: Boogie Preprocessor took 133.31 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 94.3 MB in the beginning and 182.4 MB in the end (delta: -88.1 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-10-14 05:39:05,051 INFO L168 Benchmark]: RCFGBuilder took 401.62 ms. Allocated memory is still 205.0 MB. Free memory was 182.4 MB in the beginning and 167.4 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2020-10-14 05:39:05,052 INFO L168 Benchmark]: TraceAbstraction took 2242.45 ms. Allocated memory was 205.0 MB in the beginning and 241.2 MB in the end (delta: 36.2 MB). Free memory was 167.4 MB in the beginning and 201.3 MB in the end (delta: -33.9 MB). Peak memory consumption was 105.5 MB. Max. memory is 7.1 GB. [2020-10-14 05:39:05,056 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 233.77 ms. Allocated memory is still 148.4 MB. Free memory was 104.1 MB in the beginning and 94.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.31 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 94.3 MB in the beginning and 182.4 MB in the end (delta: -88.1 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 401.62 ms. Allocated memory is still 205.0 MB. Free memory was 182.4 MB in the beginning and 167.4 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2242.45 ms. Allocated memory was 205.0 MB in the beginning and 241.2 MB in the end (delta: 36.2 MB). Free memory was 167.4 MB in the beginning and 201.3 MB in the end (delta: -33.9 MB). Peak memory consumption was 105.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((((!(pathlim <= tmp) || !(pathlim <= tmp)) || !(tmp <= pathlim)) || !(tmp == pathbuf)) || !(pathbuf + 4 <= tmp)) || ((pathlim <= tmp && pathlim <= tmp) && tmp <= pathlim) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 57 SDslu, 71 SDs, 0 SdLazy, 157 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 11 PreInvPairs, 15 NumberOfFragments, 125 HoareAnnotationTreeSize, 11 FomulaSimplifications, 113 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 148 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 3080 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 3/4 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 correct! Received shutdown request...