/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 SingleStatement --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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:10:53,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:10:53,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:10:53,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:10:53,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:10:53,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:10:53,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:10:53,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:10:53,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:10:53,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:10:53,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:10:53,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:10:53,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:10:53,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:10:53,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:10:53,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:10:53,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:10:53,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:10:53,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:10:53,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:10:53,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:10:53,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:10:53,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:10:53,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:10:53,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:10:53,486 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:10:53,486 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:10:53,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:10:53,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:10:53,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:10:53,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:10:53,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:10:53,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:10:53,495 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:10:53,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:10:53,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:10:53,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:10:53,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:10:53,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:10:53,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:10:53,500 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:10:53,501 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 [2020-09-24 18:10:53,547 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:10:53,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:10:53,550 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:10:53,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:10:53,550 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:10:53,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:10:53,551 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:10:53,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:10:53,552 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:10:53,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:10:53,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:10:53,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:10:53,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:10:53,554 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:10:53,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:10:53,554 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:10:53,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:10:53,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:10:53,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:10:53,555 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:10:53,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:10:53,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:10:53,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:10:53,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:10:53,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:10:53,557 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:10:53,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:10:53,557 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:10:53,557 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:10:53,557 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 -> SingleStatement 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=SMALLEST;log-additional-information=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=SMALLEST;log-additional-information=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=SMALLEST;log-additional-information=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=SMALLEST;log-additional-information=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=SMALLEST;log-additional-information=true; [2020-09-24 18:10:54,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:10:54,119 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:10:54,123 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:10:54,126 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:10:54,126 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:10:54,128 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-09-24 18:10:54,224 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63d30cad2/5aab3124db4d44e7a788948435c8fbd4/FLAG00cab4d01 [2020-09-24 18:10:54,827 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:10:54,831 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-09-24 18:10:54,841 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63d30cad2/5aab3124db4d44e7a788948435c8fbd4/FLAG00cab4d01 [2020-09-24 18:10:55,137 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63d30cad2/5aab3124db4d44e7a788948435c8fbd4 [2020-09-24 18:10:55,151 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:10:55,157 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:10:55,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:10:55,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:10:55,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:10:55,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:10:55" (1/1) ... [2020-09-24 18:10:55,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@556c1ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:55, skipping insertion in model container [2020-09-24 18:10:55,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:10:55" (1/1) ... [2020-09-24 18:10:55,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:10:55,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:10:55,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:10:55,508 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:10:55,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:10:55,695 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:10:55,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:55 WrapperNode [2020-09-24 18:10:55,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:10:55,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:10:55,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:10:55,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:10:55,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:55" (1/1) ... [2020-09-24 18:10:55,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:55" (1/1) ... [2020-09-24 18:10:55,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:55" (1/1) ... [2020-09-24 18:10:55,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:55" (1/1) ... [2020-09-24 18:10:55,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:55" (1/1) ... [2020-09-24 18:10:55,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:55" (1/1) ... [2020-09-24 18:10:55,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:55" (1/1) ... [2020-09-24 18:10:55,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:10:55,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:10:55,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:10:55,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:10:55,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:55" (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 [2020-09-24 18:10:55,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:10:55,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:10:55,858 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-09-24 18:10:55,859 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-09-24 18:10:55,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-09-24 18:10:55,859 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:10:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:10:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-09-24 18:10:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-09-24 18:10:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-09-24 18:10:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:10:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-24 18:10:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:10:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:10:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-24 18:10:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:10:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-09-24 18:10:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:10:55,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:10:55,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-09-24 18:10:55,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:10:56,658 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:10:56,659 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-09-24 18:10:56,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:10:56 BoogieIcfgContainer [2020-09-24 18:10:56,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:10:56,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:10:56,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:10:56,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:10:56,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:10:55" (1/3) ... [2020-09-24 18:10:56,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b2b6437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:10:56, skipping insertion in model container [2020-09-24 18:10:56,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:55" (2/3) ... [2020-09-24 18:10:56,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b2b6437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:10:56, skipping insertion in model container [2020-09-24 18:10:56,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:10:56" (3/3) ... [2020-09-24 18:10:56,685 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-09-24 18:10:56,697 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:10:56,709 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:10:56,729 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:10:56,759 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:10:56,760 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:10:56,760 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:10:56,760 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:10:56,760 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:10:56,760 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:10:56,761 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:10:56,761 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:10:56,790 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2020-09-24 18:10:56,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 18:10:56,802 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:10:56,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:10:56,804 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:10:56,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:10:56,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1076720203, now seen corresponding path program 1 times [2020-09-24 18:10:56,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:10:56,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [201600953] [2020-09-24 18:10:56,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:10:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:56,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:57,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:57,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:57,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:57,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-24 18:10:57,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:10:57,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 403 [2020-09-24 18:10:57,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:57,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:57,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-09-24 18:10:57,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:57,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:10:57,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:10:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:57,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:57,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:57,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 18:10:57,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:10:57,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 18:10:57,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:57,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:57,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:10:57,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:57,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:57,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 18:10:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:57,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:57,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:57,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:57,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:10:57,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:10:57,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 18:10:57,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:57,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:57,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 18:10:57,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:57,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:10:57,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-24 18:10:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:10:57,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:57,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:10:57,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:10:57,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 18:10:57,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:10:57,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 18:10:57,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:10:57,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:10:57,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:10:57,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:10:57,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:10:57,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:10:57,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [201600953] [2020-09-24 18:10:57,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:10:57,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:10:57,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650635953] [2020-09-24 18:10:57,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:10:57,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:10:57,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:10:57,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:10:57,751 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2020-09-24 18:10:58,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:10:58,379 INFO L93 Difference]: Finished difference Result 414 states and 503 transitions. [2020-09-24 18:10:58,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 18:10:58,382 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-24 18:10:58,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:10:58,398 INFO L225 Difference]: With dead ends: 414 [2020-09-24 18:10:58,398 INFO L226 Difference]: Without dead ends: 209 [2020-09-24 18:10:58,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:10:58,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-09-24 18:10:58,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2020-09-24 18:10:58,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-09-24 18:10:58,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 235 transitions. [2020-09-24 18:10:58,482 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 235 transitions. Word has length 51 [2020-09-24 18:10:58,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:10:58,483 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 235 transitions. [2020-09-24 18:10:58,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:10:58,483 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 235 transitions. [2020-09-24 18:10:58,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-24 18:10:58,487 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:10:58,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:10:58,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:10:58,488 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:10:58,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:10:58,489 INFO L82 PathProgramCache]: Analyzing trace with hash -484158952, now seen corresponding path program 1 times [2020-09-24 18:10:58,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:10:58,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984969494] [2020-09-24 18:10:58,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:10:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 18:10:58,594 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 18:10:58,594 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:10:58,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:10:58,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:10:58 BoogieIcfgContainer [2020-09-24 18:10:58,659 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:10:58,663 INFO L168 Benchmark]: Toolchain (without parser) took 3509.28 ms. Allocated memory was 140.5 MB in the beginning and 234.9 MB in the end (delta: 94.4 MB). Free memory was 101.8 MB in the beginning and 118.9 MB in the end (delta: -17.1 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB. [2020-09-24 18:10:58,666 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-24 18:10:58,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 537.55 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.3 MB in the beginning and 179.0 MB in the end (delta: -77.6 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2020-09-24 18:10:58,668 INFO L168 Benchmark]: Boogie Preprocessor took 70.04 ms. Allocated memory is still 203.4 MB. Free memory was 179.0 MB in the beginning and 175.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-09-24 18:10:58,669 INFO L168 Benchmark]: RCFGBuilder took 905.55 ms. Allocated memory is still 203.4 MB. Free memory was 175.9 MB in the beginning and 128.4 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. [2020-09-24 18:10:58,671 INFO L168 Benchmark]: TraceAbstraction took 1984.86 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 128.4 MB in the beginning and 118.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 40.9 MB. Max. memory is 7.1 GB. [2020-09-24 18:10:58,682 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 537.55 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.3 MB in the beginning and 179.0 MB in the end (delta: -77.6 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.04 ms. Allocated memory is still 203.4 MB. Free memory was 179.0 MB in the beginning and 175.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 905.55 ms. Allocated memory is still 203.4 MB. Free memory was 175.9 MB in the beginning and 128.4 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1984.86 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 128.4 MB in the beginning and 118.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 40.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 189]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 188, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L180] double y = 1.0 / 0.0; [L181] double x = __VERIFIER_nondet_double(); [L183] CALL isfinite_double(x) [L164] __int32_t hx; [L166] ieee_double_shape_type gh_u; [L167] gh_u.value = (x) [L168] EXPR gh_u.parts.msw [L168] (hx) = gh_u.parts.msw [L170] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L183] RET isfinite_double(x) [L183] COND TRUE isfinite_double(x) [L185] CALL, EXPR fmod_double(x, y) [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); [L185] RET, EXPR fmod_double(x, y) [L185] double res = fmod_double(x, y); [L188] COND TRUE res != x [L189] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 220 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 239 SDtfs, 37 SDslu, 182 SDs, 0 SdLazy, 260 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred 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, 0.7s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 4750 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...