/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 09:07:26,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:07:26,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:07:26,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:07:26,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:07:26,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:07:26,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:07:26,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:07:26,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:07:26,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:07:26,121 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:07:26,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:07:26,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:07:26,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:07:26,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:07:26,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:07:26,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:07:26,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:07:26,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:07:26,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:07:26,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:07:26,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:07:26,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:07:26,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:07:26,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:07:26,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:07:26,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:07:26,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:07:26,166 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:07:26,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:07:26,168 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:07:26,169 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:07:26,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:07:26,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:07:26,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:07:26,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:07:26,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:07:26,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:07:26,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:07:26,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:07:26,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:07:26,178 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 09:07:26,232 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:07:26,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:07:26,238 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:07:26,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:07:26,238 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:07:26,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:07:26,239 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:07:26,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:07:26,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:07:26,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:07:26,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:07:26,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:07:26,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:07:26,241 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:07:26,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:07:26,241 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:07:26,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:07:26,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:07:26,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:07:26,242 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:07:26,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:07:26,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:07:26,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:07:26,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:07:26,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:07:26,244 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:07:26,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:07:26,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:07:26,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:07:26,244 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:07:26,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:07:26,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:07:26,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:07:26,718 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:07:26,718 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:07:26,720 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122b.c [2020-10-29 09:07:26,830 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff6dba23f/37d3a3ced9cc4e0d92bf8bfab43b0968/FLAG4011ea103 [2020-10-29 09:07:27,543 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:07:27,545 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1122b.c [2020-10-29 09:07:27,558 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff6dba23f/37d3a3ced9cc4e0d92bf8bfab43b0968/FLAG4011ea103 [2020-10-29 09:07:27,890 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff6dba23f/37d3a3ced9cc4e0d92bf8bfab43b0968 [2020-10-29 09:07:27,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:07:27,903 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:07:27,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:07:27,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:07:27,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:07:27,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:07:27" (1/1) ... [2020-10-29 09:07:27,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b26c2ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:27, skipping insertion in model container [2020-10-29 09:07:27,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:07:27" (1/1) ... [2020-10-29 09:07:27,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:07:27,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:07:28,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:07:28,252 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:07:28,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:07:28,349 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:07:28,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:28 WrapperNode [2020-10-29 09:07:28,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:07:28,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:07:28,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:07:28,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:07:28,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:28" (1/1) ... [2020-10-29 09:07:28,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:28" (1/1) ... [2020-10-29 09:07:28,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:28" (1/1) ... [2020-10-29 09:07:28,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:28" (1/1) ... [2020-10-29 09:07:28,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:28" (1/1) ... [2020-10-29 09:07:28,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:28" (1/1) ... [2020-10-29 09:07:28,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:28" (1/1) ... [2020-10-29 09:07:28,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:07:28,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:07:28,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:07:28,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:07:28,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:07:28,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:07:28,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:07:28,495 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:07:28,495 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-29 09:07:28,495 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-10-29 09:07:28,496 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:07:28,496 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:07:28,496 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:07:28,497 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:07:28,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:07:28,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-29 09:07:28,498 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-29 09:07:28,498 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-10-29 09:07:28,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-29 09:07:28,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:07:28,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:07:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-29 09:07:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:07:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:07:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:07:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:07:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-29 09:07:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:07:29,341 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:07:29,341 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-29 09:07:29,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:07:29 BoogieIcfgContainer [2020-10-29 09:07:29,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:07:29,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:07:29,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:07:29,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:07:29,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:07:27" (1/3) ... [2020-10-29 09:07:29,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fd0aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:07:29, skipping insertion in model container [2020-10-29 09:07:29,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:28" (2/3) ... [2020-10-29 09:07:29,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fd0aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:07:29, skipping insertion in model container [2020-10-29 09:07:29,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:07:29" (3/3) ... [2020-10-29 09:07:29,353 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122b.c [2020-10-29 09:07:29,364 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:07:29,368 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:07:29,386 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:07:29,431 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:07:29,431 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:07:29,431 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:07:29,431 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:07:29,432 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:07:29,432 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:07:29,433 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:07:29,433 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:07:29,450 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-10-29 09:07:29,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-29 09:07:29,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:07:29,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:07:29,458 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:07:29,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:07:29,463 INFO L82 PathProgramCache]: Analyzing trace with hash 980170601, now seen corresponding path program 1 times [2020-10-29 09:07:29,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:07:29,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1892249322] [2020-10-29 09:07:29,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:07:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:07:29,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:07:29,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:07:29,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:07:29,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-29 09:07:29,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:07:29,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-29 09:07:29,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:07:29,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:07:29,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:07:29,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 09:07:29,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:07:29,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 09:07:30,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:07:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:07:30,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:07:30,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:07:30,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:07:30,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:07:30,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 09:07:30,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:07:30,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:07:30,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:07:30,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:07:30,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:07:30,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:07:30,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:07:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:07:30,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:07:30,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:07:30,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:07:30,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 09:07:30,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:07:30,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 09:07:30,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:07:30,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:07:30,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:07:30,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-29 09:07:30,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:07:30,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:07:30,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 09:07:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:07:30,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:07:30,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:07:30,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:07:30,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:07:30,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 09:07:30,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:07:30,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:07:30,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:07:30,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:07:30,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:07:30,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:07:30,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:07:30,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1892249322] [2020-10-29 09:07:30,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:07:30,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 09:07:30,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161813904] [2020-10-29 09:07:30,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 09:07:30,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:07:30,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 09:07:30,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 09:07:30,163 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 4 states. [2020-10-29 09:07:30,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:07:30,489 INFO L93 Difference]: Finished difference Result 133 states and 216 transitions. [2020-10-29 09:07:30,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-29 09:07:30,491 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-10-29 09:07:30,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:07:30,501 INFO L225 Difference]: With dead ends: 133 [2020-10-29 09:07:30,502 INFO L226 Difference]: Without dead ends: 65 [2020-10-29 09:07:30,505 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 09:07:30,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-29 09:07:30,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-29 09:07:30,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-29 09:07:30,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 91 transitions. [2020-10-29 09:07:30,554 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 91 transitions. Word has length 23 [2020-10-29 09:07:30,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:07:30,554 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 91 transitions. [2020-10-29 09:07:30,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 09:07:30,555 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 91 transitions. [2020-10-29 09:07:30,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-29 09:07:30,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:07:30,556 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:07:30,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:07:30,557 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:07:30,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:07:30,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1159049452, now seen corresponding path program 1 times [2020-10-29 09:07:30,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:07:30,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231351657] [2020-10-29 09:07:30,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:07:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 09:07:30,623 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 09:07:30,623 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 09:07:30,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 09:07:30,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 09:07:30 BoogieIcfgContainer [2020-10-29 09:07:30,646 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 09:07:30,648 INFO L168 Benchmark]: Toolchain (without parser) took 2749.76 ms. Allocated memory was 125.8 MB in the beginning and 157.3 MB in the end (delta: 31.5 MB). Free memory was 100.9 MB in the beginning and 83.4 MB in the end (delta: 17.4 MB). Peak memory consumption was 49.9 MB. Max. memory is 8.0 GB. [2020-10-29 09:07:30,649 INFO L168 Benchmark]: CDTParser took 0.65 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. [2020-10-29 09:07:30,650 INFO L168 Benchmark]: CACSL2BoogieTranslator took 442.59 ms. Allocated memory is still 125.8 MB. Free memory was 100.2 MB in the beginning and 87.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-29 09:07:30,651 INFO L168 Benchmark]: Boogie Preprocessor took 70.15 ms. Allocated memory is still 125.8 MB. Free memory was 87.0 MB in the beginning and 84.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-29 09:07:30,652 INFO L168 Benchmark]: RCFGBuilder took 921.98 ms. Allocated memory was 125.8 MB in the beginning and 157.3 MB in the end (delta: 31.5 MB). Free memory was 84.7 MB in the beginning and 118.9 MB in the end (delta: -34.2 MB). Peak memory consumption was 17.1 MB. Max. memory is 8.0 GB. [2020-10-29 09:07:30,653 INFO L168 Benchmark]: TraceAbstraction took 1300.29 ms. Allocated memory is still 157.3 MB. Free memory was 118.4 MB in the beginning and 83.4 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 8.0 GB. [2020-10-29 09:07:30,656 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 442.59 ms. Allocated memory is still 125.8 MB. Free memory was 100.2 MB in the beginning and 87.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 70.15 ms. Allocated memory is still 125.8 MB. Free memory was 87.0 MB in the beginning and 84.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 921.98 ms. Allocated memory was 125.8 MB in the beginning and 157.3 MB in the end (delta: 31.5 MB). Free memory was 84.7 MB in the beginning and 118.9 MB in the end (delta: -34.2 MB). Peak memory consumption was 17.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1300.29 ms. Allocated memory is still 157.3 MB. Free memory was 118.4 MB in the beginning and 83.4 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L172] double x = -1.0 / 0.0; [L173] double y = __VERIFIER_nondet_double(); [L174] CALL, EXPR fmod_double(x, y) [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); [L174] RET, EXPR fmod_double(x, y) [L174] double res = fmod_double(x, y); [L177] CALL, EXPR isnan_double(res) [L18] return x != x; [L177] RET, EXPR isnan_double(res) [L177] COND TRUE !isnan_double(res) [L178] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1122b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 93 SDtfs, 10 SDslu, 78 SDs, 0 SdLazy, 94 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 1606 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...