/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_0930.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 14:26:38,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 14:26:38,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 14:26:38,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 14:26:38,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 14:26:38,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 14:26:38,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 14:26:38,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 14:26:38,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 14:26:38,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 14:26:38,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 14:26:38,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 14:26:38,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 14:26:38,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 14:26:38,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 14:26:38,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 14:26:38,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 14:26:38,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 14:26:38,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 14:26:38,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 14:26:38,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 14:26:38,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 14:26:38,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 14:26:38,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 14:26:38,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 14:26:38,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 14:26:38,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 14:26:38,569 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 14:26:38,570 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 14:26:38,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 14:26:38,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 14:26:38,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 14:26:38,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 14:26:38,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 14:26:38,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 14:26:38,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 14:26:38,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 14:26:38,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 14:26:38,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 14:26:38,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 14:26:38,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 14:26:38,586 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 14:26:38,631 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 14:26:38,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 14:26:38,635 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 14:26:38,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 14:26:38,636 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 14:26:38,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 14:26:38,637 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 14:26:38,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 14:26:38,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 14:26:38,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 14:26:38,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 14:26:38,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 14:26:38,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 14:26:38,639 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 14:26:38,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 14:26:38,639 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 14:26:38,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 14:26:38,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 14:26:38,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 14:26:38,640 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 14:26:38,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 14:26:38,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:26:38,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 14:26:38,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 14:26:38,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 14:26:38,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 14:26:38,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 14:26:38,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 14:26:38,642 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 14:26:38,642 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 14:26:39,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 14:26:39,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 14:26:39,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 14:26:39,114 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 14:26:39,115 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 14:26:39,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0930.c [2020-10-28 14:26:39,181 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/825510c13/b091e779db5c443b95a480b02ca9ffe2/FLAG55f1c3805 [2020-10-28 14:26:39,870 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 14:26:39,870 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0930.c [2020-10-28 14:26:39,882 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/825510c13/b091e779db5c443b95a480b02ca9ffe2/FLAG55f1c3805 [2020-10-28 14:26:40,193 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/825510c13/b091e779db5c443b95a480b02ca9ffe2 [2020-10-28 14:26:40,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 14:26:40,203 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 14:26:40,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 14:26:40,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 14:26:40,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 14:26:40,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:26:40" (1/1) ... [2020-10-28 14:26:40,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20cff24a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:40, skipping insertion in model container [2020-10-28 14:26:40,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:26:40" (1/1) ... [2020-10-28 14:26:40,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 14:26:40,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 14:26:40,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:26:40,457 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 14:26:40,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:26:40,521 INFO L208 MainTranslator]: Completed translation [2020-10-28 14:26:40,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:40 WrapperNode [2020-10-28 14:26:40,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 14:26:40,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 14:26:40,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 14:26:40,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 14:26:40,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:40" (1/1) ... [2020-10-28 14:26:40,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:40" (1/1) ... [2020-10-28 14:26:40,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:40" (1/1) ... [2020-10-28 14:26:40,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:40" (1/1) ... [2020-10-28 14:26:40,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:40" (1/1) ... [2020-10-28 14:26:40,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:40" (1/1) ... [2020-10-28 14:26:40,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:40" (1/1) ... [2020-10-28 14:26:40,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 14:26:40,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 14:26:40,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 14:26:40,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 14:26:40,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:40" (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 14:26:40,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 14:26:40,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 14:26:40,682 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 14:26:40,682 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-10-28 14:26:40,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2020-10-28 14:26:40,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-10-28 14:26:40,683 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 14:26:40,683 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 14:26:40,683 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 14:26:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 14:26:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 14:26:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-28 14:26:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-10-28 14:26:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-28 14:26:40,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 14:26:40,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 14:26:40,685 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2020-10-28 14:26:40,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 14:26:40,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-28 14:26:40,685 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-10-28 14:26:40,686 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 14:26:40,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 14:26:40,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 14:26:40,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 14:26:41,408 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 14:26:41,409 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-28 14:26:41,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:26:41 BoogieIcfgContainer [2020-10-28 14:26:41,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 14:26:41,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 14:26:41,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 14:26:41,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 14:26:41,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 02:26:40" (1/3) ... [2020-10-28 14:26:41,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d9edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:26:41, skipping insertion in model container [2020-10-28 14:26:41,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:40" (2/3) ... [2020-10-28 14:26:41,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d9edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:26:41, skipping insertion in model container [2020-10-28 14:26:41,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:26:41" (3/3) ... [2020-10-28 14:26:41,425 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0930.c [2020-10-28 14:26:41,438 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 14:26:41,443 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 14:26:41,455 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 14:26:41,501 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 14:26:41,501 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 14:26:41,501 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 14:26:41,502 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 14:26:41,502 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 14:26:41,502 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 14:26:41,502 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 14:26:41,502 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 14:26:41,522 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-10-28 14:26:41,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-28 14:26:41,531 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:26:41,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:26:41,532 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:26:41,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:26:41,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1336758040, now seen corresponding path program 1 times [2020-10-28 14:26:41,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:26:41,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [377461801] [2020-10-28 14:26:41,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:26:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:41,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:41,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:41,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 14:26:41,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:26:41,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-28 14:26:41,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:41,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:41,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:41,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 14:26:41,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:41,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 14:26:42,051 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-28 14:26:42,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:26:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:42,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:42,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:42,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:26:42,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:26:42,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 14:26:42,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:42,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:42,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:42,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:26:42,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:42,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 14:26:42,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:26:42,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:42,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:42,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:42,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 14:26:42,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:26:42,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 14:26:42,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:42,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:42,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:42,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 14:26:42,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:42,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:26:42,166 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 14:26:42,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [377461801] [2020-10-28 14:26:42,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:26:42,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 14:26:42,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689669378] [2020-10-28 14:26:42,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 14:26:42,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:26:42,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 14:26:42,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 14:26:42,191 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 4 states. [2020-10-28 14:26:42,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:26:42,439 INFO L93 Difference]: Finished difference Result 89 states and 131 transitions. [2020-10-28 14:26:42,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 14:26:42,441 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-28 14:26:42,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:26:42,450 INFO L225 Difference]: With dead ends: 89 [2020-10-28 14:26:42,450 INFO L226 Difference]: Without dead ends: 43 [2020-10-28 14:26:42,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 14:26:42,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-28 14:26:42,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-28 14:26:42,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-28 14:26:42,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2020-10-28 14:26:42,499 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 19 [2020-10-28 14:26:42,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:26:42,499 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2020-10-28 14:26:42,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 14:26:42,500 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2020-10-28 14:26:42,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-28 14:26:42,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:26:42,501 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] [2020-10-28 14:26:42,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 14:26:42,502 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:26:42,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:26:42,502 INFO L82 PathProgramCache]: Analyzing trace with hash -308172676, now seen corresponding path program 1 times [2020-10-28 14:26:42,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:26:42,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482151512] [2020-10-28 14:26:42,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:26:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 14:26:42,568 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 14:26:42,568 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 14:26:42,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 14:26:42,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 02:26:42 BoogieIcfgContainer [2020-10-28 14:26:42,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 14:26:42,599 INFO L168 Benchmark]: Toolchain (without parser) took 2397.95 ms. Allocated memory is still 164.6 MB. Free memory was 140.6 MB in the beginning and 142.7 MB in the end (delta: -2.1 MB). Peak memory consumption was 51.7 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:42,602 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 125.8 MB. Free memory was 105.2 MB in the beginning and 105.1 MB in the end (delta: 131.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 14:26:42,604 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.95 ms. Allocated memory is still 164.6 MB. Free memory was 139.9 MB in the beginning and 127.5 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:42,611 INFO L168 Benchmark]: Boogie Preprocessor took 71.20 ms. Allocated memory is still 164.6 MB. Free memory was 127.5 MB in the beginning and 125.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:42,611 INFO L168 Benchmark]: RCFGBuilder took 817.37 ms. Allocated memory is still 164.6 MB. Free memory was 125.2 MB in the beginning and 129.2 MB in the end (delta: -4.0 MB). Peak memory consumption was 12.2 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:42,613 INFO L168 Benchmark]: TraceAbstraction took 1177.77 ms. Allocated memory is still 164.6 MB. Free memory was 128.7 MB in the beginning and 142.7 MB in the end (delta: -13.9 MB). Peak memory consumption was 38.4 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:42,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 125.8 MB. Free memory was 105.2 MB in the beginning and 105.1 MB in the end (delta: 131.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 317.95 ms. Allocated memory is still 164.6 MB. Free memory was 139.9 MB in the beginning and 127.5 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 71.20 ms. Allocated memory is still 164.6 MB. Free memory was 127.5 MB in the beginning and 125.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 817.37 ms. Allocated memory is still 164.6 MB. Free memory was 125.2 MB in the beginning and 129.2 MB in the end (delta: -4.0 MB). Peak memory consumption was 12.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1177.77 ms. Allocated memory is still 164.6 MB. Free memory was 128.7 MB in the beginning and 142.7 MB in the end (delta: -13.9 MB). Peak memory consumption was 38.4 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 someBinaryDOUBLEComparisonOperation at line 151, overapproximation of bitwiseOr at line 61, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; [L146] double x = 1.0; [L148] CALL, EXPR __ieee754_log(x) [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 [L60] COND TRUE hx < 0x00100000 [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; [L148] RET, EXPR __ieee754_log(x) [L148] double res = __ieee754_log(x); [L151] EXPR res == 0.0 && __signbit_double(res) == 0 [L151] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L152] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0930.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 8 SDslu, 47 SDs, 0 SdLazy, 54 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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, 0.4s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 1674 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...