/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1231b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 10:55:27,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 10:55:27,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 10:55:27,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 10:55:27,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 10:55:27,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 10:55:27,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 10:55:27,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 10:55:27,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 10:55:27,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 10:55:27,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 10:55:27,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 10:55:27,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 10:55:27,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 10:55:27,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 10:55:27,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 10:55:27,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 10:55:27,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 10:55:27,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 10:55:27,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 10:55:27,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 10:55:27,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 10:55:27,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 10:55:27,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 10:55:27,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 10:55:27,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 10:55:27,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 10:55:27,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 10:55:27,563 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 10:55:27,581 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 10:55:27,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 10:55:27,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 10:55:27,583 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 10:55:27,583 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 10:55:27,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 10:55:27,583 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 10:55:27,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 10:55:27,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 10:55:27,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 10:55:27,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 10:55:27,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 10:55:27,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 10:55:27,585 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 10:55:27,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 10:55:27,585 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 10:55:27,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 10:55:27,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 10:55:27,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 10:55:27,586 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 10:55:27,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 10:55:27,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:55:27,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 10:55:27,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 10:55:27,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 10:55:27,587 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 10:55:27,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 10:55:27,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 10:55:27,588 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 10:55:27,588 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 10:55:27,872 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 10:55:27,892 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 10:55:27,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 10:55:27,896 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 10:55:27,896 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 10:55:27,897 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1231b.c [2020-07-07 10:55:27,961 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6cf54c6f/3f86e3bc6bef4c31b17231da68e4c9c0/FLAG8ab515623 [2020-07-07 10:55:28,425 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 10:55:28,426 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1231b.c [2020-07-07 10:55:28,434 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6cf54c6f/3f86e3bc6bef4c31b17231da68e4c9c0/FLAG8ab515623 [2020-07-07 10:55:28,804 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6cf54c6f/3f86e3bc6bef4c31b17231da68e4c9c0 [2020-07-07 10:55:28,812 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 10:55:28,814 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 10:55:28,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 10:55:28,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 10:55:28,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 10:55:28,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:55:28" (1/1) ... [2020-07-07 10:55:28,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b6cf9ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:28, skipping insertion in model container [2020-07-07 10:55:28,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:55:28" (1/1) ... [2020-07-07 10:55:28,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 10:55:28,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 10:55:29,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:55:29,039 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 10:55:29,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:55:29,169 INFO L208 MainTranslator]: Completed translation [2020-07-07 10:55:29,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:29 WrapperNode [2020-07-07 10:55:29,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 10:55:29,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 10:55:29,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 10:55:29,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 10:55:29,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:29" (1/1) ... [2020-07-07 10:55:29,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:29" (1/1) ... [2020-07-07 10:55:29,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:29" (1/1) ... [2020-07-07 10:55:29,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:29" (1/1) ... [2020-07-07 10:55:29,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:29" (1/1) ... [2020-07-07 10:55:29,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:29" (1/1) ... [2020-07-07 10:55:29,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:29" (1/1) ... [2020-07-07 10:55:29,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 10:55:29,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 10:55:29,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 10:55:29,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 10:55:29,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-07 10:55:29,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 10:55:29,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 10:55:29,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-07 10:55:29,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-07-07 10:55:29,286 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-07-07 10:55:29,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 10:55:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 10:55:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-07 10:55:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-07 10:55:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-07-07 10:55:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 10:55:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-07 10:55:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 10:55:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 10:55:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-07-07 10:55:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 10:55:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 10:55:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 10:55:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-07 10:55:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 10:55:29,642 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 10:55:29,642 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-07 10:55:29,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:55:29 BoogieIcfgContainer [2020-07-07 10:55:29,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 10:55:29,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 10:55:29,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 10:55:29,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 10:55:29,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 10:55:28" (1/3) ... [2020-07-07 10:55:29,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3175daa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:55:29, skipping insertion in model container [2020-07-07 10:55:29,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:29" (2/3) ... [2020-07-07 10:55:29,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3175daa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:55:29, skipping insertion in model container [2020-07-07 10:55:29,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:55:29" (3/3) ... [2020-07-07 10:55:29,654 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1231b.c [2020-07-07 10:55:29,664 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 10:55:29,672 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 10:55:29,685 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 10:55:29,706 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 10:55:29,706 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 10:55:29,706 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 10:55:29,707 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 10:55:29,707 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 10:55:29,707 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 10:55:29,707 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 10:55:29,707 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 10:55:29,727 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-07-07 10:55:29,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-07 10:55:29,734 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:55:29,735 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] [2020-07-07 10:55:29,736 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:55:29,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:55:29,740 INFO L82 PathProgramCache]: Analyzing trace with hash 969227935, now seen corresponding path program 1 times [2020-07-07 10:55:29,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:55:29,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006656969] [2020-07-07 10:55:29,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:55:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:29,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:30,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:55:30,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006656969] [2020-07-07 10:55:30,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:55:30,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 10:55:30,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273246773] [2020-07-07 10:55:30,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 10:55:30,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:55:30,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 10:55:30,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 10:55:30,042 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 4 states. [2020-07-07 10:55:30,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:55:30,229 INFO L93 Difference]: Finished difference Result 72 states and 94 transitions. [2020-07-07 10:55:30,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 10:55:30,231 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-07-07 10:55:30,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:55:30,241 INFO L225 Difference]: With dead ends: 72 [2020-07-07 10:55:30,242 INFO L226 Difference]: Without dead ends: 37 [2020-07-07 10:55:30,246 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 10:55:30,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-07-07 10:55:30,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-07-07 10:55:30,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-07-07 10:55:30,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2020-07-07 10:55:30,295 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 27 [2020-07-07 10:55:30,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:55:30,295 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2020-07-07 10:55:30,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 10:55:30,296 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2020-07-07 10:55:30,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-07 10:55:30,298 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:55:30,298 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] [2020-07-07 10:55:30,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 10:55:30,299 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:55:30,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:55:30,300 INFO L82 PathProgramCache]: Analyzing trace with hash 627032795, now seen corresponding path program 1 times [2020-07-07 10:55:30,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:55:30,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246202017] [2020-07-07 10:55:30,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:55:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:30,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:30,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:55:30,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246202017] [2020-07-07 10:55:30,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:55:30,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 10:55:30,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483209372] [2020-07-07 10:55:30,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:55:30,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:55:30,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:55:30,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 10:55:30,527 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 6 states. [2020-07-07 10:55:30,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:55:30,768 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2020-07-07 10:55:30,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 10:55:30,769 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-07-07 10:55:30,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:55:30,772 INFO L225 Difference]: With dead ends: 47 [2020-07-07 10:55:30,773 INFO L226 Difference]: Without dead ends: 41 [2020-07-07 10:55:30,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-07-07 10:55:30,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-07-07 10:55:30,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-07-07 10:55:30,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-07-07 10:55:30,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2020-07-07 10:55:30,786 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 28 [2020-07-07 10:55:30,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:55:30,787 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2020-07-07 10:55:30,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:55:30,787 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2020-07-07 10:55:30,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-07 10:55:30,789 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:55:30,789 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] [2020-07-07 10:55:30,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 10:55:30,789 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:55:30,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:55:30,790 INFO L82 PathProgramCache]: Analyzing trace with hash 151786008, now seen corresponding path program 1 times [2020-07-07 10:55:30,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:55:30,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161808646] [2020-07-07 10:55:30,791 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:55:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:31,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:55:31,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161808646] [2020-07-07 10:55:31,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:55:31,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 10:55:31,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648724645] [2020-07-07 10:55:31,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:55:31,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:55:31,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:55:31,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 10:55:31,040 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 6 states. [2020-07-07 10:55:31,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:55:31,243 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2020-07-07 10:55:31,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 10:55:31,244 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-07-07 10:55:31,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:55:31,246 INFO L225 Difference]: With dead ends: 51 [2020-07-07 10:55:31,246 INFO L226 Difference]: Without dead ends: 45 [2020-07-07 10:55:31,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-07-07 10:55:31,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-07-07 10:55:31,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2020-07-07 10:55:31,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-07-07 10:55:31,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2020-07-07 10:55:31,256 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 31 [2020-07-07 10:55:31,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:55:31,257 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2020-07-07 10:55:31,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:55:31,257 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2020-07-07 10:55:31,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-07 10:55:31,258 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:55:31,258 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] [2020-07-07 10:55:31,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 10:55:31,259 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:55:31,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:55:31,259 INFO L82 PathProgramCache]: Analyzing trace with hash -44727497, now seen corresponding path program 1 times [2020-07-07 10:55:31,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:55:31,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524387873] [2020-07-07 10:55:31,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:55:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:55:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:55:31,467 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-07 10:55:31,467 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 10:55:31,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 10:55:31,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 10:55:31 BoogieIcfgContainer [2020-07-07 10:55:31,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 10:55:31,504 INFO L168 Benchmark]: Toolchain (without parser) took 2689.74 ms. Allocated memory was 137.9 MB in the beginning and 233.3 MB in the end (delta: 95.4 MB). Free memory was 101.4 MB in the beginning and 129.3 MB in the end (delta: -27.9 MB). Peak memory consumption was 67.5 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:31,505 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 10:55:31,506 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.40 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 101.2 MB in the beginning and 180.3 MB in the end (delta: -79.1 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:31,507 INFO L168 Benchmark]: Boogie Preprocessor took 45.05 ms. Allocated memory is still 201.3 MB. Free memory was 180.3 MB in the beginning and 177.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:31,508 INFO L168 Benchmark]: RCFGBuilder took 430.98 ms. Allocated memory is still 201.3 MB. Free memory was 177.9 MB in the beginning and 158.4 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:31,509 INFO L168 Benchmark]: TraceAbstraction took 1853.71 ms. Allocated memory was 201.3 MB in the beginning and 233.3 MB in the end (delta: 32.0 MB). Free memory was 158.4 MB in the beginning and 129.3 MB in the end (delta: 29.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:31,513 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 355.40 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 101.2 MB in the beginning and 180.3 MB in the end (delta: -79.1 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.05 ms. Allocated memory is still 201.3 MB. Free memory was 180.3 MB in the beginning and 177.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 430.98 ms. Allocated memory is still 201.3 MB. Free memory was 177.9 MB in the beginning and 158.4 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1853.71 ms. Allocated memory was 201.3 MB in the beginning and 233.3 MB in the end (delta: 32.0 MB). Free memory was 158.4 MB in the beginning and 129.3 MB in the end (delta: 29.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 68]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 67, overapproximation of someBinaryArithmeticDOUBLEoperation at line 61. Possible FailurePath: [L60] double x = __VERIFIER_nondet_double(); [L61] double y = 0.0 / 0.0; VAL [x=4293918725] [L62] CALL, EXPR isnan_double(x) VAL [\old(x)=4293918725] [L16] return x != x; VAL [\old(x)=4293918725, \result=0, x=4293918725] [L62] RET, EXPR isnan_double(x) VAL [isnan_double(x)=0, x=4293918725] [L62] COND TRUE !isnan_double(x) [L64] CALL, EXPR fmin_double(x, y) VAL [\old(x)=4293918725, \old(y)=4293918724] [L45] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=4293918725] [L18] __uint32_t msw, lsw; VAL [\old(x)=4293918725, x=4293918725] [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (msw) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lsw) = ew_u.parts.lsw [L27-L28] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=4293918725, lsw=1, msw=4293918721, x=4293918725] [L30-L31] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=4293918725, lsw=1, msw=4293918721, x=4293918725] [L33-L34] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=4293918725, lsw=1, msw=4293918721, x=4293918725] [L37-L38] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L41] return 0; VAL [\old(x)=4293918725, \result=0, lsw=1, msw=4293918721, x=4293918725] [L45] RET, EXPR __fpclassify_double(x) VAL [\old(x)=4293918725, \old(y)=4293918724, __fpclassify_double(x)=0, x=4293918725, y=4293918724] [L45] COND TRUE __fpclassify_double(x) == 0 [L46] return y; VAL [\old(x)=4293918725, \old(y)=4293918724, \result=4293918724, x=4293918725, y=4293918724] [L64] RET, EXPR fmin_double(x, y) VAL [fmin_double(x, y)=4293918724, x=4293918725, y=4293918724] [L64] double res = fmin_double(x, y); [L67] COND TRUE res != x VAL [res=4293918724, x=4293918725, y=4293918724] [L68] __VERIFIER_error() VAL [res=4293918724, x=4293918725, y=4293918724] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 116 SDtfs, 124 SDslu, 43 SDs, 0 SdLazy, 254 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 5500 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...