/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_0684b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:31:03,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:31:03,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:31:03,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:31:03,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:31:03,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:31:03,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:31:03,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:31:03,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:31:03,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:31:03,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:31:03,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:31:03,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:31:03,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:31:03,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:31:03,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:31:03,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:31:03,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:31:03,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:31:03,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:31:03,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:31:03,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:31:03,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:31:03,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:31:03,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:31:03,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:31:03,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:31:03,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:31:03,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:31:03,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:31:03,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:31:03,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:31:03,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:31:03,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:31:03,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:31:03,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:31:03,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:31:03,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:31:03,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:31:03,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:31:03,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:31:03,440 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 15:31:03,461 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:31:03,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:31:03,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:31:03,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:31:03,463 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:31:03,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:31:03,464 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:31:03,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:31:03,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:31:03,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:31:03,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:31:03,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:31:03,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:31:03,465 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:31:03,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:31:03,465 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:31:03,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:31:03,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:31:03,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:31:03,466 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:31:03,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:31:03,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:31:03,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:31:03,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:31:03,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:31:03,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:31:03,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:31:03,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:31:03,468 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:31:03,468 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 15:31:03,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:31:03,808 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:31:03,811 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:31:03,813 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:31:03,814 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:31:03,814 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0684b.c [2020-10-12 15:31:03,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c73d4239d/4358e5a78fbc4a99bcce3ebd8cc40d04/FLAG69a4853ed [2020-10-12 15:31:04,372 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:31:04,373 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0684b.c [2020-10-12 15:31:04,384 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c73d4239d/4358e5a78fbc4a99bcce3ebd8cc40d04/FLAG69a4853ed [2020-10-12 15:31:04,721 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c73d4239d/4358e5a78fbc4a99bcce3ebd8cc40d04 [2020-10-12 15:31:04,729 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:31:04,730 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:31:04,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:31:04,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:31:04,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:31:04,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:31:04" (1/1) ... [2020-10-12 15:31:04,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32b5b388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:04, skipping insertion in model container [2020-10-12 15:31:04,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:31:04" (1/1) ... [2020-10-12 15:31:04,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:31:04,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:31:05,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:31:05,166 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:31:05,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:31:05,266 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:31:05,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:05 WrapperNode [2020-10-12 15:31:05,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:31:05,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:31:05,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:31:05,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:31:05,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:05" (1/1) ... [2020-10-12 15:31:05,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:05" (1/1) ... [2020-10-12 15:31:05,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:05" (1/1) ... [2020-10-12 15:31:05,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:05" (1/1) ... [2020-10-12 15:31:05,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:05" (1/1) ... [2020-10-12 15:31:05,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:05" (1/1) ... [2020-10-12 15:31:05,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:05" (1/1) ... [2020-10-12 15:31:05,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:31:05,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:31:05,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:31:05,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:31:05,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:05" (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 15:31:05,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:31:05,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:31:05,423 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-12 15:31:05,423 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-12 15:31:05,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-12 15:31:05,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-10-12 15:31:05,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-10-12 15:31:05,425 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:31:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:31:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-12 15:31:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-12 15:31:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 15:31:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-12 15:31:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 15:31:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 15:31:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 15:31:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-12 15:31:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-12 15:31:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-12 15:31:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-10-12 15:31:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-10-12 15:31:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:31:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:31:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-12 15:31:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:31:06,187 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:31:06,187 INFO L295 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-12 15:31:06,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:31:06 BoogieIcfgContainer [2020-10-12 15:31:06,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:31:06,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:31:06,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:31:06,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:31:06,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:31:04" (1/3) ... [2020-10-12 15:31:06,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7996d3e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:31:06, skipping insertion in model container [2020-10-12 15:31:06,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:31:05" (2/3) ... [2020-10-12 15:31:06,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7996d3e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:31:06, skipping insertion in model container [2020-10-12 15:31:06,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:31:06" (3/3) ... [2020-10-12 15:31:06,203 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684b.c [2020-10-12 15:31:06,214 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:31:06,224 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 15:31:06,239 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 15:31:06,266 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:31:06,266 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:31:06,266 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:31:06,266 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:31:06,267 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:31:06,267 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:31:06,267 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:31:06,267 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:31:06,290 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states. [2020-10-12 15:31:06,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-12 15:31:06,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:31:06,300 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 15:31:06,300 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:31:06,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:31:06,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1181622730, now seen corresponding path program 1 times [2020-10-12 15:31:06,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:31:06,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1615417008] [2020-10-12 15:31:06,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:31:06,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:31:06,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:31:06,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:31:06,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:31:06,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:31:07,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:31:07,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 15:31:07,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:31:07,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 568 [2020-10-12 15:31:07,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:31:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:31:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 15:31:07,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:31:07,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 15:31:07,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:31:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:31:07,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:31:07,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:31:07,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:31:07,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:31:07,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:31:07,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:31:07,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:31:07,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:31:07,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:31:07,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:31:07,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:31:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:31:07,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:31:07,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:31:07,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:31:07,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:31:07,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:31:07,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 15:31:07,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:31:07,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:31:07,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:31:07,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:31:07,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:31:07,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 15:31:07,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:31:07,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:31:07,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:31:07,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:31:07,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:31:07,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 15:31:07,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:31:07,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:31:07,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:31:07,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:31:07,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:31:07,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:31:07,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:31:07,225 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 15:31:07,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1615417008] [2020-10-12 15:31:07,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:31:07,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 15:31:07,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530916640] [2020-10-12 15:31:07,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:31:07,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:31:07,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:31:07,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:31:07,252 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 5 states. [2020-10-12 15:31:07,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:31:07,745 INFO L93 Difference]: Finished difference Result 233 states and 364 transitions. [2020-10-12 15:31:07,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-12 15:31:07,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-12 15:31:07,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:31:07,760 INFO L225 Difference]: With dead ends: 233 [2020-10-12 15:31:07,760 INFO L226 Difference]: Without dead ends: 115 [2020-10-12 15:31:07,765 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 15:31:07,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-12 15:31:07,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-10-12 15:31:07,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-12 15:31:07,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 154 transitions. [2020-10-12 15:31:07,819 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 154 transitions. Word has length 27 [2020-10-12 15:31:07,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:31:07,820 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 154 transitions. [2020-10-12 15:31:07,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:31:07,820 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 154 transitions. [2020-10-12 15:31:07,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-12 15:31:07,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:31:07,822 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:31:07,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:31:07,823 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:31:07,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:31:07,823 INFO L82 PathProgramCache]: Analyzing trace with hash -5924694, now seen corresponding path program 1 times [2020-10-12 15:31:07,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:31:07,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700464648] [2020-10-12 15:31:07,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:31:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 15:31:07,915 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 15:31:07,915 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 15:31:07,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:31:07,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 03:31:07 BoogieIcfgContainer [2020-10-12 15:31:07,941 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 15:31:07,944 INFO L168 Benchmark]: Toolchain (without parser) took 3212.65 ms. Allocated memory was 140.5 MB in the beginning and 245.4 MB in the end (delta: 104.9 MB). Free memory was 102.6 MB in the beginning and 185.6 MB in the end (delta: -83.0 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-10-12 15:31:07,945 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-12 15:31:07,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 536.42 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.4 MB in the beginning and 175.7 MB in the end (delta: -73.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-10-12 15:31:07,947 INFO L168 Benchmark]: Boogie Preprocessor took 79.45 ms. Allocated memory is still 203.4 MB. Free memory was 175.7 MB in the beginning and 172.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-10-12 15:31:07,947 INFO L168 Benchmark]: RCFGBuilder took 845.87 ms. Allocated memory is still 203.4 MB. Free memory was 172.4 MB in the beginning and 122.7 MB in the end (delta: 49.7 MB). Peak memory consumption was 49.7 MB. Max. memory is 7.1 GB. [2020-10-12 15:31:07,948 INFO L168 Benchmark]: TraceAbstraction took 1746.30 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 122.1 MB in the beginning and 185.6 MB in the end (delta: -63.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 15:31:07,952 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 536.42 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.4 MB in the beginning and 175.7 MB in the end (delta: -73.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 79.45 ms. Allocated memory is still 203.4 MB. Free memory was 175.7 MB in the beginning and 172.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 845.87 ms. Allocated memory is still 203.4 MB. Free memory was 172.4 MB in the beginning and 122.7 MB in the end (delta: 49.7 MB). Peak memory consumption was 49.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1746.30 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 122.1 MB in the beginning and 185.6 MB in the end (delta: -63.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 286]: 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 285. 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 = __VERIFIER_nondet_double(); [L277] double y = -1.0 / 0.0; [L280] CALL, EXPR isfinite_double(x) [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); [L280] RET, EXPR isfinite_double(x) [L280] isfinite_double(x) && isinf_double(y) [L280] CALL, EXPR isinf_double(y) [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); [L280] RET, EXPR isinf_double(y) [L280] isfinite_double(x) && isinf_double(y) [L280] COND TRUE isfinite_double(x) && isinf_double(y) [L282] 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; [L282] RET, EXPR __ieee754_atan2(y, x) [L282] double res = __ieee754_atan2(y, x); [L285] COND TRUE res != -pi_o_2 [L286] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 120 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, 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, 0.2s 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, 0.7s 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...