/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0663a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 04:46:13,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:46:13,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:46:13,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:46:13,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:46:13,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:46:13,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:46:13,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:46:13,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:46:13,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:46:13,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:46:13,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:46:13,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:46:13,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:46:13,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:46:13,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:46:13,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:46:13,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:46:13,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:46:13,651 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:46:13,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:46:13,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:46:13,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:46:13,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:46:13,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:46:13,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:46:13,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:46:13,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:46:13,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:46:13,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:46:13,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:46:13,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:46:13,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:46:13,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:46:13,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:46:13,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:46:13,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:46:13,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:46:13,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:46:13,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:46:13,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:46:13,678 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 04:46:13,719 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:46:13,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:46:13,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:46:13,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:46:13,721 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:46:13,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:46:13,722 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:46:13,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:46:13,722 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:46:13,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:46:13,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:46:13,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:46:13,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:46:13,724 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:46:13,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:46:13,724 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:46:13,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:46:13,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:46:13,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:46:13,725 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:46:13,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:46:13,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:46:13,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:46:13,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:46:13,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:46:13,726 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:46:13,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:46:13,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:46:13,727 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:46:13,727 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 04:46:14,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:46:14,048 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:46:14,055 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:46:14,056 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:46:14,061 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:46:14,064 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0663a.c [2020-10-14 04:46:14,124 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/efa983574/e3e1aef8eedf4ce4b9f4347c2d5b8391/FLAGe7ebc2349 [2020-10-14 04:46:14,525 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:46:14,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0663a.c [2020-10-14 04:46:14,542 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/efa983574/e3e1aef8eedf4ce4b9f4347c2d5b8391/FLAGe7ebc2349 [2020-10-14 04:46:14,864 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/efa983574/e3e1aef8eedf4ce4b9f4347c2d5b8391 [2020-10-14 04:46:14,873 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:46:14,875 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:46:14,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:46:14,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:46:14,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:46:14,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:46:14" (1/1) ... [2020-10-14 04:46:14,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f9a5625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:46:14, skipping insertion in model container [2020-10-14 04:46:14,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:46:14" (1/1) ... [2020-10-14 04:46:14,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:46:14,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:46:15,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:46:15,236 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:46:15,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:46:15,436 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:46:15,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:46:15 WrapperNode [2020-10-14 04:46:15,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:46:15,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:46:15,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:46:15,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:46:15,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:46:15" (1/1) ... [2020-10-14 04:46:15,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:46:15" (1/1) ... [2020-10-14 04:46:15,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:46:15" (1/1) ... [2020-10-14 04:46:15,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:46:15" (1/1) ... [2020-10-14 04:46:15,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:46:15" (1/1) ... [2020-10-14 04:46:15,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:46:15" (1/1) ... [2020-10-14 04:46:15,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:46:15" (1/1) ... [2020-10-14 04:46:15,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:46:15,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:46:15,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:46:15,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:46:15,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:46:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:46:15,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:46:15,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:46:15,574 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-14 04:46:15,574 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-14 04:46:15,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-14 04:46:15,575 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:46:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:46:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-14 04:46:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-14 04:46:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 04:46:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-14 04:46:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 04:46:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 04:46:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 04:46:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-14 04:46:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-14 04:46:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-14 04:46:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:46:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:46:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-14 04:46:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:46:16,248 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:46:16,248 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-14 04:46:16,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:46:16 BoogieIcfgContainer [2020-10-14 04:46:16,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:46:16,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:46:16,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:46:16,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:46:16,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:46:14" (1/3) ... [2020-10-14 04:46:16,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788d4539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:46:16, skipping insertion in model container [2020-10-14 04:46:16,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:46:15" (2/3) ... [2020-10-14 04:46:16,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788d4539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:46:16, skipping insertion in model container [2020-10-14 04:46:16,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:46:16" (3/3) ... [2020-10-14 04:46:16,265 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0663a.c [2020-10-14 04:46:16,275 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:46:16,285 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 04:46:16,300 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 04:46:16,331 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:46:16,332 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:46:16,332 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:46:16,332 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:46:16,333 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:46:16,333 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:46:16,334 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:46:16,334 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:46:16,354 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2020-10-14 04:46:16,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-14 04:46:16,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:46:16,362 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:46:16,363 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:46:16,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:46:16,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1380022172, now seen corresponding path program 1 times [2020-10-14 04:46:16,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:46:16,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1795164074] [2020-10-14 04:46:16,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:46:16,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:16,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:16,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:16,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:16,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 04:46:16,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:46:16,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-10-14 04:46:16,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:16,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:16,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:46:16,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 04:46:16,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:46:16,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 04:46:16,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:46:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:16,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:16,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:16,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:46:16,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:16,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 04:46:16,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:16,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:16,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:46:16,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:46:16,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:46:16,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:46:17,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 04:46:17,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:17,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:17,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:17,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:17,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:46:17,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:46:17,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 04:46:17,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:17,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:17,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:46:17,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 04:46:17,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:46:17,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:46:17,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:46:17,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1795164074] [2020-10-14 04:46:17,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:46:17,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:46:17,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735013556] [2020-10-14 04:46:17,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:46:17,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:46:17,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:46:17,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:46:17,058 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 4 states. [2020-10-14 04:46:17,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:46:17,427 INFO L93 Difference]: Finished difference Result 200 states and 317 transitions. [2020-10-14 04:46:17,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 04:46:17,428 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-14 04:46:17,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:46:17,440 INFO L225 Difference]: With dead ends: 200 [2020-10-14 04:46:17,440 INFO L226 Difference]: Without dead ends: 98 [2020-10-14 04:46:17,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:46:17,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-14 04:46:17,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-14 04:46:17,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-14 04:46:17,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2020-10-14 04:46:17,497 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2020-10-14 04:46:17,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:46:17,498 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2020-10-14 04:46:17,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:46:17,498 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2020-10-14 04:46:17,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-14 04:46:17,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:46:17,499 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] [2020-10-14 04:46:17,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:46:17,500 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:46:17,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:46:17,501 INFO L82 PathProgramCache]: Analyzing trace with hash 959017453, now seen corresponding path program 1 times [2020-10-14 04:46:17,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:46:17,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2087784493] [2020-10-14 04:46:17,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:46:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 04:46:17,546 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 04:46:17,546 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 04:46:17,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:46:17,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:46:17 BoogieIcfgContainer [2020-10-14 04:46:17,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 04:46:17,574 INFO L168 Benchmark]: Toolchain (without parser) took 2698.82 ms. Allocated memory was 148.9 MB in the beginning and 232.3 MB in the end (delta: 83.4 MB). Free memory was 104.9 MB in the beginning and 120.2 MB in the end (delta: -15.3 MB). Peak memory consumption was 68.0 MB. Max. memory is 7.1 GB. [2020-10-14 04:46:17,576 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 148.9 MB. Free memory was 123.5 MB in the beginning and 123.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-14 04:46:17,578 INFO L168 Benchmark]: CACSL2BoogieTranslator took 559.09 ms. Allocated memory was 148.9 MB in the beginning and 205.0 MB in the end (delta: 56.1 MB). Free memory was 104.9 MB in the beginning and 179.5 MB in the end (delta: -74.6 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-10-14 04:46:17,578 INFO L168 Benchmark]: Boogie Preprocessor took 71.09 ms. Allocated memory is still 205.0 MB. Free memory was 179.5 MB in the beginning and 176.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2020-10-14 04:46:17,580 INFO L168 Benchmark]: RCFGBuilder took 744.55 ms. Allocated memory is still 205.0 MB. Free memory was 175.5 MB in the beginning and 132.2 MB in the end (delta: 43.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. [2020-10-14 04:46:17,589 INFO L168 Benchmark]: TraceAbstraction took 1317.45 ms. Allocated memory was 205.0 MB in the beginning and 232.3 MB in the end (delta: 27.3 MB). Free memory was 132.2 MB in the beginning and 120.2 MB in the end (delta: 12.0 MB). Peak memory consumption was 39.2 MB. Max. memory is 7.1 GB. [2020-10-14 04:46:17,596 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 148.9 MB. Free memory was 123.5 MB in the beginning and 123.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 559.09 ms. Allocated memory was 148.9 MB in the beginning and 205.0 MB in the end (delta: 56.1 MB). Free memory was 104.9 MB in the beginning and 179.5 MB in the end (delta: -74.6 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 71.09 ms. Allocated memory is still 205.0 MB. Free memory was 179.5 MB in the beginning and 176.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 744.55 ms. Allocated memory is still 205.0 MB. Free memory was 175.5 MB in the beginning and 132.2 MB in the end (delta: 43.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1317.45 ms. Allocated memory was 205.0 MB in the beginning and 232.3 MB in the end (delta: 27.3 MB). Free memory was 132.2 MB in the beginning and 120.2 MB in the end (delta: 12.0 MB). Peak memory consumption was 39.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 260]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 162, overapproximation of someUnaryDOUBLEoperation at line 251, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of someBinaryDOUBLEComparisonOperation at line 259. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L251] double x = -0.0; [L252] double y = __VERIFIER_nondet_double(); [L254] COND TRUE y > 0.0 [L256] CALL, EXPR __ieee754_atan2(y, x) [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; [L256] RET, EXPR __ieee754_atan2(y, x) [L256] double res = __ieee754_atan2(y, x); [L259] COND TRUE res != pi_o_2 [L260] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 139 SDtfs, 16 SDslu, 125 SDs, 0 SdLazy, 139 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred 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, 0.5s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 1512 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...