/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_1251b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:43:33,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:43:33,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:43:33,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:43:33,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:43:33,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:43:33,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:43:33,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:43:33,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:43:33,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:43:33,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:43:33,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:43:33,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:43:33,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:43:33,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:43:33,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:43:33,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:43:33,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:43:33,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:43:33,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:43:33,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:43:33,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:43:33,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:43:33,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:43:33,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:43:33,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:43:33,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:43:33,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:43:33,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:43:33,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:43:33,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:43:33,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:43:33,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:43:33,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:43:33,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:43:33,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:43:33,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:43:33,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:43:33,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:43:33,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:43:33,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:43:33,494 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 19:43:33,551 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:43:33,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:43:33,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:43:33,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:43:33,556 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:43:33,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:43:33,557 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:43:33,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:43:33,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:43:33,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:43:33,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:43:33,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:43:33,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:43:33,559 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:43:33,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:43:33,560 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:43:33,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:43:33,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:43:33,560 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:43:33,560 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:43:33,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:43:33,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:43:33,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:43:33,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:43:33,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:43:33,562 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:43:33,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:43:33,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:43:33,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:43:33,563 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:43:34,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:43:34,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:43:34,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:43:34,082 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:43:34,083 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:43:34,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-10-27 19:43:34,178 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/843182482/e2ba13ce5fb6477fbdbbfc3fff078f3b/FLAGa2a90a1bc [2020-10-27 19:43:34,846 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:43:34,847 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-10-27 19:43:34,856 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/843182482/e2ba13ce5fb6477fbdbbfc3fff078f3b/FLAGa2a90a1bc [2020-10-27 19:43:35,174 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/843182482/e2ba13ce5fb6477fbdbbfc3fff078f3b [2020-10-27 19:43:35,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:43:35,187 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:43:35,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:35,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:43:35,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:43:35,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:35" (1/1) ... [2020-10-27 19:43:35,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1502a49e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:35, skipping insertion in model container [2020-10-27 19:43:35,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:35" (1/1) ... [2020-10-27 19:43:35,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:43:35,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:43:35,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:35,424 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:43:35,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:35,517 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:43:35,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:35 WrapperNode [2020-10-27 19:43:35,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:35,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:43:35,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:43:35,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:43:35,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:35" (1/1) ... [2020-10-27 19:43:35,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:35" (1/1) ... [2020-10-27 19:43:35,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:35" (1/1) ... [2020-10-27 19:43:35,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:35" (1/1) ... [2020-10-27 19:43:35,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:35" (1/1) ... [2020-10-27 19:43:35,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:35" (1/1) ... [2020-10-27 19:43:35,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:35" (1/1) ... [2020-10-27 19:43:35,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:43:35,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:43:35,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:43:35,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:43:35,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:35" (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 19:43:35,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:43:35,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:43:35,721 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:43:35,721 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-27 19:43:35,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-10-27 19:43:35,722 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2020-10-27 19:43:35,722 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:43:35,722 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:43:35,722 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:43:35,722 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:43:35,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:43:35,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 19:43:35,723 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-27 19:43:35,723 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-10-27 19:43:35,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:43:35,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:43:35,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:43:35,724 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2020-10-27 19:43:35,724 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:43:35,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:43:35,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:43:35,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:43:35,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:43:35,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:43:36,313 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:43:36,313 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-27 19:43:36,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:36 BoogieIcfgContainer [2020-10-27 19:43:36,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:43:36,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:43:36,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:43:36,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:43:36,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:43:35" (1/3) ... [2020-10-27 19:43:36,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bef89de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:36, skipping insertion in model container [2020-10-27 19:43:36,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:35" (2/3) ... [2020-10-27 19:43:36,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bef89de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:36, skipping insertion in model container [2020-10-27 19:43:36,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:36" (3/3) ... [2020-10-27 19:43:36,332 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1251b.c [2020-10-27 19:43:36,348 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:43:36,354 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:43:36,368 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:43:36,418 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:43:36,419 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:43:36,419 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:43:36,419 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:43:36,419 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:43:36,419 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:43:36,419 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:43:36,419 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:43:36,442 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-10-27 19:43:36,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-27 19:43:36,453 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:36,454 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 19:43:36,455 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:36,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:36,465 INFO L82 PathProgramCache]: Analyzing trace with hash 976255988, now seen corresponding path program 1 times [2020-10-27 19:43:36,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:36,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [920545556] [2020-10-27 19:43:36,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:36,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:36,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:36,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:37,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:37,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-27 19:43:37,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:43:37,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 415 [2020-10-27 19:43:37,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:37,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:37,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 19:43:37,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:43:37,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 19:43:37,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:37,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:37,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:37,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:37,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:37,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 19:43:37,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:37,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:37,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:37,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:37,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:37,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:43:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:37,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:37,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:37,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:37,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:37,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 19:43:37,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:37,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:37,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:37,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:37,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:37,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 19:43:37,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:37,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:37,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:37,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:37,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 19:43:37,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:43:37,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-27 19:43:37,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:37,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:37,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 19:43:37,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:43:37,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:43:37,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:43:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:37,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:37,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:37,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:37,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:43:37,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:43:37,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 19:43:37,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:37,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:37,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 19:43:37,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:37,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:43:37,444 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 19:43:37,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [920545556] [2020-10-27 19:43:37,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:37,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 19:43:37,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074982874] [2020-10-27 19:43:37,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 19:43:37,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:37,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 19:43:37,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:43:37,475 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 5 states. [2020-10-27 19:43:37,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:37,828 INFO L93 Difference]: Finished difference Result 77 states and 100 transitions. [2020-10-27 19:43:37,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:43:37,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-27 19:43:37,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:37,841 INFO L225 Difference]: With dead ends: 77 [2020-10-27 19:43:37,841 INFO L226 Difference]: Without dead ends: 38 [2020-10-27 19:43:37,845 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 19:43:37,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-27 19:43:37,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-27 19:43:37,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-27 19:43:37,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2020-10-27 19:43:37,946 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 28 [2020-10-27 19:43:37,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:37,946 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2020-10-27 19:43:37,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 19:43:37,947 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2020-10-27 19:43:37,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-27 19:43:37,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:37,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:43:37,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:43:37,950 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:37,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:37,950 INFO L82 PathProgramCache]: Analyzing trace with hash 750737641, now seen corresponding path program 1 times [2020-10-27 19:43:37,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:37,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1595214414] [2020-10-27 19:43:37,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:37,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:38,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:38,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-27 19:43:38,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:38,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-27 19:43:38,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:38,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:38,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-27 19:43:38,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:43:38,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:38,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:38,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:38,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:38,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:38,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:38,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:38,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 19:43:38,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:38,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:38,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:38,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:38,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:38,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:43:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:38,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:38,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:38,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:38,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:38,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 19:43:38,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:38,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:38,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:38,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:38,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:38,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 19:43:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:38,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:38,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:38,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 19:43:38,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:38,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 19:43:38,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 19:43:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:43:38,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:38,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:43:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:38,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:38,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:38,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 19:43:38,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:38,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 19:43:38,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:38,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:38,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:38,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 19:43:38,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:38,360 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 19:43:38,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1595214414] [2020-10-27 19:43:38,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:38,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 19:43:38,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043133495] [2020-10-27 19:43:38,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 19:43:38,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:38,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 19:43:38,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 19:43:38,365 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 6 states. [2020-10-27 19:43:38,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:38,645 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2020-10-27 19:43:38,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 19:43:38,646 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-10-27 19:43:38,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:38,649 INFO L225 Difference]: With dead ends: 49 [2020-10-27 19:43:38,650 INFO L226 Difference]: Without dead ends: 42 [2020-10-27 19:43:38,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-27 19:43:38,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-27 19:43:38,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-27 19:43:38,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-27 19:43:38,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2020-10-27 19:43:38,664 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 29 [2020-10-27 19:43:38,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:38,665 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2020-10-27 19:43:38,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 19:43:38,665 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2020-10-27 19:43:38,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-27 19:43:38,667 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:38,667 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] [2020-10-27 19:43:38,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:43:38,667 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:38,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:38,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1564393961, now seen corresponding path program 1 times [2020-10-27 19:43:38,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:38,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874262960] [2020-10-27 19:43:38,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:38,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:38,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:38,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:38,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-27 19:43:38,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:38,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-27 19:43:38,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:38,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:38,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-27 19:43:38,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:43:38,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:38,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:38,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:38,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:38,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:38,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:38,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 19:43:38,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:38,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:38,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:38,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:38,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:38,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:43:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:38,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:38,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:38,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:38,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:38,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 19:43:38,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:38,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:38,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:38,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:38,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:43:38,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 19:43:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:38,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:38,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:38,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 19:43:38,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:38,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-27 19:43:38,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:38,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:38,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 19:43:38,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:43:38,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:43:39,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:43:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:39,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:39,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:39,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 19:43:39,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:39,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 19:43:39,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:39,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:39,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:39,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 19:43:39,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:39,064 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 19:43:39,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874262960] [2020-10-27 19:43:39,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:39,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 19:43:39,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529955764] [2020-10-27 19:43:39,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 19:43:39,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:39,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 19:43:39,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 19:43:39,067 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 6 states. [2020-10-27 19:43:39,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:39,356 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2020-10-27 19:43:39,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 19:43:39,357 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-10-27 19:43:39,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:39,358 INFO L225 Difference]: With dead ends: 53 [2020-10-27 19:43:39,358 INFO L226 Difference]: Without dead ends: 46 [2020-10-27 19:43:39,359 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-27 19:43:39,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-27 19:43:39,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2020-10-27 19:43:39,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-27 19:43:39,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2020-10-27 19:43:39,370 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 30 [2020-10-27 19:43:39,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:39,370 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2020-10-27 19:43:39,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 19:43:39,370 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2020-10-27 19:43:39,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-27 19:43:39,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:39,372 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] [2020-10-27 19:43:39,372 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 19:43:39,372 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:39,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:39,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1083099565, now seen corresponding path program 1 times [2020-10-27 19:43:39,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:39,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230368117] [2020-10-27 19:43:39,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:39,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:39,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:39,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 19:43:39,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:39,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-27 19:43:39,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:39,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:39,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-27 19:43:39,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:43:39,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:39,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:39,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:39,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:39,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:39,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:39,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 19:43:39,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:39,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:39,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:39,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:39,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:39,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:43:39,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:39,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:39,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:39,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:39,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:39,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 19:43:39,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:39,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:39,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:39,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:39,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:39,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 19:43:39,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:39,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:39,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:39,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 19:43:39,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:39,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 19:43:39,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:39,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:39,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 19:43:39,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:43:39,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:39,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:43:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:39,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:39,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:39,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 19:43:39,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:39,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 19:43:39,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 19:43:39,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:39,727 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 19:43:39,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230368117] [2020-10-27 19:43:39,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:39,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 19:43:39,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412890860] [2020-10-27 19:43:39,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 19:43:39,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:39,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 19:43:39,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 19:43:39,730 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 6 states. [2020-10-27 19:43:40,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:40,028 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2020-10-27 19:43:40,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 19:43:40,029 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-10-27 19:43:40,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:40,031 INFO L225 Difference]: With dead ends: 53 [2020-10-27 19:43:40,031 INFO L226 Difference]: Without dead ends: 46 [2020-10-27 19:43:40,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-27 19:43:40,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-27 19:43:40,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2020-10-27 19:43:40,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-27 19:43:40,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2020-10-27 19:43:40,042 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 31 [2020-10-27 19:43:40,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:40,042 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2020-10-27 19:43:40,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 19:43:40,042 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2020-10-27 19:43:40,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-27 19:43:40,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:40,044 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 19:43:40,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 19:43:40,044 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:40,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:40,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1341817893, now seen corresponding path program 1 times [2020-10-27 19:43:40,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:40,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1065447056] [2020-10-27 19:43:40,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:40,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:40,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:40,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 19:43:40,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:40,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-27 19:43:40,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:40,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:40,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-27 19:43:40,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:43:40,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:40,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:40,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:40,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:40,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:40,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:40,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 19:43:40,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:40,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:40,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:40,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:40,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:40,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:43:40,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:40,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:40,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:40,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:40,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:40,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 19:43:40,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:40,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:40,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:40,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:40,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:40,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 19:43:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:40,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:40,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:40,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 19:43:40,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:40,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-27 19:43:40,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:40,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:40,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 19:43:40,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:43:40,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:40,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:43:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:40,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:40,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:40,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 19:43:40,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:40,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 19:43:40,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 19:43:40,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:40,382 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 19:43:40,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1065447056] [2020-10-27 19:43:40,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:40,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 19:43:40,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671222616] [2020-10-27 19:43:40,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 19:43:40,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:40,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 19:43:40,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 19:43:40,385 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 6 states. [2020-10-27 19:43:40,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:40,690 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2020-10-27 19:43:40,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 19:43:40,691 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-10-27 19:43:40,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:40,692 INFO L225 Difference]: With dead ends: 53 [2020-10-27 19:43:40,692 INFO L226 Difference]: Without dead ends: 46 [2020-10-27 19:43:40,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-27 19:43:40,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-27 19:43:40,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2020-10-27 19:43:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-27 19:43:40,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2020-10-27 19:43:40,701 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 32 [2020-10-27 19:43:40,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:40,702 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2020-10-27 19:43:40,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 19:43:40,702 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2020-10-27 19:43:40,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-27 19:43:40,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:40,703 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 19:43:40,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 19:43:40,704 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:40,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:40,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1156198044, now seen corresponding path program 1 times [2020-10-27 19:43:40,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:40,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058322897] [2020-10-27 19:43:40,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:43:40,723 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:43:40,723 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:43:40,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 19:43:40,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:43:40 BoogieIcfgContainer [2020-10-27 19:43:40,747 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:43:40,750 INFO L168 Benchmark]: Toolchain (without parser) took 5567.65 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 132.6 MB in the beginning and 158.4 MB in the end (delta: -25.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:40,750 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 157.3 MB. Free memory is still 130.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:43:40,751 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.84 ms. Allocated memory is still 157.3 MB. Free memory was 132.1 MB in the beginning and 121.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:40,752 INFO L168 Benchmark]: Boogie Preprocessor took 100.62 ms. Allocated memory is still 157.3 MB. Free memory was 121.6 MB in the beginning and 119.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:40,753 INFO L168 Benchmark]: RCFGBuilder took 693.04 ms. Allocated memory is still 157.3 MB. Free memory was 119.8 MB in the beginning and 135.6 MB in the end (delta: -15.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:40,754 INFO L168 Benchmark]: TraceAbstraction took 4426.20 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 135.1 MB in the beginning and 158.4 MB in the end (delta: -23.3 MB). Peak memory consumption was 8.7 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:40,757 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 157.3 MB. Free memory is still 130.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 328.84 ms. Allocated memory is still 157.3 MB. Free memory was 132.1 MB in the beginning and 121.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 100.62 ms. Allocated memory is still 157.3 MB. Free memory was 121.6 MB in the beginning and 119.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 693.04 ms. Allocated memory is still 157.3 MB. Free memory was 119.8 MB in the beginning and 135.6 MB in the end (delta: -15.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4426.20 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 135.1 MB in the beginning and 158.4 MB in the end (delta: -23.3 MB). Peak memory consumption was 8.7 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 79, overapproximation of someBinaryArithmeticDOUBLEoperation at line 67. Possible FailurePath: [L66] double x = __VERIFIER_nondet_double(); [L67] double y = 0.0 / 0.0; [L74] CALL, EXPR isnan_double(x) [L18] return x != x; [L74] RET, EXPR isnan_double(x) [L74] COND TRUE !isnan_double(x) [L76] CALL, EXPR fmax_double(x, y) [L57] CALL, EXPR __fpclassify_double(x) [L29] __uint32_t msw, lsw; [L32] ieee_double_shape_type ew_u; [L33] ew_u.value = (x) [L34] EXPR ew_u.parts.msw [L34] (msw) = ew_u.parts.msw [L35] EXPR ew_u.parts.lsw [L35] (lsw) = ew_u.parts.lsw [L38-L39] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L41-L42] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L44-L45] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L48-L49] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L52] return 0; [L57] RET, EXPR __fpclassify_double(x) [L57] COND TRUE __fpclassify_double(x) == 0 [L58] return y; [L76] RET, EXPR fmax_double(x, y) [L76] double res = fmax_double(x, y); [L79] COND TRUE res != x [L80] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1251b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 223 SDtfs, 86 SDslu, 431 SDs, 0 SdLazy, 350 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 182 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 13321 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...