/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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 [2020-10-15 00:12:21,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 00:12:21,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 00:12:21,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 00:12:21,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 00:12:21,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 00:12:21,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 00:12:21,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 00:12:21,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 00:12:21,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 00:12:21,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 00:12:21,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 00:12:21,890 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 00:12:21,891 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 00:12:21,892 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 00:12:21,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 00:12:21,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 00:12:21,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 00:12:21,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 00:12:21,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 00:12:21,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 00:12:21,910 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 00:12:21,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 00:12:21,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 00:12:21,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 00:12:21,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 00:12:21,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 00:12:21,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 00:12:21,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 00:12:21,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 00:12:21,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 00:12:21,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 00:12:21,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 00:12:21,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 00:12:21,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 00:12:21,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 00:12:21,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 00:12:21,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 00:12:21,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 00:12:21,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 00:12:21,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 00:12:21,944 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 [2020-10-15 00:12:21,990 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 00:12:21,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 00:12:21,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 00:12:21,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 00:12:21,993 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 00:12:21,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 00:12:21,993 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 00:12:21,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 00:12:21,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 00:12:21,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 00:12:21,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 00:12:21,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 00:12:21,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 00:12:21,995 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 00:12:21,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 00:12:21,995 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 00:12:21,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 00:12:21,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 00:12:21,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 00:12:21,996 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 00:12:21,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 00:12:21,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 00:12:21,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 00:12:21,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 00:12:21,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 00:12:21,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 00:12:21,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 00:12:21,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 00:12:21,998 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 00:12:21,998 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 00:12:22,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 00:12:22,336 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 00:12:22,340 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 00:12:22,341 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 00:12:22,342 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 00:12:22,343 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2020-10-15 00:12:22,408 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/88bf14f73/85c42d876ba14555b4e583409f48e84c/FLAG6ac65701f [2020-10-15 00:12:22,868 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 00:12:22,869 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2020-10-15 00:12:22,875 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/88bf14f73/85c42d876ba14555b4e583409f48e84c/FLAG6ac65701f [2020-10-15 00:12:23,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/88bf14f73/85c42d876ba14555b4e583409f48e84c [2020-10-15 00:12:23,273 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 00:12:23,275 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 00:12:23,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 00:12:23,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 00:12:23,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 00:12:23,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:12:23" (1/1) ... [2020-10-15 00:12:23,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@750e1b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:23, skipping insertion in model container [2020-10-15 00:12:23,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:12:23" (1/1) ... [2020-10-15 00:12:23,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 00:12:23,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 00:12:23,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 00:12:23,526 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 00:12:23,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 00:12:23,653 INFO L208 MainTranslator]: Completed translation [2020-10-15 00:12:23,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:23 WrapperNode [2020-10-15 00:12:23,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 00:12:23,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 00:12:23,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 00:12:23,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 00:12:23,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:23" (1/1) ... [2020-10-15 00:12:23,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:23" (1/1) ... [2020-10-15 00:12:23,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:23" (1/1) ... [2020-10-15 00:12:23,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:23" (1/1) ... [2020-10-15 00:12:23,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:23" (1/1) ... [2020-10-15 00:12:23,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:23" (1/1) ... [2020-10-15 00:12:23,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:23" (1/1) ... [2020-10-15 00:12:23,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 00:12:23,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 00:12:23,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 00:12:23,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 00:12:23,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:23" (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 [2020-10-15 00:12:23,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 00:12:23,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 00:12:23,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-15 00:12:23,774 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2020-10-15 00:12:23,774 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 00:12:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 00:12:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-15 00:12:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2020-10-15 00:12:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 00:12:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 00:12:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 00:12:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 00:12:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 00:12:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 00:12:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 00:12:24,099 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 00:12:24,099 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 00:12:24,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:12:24 BoogieIcfgContainer [2020-10-15 00:12:24,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 00:12:24,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 00:12:24,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 00:12:24,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 00:12:24,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:12:23" (1/3) ... [2020-10-15 00:12:24,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d53cd11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:12:24, skipping insertion in model container [2020-10-15 00:12:24,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:12:23" (2/3) ... [2020-10-15 00:12:24,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d53cd11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:12:24, skipping insertion in model container [2020-10-15 00:12:24,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:12:24" (3/3) ... [2020-10-15 00:12:24,116 INFO L109 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc_loop.i [2020-10-15 00:12:24,126 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 00:12:24,134 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 00:12:24,148 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 00:12:24,174 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 00:12:24,174 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 00:12:24,175 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 00:12:24,175 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 00:12:24,175 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 00:12:24,175 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 00:12:24,175 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 00:12:24,175 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 00:12:24,200 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-15 00:12:24,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 00:12:24,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:12:24,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:12:24,209 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:12:24,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:12:24,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1626450083, now seen corresponding path program 1 times [2020-10-15 00:12:24,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:12:24,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326317426] [2020-10-15 00:12:24,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:12:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:12:24,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:12:24,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:12:24,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-15 00:12:24,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:12:24,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-10-15 00:12:24,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:12:24,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:12:24,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 00:12:24,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 00:12:24,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 00:12:24,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-15 00:12:24,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:12:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:12:24,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:12:24,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:12:24,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:12:24,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:12:24,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 00:12:24,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:12:24,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:12:24,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:12:24,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:12:24,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:12:24,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 00:12:24,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:12:24,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [326317426] [2020-10-15 00:12:24,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:12:24,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 00:12:24,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116939218] [2020-10-15 00:12:24,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 00:12:24,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:12:24,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 00:12:24,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-15 00:12:24,963 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 8 states. [2020-10-15 00:12:25,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:12:25,342 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2020-10-15 00:12:25,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 00:12:25,344 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-10-15 00:12:25,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:12:25,354 INFO L225 Difference]: With dead ends: 55 [2020-10-15 00:12:25,354 INFO L226 Difference]: Without dead ends: 26 [2020-10-15 00:12:25,372 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 [2020-10-15 00:12:25,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-15 00:12:25,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2020-10-15 00:12:25,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-15 00:12:25,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2020-10-15 00:12:25,435 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 13 [2020-10-15 00:12:25,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:12:25,436 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2020-10-15 00:12:25,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 00:12:25,437 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2020-10-15 00:12:25,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 00:12:25,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:12:25,439 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:12:25,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 00:12:25,440 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:12:25,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:12:25,440 INFO L82 PathProgramCache]: Analyzing trace with hash -519824651, now seen corresponding path program 1 times [2020-10-15 00:12:25,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:12:25,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [143447020] [2020-10-15 00:12:25,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:12:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:12:25,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:12:25,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:12:25,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:12:25,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 00:12:25,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:12:25,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-15 00:12:25,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:12:25,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:12:25,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 00:12:25,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 00:12:25,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 00:12:25,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 00:12:25,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:12:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:12:25,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:12:25,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:12:25,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:12:25,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:12:25,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:12:25,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:12:25,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:12:25,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:12:25,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:12:25,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:12:25,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:12:25,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 00:12:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:12:25,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:12:25,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:12:25,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:12:25,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:12:25,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 00:12:25,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:12:25,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:12:25,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:12:25,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:12:25,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:12:25,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:12:25,886 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-15 00:12:25,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [143447020] [2020-10-15 00:12:25,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:12:25,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-15 00:12:25,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295072463] [2020-10-15 00:12:25,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 00:12:25,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:12:25,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 00:12:25,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-15 00:12:25,891 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 9 states. [2020-10-15 00:12:26,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:12:26,117 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2020-10-15 00:12:26,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 00:12:26,117 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 00:12:26,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:12:26,118 INFO L225 Difference]: With dead ends: 24 [2020-10-15 00:12:26,118 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 00:12:26,120 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 [2020-10-15 00:12:26,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 00:12:26,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 00:12:26,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 00:12:26,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 00:12:26,121 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-15 00:12:26,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:12:26,121 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 00:12:26,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 00:12:26,121 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 00:12:26,122 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 00:12:26,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 00:12:26,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-15 00:12:26,376 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-15 00:12:26,377 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|)) [2020-10-15 00:12:26,377 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-15 00:12:26,377 INFO L271 CegarLoopResult]: At program point glob2ENTRY(lines 14 25) the Hoare annotation is: true [2020-10-15 00:12:26,377 INFO L268 CegarLoopResult]: For program point glob2EXIT(lines 14 25) no Hoare annotation was computed. [2020-10-15 00:12:26,378 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))) [2020-10-15 00:12:26,378 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-10-15 00:12:26,378 INFO L268 CegarLoopResult]: For program point L18-2(lines 18 22) no Hoare annotation was computed. [2020-10-15 00:12:26,378 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))) [2020-10-15 00:12:26,378 INFO L268 CegarLoopResult]: For program point L18-4(lines 18 22) no Hoare annotation was computed. [2020-10-15 00:12:26,379 INFO L268 CegarLoopResult]: For program point glob2FINAL(lines 14 25) no Hoare annotation was computed. [2020-10-15 00:12:26,379 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-15 00:12:26,379 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-15 00:12:26,379 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-15 00:12:26,379 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-15 00:12:26,380 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|)) [2020-10-15 00:12:26,380 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 27 38) no Hoare annotation was computed. [2020-10-15 00:12:26,380 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 27 38) no Hoare annotation was computed. [2020-10-15 00:12:26,380 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)) [2020-10-15 00:12:26,380 INFO L268 CegarLoopResult]: For program point L35-1(line 35) no Hoare annotation was computed. [2020-10-15 00:12:26,381 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-10-15 00:12:26,381 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-10-15 00:12:26,381 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-10-15 00:12:26,381 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-10-15 00:12:26,381 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-10-15 00:12:26,382 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-10-15 00:12:26,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:12:26 BoogieIcfgContainer [2020-10-15 00:12:26,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 00:12:26,411 INFO L168 Benchmark]: Toolchain (without parser) took 3135.37 ms. Allocated memory was 146.8 MB in the beginning and 245.4 MB in the end (delta: 98.6 MB). Free memory was 102.5 MB in the beginning and 218.1 MB in the end (delta: -115.6 MB). Peak memory consumption was 109.0 MB. Max. memory is 7.1 GB. [2020-10-15 00:12:26,412 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-15 00:12:26,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.82 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 102.1 MB in the beginning and 181.5 MB in the end (delta: -79.4 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2020-10-15 00:12:26,414 INFO L168 Benchmark]: Boogie Preprocessor took 40.74 ms. Allocated memory is still 202.9 MB. Free memory was 181.5 MB in the beginning and 179.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-10-15 00:12:26,415 INFO L168 Benchmark]: RCFGBuilder took 407.03 ms. Allocated memory is still 202.9 MB. Free memory was 179.2 MB in the beginning and 164.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2020-10-15 00:12:26,416 INFO L168 Benchmark]: TraceAbstraction took 2301.61 ms. Allocated memory was 202.9 MB in the beginning and 245.4 MB in the end (delta: 42.5 MB). Free memory was 163.9 MB in the beginning and 218.1 MB in the end (delta: -54.2 MB). Peak memory consumption was 114.3 MB. Max. memory is 7.1 GB. [2020-10-15 00:12:26,420 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 376.82 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 102.1 MB in the beginning and 181.5 MB in the end (delta: -79.4 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.74 ms. Allocated memory is still 202.9 MB. Free memory was 181.5 MB in the beginning and 179.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 407.03 ms. Allocated memory is still 202.9 MB. Free memory was 179.2 MB in the beginning and 164.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2301.61 ms. Allocated memory was 202.9 MB in the beginning and 245.4 MB in the end (delta: 42.5 MB). Free memory was 163.9 MB in the beginning and 218.1 MB in the end (delta: -54.2 MB). Peak memory consumption was 114.3 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: 1.9s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.6s, 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, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s 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, 0.9s 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...