/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_0680b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 14:26:06,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 14:26:06,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 14:26:06,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 14:26:06,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 14:26:06,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 14:26:06,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 14:26:06,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 14:26:06,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 14:26:06,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 14:26:06,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 14:26:06,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 14:26:06,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 14:26:06,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 14:26:06,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 14:26:06,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 14:26:06,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 14:26:06,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 14:26:06,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 14:26:06,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 14:26:06,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 14:26:06,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 14:26:06,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 14:26:06,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 14:26:06,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 14:26:06,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 14:26:06,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 14:26:06,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 14:26:06,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 14:26:06,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 14:26:06,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 14:26:06,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 14:26:06,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 14:26:06,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 14:26:06,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 14:26:06,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 14:26:06,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 14:26:06,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 14:26:06,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 14:26:06,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 14:26:06,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 14:26:06,143 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 [2020-10-28 14:26:06,171 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 14:26:06,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 14:26:06,173 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 14:26:06,173 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 14:26:06,174 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 14:26:06,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 14:26:06,174 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 14:26:06,174 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 14:26:06,175 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 14:26:06,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 14:26:06,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 14:26:06,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 14:26:06,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 14:26:06,176 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 14:26:06,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 14:26:06,176 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 14:26:06,176 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 14:26:06,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 14:26:06,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 14:26:06,177 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 14:26:06,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 14:26:06,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:26:06,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 14:26:06,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 14:26:06,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 14:26:06,178 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 14:26:06,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 14:26:06,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 14:26:06,179 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 14:26:06,179 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 14:26:06,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 14:26:06,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 14:26:06,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 14:26:06,624 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 14:26:06,625 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 14:26:06,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0680b.c [2020-10-28 14:26:06,709 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ea3a8652/ff607413ddab444a897d63e3197e8be9/FLAG3e6bde334 [2020-10-28 14:26:07,422 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 14:26:07,423 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0680b.c [2020-10-28 14:26:07,440 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ea3a8652/ff607413ddab444a897d63e3197e8be9/FLAG3e6bde334 [2020-10-28 14:26:07,714 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ea3a8652/ff607413ddab444a897d63e3197e8be9 [2020-10-28 14:26:07,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 14:26:07,733 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 14:26:07,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 14:26:07,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 14:26:07,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 14:26:07,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:26:07" (1/1) ... [2020-10-28 14:26:07,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a12fb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:07, skipping insertion in model container [2020-10-28 14:26:07,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:26:07" (1/1) ... [2020-10-28 14:26:07,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 14:26:07,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 14:26:08,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:26:08,171 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 14:26:08,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:26:08,327 INFO L208 MainTranslator]: Completed translation [2020-10-28 14:26:08,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:08 WrapperNode [2020-10-28 14:26:08,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 14:26:08,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 14:26:08,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 14:26:08,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 14:26:08,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:08" (1/1) ... [2020-10-28 14:26:08,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:08" (1/1) ... [2020-10-28 14:26:08,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:08" (1/1) ... [2020-10-28 14:26:08,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:08" (1/1) ... [2020-10-28 14:26:08,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:08" (1/1) ... [2020-10-28 14:26:08,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:08" (1/1) ... [2020-10-28 14:26:08,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:08" (1/1) ... [2020-10-28 14:26:08,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 14:26:08,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 14:26:08,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 14:26:08,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 14:26:08,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:08" (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 [2020-10-28 14:26:08,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 14:26:08,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 14:26:08,537 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 14:26:08,537 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-28 14:26:08,537 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-28 14:26:08,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-28 14:26:08,538 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 14:26:08,538 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 14:26:08,538 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 14:26:08,538 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 14:26:08,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 14:26:08,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-28 14:26:08,539 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-28 14:26:08,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-28 14:26:08,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 14:26:08,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 14:26:08,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 14:26:08,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-28 14:26:08,540 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-28 14:26:08,540 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-28 14:26:08,540 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 14:26:08,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 14:26:08,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 14:26:08,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-28 14:26:08,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 14:26:09,549 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 14:26:09,550 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-28 14:26:09,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:26:09 BoogieIcfgContainer [2020-10-28 14:26:09,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 14:26:09,554 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 14:26:09,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 14:26:09,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 14:26:09,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 02:26:07" (1/3) ... [2020-10-28 14:26:09,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7927b584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:26:09, skipping insertion in model container [2020-10-28 14:26:09,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:08" (2/3) ... [2020-10-28 14:26:09,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7927b584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:26:09, skipping insertion in model container [2020-10-28 14:26:09,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:26:09" (3/3) ... [2020-10-28 14:26:09,562 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0680b.c [2020-10-28 14:26:09,575 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 14:26:09,581 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 14:26:09,597 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 14:26:09,640 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 14:26:09,640 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 14:26:09,640 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 14:26:09,640 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 14:26:09,640 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 14:26:09,640 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 14:26:09,640 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 14:26:09,641 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 14:26:09,659 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2020-10-28 14:26:09,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-28 14:26:09,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:26:09,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:26:09,667 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:26:09,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:26:09,674 INFO L82 PathProgramCache]: Analyzing trace with hash -7339331, now seen corresponding path program 1 times [2020-10-28 14:26:09,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:26:09,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998401141] [2020-10-28 14:26:09,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:26:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:09,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:10,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:10,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:10,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 14:26:10,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:26:10,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 385 [2020-10-28 14:26:10,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:10,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:10,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:10,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 14:26:10,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:10,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 14:26:10,451 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-28 14:26:10,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:26:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:10,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:10,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:10,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:26:10,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:26:10,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 14:26:10,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:10,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:10,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:10,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:26:10,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:10,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:26:10,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:26:10,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:10,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:10,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:10,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:10,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 14:26:10,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:26:10,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 14:26:10,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:10,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:10,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:10,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 14:26:10,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:10,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:26:10,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 14:26:10,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998401141] [2020-10-28 14:26:10,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:26:10,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 14:26:10,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495577624] [2020-10-28 14:26:10,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 14:26:10,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:26:10,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 14:26:10,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 14:26:10,623 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 4 states. [2020-10-28 14:26:10,846 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-28 14:26:11,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:26:11,415 INFO L93 Difference]: Finished difference Result 199 states and 316 transitions. [2020-10-28 14:26:11,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 14:26:11,417 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-28 14:26:11,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:26:11,429 INFO L225 Difference]: With dead ends: 199 [2020-10-28 14:26:11,430 INFO L226 Difference]: Without dead ends: 98 [2020-10-28 14:26:11,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 14:26:11,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-28 14:26:11,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-28 14:26:11,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-28 14:26:11,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2020-10-28 14:26:11,561 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2020-10-28 14:26:11,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:26:11,562 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2020-10-28 14:26:11,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 14:26:11,562 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2020-10-28 14:26:11,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-28 14:26:11,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:26:11,564 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] [2020-10-28 14:26:11,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 14:26:11,564 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:26:11,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:26:11,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1887591124, now seen corresponding path program 1 times [2020-10-28 14:26:11,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:26:11,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [842168533] [2020-10-28 14:26:11,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:26:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 14:26:11,647 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 14:26:11,647 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 14:26:11,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 14:26:11,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 02:26:11 BoogieIcfgContainer [2020-10-28 14:26:11,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 14:26:11,706 INFO L168 Benchmark]: Toolchain (without parser) took 3978.49 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 73.5 MB in the end (delta: 53.2 MB). Peak memory consumption was 54.5 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:11,710 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory was 99.4 MB in the beginning and 99.3 MB in the end (delta: 65.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 14:26:11,711 INFO L168 Benchmark]: CACSL2BoogieTranslator took 592.84 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 111.1 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:11,713 INFO L168 Benchmark]: Boogie Preprocessor took 112.95 ms. Allocated memory is still 151.0 MB. Free memory was 111.1 MB in the beginning and 108.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:11,714 INFO L168 Benchmark]: RCFGBuilder took 1108.78 ms. Allocated memory is still 151.0 MB. Free memory was 108.1 MB in the beginning and 99.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 9.9 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:11,715 INFO L168 Benchmark]: TraceAbstraction took 2150.93 ms. Allocated memory is still 151.0 MB. Free memory was 99.3 MB in the beginning and 73.5 MB in the end (delta: 25.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:11,720 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory was 99.4 MB in the beginning and 99.3 MB in the end (delta: 65.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 592.84 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 111.1 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 112.95 ms. Allocated memory is still 151.0 MB. Free memory was 111.1 MB in the beginning and 108.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1108.78 ms. Allocated memory is still 151.0 MB. Free memory was 108.1 MB in the beginning and 99.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 9.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2150.93 ms. Allocated memory is still 151.0 MB. Free memory was 99.3 MB in the beginning and 73.5 MB in the end (delta: 25.9 MB). Peak memory consumption was 26.8 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 164, overapproximation of someUnaryDOUBLEoperation at line 253, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 257. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L253] double x = -0.0; [L254] double y = 0.0; [L255] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; [L255] RET, EXPR __ieee754_atan2(y, x) [L255] double res = __ieee754_atan2(y, x); [L257] COND TRUE res != pi [L258] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0680b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 137 SDtfs, 10 SDslu, 125 SDs, 0 SdLazy, 135 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred 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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 1836 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...