/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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=BIGGEST --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 -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0682a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:30:59,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:30:59,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:30:59,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:30:59,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:30:59,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:30:59,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:30:59,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:30:59,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:30:59,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:30:59,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:30:59,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:30:59,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:30:59,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:30:59,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:30:59,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:30:59,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:30:59,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:30:59,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:30:59,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:30:59,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:30:59,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:30:59,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:30:59,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:30:59,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:30:59,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:30:59,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:30:59,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:30:59,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:30:59,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:30:59,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:30:59,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:30:59,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:30:59,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:30:59,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:30:59,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:30:59,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:30:59,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:30:59,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:30:59,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:30:59,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:30:59,348 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 [2020-10-12 15:30:59,371 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:30:59,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:30:59,372 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:30:59,372 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:30:59,373 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:30:59,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:30:59,373 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:30:59,373 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:30:59,373 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:30:59,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:30:59,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:30:59,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:30:59,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:30:59,374 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:30:59,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:30:59,375 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:30:59,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:30:59,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:30:59,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:30:59,375 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:30:59,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:30:59,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:30:59,376 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:30:59,376 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:30:59,376 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:30:59,377 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:30:59,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:30:59,377 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:30:59,377 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:30:59,377 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 15:30:59,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:30:59,689 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:30:59,692 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:30:59,694 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:30:59,695 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:30:59,695 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0682a.c [2020-10-12 15:30:59,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f8e03f615/c29d975f5d2d4e2696ef12b5e57fb753/FLAGb9967d0f1 [2020-10-12 15:31:00,257 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:31:00,258 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0682a.c [2020-10-12 15:31:00,267 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f8e03f615/c29d975f5d2d4e2696ef12b5e57fb753/FLAGb9967d0f1 [2020-10-12 15:31:00,590 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f8e03f615/c29d975f5d2d4e2696ef12b5e57fb753 [2020-10-12 15:31:00,601 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:31:00,603 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:31:00,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:31:00,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:31:00,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:31:00,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:31:00" (1/1) ... [2020-10-12 15:31:00,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@743cee4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:00, skipping insertion in model container [2020-10-12 15:31:00,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:31:00" (1/1) ... [2020-10-12 15:31:00,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:31:00,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:31:00,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:31:00,942 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:31:01,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:31:01,141 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:31:01,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:01 WrapperNode [2020-10-12 15:31:01,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:31:01,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:31:01,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:31:01,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:31:01,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:01" (1/1) ... [2020-10-12 15:31:01,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:01" (1/1) ... [2020-10-12 15:31:01,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:01" (1/1) ... [2020-10-12 15:31:01,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:01" (1/1) ... [2020-10-12 15:31:01,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:01" (1/1) ... [2020-10-12 15:31:01,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:01" (1/1) ... [2020-10-12 15:31:01,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:01" (1/1) ... [2020-10-12 15:31:01,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:31:01,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:31:01,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:31:01,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:31:01,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:01" (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 [2020-10-12 15:31:01,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:31:01,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:31:01,290 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-12 15:31:01,290 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-12 15:31:01,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-12 15:31:01,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-10-12 15:31:01,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-10-12 15:31:01,291 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:31:01,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:31:01,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-12 15:31:01,291 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-12 15:31:01,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 15:31:01,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-12 15:31:01,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 15:31:01,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 15:31:01,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 15:31:01,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-12 15:31:01,293 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-12 15:31:01,293 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-12 15:31:01,293 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-10-12 15:31:01,293 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-10-12 15:31:01,293 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:31:01,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:31:01,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-12 15:31:01,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:31:02,138 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:31:02,138 INFO L295 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-12 15:31:02,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:31:02 BoogieIcfgContainer [2020-10-12 15:31:02,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:31:02,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:31:02,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:31:02,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:31:02,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:31:00" (1/3) ... [2020-10-12 15:31:02,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225e236e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:31:02, skipping insertion in model container [2020-10-12 15:31:02,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:01" (2/3) ... [2020-10-12 15:31:02,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225e236e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:31:02, skipping insertion in model container [2020-10-12 15:31:02,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:31:02" (3/3) ... [2020-10-12 15:31:02,161 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0682a.c [2020-10-12 15:31:02,172 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:31:02,183 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 15:31:02,198 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 15:31:02,222 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:31:02,222 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:31:02,222 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:31:02,223 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:31:02,223 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:31:02,223 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:31:02,223 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:31:02,223 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:31:02,245 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states. [2020-10-12 15:31:02,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-12 15:31:02,253 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:31:02,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:31:02,255 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:31:02,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:31:02,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1752602122, now seen corresponding path program 1 times [2020-10-12 15:31:02,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:31:02,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [393691610] [2020-10-12 15:31:02,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:31:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:31:02,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:31:02,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:31:02,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:31:02,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:31:03,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:31:03,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 15:31:03,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:31:03,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 685 [2020-10-12 15:31:03,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:31:03,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:31:03,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 15:31:03,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:31:03,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 15:31:03,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:31:03,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:31:03,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:31:03,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:31:03,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:31:03,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:31:03,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 15:31:03,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:31:03,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:31:03,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:31:03,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:31:03,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:31:03,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:31:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:31:03,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:31:03,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:31:03,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:31:03,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:31:03,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:31:03,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 15:31:03,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:31:03,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:31:03,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:31:03,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:31:03,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:31:03,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 15:31:03,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:31:03,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:31:03,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:31:03,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:31:03,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:31:03,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 15:31:03,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:31:03,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:31:03,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:31:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:31:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:31:03,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:31:03,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:31:03,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:31:03,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [393691610] [2020-10-12 15:31:03,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:31:03,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 15:31:03,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779789091] [2020-10-12 15:31:03,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:31:03,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:31:03,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:31:03,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:31:03,341 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 5 states. [2020-10-12 15:31:03,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:31:03,859 INFO L93 Difference]: Finished difference Result 233 states and 364 transitions. [2020-10-12 15:31:03,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-12 15:31:03,861 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-12 15:31:03,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:31:03,874 INFO L225 Difference]: With dead ends: 233 [2020-10-12 15:31:03,875 INFO L226 Difference]: Without dead ends: 115 [2020-10-12 15:31:03,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:31:03,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-12 15:31:03,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-10-12 15:31:03,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-12 15:31:03,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 154 transitions. [2020-10-12 15:31:03,998 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 154 transitions. Word has length 27 [2020-10-12 15:31:03,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:31:03,999 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 154 transitions. [2020-10-12 15:31:04,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:31:04,000 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 154 transitions. [2020-10-12 15:31:04,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-12 15:31:04,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:31:04,004 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, 1, 1, 1, 1, 1, 1] [2020-10-12 15:31:04,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:31:04,013 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:31:04,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:31:04,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1682265256, now seen corresponding path program 1 times [2020-10-12 15:31:04,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:31:04,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602076607] [2020-10-12 15:31:04,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:31:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 15:31:04,138 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 15:31:04,138 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 15:31:04,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:31:04,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 03:31:04 BoogieIcfgContainer [2020-10-12 15:31:04,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 15:31:04,178 INFO L168 Benchmark]: Toolchain (without parser) took 3573.73 ms. Allocated memory was 139.5 MB in the beginning and 246.4 MB in the end (delta: 107.0 MB). Free memory was 102.6 MB in the beginning and 185.9 MB in the end (delta: -83.3 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-10-12 15:31:04,180 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-12 15:31:04,181 INFO L168 Benchmark]: CACSL2BoogieTranslator took 536.19 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 102.3 MB in the beginning and 175.5 MB in the end (delta: -73.1 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-10-12 15:31:04,182 INFO L168 Benchmark]: Boogie Preprocessor took 83.22 ms. Allocated memory is still 201.9 MB. Free memory was 175.5 MB in the beginning and 171.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2020-10-12 15:31:04,183 INFO L168 Benchmark]: RCFGBuilder took 922.16 ms. Allocated memory is still 201.9 MB. Free memory was 171.8 MB in the beginning and 122.8 MB in the end (delta: 49.0 MB). Peak memory consumption was 49.0 MB. Max. memory is 7.1 GB. [2020-10-12 15:31:04,185 INFO L168 Benchmark]: TraceAbstraction took 2022.80 ms. Allocated memory was 201.9 MB in the beginning and 246.4 MB in the end (delta: 44.6 MB). Free memory was 122.1 MB in the beginning and 185.9 MB in the end (delta: -63.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 15:31:04,194 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 536.19 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 102.3 MB in the beginning and 175.5 MB in the end (delta: -73.1 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 83.22 ms. Allocated memory is still 201.9 MB. Free memory was 175.5 MB in the beginning and 171.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 922.16 ms. Allocated memory is still 201.9 MB. Free memory was 171.8 MB in the beginning and 122.8 MB in the end (delta: 49.0 MB). Peak memory consumption was 49.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2022.80 ms. Allocated memory was 201.9 MB in the beginning and 246.4 MB in the end (delta: 44.6 MB). Free memory was 122.1 MB in the beginning and 185.9 MB in the end (delta: -63.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 285]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 162, overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryDOUBLEComparisonOperation at line 284. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L276] double x = -1.0 / 0.0; [L277] double y = __VERIFIER_nondet_double(); [L279] CALL, EXPR isinf_double(x) [L246] __int32_t hx, lx; [L248] ieee_double_shape_type ew_u; [L249] ew_u.value = (x) [L250] EXPR ew_u.parts.msw [L250] (hx) = ew_u.parts.msw [L251] EXPR ew_u.parts.lsw [L251] (lx) = ew_u.parts.lsw [L253] hx &= 0x7fffffff [L254] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L255] hx = 0x7ff00000 - hx [L256] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L279] RET, EXPR isinf_double(x) [L279] EXPR isinf_double(x) && isfinite_double(y) [L279] CALL, EXPR isfinite_double(y) [L260] __int32_t hx; [L262] ieee_double_shape_type gh_u; [L263] gh_u.value = (x) [L264] EXPR gh_u.parts.msw [L264] (hx) = gh_u.parts.msw [L266] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L279] RET, EXPR isfinite_double(y) [L279] EXPR isinf_double(x) && isfinite_double(y) [L279] COND TRUE isinf_double(x) && isfinite_double(y) && y < 0.0 [L281] CALL, EXPR __ieee754_atan2(y, x) [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; [L281] RET, EXPR __ieee754_atan2(y, x) [L281] double res = __ieee754_atan2(y, x); [L284] COND TRUE res != -pi [L285] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 120 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 154 SDtfs, 12 SDslu, 285 SDs, 0 SdLazy, 174 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 2730 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...