/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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=BIGGEST --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 -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0662b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:30:52,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:30:52,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:30:52,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:30:52,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:30:52,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:30:52,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:30:52,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:30:52,954 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:30:52,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:30:52,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:30:52,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:30:52,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:30:52,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:30:52,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:30:52,969 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:30:52,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:30:52,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:30:52,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:30:52,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:30:52,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:30:52,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:30:52,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:30:52,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:30:52,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:30:52,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:30:52,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:30:52,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:30:53,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:30:53,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:30:53,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:30:53,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:30:53,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:30:53,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:30:53,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:30:53,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:30:53,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:30:53,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:30:53,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:30:53,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:30:53,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:30:53,010 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 [2020-10-12 15:30:53,048 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:30:53,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:30:53,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:30:53,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:30:53,050 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:30:53,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:30:53,051 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:30:53,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:30:53,051 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:30:53,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:30:53,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:30:53,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:30:53,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:30:53,054 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:30:53,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:30:53,054 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:30:53,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:30:53,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:30:53,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:30:53,055 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:30:53,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:30:53,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:30:53,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:30:53,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:30:53,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:30:53,056 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:30:53,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:30:53,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:30:53,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:30:53,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 15:30:53,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:30:53,374 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:30:53,378 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:30:53,379 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:30:53,380 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:30:53,380 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0662b.c [2020-10-12 15:30:53,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/af765c79f/26846daed3174aa1958279c7d4012448/FLAGfa3e0110a [2020-10-12 15:30:53,886 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:30:53,887 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0662b.c [2020-10-12 15:30:53,895 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/af765c79f/26846daed3174aa1958279c7d4012448/FLAGfa3e0110a [2020-10-12 15:30:54,281 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/af765c79f/26846daed3174aa1958279c7d4012448 [2020-10-12 15:30:54,290 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:30:54,292 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:30:54,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:30:54,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:30:54,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:30:54,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:30:54" (1/1) ... [2020-10-12 15:30:54,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c7ea157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:54, skipping insertion in model container [2020-10-12 15:30:54,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:30:54" (1/1) ... [2020-10-12 15:30:54,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:30:54,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:30:54,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:30:54,618 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:30:54,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:30:54,783 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:30:54,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:54 WrapperNode [2020-10-12 15:30:54,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:30:54,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:30:54,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:30:54,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:30:54,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:54" (1/1) ... [2020-10-12 15:30:54,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:54" (1/1) ... [2020-10-12 15:30:54,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:54" (1/1) ... [2020-10-12 15:30:54,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:54" (1/1) ... [2020-10-12 15:30:54,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:54" (1/1) ... [2020-10-12 15:30:54,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:54" (1/1) ... [2020-10-12 15:30:54,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:54" (1/1) ... [2020-10-12 15:30:54,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:30:54,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:30:54,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:30:54,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:30:54,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:54" (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 [2020-10-12 15:30:54,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:30:54,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:30:54,912 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-12 15:30:54,912 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-12 15:30:54,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-12 15:30:54,912 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:30:54,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:30:54,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-12 15:30:54,912 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-12 15:30:54,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 15:30:54,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-12 15:30:54,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 15:30:54,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 15:30:54,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 15:30:54,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-12 15:30:54,920 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-12 15:30:54,920 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-12 15:30:54,920 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:30:54,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:30:54,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-12 15:30:54,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:30:55,587 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:30:55,587 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-12 15:30:55,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:30:55 BoogieIcfgContainer [2020-10-12 15:30:55,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:30:55,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:30:55,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:30:55,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:30:55,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:30:54" (1/3) ... [2020-10-12 15:30:55,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bdd5419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:30:55, skipping insertion in model container [2020-10-12 15:30:55,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:54" (2/3) ... [2020-10-12 15:30:55,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bdd5419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:30:55, skipping insertion in model container [2020-10-12 15:30:55,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:30:55" (3/3) ... [2020-10-12 15:30:55,607 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0662b.c [2020-10-12 15:30:55,618 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:30:55,631 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 15:30:55,641 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 15:30:55,663 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:30:55,663 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:30:55,663 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:30:55,663 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:30:55,664 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:30:55,664 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:30:55,664 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:30:55,664 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:30:55,684 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2020-10-12 15:30:55,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-12 15:30:55,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:30:55,693 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:30:55,693 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:30:55,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:30:55,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1380022172, now seen corresponding path program 1 times [2020-10-12 15:30:55,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:30:55,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [64622432] [2020-10-12 15:30:55,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:30:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:30:55,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:30:55,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:30:56,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:30:56,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 15:30:56,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:30:56,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-10-12 15:30:56,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:30:56,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:30:56,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 15:30:56,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:30:56,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 15:30:56,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:30:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:30:56,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:30:56,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:30:56,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:30:56,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:30:56,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 15:30:56,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:30:56,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:30:56,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:30:56,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:30:56,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:30:56,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-12 15:30:56,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:30:56,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:30:56,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:30:56,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:30:56,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 15:30:56,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:30:56,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 15:30:56,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:30:56,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:30:56,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 15:30:56,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:30:56,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:30:56,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:30:56,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [64622432] [2020-10-12 15:30:56,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:30:56,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 15:30:56,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857720192] [2020-10-12 15:30:56,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 15:30:56,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:30:56,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 15:30:56,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:30:56,431 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 4 states. [2020-10-12 15:30:56,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:30:56,879 INFO L93 Difference]: Finished difference Result 200 states and 317 transitions. [2020-10-12 15:30:56,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-12 15:30:56,881 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-12 15:30:56,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:30:56,894 INFO L225 Difference]: With dead ends: 200 [2020-10-12 15:30:56,894 INFO L226 Difference]: Without dead ends: 98 [2020-10-12 15:30:56,899 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:30:56,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-12 15:30:56,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-12 15:30:56,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-12 15:30:56,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2020-10-12 15:30:56,966 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2020-10-12 15:30:56,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:30:56,967 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2020-10-12 15:30:56,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 15:30:56,968 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2020-10-12 15:30:56,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-12 15:30:56,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:30:56,971 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:30:56,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:30:56,971 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:30:56,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:30:56,973 INFO L82 PathProgramCache]: Analyzing trace with hash 959017453, now seen corresponding path program 1 times [2020-10-12 15:30:56,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:30:56,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1405621124] [2020-10-12 15:30:56,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:30:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 15:30:57,058 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 15:30:57,059 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 15:30:57,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:30:57,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 03:30:57 BoogieIcfgContainer [2020-10-12 15:30:57,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 15:30:57,096 INFO L168 Benchmark]: Toolchain (without parser) took 2802.72 ms. Allocated memory was 140.5 MB in the beginning and 235.9 MB in the end (delta: 95.4 MB). Free memory was 103.9 MB in the beginning and 126.9 MB in the end (delta: -23.0 MB). Peak memory consumption was 72.4 MB. Max. memory is 7.1 GB. [2020-10-12 15:30:57,099 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-12 15:30:57,100 INFO L168 Benchmark]: CACSL2BoogieTranslator took 491.49 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 103.4 MB in the beginning and 177.2 MB in the end (delta: -73.7 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-10-12 15:30:57,101 INFO L168 Benchmark]: Boogie Preprocessor took 70.50 ms. Allocated memory is still 202.9 MB. Free memory was 177.2 MB in the beginning and 173.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-10-12 15:30:57,102 INFO L168 Benchmark]: RCFGBuilder took 737.18 ms. Allocated memory is still 202.9 MB. Free memory was 173.8 MB in the beginning and 130.7 MB in the end (delta: 43.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 7.1 GB. [2020-10-12 15:30:57,104 INFO L168 Benchmark]: TraceAbstraction took 1497.05 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 130.0 MB in the beginning and 126.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2020-10-12 15:30:57,117 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 491.49 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 103.4 MB in the beginning and 177.2 MB in the end (delta: -73.7 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.50 ms. Allocated memory is still 202.9 MB. Free memory was 177.2 MB in the beginning and 173.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 737.18 ms. Allocated memory is still 202.9 MB. Free memory was 173.8 MB in the beginning and 130.7 MB in the end (delta: 43.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1497.05 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 130.0 MB in the beginning and 126.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 260]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 162, overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of someBinaryDOUBLEComparisonOperation at line 259. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] 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, }; [L60-L62] 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; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L251] double x = 0.0; [L252] double y = __VERIFIER_nondet_double(); [L254] COND TRUE y < 0.0 [L256] CALL, EXPR __ieee754_atan2(y, x) [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; [L256] RET, EXPR __ieee754_atan2(y, x) [L256] double res = __ieee754_atan2(y, x); [L259] COND TRUE res != -pi_o_2 [L260] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 139 SDtfs, 16 SDslu, 125 SDs, 0 SdLazy, 139 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 1512 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...