/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_0670.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 14:26:01,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 14:26:01,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 14:26:01,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 14:26:01,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 14:26:01,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 14:26:01,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 14:26:01,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 14:26:01,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 14:26:01,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 14:26:01,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 14:26:01,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 14:26:01,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 14:26:01,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 14:26:01,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 14:26:01,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 14:26:01,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 14:26:01,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 14:26:01,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 14:26:01,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 14:26:01,545 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 14:26:01,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 14:26:01,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 14:26:01,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 14:26:01,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 14:26:01,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 14:26:01,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 14:26:01,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 14:26:01,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 14:26:01,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 14:26:01,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 14:26:01,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 14:26:01,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 14:26:01,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 14:26:01,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 14:26:01,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 14:26:01,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 14:26:01,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 14:26:01,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 14:26:01,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 14:26:01,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 14:26:01,583 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 14:26:01,632 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 14:26:01,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 14:26:01,637 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 14:26:01,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 14:26:01,637 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 14:26:01,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 14:26:01,638 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 14:26:01,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 14:26:01,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 14:26:01,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 14:26:01,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 14:26:01,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 14:26:01,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 14:26:01,640 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 14:26:01,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 14:26:01,641 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 14:26:01,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 14:26:01,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 14:26:01,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 14:26:01,642 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 14:26:01,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 14:26:01,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:26:01,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 14:26:01,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 14:26:01,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 14:26:01,643 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 14:26:01,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 14:26:01,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 14:26:01,644 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 14:26:01,644 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 14:26:02,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 14:26:02,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 14:26:02,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 14:26:02,213 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 14:26:02,214 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 14:26:02,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0670.c [2020-10-28 14:26:02,298 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cebdf15b8/e40c157384d44bd8ac79c306fe9f002f/FLAG053a5b9b3 [2020-10-28 14:26:02,876 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 14:26:02,877 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0670.c [2020-10-28 14:26:02,898 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cebdf15b8/e40c157384d44bd8ac79c306fe9f002f/FLAG053a5b9b3 [2020-10-28 14:26:03,237 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cebdf15b8/e40c157384d44bd8ac79c306fe9f002f [2020-10-28 14:26:03,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 14:26:03,247 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 14:26:03,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 14:26:03,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 14:26:03,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 14:26:03,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:26:03" (1/1) ... [2020-10-28 14:26:03,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3105449a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:03, skipping insertion in model container [2020-10-28 14:26:03,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:26:03" (1/1) ... [2020-10-28 14:26:03,269 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 14:26:03,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 14:26:03,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:26:03,571 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 14:26:03,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:26:03,695 INFO L208 MainTranslator]: Completed translation [2020-10-28 14:26:03,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:03 WrapperNode [2020-10-28 14:26:03,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 14:26:03,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 14:26:03,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 14:26:03,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 14:26:03,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:03" (1/1) ... [2020-10-28 14:26:03,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:03" (1/1) ... [2020-10-28 14:26:03,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:03" (1/1) ... [2020-10-28 14:26:03,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:03" (1/1) ... [2020-10-28 14:26:03,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:03" (1/1) ... [2020-10-28 14:26:03,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:03" (1/1) ... [2020-10-28 14:26:03,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:03" (1/1) ... [2020-10-28 14:26:03,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 14:26:03,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 14:26:03,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 14:26:03,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 14:26:03,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:03" (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 14:26:03,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 14:26:03,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 14:26:03,847 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 14:26:03,847 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-28 14:26:03,847 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-28 14:26:03,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-28 14:26:03,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-28 14:26:03,848 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 14:26:03,848 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 14:26:03,848 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 14:26:03,848 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 14:26:03,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 14:26:03,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-28 14:26:03,849 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-28 14:26:03,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-28 14:26:03,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 14:26:03,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 14:26:03,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 14:26:03,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-28 14:26:03,849 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-28 14:26:03,850 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-28 14:26:03,850 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-28 14:26:03,850 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 14:26:03,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 14:26:03,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 14:26:03,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-28 14:26:03,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 14:26:04,803 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 14:26:04,803 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-28 14:26:04,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:26:04 BoogieIcfgContainer [2020-10-28 14:26:04,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 14:26:04,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 14:26:04,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 14:26:04,813 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 14:26:04,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 02:26:03" (1/3) ... [2020-10-28 14:26:04,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697b603e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:26:04, skipping insertion in model container [2020-10-28 14:26:04,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:03" (2/3) ... [2020-10-28 14:26:04,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697b603e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:26:04, skipping insertion in model container [2020-10-28 14:26:04,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:26:04" (3/3) ... [2020-10-28 14:26:04,818 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0670.c [2020-10-28 14:26:04,832 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 14:26:04,837 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 14:26:04,851 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 14:26:04,887 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 14:26:04,887 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 14:26:04,887 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 14:26:04,888 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 14:26:04,888 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 14:26:04,888 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 14:26:04,888 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 14:26:04,888 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 14:26:04,908 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2020-10-28 14:26:04,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-28 14:26:04,917 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:26:04,919 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:26:04,919 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:26:04,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:26:04,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1404832893, now seen corresponding path program 1 times [2020-10-28 14:26:04,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:26:04,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1667329146] [2020-10-28 14:26:04,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:26:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:05,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:05,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:05,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:05,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 14:26:05,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:26:05,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 437 [2020-10-28 14:26:05,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:05,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:05,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:05,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-28 14:26:05,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:05,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 14:26:05,777 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-28 14:26:05,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:26:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:05,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:05,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:05,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:26:05,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:26:05,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-28 14:26:05,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:05,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:05,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:05,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:26:05,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:05,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:26:05,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:26:05,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:05,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:05,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:05,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:26:05,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:26:05,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 14:26:05,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:05,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:05,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:05,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:26:05,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:05,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:26:05,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 14:26:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:05,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:05,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:05,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:05,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 14:26:05,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:26:05,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 14:26:05,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:05,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:05,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:05,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 14:26:05,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:05,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:26:05,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 14:26:05,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:05,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:05,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:05,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:26:05,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:26:05,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 14:26:05,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:05,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:05,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:05,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 14:26:05,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:05,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:26:06,010 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-28 14:26:06,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1667329146] [2020-10-28 14:26:06,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:26:06,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 14:26:06,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645075991] [2020-10-28 14:26:06,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 14:26:06,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:26:06,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 14:26:06,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 14:26:06,041 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 4 states. [2020-10-28 14:26:06,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:26:06,563 INFO L93 Difference]: Finished difference Result 220 states and 341 transitions. [2020-10-28 14:26:06,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 14:26:06,566 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-10-28 14:26:06,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:26:06,580 INFO L225 Difference]: With dead ends: 220 [2020-10-28 14:26:06,580 INFO L226 Difference]: Without dead ends: 109 [2020-10-28 14:26:06,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 14:26:06,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-28 14:26:06,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-28 14:26:06,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-28 14:26:06,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 151 transitions. [2020-10-28 14:26:06,655 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 151 transitions. Word has length 31 [2020-10-28 14:26:06,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:26:06,657 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 151 transitions. [2020-10-28 14:26:06,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 14:26:06,657 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 151 transitions. [2020-10-28 14:26:06,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-28 14:26:06,661 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:26:06,661 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:26:06,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 14:26:06,661 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:26:06,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:26:06,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1982181786, now seen corresponding path program 1 times [2020-10-28 14:26:06,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:26:06,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1105267713] [2020-10-28 14:26:06,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:26:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 14:26:06,764 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 14:26:06,765 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 14:26:06,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 14:26:06,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 02:26:06 BoogieIcfgContainer [2020-10-28 14:26:06,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 14:26:06,793 INFO L168 Benchmark]: Toolchain (without parser) took 3549.10 ms. Allocated memory was 154.1 MB in the beginning and 192.9 MB in the end (delta: 38.8 MB). Free memory was 128.3 MB in the beginning and 77.8 MB in the end (delta: 50.5 MB). Peak memory consumption was 89.6 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:06,793 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 154.1 MB. Free memory is still 126.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 14:26:06,794 INFO L168 Benchmark]: CACSL2BoogieTranslator took 446.93 ms. Allocated memory is still 154.1 MB. Free memory was 127.6 MB in the beginning and 113.2 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:06,795 INFO L168 Benchmark]: Boogie Preprocessor took 77.47 ms. Allocated memory is still 154.1 MB. Free memory was 113.2 MB in the beginning and 110.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:06,796 INFO L168 Benchmark]: RCFGBuilder took 1031.27 ms. Allocated memory is still 154.1 MB. Free memory was 110.1 MB in the beginning and 102.5 MB in the end (delta: 7.6 MB). Peak memory consumption was 15.1 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:06,797 INFO L168 Benchmark]: TraceAbstraction took 1981.90 ms. Allocated memory was 154.1 MB in the beginning and 192.9 MB in the end (delta: 38.8 MB). Free memory was 102.0 MB in the beginning and 77.8 MB in the end (delta: 24.2 MB). Peak memory consumption was 63.0 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:06,801 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 154.1 MB. Free memory is still 126.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 446.93 ms. Allocated memory is still 154.1 MB. Free memory was 127.6 MB in the beginning and 113.2 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 77.47 ms. Allocated memory is still 154.1 MB. Free memory was 113.2 MB in the beginning and 110.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1031.27 ms. Allocated memory is still 154.1 MB. Free memory was 110.1 MB in the beginning and 102.5 MB in the end (delta: 7.6 MB). Peak memory consumption was 15.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1981.90 ms. Allocated memory was 154.1 MB in the beginning and 192.9 MB in the end (delta: 38.8 MB). Free memory was 102.0 MB in the beginning and 77.8 MB in the end (delta: 24.2 MB). Peak memory consumption was 63.0 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 54, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 247. 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; [L255] double x = __VERIFIER_nondet_double(); [L256] double y = __VERIFIER_nondet_double(); [L258] CALL, EXPR isnan_double(x) [L247] return x != x; [L258] RET, EXPR isnan_double(x) [L258] isnan_double(x) || isnan_double(y) [L258] COND TRUE isnan_double(x) || isnan_double(y) [L260] 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; [L260] RET, EXPR __ieee754_atan2(y, x) [L260] double res = __ieee754_atan2(y, x); [L263] CALL, EXPR isnan_double(res) [L247] return x != x; [L263] RET, EXPR isnan_double(res) [L263] COND TRUE !isnan_double(res) [L264] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0670.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 117 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 151 SDtfs, 30 SDslu, 125 SDs, 0 SdLazy, 143 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 3420 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 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...