/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/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/sqrt1-ll_valuebound5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-16 08:10:15,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-16 08:10:15,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-16 08:10:15,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-16 08:10:15,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-16 08:10:15,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-16 08:10:15,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-16 08:10:15,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-16 08:10:15,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-16 08:10:15,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-16 08:10:15,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-16 08:10:15,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-16 08:10:15,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-16 08:10:15,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-16 08:10:15,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-16 08:10:15,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-16 08:10:15,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-16 08:10:15,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-16 08:10:15,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-16 08:10:15,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-16 08:10:15,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-16 08:10:15,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-16 08:10:15,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-16 08:10:15,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-16 08:10:15,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-16 08:10:15,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-16 08:10:15,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-16 08:10:15,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-16 08:10:15,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-16 08:10:15,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-16 08:10:15,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-16 08:10:15,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-16 08:10:15,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-16 08:10:15,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-16 08:10:15,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-16 08:10:15,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-16 08:10:15,449 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-04-16 08:10:15,457 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-16 08:10:15,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-16 08:10:15,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-16 08:10:15,458 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-16 08:10:15,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-16 08:10:15,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-16 08:10:15,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-16 08:10:15,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-16 08:10:15,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-16 08:10:15,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-16 08:10:15,459 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-16 08:10:15,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-16 08:10:15,459 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-16 08:10:15,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-16 08:10:15,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-16 08:10:15,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-16 08:10:15,459 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-16 08:10:15,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-16 08:10:15,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 08:10:15,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-16 08:10:15,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-04-16 08:10:15,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-16 08:10:15,460 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-04-16 08:10:15,460 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-16 08:10:15,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-16 08:10:15,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-16 08:10:15,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-16 08:10:15,768 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-16 08:10:15,769 INFO L275 PluginConnector]: CDTParser initialized [2021-04-16 08:10:15,770 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/sqrt1-ll_valuebound5.c [2021-04-16 08:10:15,834 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94b5bb65c/c2908ea389df4f8ebd625f76fdfa2200/FLAGe57ed5877 [2021-04-16 08:10:16,202 INFO L306 CDTParser]: Found 1 translation units. [2021-04-16 08:10:16,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/sqrt1-ll_valuebound5.c [2021-04-16 08:10:16,214 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94b5bb65c/c2908ea389df4f8ebd625f76fdfa2200/FLAGe57ed5877 [2021-04-16 08:10:16,224 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94b5bb65c/c2908ea389df4f8ebd625f76fdfa2200 [2021-04-16 08:10:16,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-16 08:10:16,227 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-16 08:10:16,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-16 08:10:16,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-16 08:10:16,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-16 08:10:16,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 08:10:16" (1/1) ... [2021-04-16 08:10:16,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51c18dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:10:16, skipping insertion in model container [2021-04-16 08:10:16,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 08:10:16" (1/1) ... [2021-04-16 08:10:16,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-16 08:10:16,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-16 08:10:16,337 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/sqrt1-ll_valuebound5.c[520,533] [2021-04-16 08:10:16,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 08:10:16,351 INFO L203 MainTranslator]: Completed pre-run [2021-04-16 08:10:16,358 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/sqrt1-ll_valuebound5.c[520,533] [2021-04-16 08:10:16,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 08:10:16,409 INFO L208 MainTranslator]: Completed translation [2021-04-16 08:10:16,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:10:16 WrapperNode [2021-04-16 08:10:16,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-16 08:10:16,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-16 08:10:16,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-16 08:10:16,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-16 08:10:16,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:10:16" (1/1) ... [2021-04-16 08:10:16,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:10:16" (1/1) ... [2021-04-16 08:10:16,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:10:16" (1/1) ... [2021-04-16 08:10:16,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:10:16" (1/1) ... [2021-04-16 08:10:16,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:10:16" (1/1) ... [2021-04-16 08:10:16,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:10:16" (1/1) ... [2021-04-16 08:10:16,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:10:16" (1/1) ... [2021-04-16 08:10:16,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-16 08:10:16,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-16 08:10:16,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-16 08:10:16,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-16 08:10:16,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:10:16" (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 [2021-04-16 08:10:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-16 08:10:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-16 08:10:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-16 08:10:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-04-16 08:10:16,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-04-16 08:10:16,524 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-16 08:10:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-16 08:10:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-16 08:10:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-16 08:10:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-16 08:10:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-04-16 08:10:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-04-16 08:10:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-16 08:10:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-16 08:10:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-16 08:10:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-16 08:10:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-16 08:10:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-16 08:10:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-16 08:10:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-16 08:10:16,783 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-16 08:10:16,783 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-04-16 08:10:16,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 08:10:16 BoogieIcfgContainer [2021-04-16 08:10:16,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-16 08:10:16,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-16 08:10:16,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-16 08:10:16,787 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-16 08:10:16,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.04 08:10:16" (1/3) ... [2021-04-16 08:10:16,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca8901c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 08:10:16, skipping insertion in model container [2021-04-16 08:10:16,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 08:10:16" (2/3) ... [2021-04-16 08:10:16,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca8901c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 08:10:16, skipping insertion in model container [2021-04-16 08:10:16,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 08:10:16" (3/3) ... [2021-04-16 08:10:16,789 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_valuebound5.c [2021-04-16 08:10:16,805 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-04-16 08:10:16,809 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-16 08:10:16,821 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-16 08:10:16,843 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-16 08:10:16,843 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-16 08:10:16,843 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-04-16 08:10:16,843 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-16 08:10:16,843 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-16 08:10:16,843 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-16 08:10:16,844 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-16 08:10:16,844 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-16 08:10:16,857 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-04-16 08:10:16,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-04-16 08:10:16,868 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 08:10:16,869 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 08:10:16,869 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 08:10:16,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 08:10:16,873 INFO L82 PathProgramCache]: Analyzing trace with hash 326851384, now seen corresponding path program 1 times [2021-04-16 08:10:16,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 08:10:16,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1694901030] [2021-04-16 08:10:16,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 08:10:16,927 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 08:10:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:10:17,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:10:17,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:10:17,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:10:17,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:10:17,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 08:10:17,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:10:17,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:10:17,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:10:17,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-04-16 08:10:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:10:17,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:10:17,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:10:17,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:10:17,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:10:17,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 08:10:17,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1694901030] [2021-04-16 08:10:17,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 08:10:17,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-16 08:10:17,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954442416] [2021-04-16 08:10:17,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-16 08:10:17,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 08:10:17,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-16 08:10:17,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-16 08:10:17,127 INFO L87 Difference]: Start difference. First operand has 31 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-04-16 08:10:17,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 08:10:17,241 INFO L93 Difference]: Finished difference Result 53 states and 76 transitions. [2021-04-16 08:10:17,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-16 08:10:17,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-04-16 08:10:17,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 08:10:17,248 INFO L225 Difference]: With dead ends: 53 [2021-04-16 08:10:17,248 INFO L226 Difference]: Without dead ends: 26 [2021-04-16 08:10:17,252 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-16 08:10:17,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-04-16 08:10:17,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-04-16 08:10:17,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-04-16 08:10:17,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2021-04-16 08:10:17,281 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 17 [2021-04-16 08:10:17,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 08:10:17,281 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2021-04-16 08:10:17,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-04-16 08:10:17,282 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2021-04-16 08:10:17,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-04-16 08:10:17,283 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 08:10:17,283 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 08:10:17,283 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-16 08:10:17,283 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 08:10:17,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 08:10:17,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1008578050, now seen corresponding path program 1 times [2021-04-16 08:10:17,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 08:10:17,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569678495] [2021-04-16 08:10:17,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 08:10:17,286 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 08:10:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:10:17,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:10:17,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:10:17,321 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-04-16 08:10:17,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 08:10:17,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:10:17,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 08:10:17,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:10:17,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 08:10:17,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:10:17,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:10:17,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 08:10:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:10:17,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:10:17,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:10:17,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-04-16 08:10:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:10:17,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:10:17,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:10:17,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 08:10:17,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569678495] [2021-04-16 08:10:17,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 08:10:17,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-16 08:10:17,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649372824] [2021-04-16 08:10:17,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-16 08:10:17,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 08:10:17,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-16 08:10:17,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-04-16 08:10:17,374 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-04-16 08:10:17,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 08:10:17,568 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2021-04-16 08:10:17,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-16 08:10:17,568 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-04-16 08:10:17,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 08:10:17,569 INFO L225 Difference]: With dead ends: 40 [2021-04-16 08:10:17,570 INFO L226 Difference]: Without dead ends: 38 [2021-04-16 08:10:17,570 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 100.0ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-04-16 08:10:17,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-04-16 08:10:17,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2021-04-16 08:10:17,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 20 states have internal predecessors, (21), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2021-04-16 08:10:17,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2021-04-16 08:10:17,581 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 45 transitions. Word has length 17 [2021-04-16 08:10:17,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 08:10:17,605 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 45 transitions. [2021-04-16 08:10:17,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-04-16 08:10:17,605 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2021-04-16 08:10:17,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-04-16 08:10:17,606 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 08:10:17,606 INFO L519 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 08:10:17,606 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-16 08:10:17,606 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 08:10:17,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 08:10:17,607 INFO L82 PathProgramCache]: Analyzing trace with hash -789682422, now seen corresponding path program 1 times [2021-04-16 08:10:17,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 08:10:17,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [529046218] [2021-04-16 08:10:17,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 08:10:17,609 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 08:10:17,616 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2021-04-16 08:10:17,617 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-04-16 08:10:17,619 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-16 08:10:17,627 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2021-04-16 08:10:17,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 08:10:17 BoogieIcfgContainer [2021-04-16 08:10:17,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-16 08:10:17,628 INFO L168 Benchmark]: Toolchain (without parser) took 1401.28 ms. Allocated memory is still 198.2 MB. Free memory was 162.9 MB in the beginning and 178.1 MB in the end (delta: -15.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 08:10:17,628 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 198.2 MB. Free memory was 179.8 MB in the beginning and 179.7 MB in the end (delta: 164.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-04-16 08:10:17,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.15 ms. Allocated memory is still 198.2 MB. Free memory was 162.7 MB in the beginning and 181.7 MB in the end (delta: -19.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 8.0 GB. [2021-04-16 08:10:17,629 INFO L168 Benchmark]: Boogie Preprocessor took 43.07 ms. Allocated memory is still 198.2 MB. Free memory was 181.7 MB in the beginning and 180.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 08:10:17,629 INFO L168 Benchmark]: RCFGBuilder took 329.93 ms. Allocated memory is still 198.2 MB. Free memory was 180.1 MB in the beginning and 164.9 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-04-16 08:10:17,630 INFO L168 Benchmark]: TraceAbstraction took 842.10 ms. Allocated memory is still 198.2 MB. Free memory was 164.9 MB in the beginning and 178.1 MB in the end (delta: -13.1 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 08:10:17,631 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 198.2 MB. Free memory was 179.8 MB in the beginning and 179.7 MB in the end (delta: 164.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 182.15 ms. Allocated memory is still 198.2 MB. Free memory was 162.7 MB in the beginning and 181.7 MB in the end (delta: -19.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 43.07 ms. Allocated memory is still 198.2 MB. Free memory was 181.7 MB in the beginning and 180.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 329.93 ms. Allocated memory is still 198.2 MB. Free memory was 180.1 MB in the beginning and 164.9 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 842.10 ms. Allocated memory is still 198.2 MB. Free memory was 164.9 MB in the beginning and 178.1 MB in the end (delta: -13.1 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L21] int n; [L22] long long a, s, t; [L23] n = __VERIFIER_nondet_int() [L24] CALL assume_abort_if_not(n>=0 && n<=5) [L9] COND FALSE !(!cond) [L24] RET assume_abort_if_not(n>=0 && n<=5) [L26] a = 0 [L27] s = 1 [L28] t = 1 [L30] COND TRUE 1 [L31] CALL __VERIFIER_assert(t == 2*a + 1) [L12] COND FALSE !(!(cond)) [L31] RET __VERIFIER_assert(t == 2*a + 1) [L32] CALL __VERIFIER_assert(s == (a + 1) * (a + 1)) [L12] COND TRUE !(cond) [L14] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 779.1ms, OverallIterations: 3, TraceHistogramMax: 2, EmptinessCheckTime: 16.0ms, AutomataDifference: 332.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 49 SDtfs, 40 SDslu, 32 SDs, 0 SdLazy, 99 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 140.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=2, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 30.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 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...