/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1252a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 17:56:11,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 17:56:11,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 17:56:11,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 17:56:11,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 17:56:11,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 17:56:11,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 17:56:11,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 17:56:11,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 17:56:11,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 17:56:11,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 17:56:11,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2020-10-23 17:56:11,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 17:56:11,613 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 17:56:11,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 17:56:11,616 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 [2020-10-23 17:56:11,670 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 17:56:11,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 17:56:11,676 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 17:56:11,676 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 17:56:11,676 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 17:56:11,676 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 17:56:11,677 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 17:56:11,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 17:56:11,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 17:56:11,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 17:56:11,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 17:56:11,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 17:56:11,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 17:56:11,679 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 17:56:11,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 17:56:11,679 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 17:56:11,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 17:56:11,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 17:56:11,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 17:56:11,680 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 17:56:11,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 17:56:11,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 17:56:11,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 17:56:11,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 17:56:11,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 17:56:11,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 17:56:11,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 17:56:11,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 17:56:11,682 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 17:56:11,682 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 17:56:12,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 17:56:12,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 17:56:12,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 17:56:12,148 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 17:56:12,149 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 17:56:12,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1252a.c [2020-10-23 17:56:12,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f70d21001/30268ab182664051ac808c3bc68ffa03/FLAGcf9769e68 [2020-10-23 17:56:12,786 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 17:56:12,787 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1252a.c [2020-10-23 17:56:12,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f70d21001/30268ab182664051ac808c3bc68ffa03/FLAGcf9769e68 [2020-10-23 17:56:13,175 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f70d21001/30268ab182664051ac808c3bc68ffa03 [2020-10-23 17:56:13,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 17:56:13,192 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 17:56:13,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 17:56:13,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 17:56:13,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 17:56:13,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:56:13" (1/1) ... [2020-10-23 17:56:13,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@496f1359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:13, skipping insertion in model container [2020-10-23 17:56:13,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:56:13" (1/1) ... [2020-10-23 17:56:13,215 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 17:56:13,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 17:56:13,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 17:56:13,524 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 17:56:13,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 17:56:13,587 INFO L208 MainTranslator]: Completed translation [2020-10-23 17:56:13,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:13 WrapperNode [2020-10-23 17:56:13,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 17:56:13,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 17:56:13,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 17:56:13,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 17:56:13,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:13" (1/1) ... [2020-10-23 17:56:13,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:13" (1/1) ... [2020-10-23 17:56:13,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:13" (1/1) ... [2020-10-23 17:56:13,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:13" (1/1) ... [2020-10-23 17:56:13,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:13" (1/1) ... [2020-10-23 17:56:13,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:13" (1/1) ... [2020-10-23 17:56:13,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:13" (1/1) ... [2020-10-23 17:56:13,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 17:56:13,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 17:56:13,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 17:56:13,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 17:56:13,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:13" (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 [2020-10-23 17:56:13,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 17:56:13,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 17:56:13,748 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 17:56:13,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2020-10-23 17:56:13,748 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_float [2020-10-23 17:56:13,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-10-23 17:56:13,749 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 17:56:13,750 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 17:56:13,750 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 17:56:13,750 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 17:56:13,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 17:56:13,752 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2020-10-23 17:56:13,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-23 17:56:13,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 17:56:13,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 17:56:13,754 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_float [2020-10-23 17:56:13,755 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-10-23 17:56:13,755 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 17:56:13,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 17:56:13,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 17:56:13,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 17:56:13,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-23 17:56:13,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 17:56:14,376 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 17:56:14,377 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-23 17:56:14,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:56:14 BoogieIcfgContainer [2020-10-23 17:56:14,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 17:56:14,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 17:56:14,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 17:56:14,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 17:56:14,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 05:56:13" (1/3) ... [2020-10-23 17:56:14,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b6b6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:56:14, skipping insertion in model container [2020-10-23 17:56:14,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:13" (2/3) ... [2020-10-23 17:56:14,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b6b6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:56:14, skipping insertion in model container [2020-10-23 17:56:14,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:56:14" (3/3) ... [2020-10-23 17:56:14,394 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1252a.c [2020-10-23 17:56:14,412 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 17:56:14,418 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 17:56:14,433 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 17:56:14,478 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 17:56:14,479 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 17:56:14,479 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 17:56:14,479 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 17:56:14,479 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 17:56:14,479 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 17:56:14,480 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 17:56:14,480 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 17:56:14,504 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2020-10-23 17:56:14,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-23 17:56:14,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:56:14,515 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] [2020-10-23 17:56:14,515 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:56:14,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:56:14,525 INFO L82 PathProgramCache]: Analyzing trace with hash -892085035, now seen corresponding path program 1 times [2020-10-23 17:56:14,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:56:14,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072178130] [2020-10-23 17:56:14,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:56:14,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:14,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:56:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:14,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:56:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:14,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:56:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:14,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:56:14,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072178130] [2020-10-23 17:56:14,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:56:14,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 17:56:14,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251879837] [2020-10-23 17:56:14,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 17:56:14,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:56:14,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 17:56:14,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 17:56:14,847 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 4 states. [2020-10-23 17:56:15,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:56:15,042 INFO L93 Difference]: Finished difference Result 84 states and 113 transitions. [2020-10-23 17:56:15,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 17:56:15,044 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-10-23 17:56:15,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:56:15,053 INFO L225 Difference]: With dead ends: 84 [2020-10-23 17:56:15,053 INFO L226 Difference]: Without dead ends: 41 [2020-10-23 17:56:15,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 17:56:15,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-23 17:56:15,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-23 17:56:15,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-23 17:56:15,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2020-10-23 17:56:15,108 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 23 [2020-10-23 17:56:15,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:56:15,108 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2020-10-23 17:56:15,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 17:56:15,109 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2020-10-23 17:56:15,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-23 17:56:15,111 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:56:15,111 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] [2020-10-23 17:56:15,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 17:56:15,112 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:56:15,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:56:15,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1307118978, now seen corresponding path program 1 times [2020-10-23 17:56:15,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:56:15,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619880524] [2020-10-23 17:56:15,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:56:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:15,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:56:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:15,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:56:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:15,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:56:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:15,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:56:15,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619880524] [2020-10-23 17:56:15,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:56:15,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 17:56:15,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907761438] [2020-10-23 17:56:15,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 17:56:15,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:56:15,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 17:56:15,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 17:56:15,355 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 6 states. [2020-10-23 17:56:15,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:56:15,539 INFO L93 Difference]: Finished difference Result 61 states and 71 transitions. [2020-10-23 17:56:15,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 17:56:15,540 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-23 17:56:15,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:56:15,543 INFO L225 Difference]: With dead ends: 61 [2020-10-23 17:56:15,543 INFO L226 Difference]: Without dead ends: 45 [2020-10-23 17:56:15,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 17:56:15,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-23 17:56:15,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-23 17:56:15,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-23 17:56:15,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2020-10-23 17:56:15,592 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 24 [2020-10-23 17:56:15,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:56:15,593 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2020-10-23 17:56:15,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 17:56:15,593 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2020-10-23 17:56:15,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-23 17:56:15,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:56:15,596 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] [2020-10-23 17:56:15,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 17:56:15,600 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:56:15,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:56:15,601 INFO L82 PathProgramCache]: Analyzing trace with hash -2070746802, now seen corresponding path program 1 times [2020-10-23 17:56:15,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:56:15,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333875690] [2020-10-23 17:56:15,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:56:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:15,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:56:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:15,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:56:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:15,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:56:15,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:15,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:56:15,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333875690] [2020-10-23 17:56:15,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:56:15,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 17:56:15,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782865324] [2020-10-23 17:56:15,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 17:56:15,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:56:15,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 17:56:15,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 17:56:15,810 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand 6 states. [2020-10-23 17:56:15,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:56:15,967 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2020-10-23 17:56:15,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 17:56:15,967 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-10-23 17:56:15,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:56:15,969 INFO L225 Difference]: With dead ends: 65 [2020-10-23 17:56:15,969 INFO L226 Difference]: Without dead ends: 49 [2020-10-23 17:56:15,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 17:56:15,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-23 17:56:15,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2020-10-23 17:56:15,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-23 17:56:15,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2020-10-23 17:56:15,980 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 27 [2020-10-23 17:56:15,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:56:15,980 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2020-10-23 17:56:15,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 17:56:15,981 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2020-10-23 17:56:15,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-23 17:56:15,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:56:15,982 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] [2020-10-23 17:56:15,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 17:56:15,983 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:56:15,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:56:15,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1941664083, now seen corresponding path program 1 times [2020-10-23 17:56:15,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:56:15,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520542238] [2020-10-23 17:56:15,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:56:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 17:56:16,009 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 17:56:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 17:56:16,037 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 17:56:16,076 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-23 17:56:16,077 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 17:56:16,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 17:56:16,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 05:56:16 BoogieIcfgContainer [2020-10-23 17:56:16,144 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 17:56:16,148 INFO L168 Benchmark]: Toolchain (without parser) took 2962.33 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 125.1 MB in the beginning and 115.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 41.0 MB. Max. memory is 8.0 GB. [2020-10-23 17:56:16,149 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 17:56:16,150 INFO L168 Benchmark]: CACSL2BoogieTranslator took 393.66 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 114.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-23 17:56:16,151 INFO L168 Benchmark]: Boogie Preprocessor took 77.56 ms. Allocated memory is still 151.0 MB. Free memory was 114.5 MB in the beginning and 112.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-23 17:56:16,154 INFO L168 Benchmark]: RCFGBuilder took 711.79 ms. Allocated memory is still 151.0 MB. Free memory was 112.7 MB in the beginning and 131.0 MB in the end (delta: -18.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 17:56:16,157 INFO L168 Benchmark]: TraceAbstraction took 1759.89 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 130.5 MB in the beginning and 115.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 45.2 MB. Max. memory is 8.0 GB. [2020-10-23 17:56:16,166 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 393.66 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 114.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 77.56 ms. Allocated memory is still 151.0 MB. Free memory was 114.5 MB in the beginning and 112.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 711.79 ms. Allocated memory is still 151.0 MB. Free memory was 112.7 MB in the beginning and 131.0 MB in the end (delta: -18.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1759.89 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 130.5 MB in the beginning and 115.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 45.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of someUnaryFLOAToperation at line 74. Possible FailurePath: [L74] float x = -0.0f; [L75] float y = 0.0f; VAL [y=0] [L77] CALL, EXPR fmax_float(x, y) VAL [\old(x)=2139095045, \old(y)=0] [L45] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=2139095045] [L22] __uint32_t w; VAL [\old(x)=2139095045, x=2139095045] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (w) = gf_u.word [L30] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=2139095045, w=2139095041, x=2139095045] [L32-L33] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=2139095045, w=2139095041, x=2139095045] [L35-L36] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=2139095045, w=2139095041, x=2139095045] [L38] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L41] return 0; VAL [\old(x)=2139095045, \result=0, w=2139095041, x=2139095045] [L45] RET, EXPR __fpclassify_float(x) VAL [\old(x)=2139095045, \old(y)=0, __fpclassify_float(x)=0, x=2139095045, y=0] [L45] COND TRUE __fpclassify_float(x) == 0 [L46] return y; VAL [\old(x)=2139095045, \old(y)=0, \result=0, x=2139095045, y=0] [L77] RET, EXPR fmax_float(x, y) VAL [fmax_float(x, y)=0, x=2139095045, y=0] [L77] float res = fmax_float(x, y); [L80] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=0, res == 0.0f && __signbit_float(res) == 0=0, x=2139095045, y=0] [L80] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L81] CALL reach_error() [L3] __assert_fail("0", "float_req_bl_1252a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 138 SDtfs, 30 SDslu, 251 SDs, 0 SdLazy, 181 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred 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, 0.4s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 5915 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...