/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0730a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 00:31:45,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 00:31:45,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 00:31:45,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 00:31:45,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 00:31:45,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 00:31:45,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 00:31:45,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 00:31:45,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 00:31:45,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 00:31:45,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 00:31:45,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 00:31:45,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 00:31:45,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 00:31:45,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 00:31:45,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 00:31:45,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 00:31:45,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 00:31:45,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 00:31:45,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 00:31:45,318 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 00:31:45,341 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 00:31:45,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 00:31:45,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 00:31:45,346 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 00:31:45,347 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 00:31:45,347 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 00:31:45,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 00:31:45,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 00:31:45,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 00:31:45,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 00:31:45,349 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 00:31:45,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 00:31:45,349 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 00:31:45,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 00:31:45,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 00:31:45,350 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 00:31:45,350 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 00:31:45,350 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 00:31:45,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 00:31:45,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 00:31:45,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 00:31:45,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 00:31:45,351 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 00:31:45,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 00:31:45,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 00:31:45,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 00:31:45,818 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 00:31:45,818 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 00:31:45,819 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0730a.c [2020-10-24 00:31:45,908 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb8acdb54/39c19f5e2a3a4f8eb6a7f1c76adf6b02/FLAGd24d5162f [2020-10-24 00:31:46,597 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 00:31:46,598 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0730a.c [2020-10-24 00:31:46,609 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb8acdb54/39c19f5e2a3a4f8eb6a7f1c76adf6b02/FLAGd24d5162f [2020-10-24 00:31:46,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb8acdb54/39c19f5e2a3a4f8eb6a7f1c76adf6b02 [2020-10-24 00:31:46,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 00:31:46,920 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 00:31:46,922 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 00:31:46,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 00:31:46,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 00:31:46,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:31:46" (1/1) ... [2020-10-24 00:31:46,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@617b1983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:31:46, skipping insertion in model container [2020-10-24 00:31:46,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:31:46" (1/1) ... [2020-10-24 00:31:46,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 00:31:46,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 00:31:47,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:31:47,198 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 00:31:47,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:31:47,318 INFO L208 MainTranslator]: Completed translation [2020-10-24 00:31:47,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:31:47 WrapperNode [2020-10-24 00:31:47,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 00:31:47,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 00:31:47,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 00:31:47,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 00:31:47,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:31:47" (1/1) ... [2020-10-24 00:31:47,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:31:47" (1/1) ... [2020-10-24 00:31:47,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:31:47" (1/1) ... [2020-10-24 00:31:47,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:31:47" (1/1) ... [2020-10-24 00:31:47,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:31:47" (1/1) ... [2020-10-24 00:31:47,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:31:47" (1/1) ... [2020-10-24 00:31:47,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:31:47" (1/1) ... [2020-10-24 00:31:47,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 00:31:47,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 00:31:47,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 00:31:47,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 00:31:47,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:31:47" (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 [2020-10-24 00:31:47,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 00:31:47,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 00:31:47,466 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 00:31:47,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-24 00:31:47,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2020-10-24 00:31:47,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-10-24 00:31:47,467 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 00:31:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 00:31:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 00:31:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 00:31:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 00:31:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-24 00:31:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-24 00:31:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2020-10-24 00:31:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 00:31:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 00:31:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 00:31:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 00:31:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 00:31:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-10-24 00:31:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 00:31:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 00:31:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 00:31:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 00:31:48,204 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 00:31:48,205 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-24 00:31:48,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:31:48 BoogieIcfgContainer [2020-10-24 00:31:48,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 00:31:48,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 00:31:48,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 00:31:48,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 00:31:48,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:31:46" (1/3) ... [2020-10-24 00:31:48,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1115e46b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:31:48, skipping insertion in model container [2020-10-24 00:31:48,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:31:47" (2/3) ... [2020-10-24 00:31:48,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1115e46b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:31:48, skipping insertion in model container [2020-10-24 00:31:48,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:31:48" (3/3) ... [2020-10-24 00:31:48,216 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730a.c [2020-10-24 00:31:48,228 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 00:31:48,234 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 00:31:48,247 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 00:31:48,268 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 00:31:48,268 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 00:31:48,268 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 00:31:48,268 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 00:31:48,268 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 00:31:48,268 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 00:31:48,269 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 00:31:48,269 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 00:31:48,287 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2020-10-24 00:31:48,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-24 00:31:48,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:31:48,301 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 00:31:48,302 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:31:48,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:31:48,308 INFO L82 PathProgramCache]: Analyzing trace with hash -431887694, now seen corresponding path program 1 times [2020-10-24 00:31:48,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:31:48,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20159441] [2020-10-24 00:31:48,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:31:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:31:48,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:31:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:31:48,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-24 00:31:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:31:48,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-24 00:31:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:31:48,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:31:48,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20159441] [2020-10-24 00:31:48,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:31:48,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 00:31:48,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973508553] [2020-10-24 00:31:48,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 00:31:48,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:31:48,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 00:31:48,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 00:31:48,745 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 4 states. [2020-10-24 00:31:49,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:31:49,376 INFO L93 Difference]: Finished difference Result 325 states and 387 transitions. [2020-10-24 00:31:49,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 00:31:49,378 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-24 00:31:49,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:31:49,390 INFO L225 Difference]: With dead ends: 325 [2020-10-24 00:31:49,391 INFO L226 Difference]: Without dead ends: 170 [2020-10-24 00:31:49,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 00:31:49,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-24 00:31:49,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-10-24 00:31:49,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-24 00:31:49,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 189 transitions. [2020-10-24 00:31:49,463 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 189 transitions. Word has length 53 [2020-10-24 00:31:49,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:31:49,463 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 189 transitions. [2020-10-24 00:31:49,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 00:31:49,464 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 189 transitions. [2020-10-24 00:31:49,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-24 00:31:49,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:31:49,468 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, 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, 1, 1, 1, 1, 1] [2020-10-24 00:31:49,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 00:31:49,469 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:31:49,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:31:49,470 INFO L82 PathProgramCache]: Analyzing trace with hash -868784590, now seen corresponding path program 1 times [2020-10-24 00:31:49,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:31:49,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [761751459] [2020-10-24 00:31:49,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:31:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:31:49,599 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:31:49,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:31:49,691 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:31:49,737 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-24 00:31:49,737 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 00:31:49,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 00:31:49,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:31:49 BoogieIcfgContainer [2020-10-24 00:31:49,808 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 00:31:49,811 INFO L168 Benchmark]: Toolchain (without parser) took 2894.67 ms. Allocated memory was 156.2 MB in the beginning and 199.2 MB in the end (delta: 43.0 MB). Free memory was 132.0 MB in the beginning and 138.0 MB in the end (delta: -6.0 MB). Peak memory consumption was 37.7 MB. Max. memory is 8.0 GB. [2020-10-24 00:31:49,812 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 156.2 MB. Free memory was 129.4 MB in the beginning and 129.2 MB in the end (delta: 211.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 00:31:49,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.85 ms. Allocated memory is still 156.2 MB. Free memory was 131.3 MB in the beginning and 118.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-24 00:31:49,814 INFO L168 Benchmark]: Boogie Preprocessor took 58.22 ms. Allocated memory is still 156.2 MB. Free memory was 118.6 MB in the beginning and 116.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-24 00:31:49,815 INFO L168 Benchmark]: RCFGBuilder took 827.94 ms. Allocated memory is still 156.2 MB. Free memory was 116.4 MB in the beginning and 114.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 17.7 MB. Max. memory is 8.0 GB. [2020-10-24 00:31:49,816 INFO L168 Benchmark]: TraceAbstraction took 1599.53 ms. Allocated memory was 156.2 MB in the beginning and 199.2 MB in the end (delta: 43.0 MB). Free memory was 113.5 MB in the beginning and 138.0 MB in the end (delta: -24.5 MB). Peak memory consumption was 19.0 MB. Max. memory is 8.0 GB. [2020-10-24 00:31:49,821 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 156.2 MB. Free memory was 129.4 MB in the beginning and 129.2 MB in the end (delta: 211.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 397.85 ms. Allocated memory is still 156.2 MB. Free memory was 131.3 MB in the beginning and 118.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 58.22 ms. Allocated memory is still 156.2 MB. Free memory was 118.6 MB in the beginning and 116.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 827.94 ms. Allocated memory is still 156.2 MB. Free memory was 116.4 MB in the beginning and 114.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 17.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1599.53 ms. Allocated memory was 156.2 MB in the beginning and 199.2 MB in the end (delta: 43.0 MB). Free memory was 113.5 MB in the beginning and 138.0 MB in the end (delta: -24.5 MB). Peak memory consumption was 19.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 146, overapproximation of someBinaryArithmeticDOUBLEoperation at line 38, overapproximation of bitwiseAnd at line 143. Possible FailurePath: [L22] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [\old(one_sqrt)=8589934597, \old(tiny_sqrt)=8589934608, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L157] double x = 1.0 / 0.0; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L158] CALL, EXPR __ieee754_sqrt(x) VAL [\old(x)=8589934603, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L25] double z; VAL [\old(x)=8589934603, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934603] [L26] __int32_t sign = 0x80000000; VAL [\old(x)=8589934603, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934603] [L27] __uint32_t r, t1, s1, ix1, q1; VAL [\old(x)=8589934603, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934603] [L28] __int32_t ix0, s0, q, m, t, i; VAL [\old(x)=8589934603, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934603] [L31] ieee_double_shape_type ew_u; VAL [\old(x)=8589934603, ew_u={9:0}, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934603] [L32] ew_u.value = (x) VAL [\old(x)=8589934603, ew_u={9:0}, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934603] [L33] EXPR ew_u.parts.msw VAL [\old(x)=8589934603, ew_u={9:0}, ew_u.parts.msw=8589934590, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934603] [L33] (ix0) = ew_u.parts.msw VAL [(ix0) = ew_u.parts.msw=8589934607, \old(x)=8589934603, ew_u={9:0}, ew_u.parts.msw=8589934590, ix0=-2, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934603] [L34] EXPR ew_u.parts.lsw VAL [\old(x)=8589934603, ew_u={9:0}, ew_u.parts.lsw=8589934610, ix0=-2, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934603] [L34] (ix1) = ew_u.parts.lsw VAL [(ix1) = ew_u.parts.lsw=8589934592, \old(x)=8589934603, ew_u={9:0}, ew_u.parts.lsw=8589934610, ix0=-2, ix1=8589934610, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934603] [L37] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 VAL [\old(x)=8589934603, ix0=-2, ix1=8589934610, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934603] [L38] return x * x + x; VAL [\old(x)=8589934603, ix0=-2, ix1=8589934610, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934603] [L158] RET, EXPR __ieee754_sqrt(x) VAL [__ieee754_sqrt(x)=8589934596, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934603] [L158] double res = __ieee754_sqrt(x); VAL [__ieee754_sqrt(x)=8589934596, one_sqrt=1, res=8589934596, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934603] [L161] CALL, EXPR isinf_double(res) VAL [\old(x)=8589934596, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L136] __int32_t hx, lx; VAL [\old(x)=8589934596, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934596] [L138] ieee_double_shape_type ew_u; VAL [\old(x)=8589934596, ew_u={3:0}, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934596] [L139] ew_u.value = (x) VAL [\old(x)=8589934596, ew_u={3:0}, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934596] [L140] EXPR ew_u.parts.msw VAL [\old(x)=8589934596, ew_u={3:0}, ew_u.parts.msw=4294967293, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934596] [L140] (hx) = ew_u.parts.msw VAL [\old(x)=8589934596, ew_u={3:0}, ew_u.parts.msw=4294967293, hx=-3, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934596] [L141] EXPR ew_u.parts.lsw VAL [\old(x)=8589934596, ew_u={3:0}, ew_u.parts.lsw=0, hx=-3, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934596] [L141] (lx) = ew_u.parts.lsw VAL [\old(x)=8589934596, ew_u={3:0}, ew_u.parts.lsw=0, hx=-3, lx=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934596] [L143] hx &= 0x7fffffff VAL [\old(x)=8589934596, lx=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934596] [L144] hx |= (__uint32_t)(lx | (-lx)) >> 31 VAL [\old(x)=8589934596, hx=-1, lx=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934596] [L145] hx = 0x7ff00000 - hx VAL [\old(x)=8589934596, hx=2146435073, lx=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934596] [L146] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=8589934596, \result=0, hx=2146435073, lx=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934596] [L161] RET, EXPR isinf_double(res) VAL [isinf_double(res)=0, one_sqrt=1, res=8589934596, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934603] [L161] COND TRUE !isinf_double(res) VAL [isinf_double(res)=0, one_sqrt=1, res=8589934596, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934603] [L162] CALL reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L3] __assert_fail("0", "double_req_bl_0730a.c", 3, "reach_error") VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 183 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 192 SDtfs, 39 SDslu, 144 SDs, 0 SdLazy, 200 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred 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, 0.2s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 5824 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...