/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/net_reset.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 02:55:03,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 02:55:03,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 02:55:03,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 02:55:03,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 02:55:03,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 02:55:03,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 02:55:03,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 02:55:03,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 02:55:03,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 02:55:03,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 02:55:03,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 02:55:03,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 02:55:03,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 02:55:03,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 02:55:03,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 02:55:03,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 02:55:03,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 02:55:03,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 02:55:03,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 02:55:03,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 02:55:03,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 02:55:03,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 02:55:03,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 02:55:03,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 02:55:03,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 02:55:03,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 02:55:03,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 02:55:03,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 02:55:03,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 02:55:03,889 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 02:55:03,890 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 02:55:03,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 02:55:03,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 02:55:03,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 02:55:03,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 02:55:03,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 02:55:03,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 02:55:03,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 02:55:03,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 02:55:03,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 02:55:03,896 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 [2020-08-19 02:55:03,918 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 02:55:03,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 02:55:03,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 02:55:03,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 02:55:03,920 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 02:55:03,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 02:55:03,921 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 02:55:03,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 02:55:03,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 02:55:03,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 02:55:03,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 02:55:03,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 02:55:03,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 02:55:03,922 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 02:55:03,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 02:55:03,922 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 02:55:03,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 02:55:03,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 02:55:03,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 02:55:03,923 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 02:55:03,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 02:55:03,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 02:55:03,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 02:55:03,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 02:55:03,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 02:55:03,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 02:55:03,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 02:55:03,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 02:55:03,925 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 02:55:03,925 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0; [2020-08-19 02:55:04,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 02:55:04,233 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 02:55:04,236 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 02:55:04,238 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 02:55:04,238 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 02:55:04,239 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/net_reset.c [2020-08-19 02:55:04,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e43774be/b5237251a0754f4ea6782f5630ee4f29/FLAG564c50879 [2020-08-19 02:55:04,801 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 02:55:04,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/net_reset.c [2020-08-19 02:55:04,811 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e43774be/b5237251a0754f4ea6782f5630ee4f29/FLAG564c50879 [2020-08-19 02:55:05,148 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e43774be/b5237251a0754f4ea6782f5630ee4f29 [2020-08-19 02:55:05,160 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 02:55:05,161 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 02:55:05,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 02:55:05,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 02:55:05,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 02:55:05,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 02:55:05" (1/1) ... [2020-08-19 02:55:05,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16e9c41e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:55:05, skipping insertion in model container [2020-08-19 02:55:05,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 02:55:05" (1/1) ... [2020-08-19 02:55:05,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 02:55:05,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 02:55:05,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 02:55:06,605 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 02:55:06,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 02:55:06,683 INFO L208 MainTranslator]: Completed translation [2020-08-19 02:55:06,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:55:06 WrapperNode [2020-08-19 02:55:06,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 02:55:06,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 02:55:06,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 02:55:06,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 02:55:06,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:55:06" (1/1) ... [2020-08-19 02:55:06,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:55:06" (1/1) ... [2020-08-19 02:55:06,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:55:06" (1/1) ... [2020-08-19 02:55:06,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:55:06" (1/1) ... [2020-08-19 02:55:06,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:55:06" (1/1) ... [2020-08-19 02:55:06,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:55:06" (1/1) ... [2020-08-19 02:55:06,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:55:06" (1/1) ... [2020-08-19 02:55:06,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 02:55:06,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 02:55:06,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 02:55:06,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 02:55:06,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:55:06" (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 [2020-08-19 02:55:06,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 02:55:06,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 02:55:06,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-19 02:55:06,821 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reset [2020-08-19 02:55:06,821 INFO L138 BoogieDeclarations]: Found implementation of procedure net_send_batch [2020-08-19 02:55:06,822 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reopen [2020-08-19 02:55:06,822 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 02:55:06,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 02:55:06,822 INFO L130 BoogieDeclarations]: Found specification of procedure net_reset [2020-08-19 02:55:06,822 INFO L130 BoogieDeclarations]: Found specification of procedure net_reopen [2020-08-19 02:55:06,823 INFO L130 BoogieDeclarations]: Found specification of procedure net_send_batch [2020-08-19 02:55:06,823 INFO L130 BoogieDeclarations]: Found specification of procedure addrcmp [2020-08-19 02:55:06,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-19 02:55:06,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 02:55:06,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 02:55:06,823 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 02:55:06,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 02:55:06,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 02:55:06,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 02:55:06,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 02:55:06,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 02:55:07,231 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 02:55:07,231 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-19 02:55:07,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 02:55:07 BoogieIcfgContainer [2020-08-19 02:55:07,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 02:55:07,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 02:55:07,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 02:55:07,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 02:55:07,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 02:55:05" (1/3) ... [2020-08-19 02:55:07,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c549203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 02:55:07, skipping insertion in model container [2020-08-19 02:55:07,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:55:06" (2/3) ... [2020-08-19 02:55:07,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c549203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 02:55:07, skipping insertion in model container [2020-08-19 02:55:07,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 02:55:07" (3/3) ... [2020-08-19 02:55:07,243 INFO L109 eAbstractionObserver]: Analyzing ICFG net_reset.c [2020-08-19 02:55:07,254 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 02:55:07,263 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 02:55:07,277 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 02:55:07,302 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 02:55:07,302 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 02:55:07,302 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 02:55:07,302 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 02:55:07,303 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 02:55:07,303 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 02:55:07,303 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 02:55:07,303 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 02:55:07,322 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-08-19 02:55:07,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-19 02:55:07,328 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:55:07,329 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 02:55:07,329 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:55:07,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:55:07,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1559425920, now seen corresponding path program 1 times [2020-08-19 02:55:07,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:55:07,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785903591] [2020-08-19 02:55:07,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:55:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:55:07,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:55:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:55:07,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 02:55:07,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:55:07,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 02:55:07,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785903591] [2020-08-19 02:55:07,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:55:07,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 02:55:07,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633926337] [2020-08-19 02:55:07,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 02:55:07,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:55:07,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 02:55:07,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 02:55:07,807 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 6 states. [2020-08-19 02:55:08,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:55:08,078 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2020-08-19 02:55:08,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 02:55:08,080 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-08-19 02:55:08,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:55:08,089 INFO L225 Difference]: With dead ends: 52 [2020-08-19 02:55:08,089 INFO L226 Difference]: Without dead ends: 0 [2020-08-19 02:55:08,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-08-19 02:55:08,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-19 02:55:08,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-19 02:55:08,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-19 02:55:08,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-19 02:55:08,124 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-08-19 02:55:08,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:55:08,124 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-19 02:55:08,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 02:55:08,124 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-19 02:55:08,125 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-19 02:55:08,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 02:55:08,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-19 02:55:08,378 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 13 [2020-08-19 02:55:08,630 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-19 02:55:08,631 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#unspec_addr~0.base| |old(~#unspec_addr~0.base)|) (= |old(#length)| |#length|) (= ~batch_at~0 |old(~batch_at~0)|) (= |#memory_int| |old(#memory_int)|) (= ~fstTTL~0 |old(~fstTTL~0)|) (= |old(#valid)| |#valid|) (= ~__tmpTR__int_1~0 |old(~__tmpTR__int_1~0)|) (= |~#unspec_addr~0.offset| |old(~#unspec_addr~0.offset)|) (= |#t~string1.base| |old(#t~string1.base)|) (= |~#host~0.base| |old(~#host~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#host~0.offset| |old(~#host~0.offset)|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2020-08-19 02:55:08,631 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-19 02:55:08,631 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-19 02:55:08,631 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (<= (+ ~batch_at~0 1) ~fstTTL~0) [2020-08-19 02:55:08,632 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-19 02:55:08,632 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-19 02:55:08,632 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 231 235) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0) (= |old(~batch_at~0)| ~batch_at~0))) [2020-08-19 02:55:08,632 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 231 235) no Hoare annotation was computed. [2020-08-19 02:55:08,632 INFO L264 CegarLoopResult]: At program point L233(line 233) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (= |old(~batch_at~0)| ~batch_at~0)) [2020-08-19 02:55:08,633 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 231 235) no Hoare annotation was computed. [2020-08-19 02:55:08,633 INFO L268 CegarLoopResult]: For program point L233-1(line 233) no Hoare annotation was computed. [2020-08-19 02:55:08,633 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-08-19 02:55:08,633 INFO L268 CegarLoopResult]: For program point L192(lines 192 194) no Hoare annotation was computed. [2020-08-19 02:55:08,634 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 191 196) the Hoare annotation is: true [2020-08-19 02:55:08,634 INFO L268 CegarLoopResult]: For program point L192-2(lines 191 196) no Hoare annotation was computed. [2020-08-19 02:55:08,634 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 191 196) no Hoare annotation was computed. [2020-08-19 02:55:08,634 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2020-08-19 02:55:08,634 INFO L268 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-08-19 02:55:08,635 INFO L268 CegarLoopResult]: For program point net_reopenEXIT(lines 214 229) no Hoare annotation was computed. [2020-08-19 02:55:08,635 INFO L268 CegarLoopResult]: For program point L221(line 221) no Hoare annotation was computed. [2020-08-19 02:55:08,635 INFO L264 CegarLoopResult]: At program point net_reopenENTRY(lines 214 229) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0) (= |old(~batch_at~0)| ~batch_at~0))) [2020-08-19 02:55:08,635 INFO L268 CegarLoopResult]: For program point net_reopenFINAL(lines 214 229) no Hoare annotation was computed. [2020-08-19 02:55:08,635 INFO L268 CegarLoopResult]: For program point L218(line 218) no Hoare annotation was computed. [2020-08-19 02:55:08,636 INFO L264 CegarLoopResult]: At program point L216(lines 216 226) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0) (= |old(~batch_at~0)| ~batch_at~0))) [2020-08-19 02:55:08,636 INFO L268 CegarLoopResult]: For program point L228(line 228) no Hoare annotation was computed. [2020-08-19 02:55:08,636 INFO L264 CegarLoopResult]: At program point L227(line 227) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0) (= |old(~batch_at~0)| ~batch_at~0))) [2020-08-19 02:55:08,637 INFO L264 CegarLoopResult]: At program point L227-1(line 227) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2020-08-19 02:55:08,637 INFO L264 CegarLoopResult]: At program point net_send_batchENTRY(lines 203 213) the Hoare annotation is: (or (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0)) [2020-08-19 02:55:08,637 INFO L268 CegarLoopResult]: For program point net_send_batchEXIT(lines 203 213) no Hoare annotation was computed. [2020-08-19 02:55:08,638 INFO L268 CegarLoopResult]: For program point net_send_batchFINAL(lines 203 213) no Hoare annotation was computed. [2020-08-19 02:55:08,638 INFO L264 CegarLoopResult]: At program point L208(line 208) the Hoare annotation is: (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2020-08-19 02:55:08,639 INFO L268 CegarLoopResult]: For program point L208-1(line 208) no Hoare annotation was computed. [2020-08-19 02:55:08,639 INFO L268 CegarLoopResult]: For program point L208-2(lines 208 209) no Hoare annotation was computed. [2020-08-19 02:55:08,640 INFO L268 CegarLoopResult]: For program point L206-2(lines 206 211) no Hoare annotation was computed. [2020-08-19 02:55:08,640 INFO L264 CegarLoopResult]: At program point L206-3(lines 206 211) the Hoare annotation is: (or (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) (and (<= ~batch_at~0 net_send_batch_~i~0) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0))) [2020-08-19 02:55:08,640 INFO L268 CegarLoopResult]: For program point L206-4(lines 206 211) no Hoare annotation was computed. [2020-08-19 02:55:08,641 INFO L264 CegarLoopResult]: At program point net_resetENTRY(lines 198 202) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (= |old(~batch_at~0)| ~batch_at~0)) [2020-08-19 02:55:08,641 INFO L268 CegarLoopResult]: For program point net_resetEXIT(lines 198 202) no Hoare annotation was computed. [2020-08-19 02:55:08,642 INFO L268 CegarLoopResult]: For program point net_resetFINAL(lines 198 202) no Hoare annotation was computed. [2020-08-19 02:55:08,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 02:55:08 BoogieIcfgContainer [2020-08-19 02:55:08,671 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 02:55:08,675 INFO L168 Benchmark]: Toolchain (without parser) took 3511.60 ms. Allocated memory was 139.5 MB in the beginning and 273.7 MB in the end (delta: 134.2 MB). Free memory was 102.1 MB in the beginning and 120.2 MB in the end (delta: -18.1 MB). Peak memory consumption was 193.3 MB. Max. memory is 7.1 GB. [2020-08-19 02:55:08,676 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-19 02:55:08,677 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1517.90 ms. Allocated memory was 139.5 MB in the beginning and 255.9 MB in the end (delta: 116.4 MB). Free memory was 101.9 MB in the beginning and 144.0 MB in the end (delta: -42.1 MB). Peak memory consumption was 181.5 MB. Max. memory is 7.1 GB. [2020-08-19 02:55:08,678 INFO L168 Benchmark]: Boogie Preprocessor took 49.00 ms. Allocated memory is still 255.9 MB. Free memory was 144.0 MB in the beginning and 142.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-08-19 02:55:08,679 INFO L168 Benchmark]: RCFGBuilder took 501.62 ms. Allocated memory is still 255.9 MB. Free memory was 140.4 MB in the beginning and 117.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2020-08-19 02:55:08,681 INFO L168 Benchmark]: TraceAbstraction took 1434.67 ms. Allocated memory was 255.9 MB in the beginning and 273.7 MB in the end (delta: 17.8 MB). Free memory was 117.3 MB in the beginning and 120.2 MB in the end (delta: -3.0 MB). Peak memory consumption was 92.0 MB. Max. memory is 7.1 GB. [2020-08-19 02:55:08,690 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1517.90 ms. Allocated memory was 139.5 MB in the beginning and 255.9 MB in the end (delta: 116.4 MB). Free memory was 101.9 MB in the beginning and 144.0 MB in the end (delta: -42.1 MB). Peak memory consumption was 181.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.00 ms. Allocated memory is still 255.9 MB. Free memory was 144.0 MB in the beginning and 142.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 501.62 ms. Allocated memory is still 255.9 MB. Free memory was 140.4 MB in the beginning and 117.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1434.67 ms. Allocated memory was 255.9 MB in the beginning and 273.7 MB in the end (delta: 17.8 MB). Free memory was 117.3 MB in the beginning and 120.2 MB in the end (delta: -3.0 MB). Peak memory consumption was 92.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 193]: 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: 206]: Loop Invariant Derived loop invariant: !(batch_at + 1 <= fstTTL) || (batch_at <= i && \old(__tmpTR__int_1) == __tmpTR__int_1) - InvariantResult [Line: 216]: Loop Invariant Derived loop invariant: !(\old(batch_at) + 1 <= fstTTL) || (\old(__tmpTR__int_1) == __tmpTR__int_1 && \old(batch_at) == batch_at) - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 37 SDslu, 18 SDs, 0 SdLazy, 49 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 14 PreInvPairs, 15 NumberOfFragments, 174 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 298 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 1640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...