/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:24:29,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:24:29,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:24:29,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 00:24:29,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:24:29,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:24:29,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:24:29,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:24:29,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:24:29,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:24:29,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:24:29,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:24:29,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:24:29,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:24:29,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:24:29,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:24:29,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 00:24:29,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:24:29,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:24:29,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:24:29,414 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:24:29,436 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:24:29,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:24:29,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:24:29,442 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:24:29,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:24:29,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:24:29,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:24:29,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:24:29,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:24:29,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:24:29,444 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:24:29,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:24:29,444 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:24:29,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:24:29,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:24:29,445 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:24:29,445 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:24:29,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:24:29,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:24:29,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:24:29,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:24:29,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:24:29,447 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:24:29,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:24:29,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:24:29,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:24:29,888 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:24:29,888 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:24:29,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c [2020-11-07 00:24:29,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d74ba69a6/97ad2489f6a248a68c56f3982dbce5cd/FLAGf23906d44 [2020-11-07 00:24:30,699 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:24:30,700 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c [2020-11-07 00:24:30,710 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d74ba69a6/97ad2489f6a248a68c56f3982dbce5cd/FLAGf23906d44 [2020-11-07 00:24:31,031 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d74ba69a6/97ad2489f6a248a68c56f3982dbce5cd [2020-11-07 00:24:31,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:24:31,042 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:24:31,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:24:31,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:24:31,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:24:31,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:24:31" (1/1) ... [2020-11-07 00:24:31,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15773e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:31, skipping insertion in model container [2020-11-07 00:24:31,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:24:31" (1/1) ... [2020-11-07 00:24:31,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:24:31,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:24:31,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:24:31,349 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:24:31,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:24:31,397 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:24:31,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:31 WrapperNode [2020-11-07 00:24:31,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:24:31,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:24:31,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:24:31,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:24:31,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:31" (1/1) ... [2020-11-07 00:24:31,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:31" (1/1) ... [2020-11-07 00:24:31,422 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:31" (1/1) ... [2020-11-07 00:24:31,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:31" (1/1) ... [2020-11-07 00:24:31,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:31" (1/1) ... [2020-11-07 00:24:31,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:31" (1/1) ... [2020-11-07 00:24:31,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:31" (1/1) ... [2020-11-07 00:24:31,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:24:31,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:24:31,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:24:31,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:24:31,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:31" (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 [2020-11-07 00:24:31,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:24:31,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:24:31,517 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:24:31,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-11-07 00:24:31,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-11-07 00:24:31,518 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-11-07 00:24:31,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-11-07 00:24:31,518 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:24:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:24:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:24:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:24:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:24:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-11-07 00:24:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-11-07 00:24:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-11-07 00:24:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-07 00:24:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:24:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:24:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-11-07 00:24:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-11-07 00:24:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:24:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:24:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:24:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:24:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-07 00:24:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:24:31,979 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:24:31,979 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-07 00:24:31,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:24:31 BoogieIcfgContainer [2020-11-07 00:24:31,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:24:31,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:24:31,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:24:31,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:24:31,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:24:31" (1/3) ... [2020-11-07 00:24:31,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79715491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:24:31, skipping insertion in model container [2020-11-07 00:24:31,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:31" (2/3) ... [2020-11-07 00:24:31,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79715491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:24:31, skipping insertion in model container [2020-11-07 00:24:31,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:24:31" (3/3) ... [2020-11-07 00:24:31,992 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232b.c [2020-11-07 00:24:32,011 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:24:32,015 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:24:32,038 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:24:32,080 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:24:32,081 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:24:32,081 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:24:32,081 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:24:32,081 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:24:32,081 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:24:32,082 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:24:32,082 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:24:32,104 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2020-11-07 00:24:32,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-07 00:24:32,119 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:32,120 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] [2020-11-07 00:24:32,120 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:32,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:32,127 INFO L82 PathProgramCache]: Analyzing trace with hash -843828329, now seen corresponding path program 1 times [2020-11-07 00:24:32,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:32,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [122802386] [2020-11-07 00:24:32,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:32,232 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:32,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:24:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:32,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 00:24:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:32,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:24:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:32,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:24:32,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [122802386] [2020-11-07 00:24:32,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:24:32,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:24:32,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480300713] [2020-11-07 00:24:32,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:24:32,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:24:32,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:24:32,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:24:32,522 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 4 states. [2020-11-07 00:24:32,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:24:32,890 INFO L93 Difference]: Finished difference Result 185 states and 214 transitions. [2020-11-07 00:24:32,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-07 00:24:32,892 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-11-07 00:24:32,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:24:32,902 INFO L225 Difference]: With dead ends: 185 [2020-11-07 00:24:32,903 INFO L226 Difference]: Without dead ends: 93 [2020-11-07 00:24:32,907 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 [2020-11-07 00:24:32,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-11-07 00:24:32,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-11-07 00:24:32,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-11-07 00:24:32,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 101 transitions. [2020-11-07 00:24:32,970 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 101 transitions. Word has length 41 [2020-11-07 00:24:32,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:24:32,971 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 101 transitions. [2020-11-07 00:24:32,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:24:32,971 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 101 transitions. [2020-11-07 00:24:32,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-07 00:24:32,975 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:32,975 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] [2020-11-07 00:24:32,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:24:32,976 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:32,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:32,977 INFO L82 PathProgramCache]: Analyzing trace with hash 739942113, now seen corresponding path program 1 times [2020-11-07 00:24:32,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:32,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1327377634] [2020-11-07 00:24:32,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:32,982 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:33,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:24:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:33,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 00:24:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:33,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:24:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:33,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:24:33,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1327377634] [2020-11-07 00:24:33,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:24:33,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:24:33,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524325979] [2020-11-07 00:24:33,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:24:33,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:24:33,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:24:33,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:24:33,267 INFO L87 Difference]: Start difference. First operand 93 states and 101 transitions. Second operand 6 states. [2020-11-07 00:24:33,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:24:33,587 INFO L93 Difference]: Finished difference Result 130 states and 140 transitions. [2020-11-07 00:24:33,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 00:24:33,588 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-11-07 00:24:33,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:24:33,592 INFO L225 Difference]: With dead ends: 130 [2020-11-07 00:24:33,593 INFO L226 Difference]: Without dead ends: 98 [2020-11-07 00:24:33,594 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-07 00:24:33,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-11-07 00:24:33,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2020-11-07 00:24:33,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-11-07 00:24:33,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 106 transitions. [2020-11-07 00:24:33,613 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 106 transitions. Word has length 55 [2020-11-07 00:24:33,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:24:33,614 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 106 transitions. [2020-11-07 00:24:33,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:24:33,614 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 106 transitions. [2020-11-07 00:24:33,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-07 00:24:33,616 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:33,617 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] [2020-11-07 00:24:33,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:24:33,617 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:33,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:33,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1411870785, now seen corresponding path program 1 times [2020-11-07 00:24:33,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:33,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247021791] [2020-11-07 00:24:33,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:33,621 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:33,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:33,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:24:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:33,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 00:24:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:33,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:24:33,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:33,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:24:33,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247021791] [2020-11-07 00:24:33,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:24:33,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:24:33,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414154206] [2020-11-07 00:24:33,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:24:33,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:24:33,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:24:33,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:24:33,822 INFO L87 Difference]: Start difference. First operand 97 states and 106 transitions. Second operand 6 states. [2020-11-07 00:24:34,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:24:34,146 INFO L93 Difference]: Finished difference Result 134 states and 145 transitions. [2020-11-07 00:24:34,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 00:24:34,147 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-11-07 00:24:34,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:24:34,149 INFO L225 Difference]: With dead ends: 134 [2020-11-07 00:24:34,149 INFO L226 Difference]: Without dead ends: 102 [2020-11-07 00:24:34,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-07 00:24:34,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-11-07 00:24:34,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 97. [2020-11-07 00:24:34,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-11-07 00:24:34,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 106 transitions. [2020-11-07 00:24:34,166 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 106 transitions. Word has length 58 [2020-11-07 00:24:34,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:24:34,166 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 106 transitions. [2020-11-07 00:24:34,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:24:34,166 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 106 transitions. [2020-11-07 00:24:34,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-07 00:24:34,169 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:34,169 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] [2020-11-07 00:24:34,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:24:34,170 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:34,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:34,170 INFO L82 PathProgramCache]: Analyzing trace with hash -799991937, now seen corresponding path program 1 times [2020-11-07 00:24:34,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:34,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42586522] [2020-11-07 00:24:34,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:34,174 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:24:34,201 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:24:34,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:24:34,225 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:24:34,261 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:24:34,261 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:24:34,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:24:34,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:24:34 BoogieIcfgContainer [2020-11-07 00:24:34,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:24:34,284 INFO L168 Benchmark]: Toolchain (without parser) took 3245.45 ms. Allocated memory was 155.2 MB in the beginning and 197.1 MB in the end (delta: 41.9 MB). Free memory was 131.1 MB in the beginning and 146.8 MB in the end (delta: -15.7 MB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:34,284 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 155.2 MB. Free memory is still 127.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:24:34,285 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.73 ms. Allocated memory is still 155.2 MB. Free memory was 130.5 MB in the beginning and 120.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:34,286 INFO L168 Benchmark]: Boogie Preprocessor took 46.22 ms. Allocated memory is still 155.2 MB. Free memory was 120.1 MB in the beginning and 118.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:34,287 INFO L168 Benchmark]: RCFGBuilder took 535.79 ms. Allocated memory is still 155.2 MB. Free memory was 118.1 MB in the beginning and 130.1 MB in the end (delta: -12.0 MB). Peak memory consumption was 18.7 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:34,288 INFO L168 Benchmark]: TraceAbstraction took 2296.91 ms. Allocated memory was 155.2 MB in the beginning and 197.1 MB in the end (delta: 41.9 MB). Free memory was 129.5 MB in the beginning and 146.8 MB in the end (delta: -17.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:34,292 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 155.2 MB. Free memory is still 127.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 349.73 ms. Allocated memory is still 155.2 MB. Free memory was 130.5 MB in the beginning and 120.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 46.22 ms. Allocated memory is still 155.2 MB. Free memory was 120.1 MB in the beginning and 118.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 535.79 ms. Allocated memory is still 155.2 MB. Free memory was 118.1 MB in the beginning and 130.1 MB in the end (delta: -12.0 MB). Peak memory consumption was 18.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2296.91 ms. Allocated memory was 155.2 MB in the beginning and 197.1 MB in the end (delta: 41.9 MB). Free memory was 129.5 MB in the beginning and 146.8 MB in the end (delta: -17.2 MB). Peak memory consumption was 24.7 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 someBinaryDOUBLEComparisonOperation at line 81, overapproximation of someUnaryDOUBLEoperation at line 76. Possible FailurePath: [L76] double x = -0.0; [L77] double y = 0.0; [L78] CALL, EXPR fmin_double(x, y) [L48] CALL, EXPR __fpclassify_double(x) [L21] __uint32_t msw, lsw; [L24] ieee_double_shape_type ew_u; [L25] ew_u.value = (x) [L26] EXPR ew_u.parts.msw [L26] (msw) = ew_u.parts.msw [L27] EXPR ew_u.parts.lsw [L27] (lsw) = ew_u.parts.lsw [L30-L31] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L33-L34] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L36-L37] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L40-L41] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L44] return 0; [L48] RET, EXPR __fpclassify_double(x) [L48] COND TRUE __fpclassify_double(x) == 0 [L49] return y; [L78] RET, EXPR fmin_double(x, y) [L78] double res = fmin_double(x, y); [L81] EXPR res == -0.0 && __signbit_double(res) == 1 [L81] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L82] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1232b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 303 SDtfs, 65 SDslu, 540 SDs, 0 SdLazy, 408 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred 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, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...