/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=SHALLOWEST --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_1131a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:02:32,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:02:32,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:02:32,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:02:32,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:02:32,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:02:32,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:02:32,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:02:32,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:02:32,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:02:32,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:02:32,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:02:32,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:02:32,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:02:32,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:02:32,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:02:32,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:02:32,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:02:32,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:02:32,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:02:32,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:02:32,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:02:32,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:02:32,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:02:32,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:02:32,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:02:32,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:02:32,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:02:32,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:02:32,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:02:32,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:02:32,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:02:32,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:02:32,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:02:32,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:02:32,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:02:32,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:02:32,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:02:32,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:02:32,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:02:32,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:02:32,188 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 01:02:32,215 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:02:32,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:02:32,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:02:32,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:02:32,217 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:02:32,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:02:32,218 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:02:32,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:02:32,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:02:32,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:02:32,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:02:32,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:02:32,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:02:32,219 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:02:32,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:02:32,220 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:02:32,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:02:32,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:02:32,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:02:32,220 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:02:32,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:02:32,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:02:32,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:02:32,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:02:32,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:02:32,222 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:02:32,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:02:32,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:02:32,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:02:32,222 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:02:32,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:02:32,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:02:32,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:02:32,665 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:02:32,665 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:02:32,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-10-27 01:02:32,759 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/37fc94c69/2ee18d980e9644d2999ab91560387874/FLAGb6e3fe4d7 [2020-10-27 01:02:33,611 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:02:33,612 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-10-27 01:02:33,622 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/37fc94c69/2ee18d980e9644d2999ab91560387874/FLAGb6e3fe4d7 [2020-10-27 01:02:33,923 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/37fc94c69/2ee18d980e9644d2999ab91560387874 [2020-10-27 01:02:33,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:02:33,935 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:02:33,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:02:33,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:02:33,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:02:33,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:02:33" (1/1) ... [2020-10-27 01:02:33,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19be3450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:33, skipping insertion in model container [2020-10-27 01:02:33,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:02:33" (1/1) ... [2020-10-27 01:02:33,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:02:33,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:02:34,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:02:34,226 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:02:34,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:02:34,340 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:02:34,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:34 WrapperNode [2020-10-27 01:02:34,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:02:34,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:02:34,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:02:34,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:02:34,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:34" (1/1) ... [2020-10-27 01:02:34,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:34" (1/1) ... [2020-10-27 01:02:34,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:34" (1/1) ... [2020-10-27 01:02:34,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:34" (1/1) ... [2020-10-27 01:02:34,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:34" (1/1) ... [2020-10-27 01:02:34,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:34" (1/1) ... [2020-10-27 01:02:34,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:34" (1/1) ... [2020-10-27 01:02:34,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:02:34,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:02:34,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:02:34,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:02:34,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:34" (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 01:02:34,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:02:34,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:02:34,528 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:02:34,529 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-27 01:02:34,529 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-10-27 01:02:34,530 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-10-27 01:02:34,530 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:02:34,531 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:02:34,531 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:02:34,531 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:02:34,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:02:34,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 01:02:34,533 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-27 01:02:34,533 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-10-27 01:02:34,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 01:02:34,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:02:34,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:02:34,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 01:02:34,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:02:34,534 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-10-27 01:02:34,534 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:02:34,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:02:34,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:02:34,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 01:02:34,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:02:35,397 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:02:35,398 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-27 01:02:35,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:02:35 BoogieIcfgContainer [2020-10-27 01:02:35,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:02:35,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:02:35,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:02:35,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:02:35,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:02:33" (1/3) ... [2020-10-27 01:02:35,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363011df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:02:35, skipping insertion in model container [2020-10-27 01:02:35,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:34" (2/3) ... [2020-10-27 01:02:35,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363011df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:02:35, skipping insertion in model container [2020-10-27 01:02:35,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:02:35" (3/3) ... [2020-10-27 01:02:35,415 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-10-27 01:02:35,433 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:02:35,440 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:02:35,459 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:02:35,511 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:02:35,511 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:02:35,511 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:02:35,511 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:02:35,511 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:02:35,512 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:02:35,512 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:02:35,512 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:02:35,541 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-10-27 01:02:35,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-27 01:02:35,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:02:35,552 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] [2020-10-27 01:02:35,552 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:02:35,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:02:35,562 INFO L82 PathProgramCache]: Analyzing trace with hash 154150217, now seen corresponding path program 1 times [2020-10-27 01:02:35,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:02:35,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [265293679] [2020-10-27 01:02:35,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:02:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:02:35,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:02:35,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:02:35,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:02:36,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:02:36,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 01:02:36,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 01:02:36,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-10-27 01:02:36,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:02:36,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:02:36,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 01:02:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:02:36,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 01:02:36,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:02:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:02:36,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:02:36,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:02:36,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:02:36,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:02:36,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 01:02:36,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:02:36,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:02:36,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:02:36,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:02:36,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:02:36,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:02:36,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:02:36,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:02:36,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:02:36,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:02:36,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:02:36,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 01:02:36,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:02:36,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:02:36,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:02:36,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:02:36,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:02:36,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-27 01:02:36,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:02:36,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:02:36,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:02:36,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:02:36,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:02:36,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 01:02:36,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 01:02:36,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-27 01:02:36,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:02:36,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:02:36,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:02:36,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:02:36,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:02:36,406 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 01:02:36,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [265293679] [2020-10-27 01:02:36,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:02:36,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 01:02:36,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601579357] [2020-10-27 01:02:36,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 01:02:36,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:02:36,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 01:02:36,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 01:02:36,445 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 4 states. [2020-10-27 01:02:36,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:02:36,860 INFO L93 Difference]: Finished difference Result 143 states and 233 transitions. [2020-10-27 01:02:36,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 01:02:36,862 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-27 01:02:36,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:02:36,871 INFO L225 Difference]: With dead ends: 143 [2020-10-27 01:02:36,872 INFO L226 Difference]: Without dead ends: 69 [2020-10-27 01:02:36,875 INFO L677 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 [2020-10-27 01:02:36,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-27 01:02:36,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-27 01:02:36,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-27 01:02:36,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 95 transitions. [2020-10-27 01:02:36,923 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 95 transitions. Word has length 26 [2020-10-27 01:02:36,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:02:36,924 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 95 transitions. [2020-10-27 01:02:36,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 01:02:36,924 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 95 transitions. [2020-10-27 01:02:36,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-27 01:02:36,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:02:36,926 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] [2020-10-27 01:02:36,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:02:36,926 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:02:36,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:02:36,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1169914594, now seen corresponding path program 1 times [2020-10-27 01:02:36,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:02:36,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [635756629] [2020-10-27 01:02:36,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:02:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 01:02:36,988 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 01:02:36,988 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 01:02:36,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:02:37,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:02:37 BoogieIcfgContainer [2020-10-27 01:02:37,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:02:37,015 INFO L168 Benchmark]: Toolchain (without parser) took 3085.27 ms. Allocated memory was 125.8 MB in the beginning and 183.5 MB in the end (delta: 57.7 MB). Free memory was 101.1 MB in the beginning and 93.7 MB in the end (delta: 7.4 MB). Peak memory consumption was 65.2 MB. Max. memory is 8.0 GB. [2020-10-27 01:02:37,016 INFO L168 Benchmark]: CDTParser took 0.27 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 01:02:37,017 INFO L168 Benchmark]: CACSL2BoogieTranslator took 404.78 ms. Allocated memory is still 125.8 MB. Free memory was 100.6 MB in the beginning and 87.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-27 01:02:37,018 INFO L168 Benchmark]: Boogie Preprocessor took 97.86 ms. Allocated memory is still 125.8 MB. Free memory was 87.3 MB in the beginning and 84.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 01:02:37,019 INFO L168 Benchmark]: RCFGBuilder took 959.09 ms. Allocated memory was 125.8 MB in the beginning and 183.5 MB in the end (delta: 57.7 MB). Free memory was 84.8 MB in the beginning and 140.4 MB in the end (delta: -55.6 MB). Peak memory consumption was 15.0 MB. Max. memory is 8.0 GB. [2020-10-27 01:02:37,020 INFO L168 Benchmark]: TraceAbstraction took 1607.05 ms. Allocated memory is still 183.5 MB. Free memory was 139.9 MB in the beginning and 93.7 MB in the end (delta: 46.2 MB). Peak memory consumption was 46.1 MB. Max. memory is 8.0 GB. [2020-10-27 01:02:37,024 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 404.78 ms. Allocated memory is still 125.8 MB. Free memory was 100.6 MB in the beginning and 87.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 97.86 ms. Allocated memory is still 125.8 MB. Free memory was 87.3 MB in the beginning and 84.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 959.09 ms. Allocated memory was 125.8 MB in the beginning and 183.5 MB in the end (delta: 57.7 MB). Free memory was 84.8 MB in the beginning and 140.4 MB in the end (delta: -55.6 MB). Peak memory consumption was 15.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1607.05 ms. Allocated memory is still 183.5 MB. Free memory was 139.9 MB in the beginning and 93.7 MB in the end (delta: 46.2 MB). Peak memory consumption was 46.1 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 someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 190, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L182] double y = 1.0 / 0.0; [L183] double x = __VERIFIER_nondet_double(); [L185] CALL isfinite_double(x) [L166] __int32_t hx; [L168] ieee_double_shape_type gh_u; [L169] gh_u.value = (x) [L170] EXPR gh_u.parts.msw [L170] (hx) = gh_u.parts.msw [L172] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L185] RET isfinite_double(x) [L185] COND TRUE isfinite_double(x) [L187] 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); [L187] RET, EXPR fmod_double(x, y) [L187] double res = fmod_double(x, y); [L190] COND TRUE res != x [L191] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1131a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 80 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: 98 SDtfs, 8 SDslu, 86 SDs, 0 SdLazy, 101 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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=77occurred 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, 0.6s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 2200 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...