/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/sum03-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:33:51,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:33:51,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:33:51,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:33:51,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:33:51,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:33:51,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:33:51,948 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:33:51,950 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:33:51,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:33:51,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:33:51,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:33:51,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:33:51,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:33:51,961 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:33:51,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:33:51,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:33:51,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:33:51,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:33:51,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:33:51,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:33:51,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:33:51,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:33:51,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:33:51,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:33:51,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:33:51,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:33:51,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:33:51,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:33:51,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:33:51,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:33:51,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:33:51,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:33:52,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:33:52,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:33:52,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:33:52,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:33:52,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:33:52,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:33:52,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:33:52,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:33:52,006 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:33:52,068 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:33:52,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:33:52,071 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:33:52,071 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:33:52,071 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:33:52,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:33:52,072 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:33:52,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:33:52,073 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:33:52,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:33:52,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:33:52,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:33:52,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:33:52,074 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:33:52,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:33:52,075 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:33:52,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:33:52,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:33:52,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:33:52,076 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:33:52,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:33:52,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:33:52,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:33:52,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:33:52,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:33:52,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:33:52,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:33:52,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:33:52,078 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:33:52,078 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:33:52,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:33:52,579 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:33:52,583 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:33:52,585 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:33:52,586 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:33:52,587 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum03-2.i [2020-09-24 19:33:52,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e642bfd9b/2b6497eb0576443994b12590d29f8b79/FLAG8f408d7af [2020-09-24 19:33:53,323 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:33:53,324 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/sum03-2.i [2020-09-24 19:33:53,334 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e642bfd9b/2b6497eb0576443994b12590d29f8b79/FLAG8f408d7af [2020-09-24 19:33:53,668 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e642bfd9b/2b6497eb0576443994b12590d29f8b79 [2020-09-24 19:33:53,687 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:33:53,695 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:33:53,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:33:53,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:33:53,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:33:53,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:33:53" (1/1) ... [2020-09-24 19:33:53,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c5500f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:53, skipping insertion in model container [2020-09-24 19:33:53,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:33:53" (1/1) ... [2020-09-24 19:33:53,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:33:53,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:33:53,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:33:53,974 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:33:53,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:33:54,014 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:33:54,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:54 WrapperNode [2020-09-24 19:33:54,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:33:54,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:33:54,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:33:54,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:33:54,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:54" (1/1) ... [2020-09-24 19:33:54,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:54" (1/1) ... [2020-09-24 19:33:54,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:54" (1/1) ... [2020-09-24 19:33:54,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:54" (1/1) ... [2020-09-24 19:33:54,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:54" (1/1) ... [2020-09-24 19:33:54,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:54" (1/1) ... [2020-09-24 19:33:54,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:54" (1/1) ... [2020-09-24 19:33:54,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:33:54,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:33:54,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:33:54,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:33:54,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:54" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:33:54,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:33:54,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:33:54,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 19:33:54,223 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:33:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:33:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 19:33:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-24 19:33:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:33:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:33:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:33:54,427 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:33:54,428 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 19:33:54,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:33:54 BoogieIcfgContainer [2020-09-24 19:33:54,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:33:54,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:33:54,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:33:54,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:33:54,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:33:53" (1/3) ... [2020-09-24 19:33:54,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63be7dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:33:54, skipping insertion in model container [2020-09-24 19:33:54,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:54" (2/3) ... [2020-09-24 19:33:54,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63be7dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:33:54, skipping insertion in model container [2020-09-24 19:33:54,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:33:54" (3/3) ... [2020-09-24 19:33:54,447 INFO L109 eAbstractionObserver]: Analyzing ICFG sum03-2.i [2020-09-24 19:33:54,460 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:33:54,470 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:33:54,492 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:33:54,526 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:33:54,526 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:33:54,526 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:33:54,526 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:33:54,526 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:33:54,527 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:33:54,527 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:33:54,527 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:33:54,552 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-09-24 19:33:54,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-24 19:33:54,560 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:33:54,561 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:33:54,561 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:33:54,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:33:54,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1015763017, now seen corresponding path program 1 times [2020-09-24 19:33:54,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:33:54,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839684903] [2020-09-24 19:33:54,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:33:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:54,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:54,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:54,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 19:33:54,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:54,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-24 19:33:54,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:54,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:33:54,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:33:54,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 19:33:54,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:33:55,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:33:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:55,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:55,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:55,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:33:55,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:55,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:33:55,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:55,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:55,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:55,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:55,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:33:55,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:33:55,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839684903] [2020-09-24 19:33:55,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:33:55,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:33:55,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027537999] [2020-09-24 19:33:55,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:33:55,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:33:55,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:33:55,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:33:55,566 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 9 states. [2020-09-24 19:33:55,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:33:55,771 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2020-09-24 19:33:55,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 19:33:55,774 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-09-24 19:33:55,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:33:55,786 INFO L225 Difference]: With dead ends: 50 [2020-09-24 19:33:55,786 INFO L226 Difference]: Without dead ends: 34 [2020-09-24 19:33:55,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-09-24 19:33:55,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-24 19:33:55,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-09-24 19:33:55,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-24 19:33:55,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2020-09-24 19:33:55,857 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 19 [2020-09-24 19:33:55,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:33:55,858 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2020-09-24 19:33:55,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:33:55,858 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2020-09-24 19:33:55,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-24 19:33:55,859 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:33:55,859 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:33:55,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:33:55,860 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:33:55,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:33:55,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1391461948, now seen corresponding path program 1 times [2020-09-24 19:33:55,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:33:55,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1706418623] [2020-09-24 19:33:55,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:33:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:55,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:56,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:56,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:56,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 19:33:56,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:33:56,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-24 19:33:56,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:56,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 19:33:56,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:33:56,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 19:33:56,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:33:57,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:33:57,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:57,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:57,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:57,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:33:57,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:57,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:33:57,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:57,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:57,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:57,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:57,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:33:57,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-24 19:33:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:57,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:57,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:57,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:33:57,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:57,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 19:33:57,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:57,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:33:57,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:57,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:33:57,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:33:57,249 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:33:57,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1706418623] [2020-09-24 19:33:57,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:33:57,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 19:33:57,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722246301] [2020-09-24 19:33:57,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:33:57,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:33:57,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:33:57,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:33:57,256 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 11 states. [2020-09-24 19:33:57,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:33:57,688 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2020-09-24 19:33:57,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 19:33:57,689 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-09-24 19:33:57,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:33:57,690 INFO L225 Difference]: With dead ends: 34 [2020-09-24 19:33:57,690 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 19:33:57,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2020-09-24 19:33:57,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 19:33:57,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 19:33:57,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 19:33:57,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 19:33:57,693 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2020-09-24 19:33:57,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:33:57,694 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 19:33:57,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:33:57,694 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 19:33:57,694 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 19:33:57,695 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:33:57,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 19:33:57,765 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 19:33:57,765 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 19:33:57,765 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 19:33:57,766 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 19:33:57,766 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 19:33:57,766 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 19:33:57,766 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 9 18) the Hoare annotation is: true [2020-09-24 19:33:57,767 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 9 18) no Hoare annotation was computed. [2020-09-24 19:33:57,767 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (let ((.cse1 (+ main_~sn~0 (* 4294967296 (div (* main_~x~0 2) 4294967296)))) (.cse0 (+ (* 2 main_~x~0) (* 4294967296 (div main_~sn~0 4294967296))))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-09-24 19:33:57,767 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 19:33:57,768 INFO L264 CegarLoopResult]: At program point L16-1(lines 13 17) the Hoare annotation is: (let ((.cse1 (+ main_~sn~0 (* 4294967296 (div (* main_~x~0 2) 4294967296)))) (.cse0 (+ (* 2 main_~x~0) (* 4294967296 (div main_~sn~0 4294967296))))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-09-24 19:33:57,768 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-24 19:33:57,768 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-24 19:33:57,768 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-24 19:33:57,768 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-24 19:33:57,769 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-24 19:33:57,769 INFO L268 CegarLoopResult]: For program point L13-2(lines 9 18) no Hoare annotation was computed. [2020-09-24 19:33:57,769 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-09-24 19:33:57,769 INFO L268 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-09-24 19:33:57,770 INFO L268 CegarLoopResult]: For program point L11-3(line 11) no Hoare annotation was computed. [2020-09-24 19:33:57,770 INFO L268 CegarLoopResult]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2020-09-24 19:33:57,770 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2020-09-24 19:33:57,770 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2020-09-24 19:33:57,771 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-24 19:33:57,771 INFO L268 CegarLoopResult]: For program point L3(lines 3 5) no Hoare annotation was computed. [2020-09-24 19:33:57,771 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-09-24 19:33:57,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:33:57 BoogieIcfgContainer [2020-09-24 19:33:57,796 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:33:57,800 INFO L168 Benchmark]: Toolchain (without parser) took 4109.55 ms. Allocated memory was 138.9 MB in the beginning and 232.3 MB in the end (delta: 93.3 MB). Free memory was 102.6 MB in the beginning and 97.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 98.6 MB. Max. memory is 7.1 GB. [2020-09-24 19:33:57,801 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 19:33:57,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.37 ms. Allocated memory is still 138.9 MB. Free memory was 102.0 MB in the beginning and 92.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-09-24 19:33:57,803 INFO L168 Benchmark]: Boogie Preprocessor took 123.42 ms. Allocated memory was 138.9 MB in the beginning and 200.3 MB in the end (delta: 61.3 MB). Free memory was 92.7 MB in the beginning and 180.3 MB in the end (delta: -87.6 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-09-24 19:33:57,804 INFO L168 Benchmark]: RCFGBuilder took 291.37 ms. Allocated memory is still 200.3 MB. Free memory was 179.3 MB in the beginning and 167.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2020-09-24 19:33:57,806 INFO L168 Benchmark]: TraceAbstraction took 3362.46 ms. Allocated memory was 200.3 MB in the beginning and 232.3 MB in the end (delta: 32.0 MB). Free memory was 167.3 MB in the beginning and 97.3 MB in the end (delta: 70.0 MB). Peak memory consumption was 102.0 MB. Max. memory is 7.1 GB. [2020-09-24 19:33:57,811 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 316.37 ms. Allocated memory is still 138.9 MB. Free memory was 102.0 MB in the beginning and 92.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.42 ms. Allocated memory was 138.9 MB in the beginning and 200.3 MB in the end (delta: 61.3 MB). Free memory was 92.7 MB in the beginning and 180.3 MB in the end (delta: -87.6 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 291.37 ms. Allocated memory is still 200.3 MB. Free memory was 179.3 MB in the beginning and 167.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3362.46 ms. Allocated memory was 200.3 MB in the beginning and 232.3 MB in the end (delta: 32.0 MB). Free memory was 167.3 MB in the beginning and 97.3 MB in the end (delta: 70.0 MB). Peak memory consumption was 102.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 13]: Loop Invariant Derived loop invariant: 2 * x + 4294967296 * (sn / 4294967296) <= sn + 4294967296 * (x * 2 / 4294967296) && sn + 4294967296 * (x * 2 / 4294967296) <= 2 * x + 4294967296 * (sn / 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 20 SDslu, 203 SDs, 0 SdLazy, 117 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=1, 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, 7 LocationsWithAnnotation, 9 PreInvPairs, 14 NumberOfFragments, 83 HoareAnnotationTreeSize, 9 FomulaSimplifications, 120 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 11932 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1/8 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...