/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=HIGHLEXORDER --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_1092d.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 18:54:06,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 18:54:06,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 18:54:06,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 18:54:06,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 18:54:06,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 18:54:06,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 18:54:06,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 18:54:06,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 18:54:06,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 18:54:06,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 18:54:06,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 18:54:06,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 18:54:06,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 18:54:06,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 18:54:06,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 18:54:06,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 18:54:06,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 18:54:06,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 18:54:06,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 18:54:06,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 18:54:06,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 18:54:06,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 18:54:06,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 18:54:06,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 18:54:06,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 18:54:06,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 18:54:06,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 18:54:06,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 18:54:06,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 18:54:06,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 18:54:06,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 18:54:06,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 18:54:06,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 18:54:06,432 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 18:54:06,433 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 18:54:06,433 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 18:54:06,434 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 18:54:06,434 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 18:54:06,435 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 18:54:06,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 18:54:06,436 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 18:54:06,474 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 18:54:06,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 18:54:06,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 18:54:06,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 18:54:06,476 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 18:54:06,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 18:54:06,477 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 18:54:06,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 18:54:06,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 18:54:06,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 18:54:06,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 18:54:06,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 18:54:06,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 18:54:06,479 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 18:54:06,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 18:54:06,480 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 18:54:06,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 18:54:06,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 18:54:06,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 18:54:06,481 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 18:54:06,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 18:54:06,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 18:54:06,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 18:54:06,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 18:54:06,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 18:54:06,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 18:54:06,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 18:54:06,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 18:54:06,483 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 18:54:06,483 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=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; [2020-08-21 18:54:06,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 18:54:06,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 18:54:06,796 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 18:54:06,797 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 18:54:06,797 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 18:54:06,798 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092d.c [2020-08-21 18:54:06,862 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e3810552b/ac54528f6f644ab188e2f741ab61443f/FLAGe005fb9ae [2020-08-21 18:54:07,382 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 18:54:07,383 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1092d.c [2020-08-21 18:54:07,390 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e3810552b/ac54528f6f644ab188e2f741ab61443f/FLAGe005fb9ae [2020-08-21 18:54:07,702 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e3810552b/ac54528f6f644ab188e2f741ab61443f [2020-08-21 18:54:07,712 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 18:54:07,714 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 18:54:07,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 18:54:07,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 18:54:07,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 18:54:07,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:54:07" (1/1) ... [2020-08-21 18:54:07,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42a688b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:07, skipping insertion in model container [2020-08-21 18:54:07,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:54:07" (1/1) ... [2020-08-21 18:54:07,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 18:54:07,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 18:54:07,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:54:07,993 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 18:54:08,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:54:08,128 INFO L208 MainTranslator]: Completed translation [2020-08-21 18:54:08,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:08 WrapperNode [2020-08-21 18:54:08,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 18:54:08,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 18:54:08,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 18:54:08,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 18:54:08,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:08" (1/1) ... [2020-08-21 18:54:08,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:08" (1/1) ... [2020-08-21 18:54:08,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:08" (1/1) ... [2020-08-21 18:54:08,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:08" (1/1) ... [2020-08-21 18:54:08,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:08" (1/1) ... [2020-08-21 18:54:08,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:08" (1/1) ... [2020-08-21 18:54:08,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:08" (1/1) ... [2020-08-21 18:54:08,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 18:54:08,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 18:54:08,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 18:54:08,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 18:54:08,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:08" (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 18:54:08,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 18:54:08,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 18:54:08,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2020-08-21 18:54:08,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-08-21 18:54:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 18:54:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 18:54:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2020-08-21 18:54:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 18:54:08,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-21 18:54:08,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 18:54:08,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 18:54:08,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 18:54:08,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-21 18:54:08,256 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-08-21 18:54:08,256 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 18:54:08,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 18:54:08,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 18:54:08,684 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 18:54:08,685 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-08-21 18:54:08,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:54:08 BoogieIcfgContainer [2020-08-21 18:54:08,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 18:54:08,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 18:54:08,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 18:54:08,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 18:54:08,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 06:54:07" (1/3) ... [2020-08-21 18:54:08,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5643090e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:54:08, skipping insertion in model container [2020-08-21 18:54:08,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:08" (2/3) ... [2020-08-21 18:54:08,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5643090e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:54:08, skipping insertion in model container [2020-08-21 18:54:08,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:54:08" (3/3) ... [2020-08-21 18:54:08,697 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092d.c [2020-08-21 18:54:08,705 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 18:54:08,712 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 18:54:08,727 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 18:54:08,752 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 18:54:08,752 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 18:54:08,753 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 18:54:08,753 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 18:54:08,753 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 18:54:08,753 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 18:54:08,753 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 18:54:08,753 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 18:54:08,771 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-08-21 18:54:08,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-08-21 18:54:08,778 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:54:08,779 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] [2020-08-21 18:54:08,780 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:54:08,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:54:08,785 INFO L82 PathProgramCache]: Analyzing trace with hash -661893902, now seen corresponding path program 1 times [2020-08-21 18:54:08,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:54:08,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1073143785] [2020-08-21 18:54:08,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:54:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:08,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:54:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:09,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:54:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:09,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 18:54:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:09,025 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 18:54:09,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1073143785] [2020-08-21 18:54:09,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:54:09,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 18:54:09,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337249078] [2020-08-21 18:54:09,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 18:54:09,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:54:09,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 18:54:09,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 18:54:09,057 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 4 states. [2020-08-21 18:54:09,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:54:09,323 INFO L93 Difference]: Finished difference Result 92 states and 135 transitions. [2020-08-21 18:54:09,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-21 18:54:09,325 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-08-21 18:54:09,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:54:09,337 INFO L225 Difference]: With dead ends: 92 [2020-08-21 18:54:09,338 INFO L226 Difference]: Without dead ends: 46 [2020-08-21 18:54:09,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 18:54:09,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-08-21 18:54:09,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-08-21 18:54:09,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-08-21 18:54:09,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 60 transitions. [2020-08-21 18:54:09,393 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 60 transitions. Word has length 25 [2020-08-21 18:54:09,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:54:09,394 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 60 transitions. [2020-08-21 18:54:09,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 18:54:09,394 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2020-08-21 18:54:09,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-21 18:54:09,396 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:54:09,396 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] [2020-08-21 18:54:09,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 18:54:09,397 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:54:09,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:54:09,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1235447049, now seen corresponding path program 1 times [2020-08-21 18:54:09,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:54:09,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972415243] [2020-08-21 18:54:09,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:54:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-21 18:54:09,579 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-21 18:54:09,580 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 18:54:09,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 18:54:09,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 06:54:09 BoogieIcfgContainer [2020-08-21 18:54:09,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 18:54:09,638 INFO L168 Benchmark]: Toolchain (without parser) took 1920.31 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 104.4 MB in the beginning and 103.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 63.9 MB. Max. memory is 7.1 GB. [2020-08-21 18:54:09,639 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-21 18:54:09,640 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.21 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 104.2 MB in the beginning and 182.4 MB in the end (delta: -78.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-08-21 18:54:09,641 INFO L168 Benchmark]: Boogie Preprocessor took 59.62 ms. Allocated memory is still 204.5 MB. Free memory was 182.4 MB in the beginning and 180.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-08-21 18:54:09,642 INFO L168 Benchmark]: RCFGBuilder took 498.11 ms. Allocated memory is still 204.5 MB. Free memory was 180.4 MB in the beginning and 155.4 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-08-21 18:54:09,643 INFO L168 Benchmark]: TraceAbstraction took 942.71 ms. Allocated memory is still 204.5 MB. Free memory was 154.8 MB in the beginning and 103.4 MB in the end (delta: 51.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 7.1 GB. [2020-08-21 18:54:09,648 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 415.21 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 104.2 MB in the beginning and 182.4 MB in the end (delta: -78.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.62 ms. Allocated memory is still 204.5 MB. Free memory was 182.4 MB in the beginning and 180.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 498.11 ms. Allocated memory is still 204.5 MB. Free memory was 180.4 MB in the beginning and 155.4 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 942.71 ms. Allocated memory is still 204.5 MB. Free memory was 154.8 MB in the beginning and 103.4 MB in the end (delta: 51.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 108]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 38, overapproximation of bitwiseOr at line 90, overapproximation of someBinaryArithmeticDOUBLEoperation at line 103, overapproximation of bitwiseAnd at line 89. Possible FailurePath: [L14] static const double huge_ceil = 1.0e300; [L103] double x = -1.0 / 0.0; [L104] CALL, EXPR ceil_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) [L38] i = (0x000fffff) >> j0 [L39] COND TRUE ((i0 & i) | i1) == 0 [L40] return x; [L104] RET, EXPR ceil_double(x) [L104] double res = ceil_double(x); [L107] CALL, EXPR isinf_double(res) [L82] __int32_t hx, lx; [L84] ieee_double_shape_type ew_u; [L85] ew_u.value = (x) [L86] EXPR ew_u.parts.msw [L86] (hx) = ew_u.parts.msw [L87] EXPR ew_u.parts.lsw [L87] (lx) = ew_u.parts.lsw [L89] hx &= 0x7fffffff [L90] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L91] hx = 0x7ff00000 - hx [L92] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L107] RET, EXPR isinf_double(res) [L107] COND TRUE !isinf_double(res) [L108] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 50 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: 58 SDtfs, 53 SDslu, 5 SDs, 0 SdLazy, 63 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 1440 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...