/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_1131b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 14:27:05,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 14:27:05,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 14:27:06,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 14:27:06,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 14:27:06,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 14:27:06,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 14:27:06,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 14:27:06,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 14:27:06,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 14:27:06,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 14:27:06,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 14:27:06,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 14:27:06,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 14:27:06,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 14:27:06,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 14:27:06,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 14:27:06,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 14:27:06,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 14:27:06,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 14:27:06,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 14:27:06,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 14:27:06,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 14:27:06,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 14:27:06,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 14:27:06,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 14:27:06,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 14:27:06,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 14:27:06,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 14:27:06,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 14:27:06,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 14:27:06,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 14:27:06,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 14:27:06,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 14:27:06,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 14:27:06,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 14:27:06,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 14:27:06,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 14:27:06,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 14:27:06,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 14:27:06,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 14:27:06,110 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 14:27:06,156 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 14:27:06,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 14:27:06,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 14:27:06,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 14:27:06,161 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 14:27:06,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 14:27:06,161 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 14:27:06,161 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 14:27:06,161 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 14:27:06,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 14:27:06,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 14:27:06,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 14:27:06,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 14:27:06,163 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 14:27:06,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 14:27:06,163 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 14:27:06,164 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 14:27:06,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 14:27:06,164 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 14:27:06,164 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 14:27:06,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 14:27:06,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:27:06,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 14:27:06,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 14:27:06,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 14:27:06,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 14:27:06,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 14:27:06,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 14:27:06,166 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 14:27:06,166 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 14:27:06,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 14:27:06,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 14:27:06,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 14:27:06,634 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 14:27:06,635 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 14:27:06,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-10-28 14:27:06,718 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c00a025f/31dd33e3a561463797a0837767c6e527/FLAG462c3fae6 [2020-10-28 14:27:07,489 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 14:27:07,489 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-10-28 14:27:07,499 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c00a025f/31dd33e3a561463797a0837767c6e527/FLAG462c3fae6 [2020-10-28 14:27:07,518 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c00a025f/31dd33e3a561463797a0837767c6e527 [2020-10-28 14:27:07,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 14:27:07,526 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 14:27:07,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 14:27:07,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 14:27:07,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 14:27:07,533 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:27:07" (1/1) ... [2020-10-28 14:27:07,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194c68b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07, skipping insertion in model container [2020-10-28 14:27:07,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:27:07" (1/1) ... [2020-10-28 14:27:07,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 14:27:07,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 14:27:07,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:27:07,813 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 14:27:07,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:27:07,883 INFO L208 MainTranslator]: Completed translation [2020-10-28 14:27:07,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07 WrapperNode [2020-10-28 14:27:07,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 14:27:07,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 14:27:07,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 14:27:07,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 14:27:07,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07" (1/1) ... [2020-10-28 14:27:07,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07" (1/1) ... [2020-10-28 14:27:07,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07" (1/1) ... [2020-10-28 14:27:07,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07" (1/1) ... [2020-10-28 14:27:07,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07" (1/1) ... [2020-10-28 14:27:07,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07" (1/1) ... [2020-10-28 14:27:07,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07" (1/1) ... [2020-10-28 14:27:07,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 14:27:07,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 14:27:07,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 14:27:07,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 14:27:07,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07" (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 14:27:08,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 14:27:08,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 14:27:08,050 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 14:27:08,050 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-10-28 14:27:08,050 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-10-28 14:27:08,051 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 14:27:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 14:27:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 14:27:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 14:27:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 14:27:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-28 14:27:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-10-28 14:27:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-28 14:27:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 14:27:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 14:27:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-28 14:27:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 14:27:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-10-28 14:27:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 14:27:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 14:27:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 14:27:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-28 14:27:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 14:27:08,806 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 14:27:08,806 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-28 14:27:08,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:27:08 BoogieIcfgContainer [2020-10-28 14:27:08,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 14:27:08,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 14:27:08,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 14:27:08,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 14:27:08,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 02:27:07" (1/3) ... [2020-10-28 14:27:08,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c9235d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:27:08, skipping insertion in model container [2020-10-28 14:27:08,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07" (2/3) ... [2020-10-28 14:27:08,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c9235d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:27:08, skipping insertion in model container [2020-10-28 14:27:08,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:27:08" (3/3) ... [2020-10-28 14:27:08,817 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2020-10-28 14:27:08,829 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 14:27:08,835 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 14:27:08,849 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 14:27:08,877 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 14:27:08,877 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 14:27:08,877 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 14:27:08,878 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 14:27:08,878 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 14:27:08,878 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 14:27:08,878 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 14:27:08,878 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 14:27:08,896 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-10-28 14:27:08,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-28 14:27:08,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:27:08,903 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] [2020-10-28 14:27:08,903 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:27:08,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:27:08,910 INFO L82 PathProgramCache]: Analyzing trace with hash 376373771, now seen corresponding path program 1 times [2020-10-28 14:27:08,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:27:08,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380271575] [2020-10-28 14:27:08,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:27:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:27:09,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:09,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:09,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:09,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:27:09,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-28 14:27:09,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 14:27:09,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 379 [2020-10-28 14:27:09,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:27:09,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:27:09,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:27:09,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-28 14:27:09,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:27:09,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 14:27:09,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:27:09,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:27:09,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:09,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:27:09,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:27:09,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:27:09,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 14:27:09,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:27:09,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:27:09,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:27:09,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:27:09,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:27:09,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:27:09,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:27:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:27:09,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:09,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:09,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:27:09,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:27:09,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:27:09,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 14:27:09,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:27:09,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:27:09,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:27:09,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 14:27:09,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:27:09,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:27:09,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-28 14:27:09,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:27:09,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:09,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:09,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:27:09,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 14:27:09,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:27:09,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 14:27:09,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:27:09,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:27:09,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:27:09,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 14:27:09,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:27:09,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 14:27:09,664 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 14:27:09,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380271575] [2020-10-28 14:27:09,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:27:09,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 14:27:09,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590135073] [2020-10-28 14:27:09,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 14:27:09,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:27:09,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 14:27:09,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 14:27:09,696 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 4 states. [2020-10-28 14:27:10,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:27:10,173 INFO L93 Difference]: Finished difference Result 143 states and 233 transitions. [2020-10-28 14:27:10,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 14:27:10,175 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-28 14:27:10,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:27:10,185 INFO L225 Difference]: With dead ends: 143 [2020-10-28 14:27:10,186 INFO L226 Difference]: Without dead ends: 69 [2020-10-28 14:27:10,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 14:27:10,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-28 14:27:10,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-28 14:27:10,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-28 14:27:10,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 95 transitions. [2020-10-28 14:27:10,239 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 95 transitions. Word has length 26 [2020-10-28 14:27:10,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:27:10,239 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 95 transitions. [2020-10-28 14:27:10,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 14:27:10,240 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 95 transitions. [2020-10-28 14:27:10,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-28 14:27:10,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:27:10,242 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 14:27:10,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 14:27:10,242 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:27:10,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:27:10,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1407820190, now seen corresponding path program 1 times [2020-10-28 14:27:10,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:27:10,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1641931298] [2020-10-28 14:27:10,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:27:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 14:27:10,306 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 14:27:10,306 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 14:27:10,311 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 14:27:10,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 02:27:10 BoogieIcfgContainer [2020-10-28 14:27:10,333 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 14:27:10,335 INFO L168 Benchmark]: Toolchain (without parser) took 2812.06 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 124.4 MB in the beginning and 148.0 MB in the end (delta: -23.6 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:10,336 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 14:27:10,337 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.85 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 110.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:10,338 INFO L168 Benchmark]: Boogie Preprocessor took 87.80 ms. Allocated memory is still 151.0 MB. Free memory was 110.8 MB in the beginning and 108.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:10,339 INFO L168 Benchmark]: RCFGBuilder took 832.26 ms. Allocated memory is still 151.0 MB. Free memory was 108.2 MB in the beginning and 124.2 MB in the end (delta: -16.1 MB). Peak memory consumption was 32.2 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:10,340 INFO L168 Benchmark]: TraceAbstraction took 1522.86 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 124.2 MB in the beginning and 148.0 MB in the end (delta: -23.7 MB). Peak memory consumption was 14.5 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:10,344 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 358.85 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 110.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 87.80 ms. Allocated memory is still 151.0 MB. Free memory was 110.8 MB in the beginning and 108.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 832.26 ms. Allocated memory is still 151.0 MB. Free memory was 108.2 MB in the beginning and 124.2 MB in the end (delta: -16.1 MB). Peak memory consumption was 32.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1522.86 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 124.2 MB in the beginning and 148.0 MB in the end (delta: -23.7 MB). Peak memory consumption was 14.5 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 43, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of someBinaryArithmeticDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 38, overapproximation of someBinaryDOUBLEComparisonOperation at line 187, overapproximation of bitwiseXor at line 39. Possible FailurePath: [L17-L20] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L179] double y = -1.0 / 0.0; [L180] double x = __VERIFIER_nondet_double(); [L182] CALL isfinite_double(x) [L163] __int32_t hx; [L165] ieee_double_shape_type gh_u; [L166] gh_u.value = (x) [L167] EXPR gh_u.parts.msw [L167] (hx) = gh_u.parts.msw [L169] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L182] RET isfinite_double(x) [L182] COND TRUE isfinite_double(x) [L184] CALL, EXPR fmod_double(x, y) [L23] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L24] __uint32_t lx, ly, lz; [L27] ieee_double_shape_type ew_u; [L28] ew_u.value = (x) [L29] EXPR ew_u.parts.msw [L29] (hx) = ew_u.parts.msw [L30] EXPR ew_u.parts.lsw [L30] (lx) = ew_u.parts.lsw [L33] ieee_double_shape_type ew_u; [L34] ew_u.value = (y) [L35] EXPR ew_u.parts.msw [L35] (hy) = ew_u.parts.msw [L36] EXPR ew_u.parts.lsw [L36] (ly) = ew_u.parts.lsw [L38] sx = hx & 0x80000000 [L39] hx ^= sx [L40] hy &= 0x7fffffff [L42-L43] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L44] return (x * y) / (x * y); [L184] RET, EXPR fmod_double(x, y) [L184] double res = fmod_double(x, y); [L187] COND TRUE res != x [L188] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1131b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 98 SDtfs, 8 SDslu, 86 SDs, 0 SdLazy, 101 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 2200 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...