/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_0680b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 09:06:29,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:06:29,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:06:29,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:06:29,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:06:29,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:06:29,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:06:29,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:06:29,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:06:29,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:06:29,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:06:29,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:06:29,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:06:29,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:06:29,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:06:29,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:06:29,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:06:29,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:06:29,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:06:29,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:06:29,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:06:29,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:06:29,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:06:29,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:06:29,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:06:29,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:06:29,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:06:29,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:06:29,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:06:29,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:06:29,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:06:29,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:06:29,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:06:29,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:06:29,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:06:29,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:06:29,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:06:29,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:06:29,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:06:29,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:06:29,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:06:29,746 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 09:06:29,809 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:06:29,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:06:29,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:06:29,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:06:29,812 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:06:29,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:06:29,813 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:06:29,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:06:29,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:06:29,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:06:29,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:06:29,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:06:29,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:06:29,816 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:06:29,816 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:06:29,817 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:06:29,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:06:29,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:06:29,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:06:29,818 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:06:29,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:06:29,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:06:29,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:06:29,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:06:29,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:06:29,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:06:29,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:06:29,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:06:29,820 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:06:29,821 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:06:30,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:06:30,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:06:30,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:06:30,266 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:06:30,266 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:06:30,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0680b.c [2020-10-29 09:06:30,342 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df6498654/328291870a3f43648c5a1878a3bbdc9f/FLAGe27a557fc [2020-10-29 09:06:30,957 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:06:30,958 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0680b.c [2020-10-29 09:06:30,969 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df6498654/328291870a3f43648c5a1878a3bbdc9f/FLAGe27a557fc [2020-10-29 09:06:31,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df6498654/328291870a3f43648c5a1878a3bbdc9f [2020-10-29 09:06:31,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:06:31,333 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:06:31,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:06:31,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:06:31,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:06:31,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:06:31" (1/1) ... [2020-10-29 09:06:31,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f77d8bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:31, skipping insertion in model container [2020-10-29 09:06:31,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:06:31" (1/1) ... [2020-10-29 09:06:31,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:06:31,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:06:31,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:06:31,764 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:06:31,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:06:31,850 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:06:31,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:31 WrapperNode [2020-10-29 09:06:31,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:06:31,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:06:31,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:06:31,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:06:31,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:31" (1/1) ... [2020-10-29 09:06:31,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:31" (1/1) ... [2020-10-29 09:06:31,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:31" (1/1) ... [2020-10-29 09:06:31,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:31" (1/1) ... [2020-10-29 09:06:31,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:31" (1/1) ... [2020-10-29 09:06:31,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:31" (1/1) ... [2020-10-29 09:06:31,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:31" (1/1) ... [2020-10-29 09:06:31,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:06:31,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:06:31,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:06:31,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:06:31,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:31" (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 09:06:32,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:06:32,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:06:32,023 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:06:32,023 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-29 09:06:32,023 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-29 09:06:32,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-29 09:06:32,024 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:06:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:06:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:06:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:06:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:06:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-29 09:06:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-29 09:06:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-29 09:06:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:06:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:06:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:06:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-29 09:06:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-29 09:06:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-29 09:06:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:06:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:06:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:06:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-29 09:06:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:06:32,728 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:06:32,728 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-29 09:06:32,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:06:32 BoogieIcfgContainer [2020-10-29 09:06:32,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:06:32,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:06:32,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:06:32,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:06:32,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:06:31" (1/3) ... [2020-10-29 09:06:32,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1593dc12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:06:32, skipping insertion in model container [2020-10-29 09:06:32,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:31" (2/3) ... [2020-10-29 09:06:32,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1593dc12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:06:32, skipping insertion in model container [2020-10-29 09:06:32,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:06:32" (3/3) ... [2020-10-29 09:06:32,739 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0680b.c [2020-10-29 09:06:32,751 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:06:32,756 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:06:32,768 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:06:32,796 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:06:32,796 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:06:32,796 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:06:32,797 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:06:32,797 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:06:32,797 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:06:32,797 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:06:32,797 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:06:32,816 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2020-10-29 09:06:32,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-29 09:06:32,823 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:06:32,824 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:06:32,824 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:06:32,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:06:32,831 INFO L82 PathProgramCache]: Analyzing trace with hash -7339331, now seen corresponding path program 1 times [2020-10-29 09:06:32,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:06:32,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1841107632] [2020-10-29 09:06:32,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:06:33,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:06:33,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:33,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:33,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:06:33,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 09:06:33,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:06:33,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-10-29 09:06:33,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:06:33,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:06:33,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:06:33,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-29 09:06:33,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:06:33,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-29 09:06:33,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:06:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:06:33,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:33,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:06:33,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:06:33,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:06:33,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 09:06:33,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:06:33,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:06:33,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:06:33,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:06:33,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:06:33,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:06:33,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:06:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:06:33,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:33,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:33,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:06:33,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 09:06:33,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:06:33,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 09:06:33,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:06:33,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:06:33,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:06:33,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 09:06:33,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:06:33,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:06:33,660 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 09:06:33,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1841107632] [2020-10-29 09:06:33,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:06:33,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 09:06:33,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606694624] [2020-10-29 09:06:33,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 09:06:33,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:06:33,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 09:06:33,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 09:06:33,688 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 4 states. [2020-10-29 09:06:34,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:06:34,160 INFO L93 Difference]: Finished difference Result 199 states and 316 transitions. [2020-10-29 09:06:34,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-29 09:06:34,162 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-29 09:06:34,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:06:34,173 INFO L225 Difference]: With dead ends: 199 [2020-10-29 09:06:34,173 INFO L226 Difference]: Without dead ends: 98 [2020-10-29 09:06:34,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 09:06:34,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-29 09:06:34,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-29 09:06:34,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-29 09:06:34,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2020-10-29 09:06:34,234 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2020-10-29 09:06:34,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:06:34,235 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2020-10-29 09:06:34,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 09:06:34,235 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2020-10-29 09:06:34,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-29 09:06:34,236 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:06:34,236 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] [2020-10-29 09:06:34,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:06:34,237 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:06:34,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:06:34,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1887591124, now seen corresponding path program 1 times [2020-10-29 09:06:34,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:06:34,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [538248201] [2020-10-29 09:06:34,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:06:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 09:06:34,304 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 09:06:34,305 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 09:06:34,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 09:06:34,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 09:06:34 BoogieIcfgContainer [2020-10-29 09:06:34,328 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 09:06:34,330 INFO L168 Benchmark]: Toolchain (without parser) took 3001.83 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 125.3 MB in the beginning and 89.3 MB in the end (delta: 36.0 MB). Peak memory consumption was 71.4 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:34,331 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:06:34,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 512.88 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 110.2 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:34,333 INFO L168 Benchmark]: Boogie Preprocessor took 83.07 ms. Allocated memory is still 151.0 MB. Free memory was 110.2 MB in the beginning and 107.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:34,334 INFO L168 Benchmark]: RCFGBuilder took 794.55 ms. Allocated memory is still 151.0 MB. Free memory was 107.1 MB in the beginning and 101.2 MB in the end (delta: 5.8 MB). Peak memory consumption was 15.4 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:34,335 INFO L168 Benchmark]: TraceAbstraction took 1596.07 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 100.7 MB in the beginning and 89.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 46.6 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:34,338 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 512.88 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 110.2 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 83.07 ms. Allocated memory is still 151.0 MB. Free memory was 110.2 MB in the beginning and 107.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 794.55 ms. Allocated memory is still 151.0 MB. Free memory was 107.1 MB in the beginning and 101.2 MB in the end (delta: 5.8 MB). Peak memory consumption was 15.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1596.07 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 100.7 MB in the beginning and 89.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 46.6 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: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, 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, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s 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...