/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=DEEPEST --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 language data_model -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:43:22,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:43:22,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:43:22,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:43:22,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:43:22,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:43:22,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:43:22,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:43:22,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:43:22,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:43:22,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:43:22,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:43:22,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:43:22,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:43:22,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:43:22,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:43:22,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:43:22,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:43:22,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:43:22,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:43:22,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:43:22,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:43:22,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:43:22,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:43:22,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:43:22,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:43:22,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:43:22,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:43:22,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:43:22,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:43:22,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:43:22,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:43:22,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:43:22,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:43:22,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:43:22,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:43:22,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:43:22,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:43:22,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:43:22,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:43:22,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:43:22,753 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 [2020-10-27 19:43:22,805 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:43:22,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:43:22,810 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:43:22,810 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:43:22,810 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:43:22,811 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:43:22,811 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:43:22,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:43:22,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:43:22,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:43:22,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:43:22,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:43:22,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:43:22,814 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:43:22,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:43:22,814 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:43:22,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:43:22,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:43:22,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:43:22,815 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:43:22,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:43:22,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:43:22,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:43:22,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:43:22,816 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:43:22,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:43:22,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:43:22,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:43:22,817 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:43:22,818 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:43:23,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:43:23,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:43:23,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:43:23,314 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:43:23,314 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:43:23,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122a.c [2020-10-27 19:43:23,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0270bb973/8acb711cafa3451a9ff98dcd23980384/FLAG4af615626 [2020-10-27 19:43:24,026 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:43:24,027 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1122a.c [2020-10-27 19:43:24,038 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0270bb973/8acb711cafa3451a9ff98dcd23980384/FLAG4af615626 [2020-10-27 19:43:24,386 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0270bb973/8acb711cafa3451a9ff98dcd23980384 [2020-10-27 19:43:24,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:43:24,395 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:43:24,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:24,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:43:24,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:43:24,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:24" (1/1) ... [2020-10-27 19:43:24,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2546c730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:24, skipping insertion in model container [2020-10-27 19:43:24,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:24" (1/1) ... [2020-10-27 19:43:24,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:43:24,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:43:24,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:24,655 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:43:24,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:24,729 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:43:24,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:24 WrapperNode [2020-10-27 19:43:24,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:24,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:43:24,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:43:24,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:43:24,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:24" (1/1) ... [2020-10-27 19:43:24,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:24" (1/1) ... [2020-10-27 19:43:24,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:24" (1/1) ... [2020-10-27 19:43:24,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:24" (1/1) ... [2020-10-27 19:43:24,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:24" (1/1) ... [2020-10-27 19:43:24,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:24" (1/1) ... [2020-10-27 19:43:24,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:24" (1/1) ... [2020-10-27 19:43:24,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:43:24,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:43:24,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:43:24,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:43:24,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:24" (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 [2020-10-27 19:43:24,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:43:24,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:43:24,902 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:43:24,902 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-27 19:43:24,902 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-10-27 19:43:24,902 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:43:24,902 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:43:24,903 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:43:24,903 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:43:24,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:43:24,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 19:43:24,903 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-27 19:43:24,903 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-10-27 19:43:24,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:43:24,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:43:24,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:43:24,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:43:24,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:43:24,904 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:43:24,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:43:24,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:43:24,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 19:43:24,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:43:25,893 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:43:25,894 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-27 19:43:25,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:25 BoogieIcfgContainer [2020-10-27 19:43:25,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:43:25,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:43:25,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:43:25,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:43:25,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:43:24" (1/3) ... [2020-10-27 19:43:25,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f1d6214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:25, skipping insertion in model container [2020-10-27 19:43:25,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:24" (2/3) ... [2020-10-27 19:43:25,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f1d6214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:25, skipping insertion in model container [2020-10-27 19:43:25,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:25" (3/3) ... [2020-10-27 19:43:25,907 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122a.c [2020-10-27 19:43:25,921 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:43:25,926 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:43:25,941 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:43:25,972 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:43:25,972 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:43:25,973 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:43:25,973 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:43:25,973 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:43:25,973 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:43:25,973 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:43:25,974 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:43:25,995 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-10-27 19:43:26,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-27 19:43:26,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:26,003 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] [2020-10-27 19:43:26,004 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:26,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:26,011 INFO L82 PathProgramCache]: Analyzing trace with hash 980170601, now seen corresponding path program 1 times [2020-10-27 19:43:26,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:26,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20483233] [2020-10-27 19:43:26,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:26,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:26,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:26,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:26,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 19:43:26,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:43:26,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-27 19:43:26,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:26,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:26,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 19:43:26,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:26,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-27 19:43:26,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:26,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:26,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:26,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:26,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:26,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 19:43:26,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:26,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:26,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:26,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:26,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:26,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:43:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:26,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:26,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:26,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:26,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 19:43:26,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:43:26,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-27 19:43:26,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:26,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:26,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 19:43:26,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:26,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:43:26,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 19:43:26,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:26,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:26,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:26,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:26,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:26,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 19:43:26,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:26,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:26,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:43:26,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:26,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:43:26,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:43:26,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20483233] [2020-10-27 19:43:26,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:26,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:43:26,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959516576] [2020-10-27 19:43:26,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:43:26,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:26,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:43:26,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:43:26,771 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 4 states. [2020-10-27 19:43:27,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:27,182 INFO L93 Difference]: Finished difference Result 133 states and 216 transitions. [2020-10-27 19:43:27,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:43:27,185 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-10-27 19:43:27,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:27,199 INFO L225 Difference]: With dead ends: 133 [2020-10-27 19:43:27,199 INFO L226 Difference]: Without dead ends: 65 [2020-10-27 19:43:27,206 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:43:27,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-27 19:43:27,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-27 19:43:27,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-27 19:43:27,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 91 transitions. [2020-10-27 19:43:27,282 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 91 transitions. Word has length 23 [2020-10-27 19:43:27,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:27,283 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 91 transitions. [2020-10-27 19:43:27,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:43:27,288 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 91 transitions. [2020-10-27 19:43:27,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-27 19:43:27,291 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:27,291 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] [2020-10-27 19:43:27,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:43:27,292 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:27,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:27,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1159049452, now seen corresponding path program 1 times [2020-10-27 19:43:27,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:27,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1694131009] [2020-10-27 19:43:27,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:43:27,412 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:43:27,412 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:43:27,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:43:27,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:43:27 BoogieIcfgContainer [2020-10-27 19:43:27,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:43:27,450 INFO L168 Benchmark]: Toolchain (without parser) took 3056.45 ms. Allocated memory was 125.8 MB in the beginning and 155.2 MB in the end (delta: 29.4 MB). Free memory was 101.1 MB in the beginning and 87.7 MB in the end (delta: 13.5 MB). Peak memory consumption was 43.0 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:27,451 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:43:27,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.89 ms. Allocated memory is still 125.8 MB. Free memory was 100.6 MB in the beginning and 87.5 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:27,453 INFO L168 Benchmark]: Boogie Preprocessor took 87.99 ms. Allocated memory is still 125.8 MB. Free memory was 87.5 MB in the beginning and 85.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:27,455 INFO L168 Benchmark]: RCFGBuilder took 1076.22 ms. Allocated memory was 125.8 MB in the beginning and 155.2 MB in the end (delta: 29.4 MB). Free memory was 85.1 MB in the beginning and 116.2 MB in the end (delta: -31.1 MB). Peak memory consumption was 17.6 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:27,456 INFO L168 Benchmark]: TraceAbstraction took 1546.65 ms. Allocated memory is still 155.2 MB. Free memory was 115.7 MB in the beginning and 87.7 MB in the end (delta: 28.0 MB). Peak memory consumption was 27.5 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:27,467 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 333.89 ms. Allocated memory is still 125.8 MB. Free memory was 100.6 MB in the beginning and 87.5 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 87.99 ms. Allocated memory is still 125.8 MB. Free memory was 87.5 MB in the beginning and 85.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1076.22 ms. Allocated memory was 125.8 MB in the beginning and 155.2 MB in the end (delta: 29.4 MB). Free memory was 85.1 MB in the beginning and 116.2 MB in the end (delta: -31.1 MB). Peak memory consumption was 17.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1546.65 ms. Allocated memory is still 155.2 MB. Free memory was 115.7 MB in the beginning and 87.7 MB in the end (delta: 28.0 MB). Peak memory consumption was 27.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L172] double x = 1.0 / 0.0; [L173] double y = __VERIFIER_nondet_double(); [L174] CALL, EXPR fmod_double(x, y) [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); [L174] RET, EXPR fmod_double(x, y) [L174] double res = fmod_double(x, y); [L177] CALL, EXPR isnan_double(res) [L18] return x != x; [L177] RET, EXPR isnan_double(res) [L177] COND TRUE !isnan_double(res) [L178] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1122a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 93 SDtfs, 10 SDslu, 78 SDs, 0 SdLazy, 94 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred 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, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 1606 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...