/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_1121a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 09:07:24,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:07:24,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:07:24,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:07:24,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:07:24,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:07:24,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:07:24,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:07:24,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:07:24,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:07:24,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:07:24,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:07:24,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:07:24,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:07:24,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:07:24,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:07:24,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:07:24,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:07:24,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:07:24,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:07:24,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:07:24,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:07:24,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:07:24,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:07:24,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:07:24,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:07:24,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:07:24,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:07:24,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:07:24,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:07:24,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:07:24,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:07:24,671 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:07:24,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:07:24,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:07:24,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:07:24,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:07:24,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:07:24,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:07:24,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:07:24,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:07:24,702 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 [2020-10-29 09:07:24,732 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:07:24,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:07:24,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:07:24,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:07:24,735 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:07:24,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:07:24,735 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:07:24,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:07:24,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:07:24,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:07:24,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:07:24,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:07:24,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:07:24,737 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:07:24,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:07:24,738 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:07:24,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:07:24,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:07:24,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:07:24,739 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:07:24,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:07:24,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:07:24,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:07:24,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:07:24,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:07:24,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:07:24,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:07:24,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:07:24,742 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:07:24,742 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:07:25,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:07:25,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:07:25,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:07:25,282 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:07:25,283 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:07:25,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1121a.c [2020-10-29 09:07:25,376 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad5f8fd0b/1f2f1fc259154dc1bb85489fe57b616f/FLAGb7292c2a9 [2020-10-29 09:07:26,040 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:07:26,041 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1121a.c [2020-10-29 09:07:26,058 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad5f8fd0b/1f2f1fc259154dc1bb85489fe57b616f/FLAGb7292c2a9 [2020-10-29 09:07:26,379 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad5f8fd0b/1f2f1fc259154dc1bb85489fe57b616f [2020-10-29 09:07:26,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:07:26,389 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:07:26,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:07:26,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:07:26,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:07:26,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:07:26" (1/1) ... [2020-10-29 09:07:26,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28aff361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:26, skipping insertion in model container [2020-10-29 09:07:26,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:07:26" (1/1) ... [2020-10-29 09:07:26,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:07:26,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:07:26,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:07:26,708 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:07:26,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:07:26,838 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:07:26,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:26 WrapperNode [2020-10-29 09:07:26,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:07:26,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:07:26,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:07:26,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:07:26,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:26" (1/1) ... [2020-10-29 09:07:26,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:26" (1/1) ... [2020-10-29 09:07:26,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:26" (1/1) ... [2020-10-29 09:07:26,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:26" (1/1) ... [2020-10-29 09:07:26,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:26" (1/1) ... [2020-10-29 09:07:26,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:26" (1/1) ... [2020-10-29 09:07:26,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:26" (1/1) ... [2020-10-29 09:07:26,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:07:26,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:07:26,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:07:26,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:07:26,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:26" (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 [2020-10-29 09:07:27,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:07:27,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:07:27,074 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:07:27,074 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-29 09:07:27,074 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-10-29 09:07:27,074 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:07:27,074 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:07:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:07:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:07:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:07:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-29 09:07:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-29 09:07:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-10-29 09:07:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-29 09:07:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:07:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:07:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-29 09:07:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:07:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:07:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:07:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:07:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-29 09:07:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:07:27,911 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:07:27,911 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-29 09:07:27,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:07:27 BoogieIcfgContainer [2020-10-29 09:07:27,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:07:27,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:07:27,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:07:27,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:07:27,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:07:26" (1/3) ... [2020-10-29 09:07:27,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5680ef10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:07:27, skipping insertion in model container [2020-10-29 09:07:27,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:26" (2/3) ... [2020-10-29 09:07:27,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5680ef10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:07:27, skipping insertion in model container [2020-10-29 09:07:27,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:07:27" (3/3) ... [2020-10-29 09:07:27,930 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121a.c [2020-10-29 09:07:27,962 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:07:27,976 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:07:28,017 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:07:28,080 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:07:28,082 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:07:28,082 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:07:28,083 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:07:28,083 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:07:28,083 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:07:28,083 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:07:28,083 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:07:28,107 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-10-29 09:07:28,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-29 09:07:28,115 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:07:28,116 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] [2020-10-29 09:07:28,116 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:07:28,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:07:28,126 INFO L82 PathProgramCache]: Analyzing trace with hash 980170601, now seen corresponding path program 1 times [2020-10-29 09:07:28,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:07:28,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992035898] [2020-10-29 09:07:28,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:07:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:07:28,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:07:28,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:07:28,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:07:28,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-29 09:07:28,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:07:28,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-10-29 09:07:28,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:07:28,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:07:28,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:07:28,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 09:07:28,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:07:28,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-29 09:07:28,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:07:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:07:28,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:07:28,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:07:28,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:07:28,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:07:28,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 09:07:28,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:07:28,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:07:28,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:07:28,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:07:28,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:07:28,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:07:28,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:07:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:07:28,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:07:28,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:07:28,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:07:28,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 09:07:28,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:07:28,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 09:07:28,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:07:28,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:07:28,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:07:28,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-29 09:07:28,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:07:28,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:07:28,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 09:07:28,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:07:28,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:07:28,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:07:28,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:07:28,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:07:28,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 09:07:28,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:07:28,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:07:28,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:07:28,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:07:28,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:07:28,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 09:07:28,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:07:28,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1992035898] [2020-10-29 09:07:28,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:07:28,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 09:07:28,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245046086] [2020-10-29 09:07:28,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 09:07:28,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:07:28,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 09:07:28,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 09:07:28,887 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 4 states. [2020-10-29 09:07:29,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:07:29,315 INFO L93 Difference]: Finished difference Result 133 states and 216 transitions. [2020-10-29 09:07:29,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-29 09:07:29,317 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-10-29 09:07:29,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:07:29,328 INFO L225 Difference]: With dead ends: 133 [2020-10-29 09:07:29,328 INFO L226 Difference]: Without dead ends: 65 [2020-10-29 09:07:29,332 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 [2020-10-29 09:07:29,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-29 09:07:29,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-29 09:07:29,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-29 09:07:29,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 91 transitions. [2020-10-29 09:07:29,382 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 91 transitions. Word has length 23 [2020-10-29 09:07:29,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:07:29,383 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 91 transitions. [2020-10-29 09:07:29,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 09:07:29,383 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 91 transitions. [2020-10-29 09:07:29,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-29 09:07:29,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:07:29,385 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] [2020-10-29 09:07:29,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:07:29,386 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:07:29,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:07:29,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1159049452, now seen corresponding path program 1 times [2020-10-29 09:07:29,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:07:29,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1254964478] [2020-10-29 09:07:29,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:07:29,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 09:07:29,458 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 09:07:29,458 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 09:07:29,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 09:07:29,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 09:07:29 BoogieIcfgContainer [2020-10-29 09:07:29,482 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 09:07:29,485 INFO L168 Benchmark]: Toolchain (without parser) took 3099.20 ms. Allocated memory is still 155.2 MB. Free memory was 130.6 MB in the beginning and 114.1 MB in the end (delta: 16.4 MB). Peak memory consumption was 18.0 MB. Max. memory is 8.0 GB. [2020-10-29 09:07:29,486 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 155.2 MB. Free memory is still 129.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:07:29,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 448.72 ms. Allocated memory is still 155.2 MB. Free memory was 130.0 MB in the beginning and 116.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-29 09:07:29,487 INFO L168 Benchmark]: Boogie Preprocessor took 139.11 ms. Allocated memory is still 155.2 MB. Free memory was 116.9 MB in the beginning and 114.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-29 09:07:29,488 INFO L168 Benchmark]: RCFGBuilder took 932.75 ms. Allocated memory is still 155.2 MB. Free memory was 114.4 MB in the beginning and 115.2 MB in the end (delta: -774.7 kB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. [2020-10-29 09:07:29,489 INFO L168 Benchmark]: TraceAbstraction took 1567.23 ms. Allocated memory is still 155.2 MB. Free memory was 114.6 MB in the beginning and 114.1 MB in the end (delta: 504.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-29 09:07:29,493 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 155.2 MB. Free memory is still 129.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 448.72 ms. Allocated memory is still 155.2 MB. Free memory was 130.0 MB in the beginning and 116.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 139.11 ms. Allocated memory is still 155.2 MB. Free memory was 116.9 MB in the beginning and 114.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 932.75 ms. Allocated memory is still 155.2 MB. Free memory was 114.4 MB in the beginning and 115.2 MB in the end (delta: -774.7 kB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1567.23 ms. Allocated memory is still 155.2 MB. Free memory was 114.6 MB in the beginning and 114.1 MB in the end (delta: 504.5 kB). Peak memory consumption was 2.1 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 bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, 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, }; [L171] double x = __VERIFIER_nondet_double(); [L172] double y = 0.0; [L173] 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); [L173] RET, EXPR fmod_double(x, y) [L173] double res = fmod_double(x, y); [L176] CALL, EXPR isnan_double(res) [L18] return x != x; [L176] RET, EXPR isnan_double(res) [L176] COND TRUE !isnan_double(res) [L177] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1121a.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: 1.3s, 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...