/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_1300.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:43:36,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:43:36,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:43:36,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:43:36,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:43:36,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:43:36,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:43:36,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:43:36,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:43:36,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:43:36,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:43:36,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:43:36,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:43:36,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:43:36,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:43:36,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:43:36,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:43:36,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:43:36,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:43:36,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:43:36,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:43:36,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:43:36,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:43:36,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:43:36,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:43:36,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:43:36,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:43:36,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:43:36,494 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:43:36,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:43:36,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:43:36,497 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:43:36,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:43:36,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:43:36,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:43:36,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:43:36,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:43:36,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:43:36,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:43:36,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:43:36,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:43:36,512 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 19:43:36,567 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:43:36,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:43:36,572 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:43:36,573 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:43:36,573 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:43:36,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:43:36,573 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:43:36,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:43:36,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:43:36,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:43:36,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:43:36,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:43:36,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:43:36,576 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:43:36,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:43:36,576 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:43:36,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:43:36,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:43:36,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:43:36,577 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:43:36,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:43:36,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:43:36,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:43:36,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:43:36,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:43:36,578 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:43:36,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:43:36,579 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:43:36,579 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:43:36,579 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:43:37,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:43:37,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:43:37,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:43:37,069 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:43:37,070 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:43:37,071 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1300.c [2020-10-27 19:43:37,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98478e563/cc20301dc7d74f89a8af146cbdfd175b/FLAGb820dc85c [2020-10-27 19:43:37,809 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:43:37,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1300.c [2020-10-27 19:43:37,818 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98478e563/cc20301dc7d74f89a8af146cbdfd175b/FLAGb820dc85c [2020-10-27 19:43:38,145 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98478e563/cc20301dc7d74f89a8af146cbdfd175b [2020-10-27 19:43:38,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:43:38,155 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:43:38,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:38,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:43:38,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:43:38,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:38" (1/1) ... [2020-10-27 19:43:38,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ab36c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:38, skipping insertion in model container [2020-10-27 19:43:38,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:38" (1/1) ... [2020-10-27 19:43:38,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:43:38,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:43:38,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:38,376 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:43:38,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:38,421 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:43:38,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:38 WrapperNode [2020-10-27 19:43:38,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:38,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:43:38,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:43:38,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:43:38,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:38" (1/1) ... [2020-10-27 19:43:38,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:38" (1/1) ... [2020-10-27 19:43:38,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:38" (1/1) ... [2020-10-27 19:43:38,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:38" (1/1) ... [2020-10-27 19:43:38,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:38" (1/1) ... [2020-10-27 19:43:38,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:38" (1/1) ... [2020-10-27 19:43:38,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:38" (1/1) ... [2020-10-27 19:43:38,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:43:38,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:43:38,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:43:38,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:43:38,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:38" (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 19:43:38,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:43:38,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:43:38,548 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:43:38,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-10-27 19:43:38,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-27 19:43:38,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-10-27 19:43:38,548 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:43:38,549 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:43:38,549 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:43:38,549 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:43:38,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:43:38,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 19:43:38,549 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-10-27 19:43:38,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:43:38,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:43:38,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:43:38,550 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-27 19:43:38,550 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-10-27 19:43:38,550 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:43:38,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:43:38,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:43:38,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:43:38,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:43:38,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:43:39,193 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:43:39,194 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-27 19:43:39,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:39 BoogieIcfgContainer [2020-10-27 19:43:39,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:43:39,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:43:39,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:43:39,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:43:39,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:43:38" (1/3) ... [2020-10-27 19:43:39,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd3d45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:39, skipping insertion in model container [2020-10-27 19:43:39,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:38" (2/3) ... [2020-10-27 19:43:39,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd3d45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:39, skipping insertion in model container [2020-10-27 19:43:39,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:39" (3/3) ... [2020-10-27 19:43:39,206 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1300.c [2020-10-27 19:43:39,219 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:43:39,224 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:43:39,241 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:43:39,273 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:43:39,274 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:43:39,274 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:43:39,274 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:43:39,274 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:43:39,274 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:43:39,275 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:43:39,275 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:43:39,296 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-10-27 19:43:39,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-27 19:43:39,304 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:39,305 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] [2020-10-27 19:43:39,306 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:39,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:39,313 INFO L82 PathProgramCache]: Analyzing trace with hash 396412620, now seen corresponding path program 1 times [2020-10-27 19:43:39,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:39,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592788388] [2020-10-27 19:43:39,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:39,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:39,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:39,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:40,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:40,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 19:43:40,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 19:43:40,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 721 [2020-10-27 19:43:40,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:40,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:40,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-27 19:43:40,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:40,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-27 19:43:40,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:40,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:40,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:40,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:40,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:40,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 19:43:40,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:40,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:40,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:40,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:40,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:40,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:43:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:40,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:40,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:40,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:40,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:43:40,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:43:40,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 19:43:40,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:40,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:40,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 19:43:40,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:40,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:40,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 19:43:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:40,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:40,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:40,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:43:40,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:40,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 19:43:40,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:40,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:40,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 19:43:40,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:40,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:43:40,425 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 19:43:40,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592788388] [2020-10-27 19:43:40,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:40,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:43:40,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074824194] [2020-10-27 19:43:40,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:43:40,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:40,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:43:40,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:43:40,457 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 4 states. [2020-10-27 19:43:40,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:40,688 INFO L93 Difference]: Finished difference Result 71 states and 85 transitions. [2020-10-27 19:43:40,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:43:40,690 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-10-27 19:43:40,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:40,706 INFO L225 Difference]: With dead ends: 71 [2020-10-27 19:43:40,707 INFO L226 Difference]: Without dead ends: 33 [2020-10-27 19:43:40,713 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 19:43:40,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-27 19:43:40,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-27 19:43:40,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-27 19:43:40,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2020-10-27 19:43:40,790 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 25 [2020-10-27 19:43:40,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:40,795 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2020-10-27 19:43:40,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:43:40,796 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2020-10-27 19:43:40,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-27 19:43:40,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:40,797 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] [2020-10-27 19:43:40,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:43:40,799 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:40,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:40,801 INFO L82 PathProgramCache]: Analyzing trace with hash 556326989, now seen corresponding path program 1 times [2020-10-27 19:43:40,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:40,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717470172] [2020-10-27 19:43:40,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:40,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:41,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:41,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-27 19:43:41,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:41,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-27 19:43:41,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:41,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 19:43:41,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-27 19:43:41,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 19:43:41,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:41,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:41,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:41,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:41,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:41,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:41,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 19:43:41,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:41,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:41,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:41,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:41,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 19:43:41,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:43:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:41,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:41,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:41,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 19:43:41,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:41,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 19:43:41,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:41,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:41,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:41,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:41,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:41,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 19:43:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:41,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:41,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:41,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 19:43:41,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:41,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 19:43:41,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:41,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:41,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 19:43:41,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:41,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:41,327 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 19:43:41,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717470172] [2020-10-27 19:43:41,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:41,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 19:43:41,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070808931] [2020-10-27 19:43:41,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 19:43:41,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:41,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 19:43:41,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:43:41,333 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand 5 states. [2020-10-27 19:43:41,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:41,481 INFO L93 Difference]: Finished difference Result 46 states and 45 transitions. [2020-10-27 19:43:41,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 19:43:41,482 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-27 19:43:41,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:41,483 INFO L225 Difference]: With dead ends: 46 [2020-10-27 19:43:41,483 INFO L226 Difference]: Without dead ends: 33 [2020-10-27 19:43:41,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 19:43:41,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-27 19:43:41,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-27 19:43:41,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-27 19:43:41,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2020-10-27 19:43:41,493 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 27 [2020-10-27 19:43:41,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:41,494 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2020-10-27 19:43:41,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 19:43:41,494 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2020-10-27 19:43:41,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-27 19:43:41,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:41,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:43:41,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:43:41,496 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:41,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:41,497 INFO L82 PathProgramCache]: Analyzing trace with hash 963784223, now seen corresponding path program 1 times [2020-10-27 19:43:41,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:41,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870846375] [2020-10-27 19:43:41,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:43:41,543 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:43:41,543 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:43:41,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 19:43:41,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:43:41 BoogieIcfgContainer [2020-10-27 19:43:41,565 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:43:41,568 INFO L168 Benchmark]: Toolchain (without parser) took 3416.87 ms. Allocated memory was 125.8 MB in the beginning and 156.2 MB in the end (delta: 30.4 MB). Free memory was 100.8 MB in the beginning and 87.9 MB in the end (delta: 12.9 MB). Peak memory consumption was 44.2 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:41,569 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:43:41,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.99 ms. Allocated memory is still 125.8 MB. Free memory was 100.1 MB in the beginning and 90.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:41,570 INFO L168 Benchmark]: Boogie Preprocessor took 46.60 ms. Allocated memory is still 125.8 MB. Free memory was 90.2 MB in the beginning and 88.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:41,572 INFO L168 Benchmark]: RCFGBuilder took 725.56 ms. Allocated memory was 125.8 MB in the beginning and 156.2 MB in the end (delta: 30.4 MB). Free memory was 88.5 MB in the beginning and 136.5 MB in the end (delta: -48.0 MB). Peak memory consumption was 21.9 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:41,572 INFO L168 Benchmark]: TraceAbstraction took 2367.50 ms. Allocated memory is still 156.2 MB. Free memory was 136.0 MB in the beginning and 87.9 MB in the end (delta: 48.1 MB). Peak memory consumption was 47.5 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:41,576 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 264.99 ms. Allocated memory is still 125.8 MB. Free memory was 100.1 MB in the beginning and 90.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 46.60 ms. Allocated memory is still 125.8 MB. Free memory was 90.2 MB in the beginning and 88.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 725.56 ms. Allocated memory was 125.8 MB in the beginning and 156.2 MB in the end (delta: 30.4 MB). Free memory was 88.5 MB in the beginning and 136.5 MB in the end (delta: -48.0 MB). Peak memory consumption was 21.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2367.50 ms. Allocated memory is still 156.2 MB. Free memory was 136.0 MB in the beginning and 87.9 MB in the end (delta: 48.1 MB). Peak memory consumption was 47.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 27, overapproximation of bitwiseAnd at line 42, overapproximation of someBinaryDOUBLEComparisonOperation at line 60, overapproximation of to_real at line 57. Possible FailurePath: [L52] double x = __VERIFIER_nondet_double(); [L55] CALL, EXPR isinf_double(x) [L19] __int32_t hx, lx; [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (hx) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lx) = ew_u.parts.lsw [L26] hx &= 0x7fffffff [L27] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L28] hx = 0x7ff00000 - hx [L29] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L55] RET, EXPR isinf_double(x) [L55] !isinf_double(x) && !isnan_double(x) [L55] CALL, EXPR isnan_double(x) [L33] return x != x; [L55] RET, EXPR isnan_double(x) [L55] !isinf_double(x) && !isnan_double(x) [L55] COND TRUE !isinf_double(x) && !isnan_double(x) [L57] CALL, EXPR isfinite_double(x) [L36] __int32_t hx; [L38] ieee_double_shape_type gh_u; [L39] gh_u.value = (x) [L40] EXPR gh_u.parts.msw [L40] (hx) = gh_u.parts.msw [L42] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L57] RET, EXPR isfinite_double(x) [L57] double res = isfinite_double(x); [L60] COND TRUE res == 0.0 [L61] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1300.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 66 SDtfs, 24 SDslu, 63 SDs, 0 SdLazy, 71 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 3978 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...