/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_1231b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:43:30,202 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:43:30,207 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:43:30,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:43:30,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:43:30,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:43:30,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:43:30,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:43:30,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:43:30,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:43:30,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:43:30,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:43:30,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:43:30,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:43:30,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:43:30,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:43:30,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:43:30,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:43:30,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:43:30,320 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:43:30,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:43:30,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:43:30,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:43:30,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:43:30,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:43:30,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:43:30,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:43:30,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:43:30,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:43:30,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:43:30,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:43:30,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:43:30,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:43:30,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:43:30,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:43:30,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:43:30,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:43:30,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:43:30,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:43:30,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:43:30,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:43:30,374 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 19:43:30,419 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:43:30,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:43:30,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:43:30,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:43:30,421 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:43:30,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:43:30,422 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:43:30,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:43:30,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:43:30,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:43:30,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:43:30,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:43:30,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:43:30,423 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:43:30,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:43:30,424 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:43:30,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:43:30,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:43:30,424 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:43:30,425 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:43:30,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:43:30,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:43:30,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:43:30,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:43:30,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:43:30,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:43:30,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:43:30,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:43:30,426 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:43:30,427 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:43:30,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:43:30,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:43:30,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:43:30,899 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:43:30,899 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:43:30,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1231b.c [2020-10-27 19:43:30,974 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d2ada8783/bd58b5848d31496580a74ec704afc83a/FLAG22190b68a [2020-10-27 19:43:31,604 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:43:31,605 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1231b.c [2020-10-27 19:43:31,614 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d2ada8783/bd58b5848d31496580a74ec704afc83a/FLAG22190b68a [2020-10-27 19:43:31,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d2ada8783/bd58b5848d31496580a74ec704afc83a [2020-10-27 19:43:31,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:43:31,978 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:43:31,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:31,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:43:31,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:43:31,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:31" (1/1) ... [2020-10-27 19:43:31,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30d2feda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:31, skipping insertion in model container [2020-10-27 19:43:31,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:31" (1/1) ... [2020-10-27 19:43:31,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:43:32,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:43:32,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:32,203 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:43:32,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:32,254 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:43:32,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:32 WrapperNode [2020-10-27 19:43:32,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:32,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:43:32,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:43:32,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:43:32,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:32" (1/1) ... [2020-10-27 19:43:32,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:32" (1/1) ... [2020-10-27 19:43:32,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:32" (1/1) ... [2020-10-27 19:43:32,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:32" (1/1) ... [2020-10-27 19:43:32,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:32" (1/1) ... [2020-10-27 19:43:32,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:32" (1/1) ... [2020-10-27 19:43:32,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:32" (1/1) ... [2020-10-27 19:43:32,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:43:32,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:43:32,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:43:32,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:43:32,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:32" (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 19:43:32,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:43:32,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:43:32,401 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:43:32,401 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-27 19:43:32,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-10-27 19:43:32,402 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-10-27 19:43:32,402 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:43:32,402 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:43:32,403 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:43:32,403 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:43:32,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:43:32,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 19:43:32,404 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-27 19:43:32,405 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-10-27 19:43:32,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:43:32,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:43:32,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:43:32,406 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-10-27 19:43:32,407 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:43:32,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:43:32,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:43:32,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:43:32,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:43:32,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:43:33,151 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:43:33,151 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-27 19:43:33,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:33 BoogieIcfgContainer [2020-10-27 19:43:33,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:43:33,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:43:33,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:43:33,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:43:33,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:43:31" (1/3) ... [2020-10-27 19:43:33,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14555773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:33, skipping insertion in model container [2020-10-27 19:43:33,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:32" (2/3) ... [2020-10-27 19:43:33,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14555773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:33, skipping insertion in model container [2020-10-27 19:43:33,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:33" (3/3) ... [2020-10-27 19:43:33,166 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1231b.c [2020-10-27 19:43:33,190 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:43:33,197 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:43:33,212 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:43:33,259 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:43:33,260 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:43:33,260 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:43:33,260 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:43:33,260 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:43:33,260 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:43:33,261 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:43:33,261 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:43:33,287 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-10-27 19:43:33,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-27 19:43:33,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:33,299 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 19:43:33,299 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:33,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:33,309 INFO L82 PathProgramCache]: Analyzing trace with hash 934597240, now seen corresponding path program 1 times [2020-10-27 19:43:33,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:33,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2032475258] [2020-10-27 19:43:33,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:33,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:33,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:34,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:34,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-27 19:43:34,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:43:34,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 547 [2020-10-27 19:43:34,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:34,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:34,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 19:43:34,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:43:34,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 19:43:34,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:34,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:34,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:34,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:34,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:34,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 19:43:34,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:34,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:34,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:34,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:34,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:34,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:43:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:34,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:34,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:34,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:34,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:34,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 19:43:34,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:34,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:34,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:34,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:34,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:34,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 19:43:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:34,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:34,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:34,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:34,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 19:43:34,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:43:34,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-27 19:43:34,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:34,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:34,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 19:43:34,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:43:34,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:34,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:43:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:34,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:34,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:34,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:34,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:43:34,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:43:34,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 19:43:34,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:34,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:34,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 19:43:34,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:34,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:43:34,357 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 19:43:34,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2032475258] [2020-10-27 19:43:34,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:34,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 19:43:34,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718841768] [2020-10-27 19:43:34,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 19:43:34,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:34,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 19:43:34,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:43:34,388 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 5 states. [2020-10-27 19:43:34,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:34,746 INFO L93 Difference]: Finished difference Result 77 states and 100 transitions. [2020-10-27 19:43:34,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:43:34,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-27 19:43:34,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:34,759 INFO L225 Difference]: With dead ends: 77 [2020-10-27 19:43:34,759 INFO L226 Difference]: Without dead ends: 38 [2020-10-27 19:43:34,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 19:43:34,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-27 19:43:34,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-27 19:43:34,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-27 19:43:34,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2020-10-27 19:43:34,819 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 28 [2020-10-27 19:43:34,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:34,819 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2020-10-27 19:43:34,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 19:43:34,820 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2020-10-27 19:43:34,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-27 19:43:34,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:34,822 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 19:43:34,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:43:34,823 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:34,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:34,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1476196537, now seen corresponding path program 1 times [2020-10-27 19:43:34,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:34,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1161577919] [2020-10-27 19:43:34,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:34,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:35,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:35,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-27 19:43:35,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:35,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-27 19:43:35,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:35,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:35,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-27 19:43:35,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:43:35,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:43:35,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:35,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:35,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:35,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:35,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:35,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 19:43:35,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:35,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:35,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:35,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:35,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:35,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:43:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:35,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:35,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:35,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:35,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:35,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 19:43:35,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:35,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:35,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:35,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:35,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:43:35,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 19:43:35,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:35,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:35,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:35,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 19:43:35,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:35,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-27 19:43:35,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:35,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:35,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 19:43:35,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:43:35,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:35,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:43:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:35,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:35,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:35,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 19:43:35,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:35,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-27 19:43:35,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:35,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:35,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:35,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 19:43:35,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:35,276 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 19:43:35,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1161577919] [2020-10-27 19:43:35,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:35,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 19:43:35,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377566195] [2020-10-27 19:43:35,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 19:43:35,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:35,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 19:43:35,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 19:43:35,281 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 6 states. [2020-10-27 19:43:35,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:35,512 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2020-10-27 19:43:35,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 19:43:35,513 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-10-27 19:43:35,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:35,516 INFO L225 Difference]: With dead ends: 49 [2020-10-27 19:43:35,516 INFO L226 Difference]: Without dead ends: 42 [2020-10-27 19:43:35,518 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 19:43:35,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-27 19:43:35,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-27 19:43:35,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-27 19:43:35,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2020-10-27 19:43:35,532 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 29 [2020-10-27 19:43:35,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:35,533 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2020-10-27 19:43:35,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 19:43:35,533 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2020-10-27 19:43:35,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-27 19:43:35,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:35,535 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 19:43:35,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:43:35,535 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:35,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:35,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1479577563, now seen corresponding path program 1 times [2020-10-27 19:43:35,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:35,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [807827711] [2020-10-27 19:43:35,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:35,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:35,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:35,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-27 19:43:35,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:35,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-27 19:43:35,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:35,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:35,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-27 19:43:35,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:43:35,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:35,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:35,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:35,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:35,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:35,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:35,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 19:43:35,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:35,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:35,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:35,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:35,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:35,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:43:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:35,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:35,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:35,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:35,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:35,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 19:43:35,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:35,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:35,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:35,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:35,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:43:35,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 19:43:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:35,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:35,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:35,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 19:43:35,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:35,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-27 19:43:35,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:35,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:35,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 19:43:35,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:43:35,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:35,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:43:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:35,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:36,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:36,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 19:43:36,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:36,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 19:43:36,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:36,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:36,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:36,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 19:43:36,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:36,039 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 19:43:36,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [807827711] [2020-10-27 19:43:36,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:36,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 19:43:36,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504598655] [2020-10-27 19:43:36,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 19:43:36,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:36,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 19:43:36,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 19:43:36,043 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 6 states. [2020-10-27 19:43:36,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:36,259 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2020-10-27 19:43:36,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 19:43:36,260 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-10-27 19:43:36,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:36,261 INFO L225 Difference]: With dead ends: 53 [2020-10-27 19:43:36,261 INFO L226 Difference]: Without dead ends: 46 [2020-10-27 19:43:36,262 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 19:43:36,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-27 19:43:36,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2020-10-27 19:43:36,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-27 19:43:36,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2020-10-27 19:43:36,272 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 30 [2020-10-27 19:43:36,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:36,273 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2020-10-27 19:43:36,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 19:43:36,273 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2020-10-27 19:43:36,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-27 19:43:36,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:36,275 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 19:43:36,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 19:43:36,275 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:36,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:36,276 INFO L82 PathProgramCache]: Analyzing trace with hash 21423307, now seen corresponding path program 1 times [2020-10-27 19:43:36,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:36,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821429970] [2020-10-27 19:43:36,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:36,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:36,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:36,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 19:43:36,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:36,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-27 19:43:36,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:36,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:36,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-27 19:43:36,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:43:36,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:36,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:36,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:36,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:36,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:36,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:36,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 19:43:36,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:36,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:36,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:36,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:36,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:36,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:43:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:36,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:36,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:36,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:36,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:36,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 19:43:36,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:36,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:36,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:36,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:36,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:36,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 19:43:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:36,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:36,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:36,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 19:43:36,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:36,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-27 19:43:36,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:36,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:36,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 19:43:36,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:43:36,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:36,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:43:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:36,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:36,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:36,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 19:43:36,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:36,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 19:43:36,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:36,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:36,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:36,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 19:43:36,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:36,583 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 19:43:36,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821429970] [2020-10-27 19:43:36,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:36,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 19:43:36,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368935213] [2020-10-27 19:43:36,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 19:43:36,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:36,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 19:43:36,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 19:43:36,586 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 6 states. [2020-10-27 19:43:36,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:36,828 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2020-10-27 19:43:36,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 19:43:36,829 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-10-27 19:43:36,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:36,830 INFO L225 Difference]: With dead ends: 53 [2020-10-27 19:43:36,830 INFO L226 Difference]: Without dead ends: 46 [2020-10-27 19:43:36,831 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 19:43:36,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-27 19:43:36,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2020-10-27 19:43:36,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-27 19:43:36,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2020-10-27 19:43:36,840 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 31 [2020-10-27 19:43:36,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:36,841 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2020-10-27 19:43:36,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 19:43:36,841 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2020-10-27 19:43:36,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-27 19:43:36,842 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:36,843 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 19:43:36,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 19:43:36,843 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:36,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:36,844 INFO L82 PathProgramCache]: Analyzing trace with hash -829556513, now seen corresponding path program 1 times [2020-10-27 19:43:36,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:36,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207848389] [2020-10-27 19:43:36,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:36,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:36,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:36,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 19:43:36,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:36,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-27 19:43:36,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:36,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:36,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-27 19:43:36,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:43:36,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:36,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:36,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:37,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:37,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:37,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:37,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 19:43:37,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:37,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:37,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:37,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:37,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:37,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:43:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:37,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:37,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:37,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:37,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:37,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 19:43:37,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:37,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:37,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:37,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:37,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:37,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 19:43:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:37,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:37,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:37,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 19:43:37,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:37,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 19:43:37,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:37,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:37,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 19:43:37,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 19:43:37,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:37,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 19:43:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:37,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:37,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:37,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 19:43:37,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:37,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 19:43:37,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:37,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 19:43:37,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:37,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 19:43:37,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:37,147 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 19:43:37,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207848389] [2020-10-27 19:43:37,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:37,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 19:43:37,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343966545] [2020-10-27 19:43:37,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 19:43:37,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:37,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 19:43:37,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 19:43:37,149 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 6 states. [2020-10-27 19:43:37,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:37,330 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2020-10-27 19:43:37,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 19:43:37,331 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-10-27 19:43:37,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:37,332 INFO L225 Difference]: With dead ends: 53 [2020-10-27 19:43:37,332 INFO L226 Difference]: Without dead ends: 46 [2020-10-27 19:43:37,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-27 19:43:37,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-27 19:43:37,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2020-10-27 19:43:37,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-27 19:43:37,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2020-10-27 19:43:37,341 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 32 [2020-10-27 19:43:37,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:37,341 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2020-10-27 19:43:37,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 19:43:37,341 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2020-10-27 19:43:37,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-27 19:43:37,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:37,342 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 19:43:37,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 19:43:37,343 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:37,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:37,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1668459424, now seen corresponding path program 1 times [2020-10-27 19:43:37,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:37,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1027639389] [2020-10-27 19:43:37,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:43:37,380 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:43:37,380 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:43:37,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 19:43:37,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:43:37 BoogieIcfgContainer [2020-10-27 19:43:37,406 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:43:37,410 INFO L168 Benchmark]: Toolchain (without parser) took 5433.65 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 134.9 MB in the beginning and 169.3 MB in the end (delta: -34.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:43:37,412 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 159.4 MB. Free memory is still 134.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:43:37,414 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.64 ms. Allocated memory is still 159.4 MB. Free memory was 134.5 MB in the beginning and 123.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:37,415 INFO L168 Benchmark]: Boogie Preprocessor took 50.80 ms. Allocated memory is still 159.4 MB. Free memory was 123.9 MB in the beginning and 122.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:37,420 INFO L168 Benchmark]: RCFGBuilder took 846.24 ms. Allocated memory is still 159.4 MB. Free memory was 122.1 MB in the beginning and 142.6 MB in the end (delta: -20.5 MB). Peak memory consumption was 21.7 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:37,422 INFO L168 Benchmark]: TraceAbstraction took 4249.04 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 141.8 MB in the beginning and 169.9 MB in the end (delta: -28.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:37,426 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 159.4 MB. Free memory is still 134.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 273.64 ms. Allocated memory is still 159.4 MB. Free memory was 134.5 MB in the beginning and 123.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 50.80 ms. Allocated memory is still 159.4 MB. Free memory was 123.9 MB in the beginning and 122.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 846.24 ms. Allocated memory is still 159.4 MB. Free memory was 122.1 MB in the beginning and 142.6 MB in the end (delta: -20.5 MB). Peak memory consumption was 21.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4249.04 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 141.8 MB in the beginning and 169.9 MB in the end (delta: -28.0 MB). Peak memory consumption was 5.0 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 69, overapproximation of someBinaryArithmeticDOUBLEoperation at line 63. Possible FailurePath: [L62] double x = __VERIFIER_nondet_double(); [L63] double y = 0.0 / 0.0; [L64] CALL, EXPR isnan_double(x) [L18] return x != x; [L64] RET, EXPR isnan_double(x) [L64] COND TRUE !isnan_double(x) [L66] CALL, EXPR fmin_double(x, y) [L47] CALL, EXPR __fpclassify_double(x) [L20] __uint32_t msw, lsw; [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (msw) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lsw) = ew_u.parts.lsw [L29-L30] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L32-L33] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L35-L36] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L39-L40] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L43] return 0; [L47] RET, EXPR __fpclassify_double(x) [L47] COND TRUE __fpclassify_double(x) == 0 [L48] return y; [L66] RET, EXPR fmin_double(x, y) [L66] double res = fmin_double(x, y); [L69] COND TRUE res != x [L70] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1231b.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: 4.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.2s, 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, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s 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...