/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --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_1051.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 20:30:49,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 20:30:49,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 20:30:49,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 20:30:49,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 20:30:49,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 20:30:49,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 20:30:49,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 20:30:49,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 20:30:49,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 20:30:49,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 20:30:49,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 20:30:49,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 20:30:49,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 20:30:49,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 20:30:49,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 20:30:49,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 20:30:49,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 20:30:49,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 20:30:49,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 20:30:49,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 20:30:49,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 20:30:49,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 20:30:49,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 20:30:49,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 20:30:49,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 20:30:49,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 20:30:49,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 20:30:49,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 20:30:49,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 20:30:49,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 20:30:49,597 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 20:30:49,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 20:30:49,598 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 20:30:49,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 20:30:49,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 20:30:49,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 20:30:49,605 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 20:30:49,605 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 20:30:49,606 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 20:30:49,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 20:30:49,608 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 20:30:49,647 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 20:30:49,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 20:30:49,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 20:30:49,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 20:30:49,649 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 20:30:49,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 20:30:49,649 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 20:30:49,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 20:30:49,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 20:30:49,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 20:30:49,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 20:30:49,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 20:30:49,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 20:30:49,652 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 20:30:49,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 20:30:49,653 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 20:30:49,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 20:30:49,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 20:30:49,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 20:30:49,654 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 20:30:49,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 20:30:49,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 20:30:49,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 20:30:49,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 20:30:49,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 20:30:49,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 20:30:49,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 20:30:49,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 20:30:49,657 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 20:30:49,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-08-21 20:30:49,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 20:30:49,954 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 20:30:49,958 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 20:30:49,959 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 20:30:49,960 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 20:30:49,961 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-08-21 20:30:50,033 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d318bdab/712cce0c737d4c0cb4fdbc88e2bb7ae8/FLAG5304e41b9 [2020-08-21 20:30:50,501 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 20:30:50,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-08-21 20:30:50,509 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d318bdab/712cce0c737d4c0cb4fdbc88e2bb7ae8/FLAG5304e41b9 [2020-08-21 20:30:50,871 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d318bdab/712cce0c737d4c0cb4fdbc88e2bb7ae8 [2020-08-21 20:30:50,880 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 20:30:50,882 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 20:30:50,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 20:30:50,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 20:30:50,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 20:30:50,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 08:30:50" (1/1) ... [2020-08-21 20:30:50,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43889371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:30:50, skipping insertion in model container [2020-08-21 20:30:50,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 08:30:50" (1/1) ... [2020-08-21 20:30:50,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 20:30:50,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 20:30:51,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 20:30:51,115 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 20:30:51,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 20:30:51,275 INFO L208 MainTranslator]: Completed translation [2020-08-21 20:30:51,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:30:51 WrapperNode [2020-08-21 20:30:51,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 20:30:51,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 20:30:51,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 20:30:51,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 20:30:51,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:30:51" (1/1) ... [2020-08-21 20:30:51,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:30:51" (1/1) ... [2020-08-21 20:30:51,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:30:51" (1/1) ... [2020-08-21 20:30:51,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:30:51" (1/1) ... [2020-08-21 20:30:51,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:30:51" (1/1) ... [2020-08-21 20:30:51,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:30:51" (1/1) ... [2020-08-21 20:30:51,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:30:51" (1/1) ... [2020-08-21 20:30:51,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 20:30:51,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 20:30:51,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 20:30:51,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 20:30:51,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:30:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 20:30:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 20:30:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 20:30:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2020-08-21 20:30:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-21 20:30:51,390 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 20:30:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 20:30:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2020-08-21 20:30:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 20:30:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-21 20:30:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 20:30:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 20:30:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 20:30:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-21 20:30:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-21 20:30:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 20:30:51,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 20:30:51,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 20:30:51,728 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 20:30:51,729 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-21 20:30:51,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 08:30:51 BoogieIcfgContainer [2020-08-21 20:30:51,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 20:30:51,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 20:30:51,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 20:30:51,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 20:30:51,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 08:30:50" (1/3) ... [2020-08-21 20:30:51,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219f60e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 08:30:51, skipping insertion in model container [2020-08-21 20:30:51,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:30:51" (2/3) ... [2020-08-21 20:30:51,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219f60e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 08:30:51, skipping insertion in model container [2020-08-21 20:30:51,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 08:30:51" (3/3) ... [2020-08-21 20:30:51,742 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2020-08-21 20:30:51,754 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 20:30:51,762 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 20:30:51,779 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 20:30:51,806 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 20:30:51,807 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 20:30:51,807 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 20:30:51,807 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 20:30:51,807 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 20:30:51,808 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 20:30:51,808 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 20:30:51,808 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 20:30:51,828 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-08-21 20:30:51,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-08-21 20:30:51,836 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:30:51,837 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] [2020-08-21 20:30:51,837 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:30:51,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:30:51,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1635654302, now seen corresponding path program 1 times [2020-08-21 20:30:51,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:30:51,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067429395] [2020-08-21 20:30:51,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:30:51,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:30:52,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:30:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:30:52,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 20:30:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:30:52,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 20:30:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:30:52,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:30:52,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067429395] [2020-08-21 20:30:52,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:30:52,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 20:30:52,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638928721] [2020-08-21 20:30:52,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 20:30:52,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:30:52,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 20:30:52,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 20:30:52,135 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 4 states. [2020-08-21 20:30:52,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:30:52,483 INFO L93 Difference]: Finished difference Result 86 states and 124 transitions. [2020-08-21 20:30:52,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-21 20:30:52,485 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-08-21 20:30:52,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:30:52,504 INFO L225 Difference]: With dead ends: 86 [2020-08-21 20:30:52,505 INFO L226 Difference]: Without dead ends: 43 [2020-08-21 20:30:52,511 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 [2020-08-21 20:30:52,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-08-21 20:30:52,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-08-21 20:30:52,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-08-21 20:30:52,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2020-08-21 20:30:52,565 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 23 [2020-08-21 20:30:52,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:30:52,565 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2020-08-21 20:30:52,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 20:30:52,566 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2020-08-21 20:30:52,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-08-21 20:30:52,568 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:30:52,569 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] [2020-08-21 20:30:52,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 20:30:52,570 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:30:52,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:30:52,570 INFO L82 PathProgramCache]: Analyzing trace with hash 744784661, now seen corresponding path program 1 times [2020-08-21 20:30:52,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:30:52,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064785572] [2020-08-21 20:30:52,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:30:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-21 20:30:52,664 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-21 20:30:52,664 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 20:30:52,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 20:30:52,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 08:30:52 BoogieIcfgContainer [2020-08-21 20:30:52,687 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 20:30:52,690 INFO L168 Benchmark]: Toolchain (without parser) took 1807.05 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.4 MB in the beginning and 109.4 MB in the end (delta: -7.0 MB). Peak memory consumption was 56.5 MB. Max. memory is 7.1 GB. [2020-08-21 20:30:52,690 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 20:30:52,692 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.14 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.2 MB in the beginning and 182.0 MB in the end (delta: -79.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-08-21 20:30:52,692 INFO L168 Benchmark]: Boogie Preprocessor took 45.08 ms. Allocated memory is still 204.5 MB. Free memory was 182.0 MB in the beginning and 179.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-08-21 20:30:52,693 INFO L168 Benchmark]: RCFGBuilder took 410.82 ms. Allocated memory is still 204.5 MB. Free memory was 179.4 MB in the beginning and 157.6 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-08-21 20:30:52,694 INFO L168 Benchmark]: TraceAbstraction took 951.69 ms. Allocated memory is still 204.5 MB. Free memory was 157.0 MB in the beginning and 109.4 MB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. [2020-08-21 20:30:52,698 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 395.14 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.2 MB in the beginning and 182.0 MB in the end (delta: -79.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.08 ms. Allocated memory is still 204.5 MB. Free memory was 182.0 MB in the beginning and 179.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 410.82 ms. Allocated memory is still 204.5 MB. Free memory was 179.4 MB in the beginning and 157.6 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 951.69 ms. Allocated memory is still 204.5 MB. Free memory was 157.0 MB in the beginning and 109.4 MB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 93]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 38, overapproximation of someBinaryArithmeticDOUBLEoperation at line 88, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 80. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; [L88] double x = 0.0 / 0.0; [L89] CALL, EXPR floor_double(x) [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff [L26] COND TRUE j0 < 20 [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] return x; [L89] RET, EXPR floor_double(x) [L89] double res = floor_double(x); [L92] CALL, EXPR isnan_double(res) [L80] return x != x; [L92] RET, EXPR isnan_double(res) [L92] COND TRUE !isnan_double(res) [L93] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 52 SDslu, 5 SDs, 0 SdLazy, 58 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 0.1s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 1012 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...