/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --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_1210.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:18:45,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:18:45,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:18:45,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:18:45,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:18:45,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:18:45,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:18:45,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:18:45,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:18:45,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:18:45,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:18:45,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:18:45,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:18:45,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:18:45,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:18:45,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:18:45,590 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:18:45,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:18:45,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:18:45,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:18:45,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:18:45,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:18:45,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:18:45,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:18:45,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:18:45,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:18:45,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:18:45,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:18:45,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:18:45,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:18:45,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:18:45,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:18:45,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:18:45,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:18:45,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:18:45,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:18:45,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:18:45,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:18:45,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:18:45,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:18:45,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:18:45,647 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 [2020-09-21 11:18:45,694 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:18:45,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:18:45,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:18:45,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:18:45,697 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:18:45,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:18:45,698 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:18:45,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:18:45,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:18:45,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:18:45,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:18:45,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:18:45,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:18:45,701 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:18:45,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:18:45,701 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:18:45,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:18:45,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:18:45,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:18:45,703 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:18:45,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:18:45,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:18:45,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:18:45,707 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:18:45,707 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:18:45,708 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:18:45,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:18:45,708 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:18:45,708 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:18:45,708 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:18:46,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:18:46,224 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:18:46,228 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:18:46,230 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:18:46,230 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:18:46,232 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1210.c [2020-09-21 11:18:46,310 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf3fe1f67/44c7038d042442a6a3ebca2f69370d31/FLAGcf85f202a [2020-09-21 11:18:46,895 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:18:46,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1210.c [2020-09-21 11:18:46,904 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf3fe1f67/44c7038d042442a6a3ebca2f69370d31/FLAGcf85f202a [2020-09-21 11:18:47,214 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf3fe1f67/44c7038d042442a6a3ebca2f69370d31 [2020-09-21 11:18:47,228 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:18:47,235 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:18:47,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:18:47,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:18:47,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:18:47,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:18:47" (1/1) ... [2020-09-21 11:18:47,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67bb90ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:18:47, skipping insertion in model container [2020-09-21 11:18:47,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:18:47" (1/1) ... [2020-09-21 11:18:47,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:18:47,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:18:47,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:18:47,571 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:18:47,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:18:47,714 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:18:47,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:18:47 WrapperNode [2020-09-21 11:18:47,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:18:47,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:18:47,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:18:47,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:18:47,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:18:47" (1/1) ... [2020-09-21 11:18:47,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:18:47" (1/1) ... [2020-09-21 11:18:47,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:18:47" (1/1) ... [2020-09-21 11:18:47,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:18:47" (1/1) ... [2020-09-21 11:18:47,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:18:47" (1/1) ... [2020-09-21 11:18:47,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:18:47" (1/1) ... [2020-09-21 11:18:47,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:18:47" (1/1) ... [2020-09-21 11:18:47,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:18:47,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:18:47,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:18:47,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:18:47,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:18:47" (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 [2020-09-21 11:18:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:18:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:18:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-09-21 11:18:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_double [2020-09-21 11:18:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:18:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:18:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-09-21 11:18:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure modf_double [2020-09-21 11:18:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:18:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-21 11:18:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:18:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:18:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:18:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-21 11:18:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:18:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:18:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:18:48,440 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:18:48,441 INFO L295 CfgBuilder]: Removed 20 assume(true) statements. [2020-09-21 11:18:48,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:18:48 BoogieIcfgContainer [2020-09-21 11:18:48,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:18:48,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:18:48,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:18:48,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:18:48,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:18:47" (1/3) ... [2020-09-21 11:18:48,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dda5b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:18:48, skipping insertion in model container [2020-09-21 11:18:48,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:18:47" (2/3) ... [2020-09-21 11:18:48,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dda5b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:18:48, skipping insertion in model container [2020-09-21 11:18:48,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:18:48" (3/3) ... [2020-09-21 11:18:48,458 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2020-09-21 11:18:48,470 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:18:48,483 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:18:48,505 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:18:48,534 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:18:48,534 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:18:48,534 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:18:48,534 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:18:48,535 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:18:48,535 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:18:48,535 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:18:48,535 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:18:48,559 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2020-09-21 11:18:48,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-21 11:18:48,569 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:18:48,570 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] [2020-09-21 11:18:48,571 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:18:48,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:18:48,580 INFO L82 PathProgramCache]: Analyzing trace with hash 204549601, now seen corresponding path program 1 times [2020-09-21 11:18:48,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:18:48,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116170937] [2020-09-21 11:18:48,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:18:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:18:48,750 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:18:48,750 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:18:48,750 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:18:48,751 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:18:48,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-21 11:18:48,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:18:48,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:18:48,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:18:48,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:18:48,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:18:48,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:18:48,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:18:48,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:18:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:18:48,841 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:18:48,841 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:18:48,845 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:18:48,846 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:18:48,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:18:48,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:18:48,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:18:48,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:18:48,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:18:48,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:18:48,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:18:48,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:18:48,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:18:48,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:18:48,896 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:18:48,896 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:18:48,896 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:18:48,897 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:18:48,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:18:48,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:18:48,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:18:48,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:18:48,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:18:48,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 11:18:48,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:18:48,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:18:48,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 11:18:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:18:48,914 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:18:48,915 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:18:48,915 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:18:48,916 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:18:48,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:18:48,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:18:48,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:18:48,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:18:48,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:18:48,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:18:48,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:18:48,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:18:48,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:18:48,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2116170937] [2020-09-21 11:18:48,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:18:48,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:18:48,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127711699] [2020-09-21 11:18:48,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:18:48,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:18:48,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:18:48,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:18:48,963 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 4 states. [2020-09-21 11:18:49,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:18:49,278 INFO L93 Difference]: Finished difference Result 108 states and 162 transitions. [2020-09-21 11:18:49,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 11:18:49,280 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-09-21 11:18:49,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:18:49,295 INFO L225 Difference]: With dead ends: 108 [2020-09-21 11:18:49,295 INFO L226 Difference]: Without dead ends: 54 [2020-09-21 11:18:49,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:18:49,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-21 11:18:49,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-21 11:18:49,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-21 11:18:49,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2020-09-21 11:18:49,387 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 25 [2020-09-21 11:18:49,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:18:49,388 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2020-09-21 11:18:49,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:18:49,388 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2020-09-21 11:18:49,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-21 11:18:49,391 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:18:49,391 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] [2020-09-21 11:18:49,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:18:49,392 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:18:49,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:18:49,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1987482264, now seen corresponding path program 1 times [2020-09-21 11:18:49,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:18:49,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1078725835] [2020-09-21 11:18:49,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:18:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:18:49,454 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:18:49,455 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:18:49,455 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:18:49,455 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:18:49,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-21 11:18:49,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:18:49,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:18:49,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:18:49,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:18:49,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-21 11:18:49,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:18:49,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:18:49,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:18:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:18:49,555 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:18:49,555 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:18:49,556 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:18:49,556 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:18:49,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:18:49,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:18:49,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:18:49,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:18:49,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:18:49,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:18:49,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:18:49,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:18:49,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:18:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:18:49,601 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:18:49,601 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:18:49,601 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:18:49,602 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:18:49,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:18:49,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:18:49,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:18:49,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:18:49,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:18:49,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:18:49,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:18:49,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 11:18:49,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 11:18:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:18:49,637 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:18:49,637 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:18:49,638 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:18:49,638 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:18:49,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:18:49,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:18:49,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:18:49,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:18:49,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:18:49,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:18:49,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:18:49,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:18:49,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:18:49,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1078725835] [2020-09-21 11:18:49,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:18:49,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:18:49,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697189153] [2020-09-21 11:18:49,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:18:49,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:18:49,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:18:49,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:18:49,650 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 5 states. [2020-09-21 11:18:49,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:18:49,881 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2020-09-21 11:18:49,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:18:49,882 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-09-21 11:18:49,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:18:49,884 INFO L225 Difference]: With dead ends: 57 [2020-09-21 11:18:49,884 INFO L226 Difference]: Without dead ends: 54 [2020-09-21 11:18:49,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:18:49,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-21 11:18:49,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-21 11:18:49,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-21 11:18:49,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2020-09-21 11:18:49,897 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 27 [2020-09-21 11:18:49,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:18:49,904 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2020-09-21 11:18:49,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:18:49,904 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2020-09-21 11:18:49,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-21 11:18:49,906 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:18:49,906 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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] [2020-09-21 11:18:49,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:18:49,907 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:18:49,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:18:49,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1590755806, now seen corresponding path program 1 times [2020-09-21 11:18:49,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:18:49,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1419040525] [2020-09-21 11:18:49,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:18:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:18:50,001 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:18:50,002 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:18:50,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:18:50,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:18:50 BoogieIcfgContainer [2020-09-21 11:18:50,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:18:50,046 INFO L168 Benchmark]: Toolchain (without parser) took 2812.93 ms. Allocated memory was 140.5 MB in the beginning and 235.4 MB in the end (delta: 94.9 MB). Free memory was 103.7 MB in the beginning and 151.3 MB in the end (delta: -47.6 MB). Peak memory consumption was 47.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:18:50,048 INFO L168 Benchmark]: CDTParser took 0.87 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-21 11:18:50,049 INFO L168 Benchmark]: CACSL2BoogieTranslator took 479.90 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.9 MB in the beginning and 180.6 MB in the end (delta: -77.7 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-09-21 11:18:50,050 INFO L168 Benchmark]: Boogie Preprocessor took 84.66 ms. Allocated memory is still 203.4 MB. Free memory was 180.6 MB in the beginning and 178.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:18:50,052 INFO L168 Benchmark]: RCFGBuilder took 646.18 ms. Allocated memory is still 203.4 MB. Free memory was 177.7 MB in the beginning and 146.1 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:18:50,054 INFO L168 Benchmark]: TraceAbstraction took 1592.05 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 146.1 MB in the beginning and 151.3 MB in the end (delta: -5.3 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:18:50,065 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 479.90 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.9 MB in the beginning and 180.6 MB in the end (delta: -77.7 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.66 ms. Allocated memory is still 203.4 MB. Free memory was 180.6 MB in the beginning and 178.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 646.18 ms. Allocated memory is still 203.4 MB. Free memory was 177.7 MB in the beginning and 146.1 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1592.05 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 146.1 MB in the beginning and 151.3 MB in the end (delta: -5.3 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 116, overapproximation of bitwiseAnd at line 33. Possible FailurePath: [L17] static const double one_modf = 1.0; [L116] double x = 0.0 / 0.0; [L117] double iptr; [L118] CALL, EXPR modf_double(x, &iptr) [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff [L29] COND TRUE j0 < 20 [L30] COND TRUE j0 < 0 [L32] ieee_double_shape_type iw_u; [L33] iw_u.parts.msw = (i0 & 0x80000000) [L34] iw_u.parts.lsw = (0) [L35] EXPR iw_u.value [L35] (*iptr) = iw_u.value [L37] return x; [L118] RET, EXPR modf_double(x, &iptr) [L118] double res = modf_double(x, &iptr); [L121] EXPR \read(iptr) [L121] CALL, EXPR isnan_double(iptr) [L15] return x != x; [L121] RET, EXPR isnan_double(iptr) [L121] isnan_double(iptr) && !isnan_double(res) [L121] CALL, EXPR isnan_double(res) [L15] return x != x; [L121] RET, EXPR isnan_double(res) [L121] isnan_double(iptr) && !isnan_double(res) [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 100 SDtfs, 68 SDslu, 35 SDs, 0 SdLazy, 188 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 2478 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...