/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/float_req_bl_1211a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 17:38:07,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 17:38:07,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 17:38:07,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 17:38:07,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 17:38:07,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 17:38:07,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 17:38:07,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 17:38:07,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 17:38:07,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 17:38:07,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 17:38:07,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 17:38:07,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 17:38:07,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 17:38:07,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 17:38:07,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 17:38:07,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 17:38:07,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 17:38:07,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 17:38:07,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 17:38:07,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 17:38:07,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 17:38:07,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 17:38:07,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 17:38:07,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 17:38:08,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 17:38:08,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 17:38:08,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 17:38:08,008 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 17:38:08,025 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 17:38:08,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 17:38:08,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 17:38:08,030 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 17:38:08,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 17:38:08,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 17:38:08,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 17:38:08,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 17:38:08,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 17:38:08,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 17:38:08,033 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 17:38:08,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 17:38:08,033 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 17:38:08,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 17:38:08,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 17:38:08,034 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 17:38:08,034 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 17:38:08,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 17:38:08,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 17:38:08,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 17:38:08,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 17:38:08,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 17:38:08,036 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 17:38:08,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 17:38:08,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 17:38:08,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 17:38:08,427 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 17:38:08,428 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 17:38:08,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1211a.c [2021-02-23 17:38:08,506 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7da5bb67a/9fb098798f144e5f992ccce4abec326a/FLAG4e0b9980a [2021-02-23 17:38:09,041 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 17:38:09,042 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1211a.c [2021-02-23 17:38:09,051 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7da5bb67a/9fb098798f144e5f992ccce4abec326a/FLAG4e0b9980a [2021-02-23 17:38:09,385 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7da5bb67a/9fb098798f144e5f992ccce4abec326a [2021-02-23 17:38:09,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 17:38:09,403 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 17:38:09,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 17:38:09,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 17:38:09,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 17:38:09,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 05:38:09" (1/1) ... [2021-02-23 17:38:09,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@571a4c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:09, skipping insertion in model container [2021-02-23 17:38:09,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 05:38:09" (1/1) ... [2021-02-23 17:38:09,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 17:38:09,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 17:38:09,645 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1211a.c[2576,2589] [2021-02-23 17:38:09,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 17:38:09,658 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 17:38:09,691 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1211a.c[2576,2589] [2021-02-23 17:38:09,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 17:38:09,709 INFO L208 MainTranslator]: Completed translation [2021-02-23 17:38:09,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:09 WrapperNode [2021-02-23 17:38:09,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 17:38:09,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 17:38:09,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 17:38:09,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 17:38:09,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:09" (1/1) ... [2021-02-23 17:38:09,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:09" (1/1) ... [2021-02-23 17:38:09,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:09" (1/1) ... [2021-02-23 17:38:09,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:09" (1/1) ... [2021-02-23 17:38:09,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:09" (1/1) ... [2021-02-23 17:38:09,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:09" (1/1) ... [2021-02-23 17:38:09,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:09" (1/1) ... [2021-02-23 17:38:09,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 17:38:09,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 17:38:09,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 17:38:09,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 17:38:09,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:09" (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 [2021-02-23 17:38:09,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 17:38:09,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 17:38:09,878 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 17:38:09,879 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_float [2021-02-23 17:38:09,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2021-02-23 17:38:09,879 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2021-02-23 17:38:09,879 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 17:38:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 17:38:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 17:38:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 17:38:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 17:38:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2021-02-23 17:38:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure modf_float [2021-02-23 17:38:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-02-23 17:38:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 17:38:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 17:38:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 17:38:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-02-23 17:38:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2021-02-23 17:38:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2021-02-23 17:38:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 17:38:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-02-23 17:38:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 17:38:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 17:38:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 17:38:10,470 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 17:38:10,470 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-02-23 17:38:10,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 05:38:10 BoogieIcfgContainer [2021-02-23 17:38:10,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 17:38:10,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 17:38:10,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 17:38:10,477 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 17:38:10,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 05:38:09" (1/3) ... [2021-02-23 17:38:10,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b179b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 05:38:10, skipping insertion in model container [2021-02-23 17:38:10,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:09" (2/3) ... [2021-02-23 17:38:10,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b179b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 05:38:10, skipping insertion in model container [2021-02-23 17:38:10,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 05:38:10" (3/3) ... [2021-02-23 17:38:10,480 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1211a.c [2021-02-23 17:38:10,488 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 17:38:10,493 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 17:38:10,512 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 17:38:10,536 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 17:38:10,536 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 17:38:10,537 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 17:38:10,537 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 17:38:10,537 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 17:38:10,537 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 17:38:10,537 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 17:38:10,537 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 17:38:10,556 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states. [2021-02-23 17:38:10,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-23 17:38:10,569 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:38:10,570 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] [2021-02-23 17:38:10,570 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:38:10,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:38:10,576 INFO L82 PathProgramCache]: Analyzing trace with hash 392038598, now seen corresponding path program 1 times [2021-02-23 17:38:10,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:38:10,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310467465] [2021-02-23 17:38:10,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:38:10,675 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:38:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:10,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:10,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:10,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:10,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:10,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:38:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:11,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:11,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:11,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-23 17:38:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:11,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:11,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:11,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:11,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:11,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-02-23 17:38:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:11,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:11,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:11,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:11,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:11,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 17:38:11,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [310467465] [2021-02-23 17:38:11,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:38:11,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 17:38:11,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455919175] [2021-02-23 17:38:11,089 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 17:38:11,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:38:11,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 17:38:11,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 17:38:11,108 INFO L87 Difference]: Start difference. First operand 159 states. Second operand 4 states. [2021-02-23 17:38:11,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:38:11,651 INFO L93 Difference]: Finished difference Result 292 states and 340 transitions. [2021-02-23 17:38:11,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 17:38:11,653 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2021-02-23 17:38:11,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:38:11,670 INFO L225 Difference]: With dead ends: 292 [2021-02-23 17:38:11,670 INFO L226 Difference]: Without dead ends: 144 [2021-02-23 17:38:11,677 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 [2021-02-23 17:38:11,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-02-23 17:38:11,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2021-02-23 17:38:11,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2021-02-23 17:38:11,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 148 transitions. [2021-02-23 17:38:11,769 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 148 transitions. Word has length 52 [2021-02-23 17:38:11,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:38:11,770 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 148 transitions. [2021-02-23 17:38:11,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 17:38:11,770 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 148 transitions. [2021-02-23 17:38:11,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-02-23 17:38:11,783 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:38:11,784 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] [2021-02-23 17:38:11,784 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 17:38:11,784 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:38:11,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:38:11,786 INFO L82 PathProgramCache]: Analyzing trace with hash 2115119569, now seen corresponding path program 1 times [2021-02-23 17:38:11,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:38:11,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [475407502] [2021-02-23 17:38:11,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:38:11,792 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:38:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:11,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:11,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:11,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:11,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-02-23 17:38:11,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:11,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:11,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:38:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:12,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:12,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:12,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-23 17:38:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:12,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:12,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:12,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-02-23 17:38:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:12,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:12,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:12,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 17:38:12,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [475407502] [2021-02-23 17:38:12,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:38:12,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-23 17:38:12,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092227542] [2021-02-23 17:38:12,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-23 17:38:12,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:38:12,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-23 17:38:12,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-23 17:38:12,100 INFO L87 Difference]: Start difference. First operand 144 states and 148 transitions. Second operand 5 states. [2021-02-23 17:38:12,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:38:12,395 INFO L93 Difference]: Finished difference Result 152 states and 155 transitions. [2021-02-23 17:38:12,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 17:38:12,396 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2021-02-23 17:38:12,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:38:12,403 INFO L225 Difference]: With dead ends: 152 [2021-02-23 17:38:12,403 INFO L226 Difference]: Without dead ends: 144 [2021-02-23 17:38:12,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-23 17:38:12,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-02-23 17:38:12,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2021-02-23 17:38:12,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2021-02-23 17:38:12,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 147 transitions. [2021-02-23 17:38:12,434 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 147 transitions. Word has length 73 [2021-02-23 17:38:12,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:38:12,434 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 147 transitions. [2021-02-23 17:38:12,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-23 17:38:12,435 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 147 transitions. [2021-02-23 17:38:12,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-02-23 17:38:12,436 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:38:12,436 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] [2021-02-23 17:38:12,436 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 17:38:12,437 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:38:12,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:38:12,437 INFO L82 PathProgramCache]: Analyzing trace with hash 370045270, now seen corresponding path program 1 times [2021-02-23 17:38:12,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:38:12,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [394201656] [2021-02-23 17:38:12,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:38:12,440 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:38:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 17:38:12,489 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 17:38:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 17:38:12,525 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 17:38:12,562 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 17:38:12,562 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 17:38:12,563 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 17:38:12,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 05:38:12 BoogieIcfgContainer [2021-02-23 17:38:12,582 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 17:38:12,584 INFO L168 Benchmark]: Toolchain (without parser) took 3194.05 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 131.5 MB in the beginning and 72.1 MB in the end (delta: 59.3 MB). Peak memory consumption was 91.2 MB. Max. memory is 8.0 GB. [2021-02-23 17:38:12,585 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 155.2 MB. Free memory is still 128.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 17:38:12,586 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.50 ms. Allocated memory is still 155.2 MB. Free memory was 130.4 MB in the beginning and 119.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-23 17:38:12,587 INFO L168 Benchmark]: Boogie Preprocessor took 70.76 ms. Allocated memory is still 155.2 MB. Free memory was 119.4 MB in the beginning and 117.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 17:38:12,587 INFO L168 Benchmark]: RCFGBuilder took 688.18 ms. Allocated memory is still 155.2 MB. Free memory was 117.2 MB in the beginning and 122.5 MB in the end (delta: -5.2 MB). Peak memory consumption was 25.7 MB. Max. memory is 8.0 GB. [2021-02-23 17:38:12,588 INFO L168 Benchmark]: TraceAbstraction took 2108.66 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 122.0 MB in the beginning and 72.1 MB in the end (delta: 49.8 MB). Peak memory consumption was 81.3 MB. Max. memory is 8.0 GB. [2021-02-23 17:38:12,592 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 155.2 MB. Free memory is still 128.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 305.50 ms. Allocated memory is still 155.2 MB. Free memory was 130.4 MB in the beginning and 119.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 70.76 ms. Allocated memory is still 155.2 MB. Free memory was 119.4 MB in the beginning and 117.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 688.18 ms. Allocated memory is still 155.2 MB. Free memory was 117.2 MB in the beginning and 122.5 MB in the end (delta: -5.2 MB). Peak memory consumption was 25.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2108.66 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 122.0 MB in the beginning and 72.1 MB in the end (delta: 49.8 MB). Peak memory consumption was 81.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 112]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 106, overapproximation of bitwiseAnd at line 95. Possible FailurePath: [L14] static const float one_modf = 1.0; [L106] float x = 1.0f / 0.0f; [L107] float iptr = __VERIFIER_nondet_float(); [L108] CALL, EXPR modf_float(x, &iptr) [L17] __int32_t i0, j0; [L18] __uint32_t i; [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (i0) = gf_u.word [L24] j0 = ((i0 >> 23) & 0xff) - 0x7f [L25] COND TRUE j0 < 23 [L26] COND TRUE j0 < 0 [L28] ieee_float_shape_type sf_u; [L29] sf_u.word = (i0 & 0x80000000) [L30] EXPR sf_u.value [L30] (*iptr) = sf_u.value [L32] return x; [L108] RET, EXPR modf_float(x, &iptr) [L108] float res = modf_float(x, &iptr); [L111] EXPR \read(iptr) [L111] CALL, EXPR isinf_float(iptr) [L89] __int32_t ix; [L91] ieee_float_shape_type gf_u; [L92] gf_u.value = (x) [L93] EXPR gf_u.word [L93] (ix) = gf_u.word [L95] ix &= 0x7fffffff [L96] return ((ix) == 0x7f800000L); [L111] RET, EXPR isinf_float(iptr) [L111] isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) [L111] EXPR res == 0.0f && __signbit_float(res) == 0 [L111] isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) [L111] COND TRUE isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) [L112] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 162 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 298 SDtfs, 42 SDslu, 309 SDs, 0 SdLazy, 402 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=159occurred 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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...