/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-benchs/zonotope_2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 10:16:26,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 10:16:26,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 10:16:26,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 10:16:26,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 10:16:26,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 10:16:26,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 10:16:26,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 10:16:26,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 10:16:26,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 10:16:26,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 10:16:26,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 10:16:26,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 10:16:26,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 10:16:26,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 10:16:26,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 10:16:26,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 10:16:26,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 10:16:26,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 10:16:26,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 10:16:26,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 10:16:26,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 10:16:26,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 10:16:26,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 10:16:26,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 10:16:26,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 10:16:26,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 10:16:26,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 10:16:26,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 10:16:26,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 10:16:26,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 10:16:26,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 10:16:26,943 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 10:16:26,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 10:16:26,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 10:16:26,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 10:16:26,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 10:16:26,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 10:16:26,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 10:16:26,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 10:16:26,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 10:16:26,950 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 10:16:26,990 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 10:16:26,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 10:16:26,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 10:16:26,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 10:16:26,993 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 10:16:26,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 10:16:26,993 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 10:16:26,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 10:16:26,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 10:16:26,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 10:16:26,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 10:16:26,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 10:16:26,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 10:16:26,996 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 10:16:26,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 10:16:26,996 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 10:16:26,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 10:16:26,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 10:16:26,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 10:16:26,997 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 10:16:26,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 10:16:26,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:16:26,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 10:16:26,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 10:16:26,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 10:16:26,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 10:16:26,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 10:16:26,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 10:16:26,999 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 10:16:26,999 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 10:16:27,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 10:16:27,317 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 10:16:27,320 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 10:16:27,322 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 10:16:27,322 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 10:16:27,323 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/zonotope_2.c [2020-10-13 10:16:27,377 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b1c10c256/5dff1cde97014d83aca85171be107dde/FLAG55460b7d5 [2020-10-13 10:16:27,786 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 10:16:27,787 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-benchs/zonotope_2.c [2020-10-13 10:16:27,793 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b1c10c256/5dff1cde97014d83aca85171be107dde/FLAG55460b7d5 [2020-10-13 10:16:28,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b1c10c256/5dff1cde97014d83aca85171be107dde [2020-10-13 10:16:28,198 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 10:16:28,200 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 10:16:28,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 10:16:28,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 10:16:28,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 10:16:28,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:16:28" (1/1) ... [2020-10-13 10:16:28,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59c286c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:16:28, skipping insertion in model container [2020-10-13 10:16:28,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:16:28" (1/1) ... [2020-10-13 10:16:28,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 10:16:28,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 10:16:28,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:16:28,411 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 10:16:28,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:16:28,443 INFO L208 MainTranslator]: Completed translation [2020-10-13 10:16:28,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:16:28 WrapperNode [2020-10-13 10:16:28,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 10:16:28,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 10:16:28,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 10:16:28,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 10:16:28,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:16:28" (1/1) ... [2020-10-13 10:16:28,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:16:28" (1/1) ... [2020-10-13 10:16:28,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:16:28" (1/1) ... [2020-10-13 10:16:28,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:16:28" (1/1) ... [2020-10-13 10:16:28,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:16:28" (1/1) ... [2020-10-13 10:16:28,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:16:28" (1/1) ... [2020-10-13 10:16:28,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:16:28" (1/1) ... [2020-10-13 10:16:28,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 10:16:28,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 10:16:28,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 10:16:28,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 10:16:28,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:16:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:16:28,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 10:16:28,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 10:16:28,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-13 10:16:28,611 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 10:16:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 10:16:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-13 10:16:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 10:16:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 10:16:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 10:16:28,783 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 10:16:28,783 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 10:16:28,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:16:28 BoogieIcfgContainer [2020-10-13 10:16:28,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 10:16:28,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 10:16:28,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 10:16:28,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 10:16:28,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:16:28" (1/3) ... [2020-10-13 10:16:28,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f82c391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:16:28, skipping insertion in model container [2020-10-13 10:16:28,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:16:28" (2/3) ... [2020-10-13 10:16:28,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f82c391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:16:28, skipping insertion in model container [2020-10-13 10:16:28,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:16:28" (3/3) ... [2020-10-13 10:16:28,794 INFO L109 eAbstractionObserver]: Analyzing ICFG zonotope_2.c [2020-10-13 10:16:28,804 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 10:16:28,811 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 10:16:28,823 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 10:16:28,846 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 10:16:28,846 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 10:16:28,846 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 10:16:28,847 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 10:16:28,847 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 10:16:28,847 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 10:16:28,847 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 10:16:28,847 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 10:16:28,862 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-10-13 10:16:28,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-13 10:16:28,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:16:28,868 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:16:28,868 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:16:28,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:16:28,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1296848067, now seen corresponding path program 1 times [2020-10-13 10:16:28,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:16:28,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1935039687] [2020-10-13 10:16:28,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:16:28,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:16:28,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:16:29,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:16:29,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 10:16:29,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:16:29,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 10:16:29,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:16:29,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:16:29,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:16:29,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:16:29,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 10:16:29,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:16:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:16:29,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:16:29,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:16:29,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 10:16:29,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:16:29,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 10:16:29,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:16:29,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:16:29,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:16:29,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:16:29,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:16:29,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:16:29,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1935039687] [2020-10-13 10:16:29,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:16:29,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-13 10:16:29,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936702676] [2020-10-13 10:16:29,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-13 10:16:29,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:16:29,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-13 10:16:29,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-13 10:16:29,118 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-10-13 10:16:29,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:16:29,154 INFO L93 Difference]: Finished difference Result 37 states and 48 transitions. [2020-10-13 10:16:29,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-13 10:16:29,156 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-13 10:16:29,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:16:29,169 INFO L225 Difference]: With dead ends: 37 [2020-10-13 10:16:29,170 INFO L226 Difference]: Without dead ends: 16 [2020-10-13 10:16:29,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-13 10:16:29,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-13 10:16:29,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-13 10:16:29,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-13 10:16:29,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2020-10-13 10:16:29,221 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 10 [2020-10-13 10:16:29,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:16:29,221 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2020-10-13 10:16:29,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-13 10:16:29,222 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-10-13 10:16:29,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-13 10:16:29,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:16:29,225 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:16:29,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 10:16:29,226 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:16:29,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:16:29,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1304236235, now seen corresponding path program 1 times [2020-10-13 10:16:29,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:16:29,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [687720449] [2020-10-13 10:16:29,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:16:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:16:29,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:16:29,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:16:29,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 10:16:29,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:16:29,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-13 10:16:29,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:16:29,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:16:29,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 10:16:29,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 10:16:29,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:16:29,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:16:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:16:29,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:16:29,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:16:29,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 10:16:29,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:16:29,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:16:29,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:16:29,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:16:29,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:16:29,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:16:29,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 10:16:29,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:16:29,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [687720449] [2020-10-13 10:16:29,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:16:29,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 10:16:29,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732751950] [2020-10-13 10:16:29,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 10:16:29,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:16:29,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 10:16:29,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 10:16:29,424 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 3 states. [2020-10-13 10:16:29,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:16:29,473 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2020-10-13 10:16:29,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 10:16:29,474 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-13 10:16:29,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:16:29,475 INFO L225 Difference]: With dead ends: 27 [2020-10-13 10:16:29,475 INFO L226 Difference]: Without dead ends: 20 [2020-10-13 10:16:29,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 10:16:29,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-13 10:16:29,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2020-10-13 10:16:29,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-13 10:16:29,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2020-10-13 10:16:29,497 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 10 [2020-10-13 10:16:29,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:16:29,510 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2020-10-13 10:16:29,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 10:16:29,511 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-10-13 10:16:29,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-13 10:16:29,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:16:29,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:16:29,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 10:16:29,515 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:16:29,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:16:29,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1302508357, now seen corresponding path program 1 times [2020-10-13 10:16:29,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:16:29,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824210414] [2020-10-13 10:16:29,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:16:29,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 10:16:29,553 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 10:16:29,554 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 10:16:29,561 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 10:16:29,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:16:29 BoogieIcfgContainer [2020-10-13 10:16:29,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 10:16:29,589 INFO L168 Benchmark]: Toolchain (without parser) took 1389.32 ms. Allocated memory was 142.1 MB in the beginning and 204.5 MB in the end (delta: 62.4 MB). Free memory was 105.2 MB in the beginning and 135.1 MB in the end (delta: -29.8 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. [2020-10-13 10:16:29,591 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 10:16:29,591 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.14 ms. Allocated memory is still 142.1 MB. Free memory was 105.0 MB in the beginning and 95.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-10-13 10:16:29,593 INFO L168 Benchmark]: Boogie Preprocessor took 112.53 ms. Allocated memory was 142.1 MB in the beginning and 204.5 MB in the end (delta: 62.4 MB). Free memory was 95.2 MB in the beginning and 182.6 MB in the end (delta: -87.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-10-13 10:16:29,594 INFO L168 Benchmark]: RCFGBuilder took 229.33 ms. Allocated memory is still 204.5 MB. Free memory was 182.6 MB in the beginning and 170.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2020-10-13 10:16:29,594 INFO L168 Benchmark]: TraceAbstraction took 799.60 ms. Allocated memory is still 204.5 MB. Free memory was 170.0 MB in the beginning and 135.1 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. [2020-10-13 10:16:29,599 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 243.14 ms. Allocated memory is still 142.1 MB. Free memory was 105.0 MB in the beginning and 95.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.53 ms. Allocated memory was 142.1 MB in the beginning and 204.5 MB in the end (delta: 62.4 MB). Free memory was 95.2 MB in the beginning and 182.6 MB in the end (delta: -87.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 229.33 ms. Allocated memory is still 204.5 MB. Free memory was 182.6 MB in the beginning and 170.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 799.60 ms. Allocated memory is still 204.5 MB. Free memory was 170.0 MB in the beginning and 135.1 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 23, overapproximation of someBinaryArithmeticFLOAToperation at line 20. Possible FailurePath: [L12] float x = 12.f; [L13] float x1 = 12.f; [L14] float y = 16.f; [L15] float y1 = 16.f; [L16] int i; [L17] i = 0 [L17] COND TRUE i < 100000 [L18] x = x1 [L19] y = y1 [L20] x1 = 3.f * x / 4.f + y / 4.f [L21] y1 = x / 4.f + 3.f * y / 4.f [L23] CALL __VERIFIER_assert(x1 >= 0.f && x1 <= 100.f) [L8] COND TRUE !(cond) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 41 SDtfs, 1 SDslu, 14 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...