/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:12:55,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:12:55,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:12:55,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:12:55,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:12:55,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:12:55,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:12:55,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:12:55,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:12:55,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:12:55,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:12:55,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:12:55,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:12:55,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:12:55,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:12:55,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:12:55,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:12:55,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:12:55,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:12:55,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:12:55,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:12:55,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:12:55,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:12:55,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:12:55,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:12:55,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:12:55,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:12:55,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:12:55,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:12:55,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:12:55,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:12:55,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:12:55,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:12:55,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:12:55,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:12:55,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:12:55,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:12:55,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:12:55,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:12:55,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:12:55,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:12:55,470 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 [2020-09-25 12:12:55,517 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:12:55,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:12:55,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:12:55,520 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:12:55,520 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:12:55,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:12:55,521 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:12:55,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:12:55,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:12:55,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:12:55,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:12:55,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:12:55,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:12:55,524 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:12:55,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:12:55,524 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:12:55,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:12:55,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:12:55,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:12:55,525 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:12:55,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:12:55,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:12:55,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:12:55,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:12:55,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:12:55,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:12:55,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:12:55,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:12:55,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:12:55,527 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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:12:56,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:12:56,023 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:12:56,027 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:12:56,029 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:12:56,030 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:12:56,031 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-09-25 12:12:56,113 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2cff54096/d5d5bba138634ca0a5044b925f1f95c3/FLAG35bac1474 [2020-09-25 12:12:56,631 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:12:56,632 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-09-25 12:12:56,642 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2cff54096/d5d5bba138634ca0a5044b925f1f95c3/FLAG35bac1474 [2020-09-25 12:12:56,954 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2cff54096/d5d5bba138634ca0a5044b925f1f95c3 [2020-09-25 12:12:56,968 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:12:56,972 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:12:56,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:12:56,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:12:56,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:12:56,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:12:56" (1/1) ... [2020-09-25 12:12:56,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10ac6c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:12:56, skipping insertion in model container [2020-09-25 12:12:56,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:12:56" (1/1) ... [2020-09-25 12:12:56,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:12:57,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:12:57,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:12:57,482 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:12:57,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:12:57,562 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:12:57,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:12:57 WrapperNode [2020-09-25 12:12:57,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:12:57,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:12:57,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:12:57,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:12:57,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:12:57" (1/1) ... [2020-09-25 12:12:57,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:12:57" (1/1) ... [2020-09-25 12:12:57,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:12:57" (1/1) ... [2020-09-25 12:12:57,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:12:57" (1/1) ... [2020-09-25 12:12:57,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:12:57" (1/1) ... [2020-09-25 12:12:57,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:12:57" (1/1) ... [2020-09-25 12:12:57,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:12:57" (1/1) ... [2020-09-25 12:12:57,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:12:57,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:12:57,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:12:57,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:12:57,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:12:57" (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 [2020-09-25 12:12:57,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:12:57,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:12:57,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-09-25 12:12:57,718 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-09-25 12:12:57,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-09-25 12:12:57,718 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:12:57,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:12:57,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-09-25 12:12:57,719 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-09-25 12:12:57,719 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-09-25 12:12:57,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:12:57,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-25 12:12:57,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:12:57,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:12:57,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-25 12:12:57,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:12:57,720 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-09-25 12:12:57,721 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:12:57,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:12:57,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-09-25 12:12:57,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:12:58,523 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:12:58,523 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-09-25 12:12:58,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:12:58 BoogieIcfgContainer [2020-09-25 12:12:58,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:12:58,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:12:58,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:12:58,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:12:58,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:12:56" (1/3) ... [2020-09-25 12:12:58,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aeab653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:12:58, skipping insertion in model container [2020-09-25 12:12:58,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:12:57" (2/3) ... [2020-09-25 12:12:58,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aeab653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:12:58, skipping insertion in model container [2020-09-25 12:12:58,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:12:58" (3/3) ... [2020-09-25 12:12:58,541 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-09-25 12:12:58,553 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:12:58,563 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:12:58,582 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:12:58,611 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:12:58,611 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:12:58,611 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:12:58,611 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:12:58,611 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:12:58,612 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:12:58,612 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:12:58,612 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:12:58,640 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2020-09-25 12:12:58,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 12:12:58,650 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:12:58,651 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:12:58,652 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:12:58,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:12:58,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1076720203, now seen corresponding path program 1 times [2020-09-25 12:12:58,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:12:58,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983340771] [2020-09-25 12:12:58,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:12:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:12:58,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:12:58,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:12:59,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:12:59,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:12:59,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 12:12:59,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:12:59,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-09-25 12:12:59,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:12:59,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:12:59,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:12:59,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 12:12:59,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:12:59,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 12:12:59,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:12:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:12:59,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:12:59,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:12:59,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:12:59,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:12:59,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 12:12:59,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:12:59,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:12:59,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:12:59,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:12:59,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:12:59,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:12:59,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 12:12:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:12:59,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:12:59,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:12:59,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:12:59,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:12:59,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 12:12:59,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:12:59,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:12:59,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:12:59,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 12:12:59,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:12:59,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:12:59,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 12:12:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:12:59,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:12:59,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:12:59,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:12:59,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:12:59,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 12:12:59,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:12:59,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 12:12:59,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:12:59,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:12:59,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:12:59,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 12:12:59,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:12:59,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:12:59,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:12:59,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983340771] [2020-09-25 12:12:59,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:12:59,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 12:12:59,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642661030] [2020-09-25 12:12:59,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 12:12:59,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:12:59,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 12:12:59,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 12:12:59,524 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2020-09-25 12:13:00,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:13:00,089 INFO L93 Difference]: Finished difference Result 414 states and 503 transitions. [2020-09-25 12:13:00,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 12:13:00,091 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-25 12:13:00,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:13:00,108 INFO L225 Difference]: With dead ends: 414 [2020-09-25 12:13:00,108 INFO L226 Difference]: Without dead ends: 209 [2020-09-25 12:13:00,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:13:00,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-09-25 12:13:00,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2020-09-25 12:13:00,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-09-25 12:13:00,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 235 transitions. [2020-09-25 12:13:00,182 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 235 transitions. Word has length 51 [2020-09-25 12:13:00,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:13:00,182 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 235 transitions. [2020-09-25 12:13:00,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 12:13:00,183 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 235 transitions. [2020-09-25 12:13:00,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 12:13:00,186 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:13:00,186 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:13:00,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:13:00,187 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:13:00,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:13:00,188 INFO L82 PathProgramCache]: Analyzing trace with hash -484158952, now seen corresponding path program 1 times [2020-09-25 12:13:00,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:13:00,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1162561356] [2020-09-25 12:13:00,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:13:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 12:13:00,270 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 12:13:00,270 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 12:13:00,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:13:00,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:13:00 BoogieIcfgContainer [2020-09-25 12:13:00,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 12:13:00,306 INFO L168 Benchmark]: Toolchain (without parser) took 3334.88 ms. Allocated memory was 140.0 MB in the beginning and 235.9 MB in the end (delta: 95.9 MB). Free memory was 102.4 MB in the beginning and 119.1 MB in the end (delta: -16.7 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. [2020-09-25 12:13:00,307 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 12:13:00,308 INFO L168 Benchmark]: CACSL2BoogieTranslator took 589.86 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 177.9 MB in the end (delta: -76.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-09-25 12:13:00,309 INFO L168 Benchmark]: Boogie Preprocessor took 72.74 ms. Allocated memory is still 203.4 MB. Free memory was 177.9 MB in the beginning and 175.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-25 12:13:00,310 INFO L168 Benchmark]: RCFGBuilder took 894.58 ms. Allocated memory is still 203.4 MB. Free memory was 175.3 MB in the beginning and 127.8 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. [2020-09-25 12:13:00,311 INFO L168 Benchmark]: TraceAbstraction took 1769.40 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 127.8 MB in the beginning and 119.1 MB in the end (delta: 8.7 MB). Peak memory consumption was 41.2 MB. Max. memory is 7.1 GB. [2020-09-25 12:13:00,315 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 589.86 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 177.9 MB in the end (delta: -76.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.74 ms. Allocated memory is still 203.4 MB. Free memory was 177.9 MB in the beginning and 175.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 894.58 ms. Allocated memory is still 203.4 MB. Free memory was 175.3 MB in the beginning and 127.8 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1769.40 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 127.8 MB in the beginning and 119.1 MB in the end (delta: 8.7 MB). Peak memory consumption was 41.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 189]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 188, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L180] double y = 1.0 / 0.0; [L181] double x = __VERIFIER_nondet_double(); [L183] CALL isfinite_double(x) [L164] __int32_t hx; [L166] ieee_double_shape_type gh_u; [L167] gh_u.value = (x) [L168] EXPR gh_u.parts.msw [L168] (hx) = gh_u.parts.msw [L170] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L183] RET isfinite_double(x) [L183] COND TRUE isfinite_double(x) [L185] CALL, EXPR fmod_double(x, y) [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); [L185] RET, EXPR fmod_double(x, y) [L185] double res = fmod_double(x, y); [L188] COND TRUE res != x [L189] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 220 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 239 SDtfs, 37 SDslu, 182 SDs, 0 SdLazy, 260 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 4750 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...