/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_0834.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:01:52,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:01:52,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:01:53,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:01:53,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:01:53,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:01:53,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:01:53,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:01:53,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:01:53,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:01:53,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:01:53,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:01:53,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:01:53,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:01:53,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:01:53,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:01:53,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:01:53,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:01:53,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:01:53,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:01:53,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:01:53,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:01:53,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:01:53,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:01:53,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:01:53,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:01:53,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:01:53,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:01:53,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:01:53,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:01:53,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:01:53,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:01:53,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:01:53,098 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:01:53,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:01:53,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:01:53,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:01:53,100 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:01:53,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:01:53,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:01:53,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:01:53,103 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 01:01:53,161 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:01:53,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:01:53,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:01:53,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:01:53,167 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:01:53,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:01:53,167 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:01:53,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:01:53,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:01:53,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:01:53,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:01:53,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:01:53,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:01:53,169 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:01:53,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:01:53,170 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:01:53,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:01:53,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:01:53,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:01:53,171 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:01:53,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:01:53,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:01:53,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:01:53,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:01:53,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:01:53,172 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:01:53,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:01:53,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:01:53,173 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:01:53,174 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:01:53,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:01:53,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:01:53,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:01:53,630 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:01:53,630 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:01:53,633 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0834.c [2020-10-27 01:01:53,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50cbc1b1a/7af34318ec6e4f7a850c90e3efbadfde/FLAG53c945b7a [2020-10-27 01:01:54,356 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:01:54,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0834.c [2020-10-27 01:01:54,365 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50cbc1b1a/7af34318ec6e4f7a850c90e3efbadfde/FLAG53c945b7a [2020-10-27 01:01:54,707 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50cbc1b1a/7af34318ec6e4f7a850c90e3efbadfde [2020-10-27 01:01:54,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:01:54,723 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:01:54,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:01:54,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:01:54,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:01:54,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:01:54" (1/1) ... [2020-10-27 01:01:54,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62c86b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:54, skipping insertion in model container [2020-10-27 01:01:54,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:01:54" (1/1) ... [2020-10-27 01:01:54,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:01:54,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:01:55,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:01:55,052 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:01:55,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:01:55,142 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:01:55,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:55 WrapperNode [2020-10-27 01:01:55,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:01:55,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:01:55,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:01:55,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:01:55,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:55" (1/1) ... [2020-10-27 01:01:55,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:55" (1/1) ... [2020-10-27 01:01:55,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:55" (1/1) ... [2020-10-27 01:01:55,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:55" (1/1) ... [2020-10-27 01:01:55,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:55" (1/1) ... [2020-10-27 01:01:55,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:55" (1/1) ... [2020-10-27 01:01:55,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:55" (1/1) ... [2020-10-27 01:01:55,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:01:55,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:01:55,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:01:55,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:01:55,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:55" (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 [2020-10-27 01:01:55,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:01:55,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:01:55,384 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:01:55,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_exp [2020-10-27 01:01:55,384 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-10-27 01:01:55,384 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:01:55,385 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:01:55,385 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:01:55,385 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:01:55,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:01:55,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 01:01:55,386 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_exp [2020-10-27 01:01:55,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 01:01:55,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:01:55,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:01:55,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 01:01:55,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:01:55,387 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-10-27 01:01:55,387 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:01:55,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:01:55,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:01:55,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 01:01:55,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:01:56,040 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:01:56,041 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-27 01:01:56,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:01:56 BoogieIcfgContainer [2020-10-27 01:01:56,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:01:56,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:01:56,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:01:56,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:01:56,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:01:54" (1/3) ... [2020-10-27 01:01:56,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b3e55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:01:56, skipping insertion in model container [2020-10-27 01:01:56,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:55" (2/3) ... [2020-10-27 01:01:56,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b3e55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:01:56, skipping insertion in model container [2020-10-27 01:01:56,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:01:56" (3/3) ... [2020-10-27 01:01:56,052 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0834.c [2020-10-27 01:01:56,065 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:01:56,071 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:01:56,086 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:01:56,113 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:01:56,114 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:01:56,114 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:01:56,114 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:01:56,114 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:01:56,114 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:01:56,114 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:01:56,115 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:01:56,133 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2020-10-27 01:01:56,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-27 01:01:56,140 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:01:56,141 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 01:01:56,141 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:01:56,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:01:56,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1323054352, now seen corresponding path program 1 times [2020-10-27 01:01:56,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:01:56,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2094021234] [2020-10-27 01:01:56,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:01:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:56,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:56,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:56,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:56,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 01:01:56,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:01:56,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 527 [2020-10-27 01:01:56,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:56,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:56,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 01:01:56,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:56,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 01:01:57,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:01:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:57,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:57,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:57,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:01:57,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:01:57,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 01:01:57,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:57,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:57,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:01:57,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:57,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:57,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:01:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:57,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:57,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:57,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 01:01:57,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:01:57,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 01:01:57,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:57,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:57,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:01:57,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:57,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:57,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 01:01:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:57,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:57,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:57,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:57,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:01:57,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:01:57,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 01:01:57,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:57,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:57,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:01:57,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:57,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:57,164 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 01:01:57,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2094021234] [2020-10-27 01:01:57,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:01:57,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 01:01:57,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479103790] [2020-10-27 01:01:57,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 01:01:57,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:01:57,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 01:01:57,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 01:01:57,197 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 4 states. [2020-10-27 01:01:57,336 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 01:01:57,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:01:57,571 INFO L93 Difference]: Finished difference Result 109 states and 163 transitions. [2020-10-27 01:01:57,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 01:01:57,573 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-27 01:01:57,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:01:57,583 INFO L225 Difference]: With dead ends: 109 [2020-10-27 01:01:57,583 INFO L226 Difference]: Without dead ends: 53 [2020-10-27 01:01:57,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 01:01:57,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-27 01:01:57,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-27 01:01:57,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-27 01:01:57,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2020-10-27 01:01:57,637 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 26 [2020-10-27 01:01:57,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:01:57,637 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2020-10-27 01:01:57,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 01:01:57,637 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2020-10-27 01:01:57,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-27 01:01:57,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:01:57,639 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] [2020-10-27 01:01:57,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:01:57,640 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:01:57,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:01:57,641 INFO L82 PathProgramCache]: Analyzing trace with hash -889626575, now seen corresponding path program 1 times [2020-10-27 01:01:57,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:01:57,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [854471096] [2020-10-27 01:01:57,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:01:57,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 01:01:57,722 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 01:01:57,723 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 01:01:57,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:01:57,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:01:57 BoogieIcfgContainer [2020-10-27 01:01:57,756 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:01:57,761 INFO L168 Benchmark]: Toolchain (without parser) took 3042.52 ms. Allocated memory is still 163.6 MB. Free memory was 138.8 MB in the beginning and 119.1 MB in the end (delta: 19.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:57,762 INFO L168 Benchmark]: CDTParser took 0.62 ms. Allocated memory is still 125.8 MB. Free memory is still 101.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:01:57,763 INFO L168 Benchmark]: CACSL2BoogieTranslator took 416.56 ms. Allocated memory is still 163.6 MB. Free memory was 138.2 MB in the beginning and 125.5 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:57,764 INFO L168 Benchmark]: Boogie Preprocessor took 130.37 ms. Allocated memory is still 163.6 MB. Free memory was 125.5 MB in the beginning and 123.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:57,765 INFO L168 Benchmark]: RCFGBuilder took 765.01 ms. Allocated memory is still 163.6 MB. Free memory was 123.0 MB in the beginning and 127.5 MB in the end (delta: -4.5 MB). Peak memory consumption was 16.1 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:57,767 INFO L168 Benchmark]: TraceAbstraction took 1712.22 ms. Allocated memory is still 163.6 MB. Free memory was 127.1 MB in the beginning and 119.1 MB in the end (delta: 8.0 MB). Peak memory consumption was 7.8 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:57,778 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 ms. Allocated memory is still 125.8 MB. Free memory is still 101.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 416.56 ms. Allocated memory is still 163.6 MB. Free memory was 138.2 MB in the beginning and 125.5 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 130.37 ms. Allocated memory is still 163.6 MB. Free memory was 125.5 MB in the beginning and 123.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 765.01 ms. Allocated memory is still 163.6 MB. Free memory was 123.0 MB in the beginning and 127.5 MB in the end (delta: -4.5 MB). Peak memory consumption was 16.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1712.22 ms. Allocated memory is still 163.6 MB. Free memory was 127.1 MB in the beginning and 119.1 MB in the end (delta: 8.0 MB). Peak memory consumption was 7.8 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 143, overapproximation of someUnaryDOUBLEoperation at line 23, overapproximation of someBinaryArithmeticDOUBLEoperation at line 73, overapproximation of bitwiseAnd at line 142, overapproximation of someBinaryDOUBLEComparisonOperation at line 72. Possible FailurePath: [L19-L44] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; [L155] double x = 1.0 / 0.0; [L156] CALL, EXPR __ieee754_exp(x) [L47] double y, hi, lo, c, t; [L48] __int32_t k = 0, xsb; [L49] __uint32_t hx; [L52] ieee_double_shape_type gh_u; [L53] gh_u.value = (x) [L54] EXPR gh_u.parts.msw [L54] (hx) = gh_u.parts.msw [L56] xsb = (hx >> 31) & 1 [L57] hx &= 0x7fffffff [L59] COND TRUE hx >= 0x40862E42 [L60] COND FALSE !(hx >= 0x7ff00000) [L72] COND TRUE x > o_threshold_exp [L73] return huge_exp * huge_exp; [L156] RET, EXPR __ieee754_exp(x) [L156] double res = __ieee754_exp(x); [L159] CALL, EXPR isinf_double(x) [L135] __int32_t hx, lx; [L137] ieee_double_shape_type ew_u; [L138] ew_u.value = (x) [L139] EXPR ew_u.parts.msw [L139] (hx) = ew_u.parts.msw [L140] EXPR ew_u.parts.lsw [L140] (lx) = ew_u.parts.lsw [L142] hx &= 0x7fffffff [L143] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L144] hx = 0x7ff00000 - hx [L145] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L159] RET, EXPR isinf_double(x) [L159] COND TRUE !isinf_double(x) [L160] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0834.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 65 SDtfs, 8 SDslu, 53 SDs, 0 SdLazy, 68 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred 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, 0.8s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 3250 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...