/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_0683b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 14:26:11,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 14:26:11,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 14:26:11,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 14:26:11,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 14:26:11,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 14:26:11,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 14:26:11,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 14:26:11,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 14:26:11,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 14:26:11,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 14:26:11,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 14:26:11,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 14:26:11,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 14:26:11,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 14:26:11,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 14:26:11,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 14:26:11,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 14:26:11,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 14:26:11,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 14:26:11,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 14:26:11,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 14:26:11,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 14:26:11,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 14:26:11,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 14:26:11,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 14:26:11,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 14:26:11,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 14:26:11,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 14:26:11,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 14:26:11,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 14:26:11,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 14:26:11,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 14:26:11,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 14:26:11,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 14:26:11,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 14:26:11,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 14:26:11,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 14:26:11,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 14:26:11,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 14:26:11,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 14:26:11,861 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 14:26:11,909 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 14:26:11,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 14:26:11,914 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 14:26:11,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 14:26:11,915 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 14:26:11,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 14:26:11,916 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 14:26:11,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 14:26:11,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 14:26:11,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 14:26:11,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 14:26:11,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 14:26:11,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 14:26:11,918 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 14:26:11,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 14:26:11,918 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 14:26:11,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 14:26:11,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 14:26:11,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 14:26:11,919 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 14:26:11,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 14:26:11,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:26:11,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 14:26:11,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 14:26:11,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 14:26:11,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 14:26:11,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 14:26:11,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 14:26:11,921 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 14:26:11,921 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 14:26:12,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 14:26:12,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 14:26:12,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 14:26:12,403 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 14:26:12,403 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 14:26:12,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0683b.c [2020-10-28 14:26:12,483 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f804d486f/84e684f063f34af5816e4e578b52e21d/FLAG376f22089 [2020-10-28 14:26:13,034 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 14:26:13,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0683b.c [2020-10-28 14:26:13,045 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f804d486f/84e684f063f34af5816e4e578b52e21d/FLAG376f22089 [2020-10-28 14:26:13,392 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f804d486f/84e684f063f34af5816e4e578b52e21d [2020-10-28 14:26:13,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 14:26:13,403 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 14:26:13,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 14:26:13,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 14:26:13,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 14:26:13,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:26:13" (1/1) ... [2020-10-28 14:26:13,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13743b17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:13, skipping insertion in model container [2020-10-28 14:26:13,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:26:13" (1/1) ... [2020-10-28 14:26:13,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 14:26:13,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 14:26:13,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:26:13,843 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 14:26:13,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:26:13,987 INFO L208 MainTranslator]: Completed translation [2020-10-28 14:26:13,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:13 WrapperNode [2020-10-28 14:26:13,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 14:26:13,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 14:26:13,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 14:26:13,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 14:26:14,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:13" (1/1) ... [2020-10-28 14:26:14,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:13" (1/1) ... [2020-10-28 14:26:14,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:13" (1/1) ... [2020-10-28 14:26:14,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:13" (1/1) ... [2020-10-28 14:26:14,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:13" (1/1) ... [2020-10-28 14:26:14,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:13" (1/1) ... [2020-10-28 14:26:14,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:13" (1/1) ... [2020-10-28 14:26:14,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 14:26:14,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 14:26:14,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 14:26:14,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 14:26:14,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:13" (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 14:26:14,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 14:26:14,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 14:26:14,176 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 14:26:14,176 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-28 14:26:14,176 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-28 14:26:14,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-28 14:26:14,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-10-28 14:26:14,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-10-28 14:26:14,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-10-28 14:26:14,178 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 14:26:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 14:26:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 14:26:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 14:26:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 14:26:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-28 14:26:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-28 14:26:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-28 14:26:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 14:26:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 14:26:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 14:26:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-28 14:26:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-28 14:26:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-28 14:26:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-10-28 14:26:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-10-28 14:26:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-10-28 14:26:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 14:26:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 14:26:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 14:26:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-28 14:26:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 14:26:15,051 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 14:26:15,051 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-10-28 14:26:15,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:26:15 BoogieIcfgContainer [2020-10-28 14:26:15,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 14:26:15,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 14:26:15,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 14:26:15,060 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 14:26:15,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 02:26:13" (1/3) ... [2020-10-28 14:26:15,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ddd9586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:26:15, skipping insertion in model container [2020-10-28 14:26:15,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:13" (2/3) ... [2020-10-28 14:26:15,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ddd9586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:26:15, skipping insertion in model container [2020-10-28 14:26:15,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:26:15" (3/3) ... [2020-10-28 14:26:15,064 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683b.c [2020-10-28 14:26:15,075 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 14:26:15,080 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 14:26:15,092 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 14:26:15,119 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 14:26:15,120 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 14:26:15,120 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 14:26:15,120 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 14:26:15,120 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 14:26:15,120 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 14:26:15,120 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 14:26:15,120 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 14:26:15,141 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states. [2020-10-28 14:26:15,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-28 14:26:15,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:26:15,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:26:15,150 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:26:15,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:26:15,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1563664449, now seen corresponding path program 1 times [2020-10-28 14:26:15,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:26:15,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147008660] [2020-10-28 14:26:15,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:26:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:15,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:15,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:15,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:15,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:16,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:16,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 14:26:16,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 14:26:16,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 972 [2020-10-28 14:26:16,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:16,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:16,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:16,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-28 14:26:16,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:16,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 14:26:16,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:26:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:16,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:16,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:16,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:26:16,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:26:16,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 14:26:16,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:16,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:16,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:16,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:26:16,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:16,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:26:16,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:26:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:16,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:16,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:16,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:16,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:26:16,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:26:16,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 14:26:16,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:16,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:16,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:16,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:26:16,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:16,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:26:16,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 14:26:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:16,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:16,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:16,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:16,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 14:26:16,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:26:16,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 14:26:16,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:16,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:16,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:16,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 14:26:16,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:16,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:26:16,551 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 14:26:16,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147008660] [2020-10-28 14:26:16,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:26:16,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 14:26:16,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432232773] [2020-10-28 14:26:16,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 14:26:16,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:26:16,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 14:26:16,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 14:26:16,577 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 4 states. [2020-10-28 14:26:17,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:26:17,162 INFO L93 Difference]: Finished difference Result 255 states and 393 transitions. [2020-10-28 14:26:17,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 14:26:17,164 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-10-28 14:26:17,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:26:17,183 INFO L225 Difference]: With dead ends: 255 [2020-10-28 14:26:17,183 INFO L226 Difference]: Without dead ends: 125 [2020-10-28 14:26:17,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 14:26:17,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-28 14:26:17,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-10-28 14:26:17,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-28 14:26:17,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 166 transitions. [2020-10-28 14:26:17,258 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 166 transitions. Word has length 29 [2020-10-28 14:26:17,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:26:17,259 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 166 transitions. [2020-10-28 14:26:17,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 14:26:17,259 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 166 transitions. [2020-10-28 14:26:17,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-28 14:26:17,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:26:17,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:26:17,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 14:26:17,262 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:26:17,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:26:17,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1297905485, now seen corresponding path program 1 times [2020-10-28 14:26:17,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:26:17,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048487617] [2020-10-28 14:26:17,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:26:17,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:17,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:17,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:17,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-28 14:26:17,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:26:17,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-28 14:26:17,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:17,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:17,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 14:26:17,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-28 14:26:17,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 14:26:17,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:26:17,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:26:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:17,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:17,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:17,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:26:17,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:26:17,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-28 14:26:17,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:17,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:17,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:17,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:26:17,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:17,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:26:17,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:26:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:17,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:17,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:17,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 14:26:17,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:26:17,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 14:26:17,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:17,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:17,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:17,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:26:17,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:17,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:26:17,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 14:26:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:17,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:17,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:17,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 14:26:17,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:26:17,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 14:26:17,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:17,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:17,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:17,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 14:26:17,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:17,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:26:17,796 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 14:26:17,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048487617] [2020-10-28 14:26:17,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:26:17,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 14:26:17,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079034584] [2020-10-28 14:26:17,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 14:26:17,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:26:17,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 14:26:17,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 14:26:17,802 INFO L87 Difference]: Start difference. First operand 125 states and 166 transitions. Second operand 5 states. [2020-10-28 14:26:18,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:26:18,340 INFO L93 Difference]: Finished difference Result 227 states and 308 transitions. [2020-10-28 14:26:18,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 14:26:18,341 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-10-28 14:26:18,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:26:18,346 INFO L225 Difference]: With dead ends: 227 [2020-10-28 14:26:18,346 INFO L226 Difference]: Without dead ends: 125 [2020-10-28 14:26:18,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 14:26:18,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-28 14:26:18,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-10-28 14:26:18,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-28 14:26:18,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 165 transitions. [2020-10-28 14:26:18,378 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 165 transitions. Word has length 32 [2020-10-28 14:26:18,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:26:18,379 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 165 transitions. [2020-10-28 14:26:18,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 14:26:18,379 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 165 transitions. [2020-10-28 14:26:18,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-28 14:26:18,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:26:18,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:26:18,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 14:26:18,383 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:26:18,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:26:18,384 INFO L82 PathProgramCache]: Analyzing trace with hash -665724313, now seen corresponding path program 1 times [2020-10-28 14:26:18,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:26:18,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316455162] [2020-10-28 14:26:18,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:26:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 14:26:18,491 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 14:26:18,491 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 14:26:18,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 14:26:18,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 02:26:18 BoogieIcfgContainer [2020-10-28 14:26:18,520 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 14:26:18,522 INFO L168 Benchmark]: Toolchain (without parser) took 5123.38 ms. Allocated memory was 163.6 MB in the beginning and 197.1 MB in the end (delta: 33.6 MB). Free memory was 138.1 MB in the beginning and 170.8 MB in the end (delta: -32.7 MB). Peak memory consumption was 109.6 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:18,523 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 163.6 MB. Free memory is still 135.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 14:26:18,524 INFO L168 Benchmark]: CACSL2BoogieTranslator took 581.26 ms. Allocated memory is still 163.6 MB. Free memory was 137.4 MB in the beginning and 121.9 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:18,525 INFO L168 Benchmark]: Boogie Preprocessor took 92.82 ms. Allocated memory is still 163.6 MB. Free memory was 121.9 MB in the beginning and 118.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:18,526 INFO L168 Benchmark]: RCFGBuilder took 970.95 ms. Allocated memory is still 163.6 MB. Free memory was 118.5 MB in the beginning and 105.6 MB in the end (delta: 12.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:18,527 INFO L168 Benchmark]: TraceAbstraction took 3464.05 ms. Allocated memory was 163.6 MB in the beginning and 197.1 MB in the end (delta: 33.6 MB). Free memory was 105.1 MB in the beginning and 170.8 MB in the end (delta: -65.7 MB). Peak memory consumption was 77.5 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:18,530 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 163.6 MB. Free memory is still 135.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 581.26 ms. Allocated memory is still 163.6 MB. Free memory was 137.4 MB in the beginning and 121.9 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 92.82 ms. Allocated memory is still 163.6 MB. Free memory was 121.9 MB in the beginning and 118.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 970.95 ms. Allocated memory is still 163.6 MB. Free memory was 118.5 MB in the beginning and 105.6 MB in the end (delta: 12.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3464.05 ms. Allocated memory was 163.6 MB in the beginning and 197.1 MB in the end (delta: 33.6 MB). Free memory was 105.1 MB in the beginning and 170.8 MB in the end (delta: -65.7 MB). Peak memory consumption was 77.5 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 someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 299. 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; [L291] double x = 1.0 / 0.0; [L292] double y = __VERIFIER_nondet_double(); [L294] CALL, EXPR isinf_double(x) [L248] __int32_t hx, lx; [L250] ieee_double_shape_type ew_u; [L251] ew_u.value = (x) [L252] EXPR ew_u.parts.msw [L252] (hx) = ew_u.parts.msw [L253] EXPR ew_u.parts.lsw [L253] (lx) = ew_u.parts.lsw [L255] hx &= 0x7fffffff [L256] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L257] hx = 0x7ff00000 - hx [L258] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L294] RET, EXPR isinf_double(x) [L294] EXPR isinf_double(x) && isfinite_double(y) [L294] CALL, EXPR isfinite_double(y) [L262] __int32_t hx; [L264] ieee_double_shape_type gh_u; [L265] gh_u.value = (x) [L266] EXPR gh_u.parts.msw [L266] (hx) = gh_u.parts.msw [L268] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L294] RET, EXPR isfinite_double(y) [L294] EXPR isinf_double(x) && isfinite_double(y) [L294] COND TRUE isinf_double(x) && isfinite_double(y) && y > 0.0 [L296] 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; [L296] RET, EXPR __ieee754_atan2(y, x) [L296] double res = __ieee754_atan2(y, x); [L299] EXPR res == 0.0 && __signbit_double(res) == 0 [L299] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L300] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0683b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 133 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 324 SDtfs, 32 SDslu, 438 SDs, 0 SdLazy, 341 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 7440 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...