/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=DEEPEST --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_1092d.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:43:20,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:43:20,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:43:20,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:43:20,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:43:20,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:43:20,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:43:20,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:43:20,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:43:20,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:43:20,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:43:20,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:43:20,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:43:20,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:43:20,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:43:20,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:43:20,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:43:20,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:43:20,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:43:20,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:43:20,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:43:20,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:43:20,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:43:20,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:43:20,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:43:20,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:43:20,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:43:20,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:43:20,577 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:43:20,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-10-27 19:43:20,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:43:20,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:43:20,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:43:20,588 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 [2020-10-27 19:43:20,647 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:43:20,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:43:20,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:43:20,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:43:20,651 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:43:20,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:43:20,652 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:43:20,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:43:20,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:43:20,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:43:20,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:43:20,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:43:20,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:43:20,654 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:43:20,655 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:43:20,655 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:43:20,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:43:20,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:43:20,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:43:20,656 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:43:20,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:43:20,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:43:20,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:43:20,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:43:20,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:43:20,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:43:20,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:43:20,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:43:20,658 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:43:20,658 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:43:21,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:43:21,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:43:21,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:43:21,068 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:43:21,068 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:43:21,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092d.c [2020-10-27 19:43:21,144 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75bfd6c41/b3480ada40a04441a1f2a41cbeca919b/FLAG7d1cc3f37 [2020-10-27 19:43:21,830 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:43:21,831 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1092d.c [2020-10-27 19:43:21,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75bfd6c41/b3480ada40a04441a1f2a41cbeca919b/FLAG7d1cc3f37 [2020-10-27 19:43:22,099 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75bfd6c41/b3480ada40a04441a1f2a41cbeca919b [2020-10-27 19:43:22,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:43:22,117 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:43:22,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:22,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:43:22,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:43:22,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:22" (1/1) ... [2020-10-27 19:43:22,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19e40cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:22, skipping insertion in model container [2020-10-27 19:43:22,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:22" (1/1) ... [2020-10-27 19:43:22,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:43:22,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:43:22,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:22,360 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:43:22,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:22,424 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:43:22,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:22 WrapperNode [2020-10-27 19:43:22,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:22,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:43:22,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:43:22,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:43:22,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:22" (1/1) ... [2020-10-27 19:43:22,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:22" (1/1) ... [2020-10-27 19:43:22,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:22" (1/1) ... [2020-10-27 19:43:22,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:22" (1/1) ... [2020-10-27 19:43:22,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:22" (1/1) ... [2020-10-27 19:43:22,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:22" (1/1) ... [2020-10-27 19:43:22,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:22" (1/1) ... [2020-10-27 19:43:22,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:43:22,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:43:22,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:43:22,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:43:22,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:22" (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 [2020-10-27 19:43:22,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:43:22,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:43:22,565 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:43:22,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2020-10-27 19:43:22,565 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-10-27 19:43:22,566 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:43:22,567 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:43:22,567 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:43:22,567 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:43:22,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:43:22,569 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2020-10-27 19:43:22,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:43:22,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:43:22,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:43:22,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:43:22,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:43:22,572 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-10-27 19:43:22,572 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:43:22,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:43:22,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:43:22,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:43:23,440 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:43:23,441 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-27 19:43:23,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:23 BoogieIcfgContainer [2020-10-27 19:43:23,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:43:23,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:43:23,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:43:23,451 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:43:23,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:43:22" (1/3) ... [2020-10-27 19:43:23,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb89a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:23, skipping insertion in model container [2020-10-27 19:43:23,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:22" (2/3) ... [2020-10-27 19:43:23,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb89a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:23, skipping insertion in model container [2020-10-27 19:43:23,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:23" (3/3) ... [2020-10-27 19:43:23,456 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092d.c [2020-10-27 19:43:23,473 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:43:23,478 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:43:23,492 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:43:23,533 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:43:23,533 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:43:23,534 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:43:23,534 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:43:23,534 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:43:23,534 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:43:23,534 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:43:23,534 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:43:23,562 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2020-10-27 19:43:23,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-27 19:43:23,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:23,572 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] [2020-10-27 19:43:23,572 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:23,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:23,582 INFO L82 PathProgramCache]: Analyzing trace with hash 905132281, now seen corresponding path program 1 times [2020-10-27 19:43:23,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:23,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13713743] [2020-10-27 19:43:23,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:23,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:23,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:24,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:24,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 19:43:24,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:43:24,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-10-27 19:43:24,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:24,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:24,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-27 19:43:24,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:24,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 19:43:24,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:24,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:24,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:24,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:24,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:24,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 19:43:24,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:24,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:24,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:24,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:24,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:24,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:43:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:24,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:24,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:24,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:24,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 19:43:24,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:43:24,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 19:43:24,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:24,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:24,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 19:43:24,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:24,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:24,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 19:43:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:24,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:24,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:24,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:43:24,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:24,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-27 19:43:24,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:24,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:24,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 19:43:24,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:24,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:43:24,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:43:24,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13713743] [2020-10-27 19:43:24,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:24,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:43:24,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247565853] [2020-10-27 19:43:24,415 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:43:24,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:24,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:43:24,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:43:24,435 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 4 states. [2020-10-27 19:43:24,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:24,765 INFO L93 Difference]: Finished difference Result 97 states and 141 transitions. [2020-10-27 19:43:24,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:43:24,768 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-27 19:43:24,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:24,779 INFO L225 Difference]: With dead ends: 97 [2020-10-27 19:43:24,780 INFO L226 Difference]: Without dead ends: 47 [2020-10-27 19:43:24,787 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 [2020-10-27 19:43:24,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-27 19:43:24,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-27 19:43:24,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-27 19:43:24,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2020-10-27 19:43:24,840 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 26 [2020-10-27 19:43:24,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:24,840 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2020-10-27 19:43:24,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:43:24,840 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2020-10-27 19:43:24,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-27 19:43:24,842 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:24,842 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] [2020-10-27 19:43:24,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:43:24,843 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:24,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:24,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1677251438, now seen corresponding path program 1 times [2020-10-27 19:43:24,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:24,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [385341092] [2020-10-27 19:43:24,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:43:24,926 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:43:24,927 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:43:24,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:43:24,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:43:24 BoogieIcfgContainer [2020-10-27 19:43:24,951 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:43:24,954 INFO L168 Benchmark]: Toolchain (without parser) took 2839.98 ms. Allocated memory was 151.0 MB in the beginning and 191.9 MB in the end (delta: 40.9 MB). Free memory was 127.0 MB in the beginning and 171.9 MB in the end (delta: -44.9 MB). Peak memory consumption was 81.5 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:24,955 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:43:24,956 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.53 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 115.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:24,957 INFO L168 Benchmark]: Boogie Preprocessor took 53.26 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 113.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:24,957 INFO L168 Benchmark]: RCFGBuilder took 963.01 ms. Allocated memory is still 151.0 MB. Free memory was 113.5 MB in the beginning and 125.9 MB in the end (delta: -12.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:24,959 INFO L168 Benchmark]: TraceAbstraction took 1504.89 ms. Allocated memory was 151.0 MB in the beginning and 191.9 MB in the end (delta: 40.9 MB). Free memory was 125.3 MB in the beginning and 171.9 MB in the end (delta: -46.5 MB). Peak memory consumption was 79.3 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:24,962 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 306.53 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 115.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 53.26 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 113.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 963.01 ms. Allocated memory is still 151.0 MB. Free memory was 113.5 MB in the beginning and 125.9 MB in the end (delta: -12.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1504.89 ms. Allocated memory was 151.0 MB in the beginning and 191.9 MB in the end (delta: 40.9 MB). Free memory was 125.3 MB in the beginning and 171.9 MB in the end (delta: -46.5 MB). Peak memory consumption was 79.3 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 shiftRight at line 40, overapproximation of bitwiseOr at line 92, overapproximation of someBinaryArithmeticDOUBLEoperation at line 105, overapproximation of bitwiseAnd at line 91. Possible FailurePath: [L16] static const double huge_ceil = 1.0e300; [L105] double x = -1.0 / 0.0; [L106] CALL, EXPR ceil_double(x) [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff [L28] COND TRUE j0 < 20 [L29] COND FALSE !(j0 < 0) [L40] i = (0x000fffff) >> j0 [L41] COND TRUE ((i0 & i) | i1) == 0 [L42] return x; [L106] RET, EXPR ceil_double(x) [L106] double res = ceil_double(x); [L109] CALL, EXPR isinf_double(res) [L84] __int32_t hx, lx; [L86] ieee_double_shape_type ew_u; [L87] ew_u.value = (x) [L88] EXPR ew_u.parts.msw [L88] (hx) = ew_u.parts.msw [L89] EXPR ew_u.parts.lsw [L89] (lx) = ew_u.parts.lsw [L91] hx &= 0x7fffffff [L92] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L93] hx = 0x7ff00000 - hx [L94] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L109] RET, EXPR isinf_double(res) [L109] COND TRUE !isinf_double(res) [L110] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1092d.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 62 SDtfs, 8 SDslu, 55 SDs, 0 SdLazy, 60 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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=54occurred 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, 0.6s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 2050 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...