/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1210.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 12:55:26,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 12:55:26,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 12:55:26,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 12:55:26,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 12:55:26,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 12:55:26,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 12:55:26,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 12:55:26,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 12:55:26,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 12:55:26,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 12:55:26,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 12:55:26,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 12:55:26,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 12:55:26,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 12:55:26,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 12:55:26,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 12:55:26,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 12:55:26,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 12:55:26,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 12:55:26,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 12:55:26,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 12:55:26,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 12:55:26,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 12:55:26,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 12:55:26,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 12:55:26,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 12:55:26,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 12:55:26,109 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 12:55:26,143 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 12:55:26,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 12:55:26,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 12:55:26,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 12:55:26,148 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 12:55:26,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 12:55:26,148 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 12:55:26,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 12:55:26,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 12:55:26,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 12:55:26,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 12:55:26,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 12:55:26,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 12:55:26,150 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 12:55:26,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 12:55:26,150 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 12:55:26,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 12:55:26,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 12:55:26,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 12:55:26,151 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 12:55:26,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 12:55:26,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:55:26,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 12:55:26,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 12:55:26,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 12:55:26,153 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 12:55:26,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:55:26,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 12:55:26,153 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 12:55:26,154 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 12:55:26,439 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 12:55:26,452 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 12:55:26,455 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 12:55:26,456 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 12:55:26,457 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 12:55:26,457 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1210.c [2020-07-21 12:55:26,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfe12bcdd/211d2bb752cd4c8f96ead91402e1d1a6/FLAG54aa97921 [2020-07-21 12:55:26,974 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 12:55:26,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1210.c [2020-07-21 12:55:26,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfe12bcdd/211d2bb752cd4c8f96ead91402e1d1a6/FLAG54aa97921 [2020-07-21 12:55:27,330 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfe12bcdd/211d2bb752cd4c8f96ead91402e1d1a6 [2020-07-21 12:55:27,339 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 12:55:27,342 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 12:55:27,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 12:55:27,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 12:55:27,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 12:55:27,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:55:27" (1/1) ... [2020-07-21 12:55:27,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae878bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:27, skipping insertion in model container [2020-07-21 12:55:27,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:55:27" (1/1) ... [2020-07-21 12:55:27,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 12:55:27,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 12:55:27,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:55:27,625 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 12:55:27,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:55:27,768 INFO L208 MainTranslator]: Completed translation [2020-07-21 12:55:27,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:27 WrapperNode [2020-07-21 12:55:27,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 12:55:27,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 12:55:27,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 12:55:27,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 12:55:27,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:27" (1/1) ... [2020-07-21 12:55:27,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:27" (1/1) ... [2020-07-21 12:55:27,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:27" (1/1) ... [2020-07-21 12:55:27,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:27" (1/1) ... [2020-07-21 12:55:27,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:27" (1/1) ... [2020-07-21 12:55:27,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:27" (1/1) ... [2020-07-21 12:55:27,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:27" (1/1) ... [2020-07-21 12:55:27,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 12:55:27,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 12:55:27,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 12:55:27,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 12:55:27,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:27" (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 [2020-07-21 12:55:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 12:55:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 12:55:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-21 12:55:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_double [2020-07-21 12:55:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 12:55:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 12:55:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-21 12:55:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure modf_double [2020-07-21 12:55:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 12:55:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-21 12:55:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 12:55:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 12:55:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 12:55:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-21 12:55:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 12:55:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 12:55:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 12:55:28,403 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 12:55:28,403 INFO L295 CfgBuilder]: Removed 20 assume(true) statements. [2020-07-21 12:55:28,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:55:28 BoogieIcfgContainer [2020-07-21 12:55:28,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 12:55:28,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 12:55:28,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 12:55:28,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 12:55:28,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:55:27" (1/3) ... [2020-07-21 12:55:28,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35dd71f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:55:28, skipping insertion in model container [2020-07-21 12:55:28,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:55:27" (2/3) ... [2020-07-21 12:55:28,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35dd71f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:55:28, skipping insertion in model container [2020-07-21 12:55:28,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:55:28" (3/3) ... [2020-07-21 12:55:28,418 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2020-07-21 12:55:28,428 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 12:55:28,436 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 12:55:28,450 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 12:55:28,474 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 12:55:28,475 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 12:55:28,475 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 12:55:28,475 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 12:55:28,475 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 12:55:28,475 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 12:55:28,476 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 12:55:28,476 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 12:55:28,495 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2020-07-21 12:55:28,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-21 12:55:28,503 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:55:28,504 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] [2020-07-21 12:55:28,504 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:55:28,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:55:28,511 INFO L82 PathProgramCache]: Analyzing trace with hash 204549601, now seen corresponding path program 1 times [2020-07-21 12:55:28,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:55:28,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516196236] [2020-07-21 12:55:28,521 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:55:28,680 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 12:55:28,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:55:28,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 12:55:28,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:55:28,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:55:28,714 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:55:28,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516196236] [2020-07-21 12:55:28,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:55:28,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 12:55:28,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610428225] [2020-07-21 12:55:28,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 12:55:28,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:55:28,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 12:55:28,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:55:28,739 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2020-07-21 12:55:28,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:55:28,768 INFO L93 Difference]: Finished difference Result 108 states and 162 transitions. [2020-07-21 12:55:28,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 12:55:28,770 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2020-07-21 12:55:28,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:55:28,781 INFO L225 Difference]: With dead ends: 108 [2020-07-21 12:55:28,781 INFO L226 Difference]: Without dead ends: 54 [2020-07-21 12:55:28,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:55:28,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-07-21 12:55:28,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-07-21 12:55:28,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-07-21 12:55:28,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2020-07-21 12:55:28,830 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 25 [2020-07-21 12:55:28,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:55:28,831 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2020-07-21 12:55:28,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 12:55:28,831 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2020-07-21 12:55:28,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-21 12:55:28,834 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:55:28,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:55:29,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:55:29,049 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:55:29,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:55:29,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1987482264, now seen corresponding path program 1 times [2020-07-21 12:55:29,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:55:29,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [514309799] [2020-07-21 12:55:29,051 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:55:29,155 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:55:29,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:55:29,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:55:29,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:55:29,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:55:29,180 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:55:29,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [514309799] [2020-07-21 12:55:29,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:55:29,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:55:29,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507714058] [2020-07-21 12:55:29,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:55:29,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:55:29,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:55:29,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:55:29,184 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 3 states. [2020-07-21 12:55:29,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:55:29,202 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2020-07-21 12:55:29,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:55:29,203 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-07-21 12:55:29,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:55:29,205 INFO L225 Difference]: With dead ends: 57 [2020-07-21 12:55:29,205 INFO L226 Difference]: Without dead ends: 54 [2020-07-21 12:55:29,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:55:29,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-07-21 12:55:29,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-07-21 12:55:29,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-07-21 12:55:29,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2020-07-21 12:55:29,215 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 27 [2020-07-21 12:55:29,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:55:29,217 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2020-07-21 12:55:29,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:55:29,218 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2020-07-21 12:55:29,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-21 12:55:29,219 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:55:29,219 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:55:29,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:55:29,423 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:55:29,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:55:29,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1590755806, now seen corresponding path program 1 times [2020-07-21 12:55:29,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:55:29,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [741350779] [2020-07-21 12:55:29,424 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:55:29,538 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:55:29,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 12:55:29,538 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 12:55:29,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 12:55:29,565 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 12:55:29,618 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 12:55:29,619 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 12:55:29,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:55:29,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:55:29 BoogieIcfgContainer [2020-07-21 12:55:29,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 12:55:29,873 INFO L168 Benchmark]: Toolchain (without parser) took 2531.80 ms. Allocated memory was 146.8 MB in the beginning and 233.3 MB in the end (delta: 86.5 MB). Free memory was 103.9 MB in the beginning and 184.8 MB in the end (delta: -81.0 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. [2020-07-21 12:55:29,874 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 12:55:29,875 INFO L168 Benchmark]: CACSL2BoogieTranslator took 425.38 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 103.6 MB in the beginning and 180.7 MB in the end (delta: -77.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2020-07-21 12:55:29,877 INFO L168 Benchmark]: Boogie Preprocessor took 57.54 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 178.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-07-21 12:55:29,878 INFO L168 Benchmark]: RCFGBuilder took 582.76 ms. Allocated memory is still 203.4 MB. Free memory was 178.1 MB in the beginning and 146.3 MB in the end (delta: 31.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. [2020-07-21 12:55:29,878 INFO L168 Benchmark]: TraceAbstraction took 1460.03 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 145.6 MB in the beginning and 184.8 MB in the end (delta: -39.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 12:55:29,882 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 425.38 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 103.6 MB in the beginning and 180.7 MB in the end (delta: -77.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 57.54 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 178.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 582.76 ms. Allocated memory is still 203.4 MB. Free memory was 178.1 MB in the beginning and 146.3 MB in the end (delta: 31.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1460.03 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 145.6 MB in the beginning and 184.8 MB in the end (delta: -39.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 116, overapproximation of bitwiseAnd at line 33. Possible FailurePath: [L17] static const double one_modf = 1.0; VAL [\old(one_modf)=0, one_modf=1] [L116] double x = 0.0 / 0.0; [L117] double iptr; VAL [iptr={4:0}, one_modf=1] [L118] CALL, EXPR modf_double(x, &iptr) VAL [\old(x)=2, iptr={4:0}, one_modf=1] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [\old(x)=2, iptr={4:0}, iptr={4:0}, one_modf=1, x=2] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=2, i0=0, i1=0, iptr={4:0}, iptr={4:0}, one_modf=1, x=2] [L29] COND TRUE j0 < 20 VAL [\old(x)=2, i0=0, i1=0, iptr={4:0}, iptr={4:0}, j0=-1, one_modf=1, x=2] [L30] COND TRUE j0 < 0 VAL [\old(x)=2, i0=0, i1=0, iptr={4:0}, iptr={4:0}, j0=-1, one_modf=1, x=2] [L32] ieee_double_shape_type iw_u; [L33] iw_u.parts.msw = (i0 & 0x80000000) [L34] iw_u.parts.lsw = (0) [L35] EXPR iw_u.value [L35] (*iptr) = iw_u.value [L37] return x; VAL [\old(x)=2, \result=2, i0=0, i1=0, iptr={4:0}, iptr={4:0}, j0=-1, one_modf=1, x=2] [L118] RET, EXPR modf_double(x, &iptr) VAL [iptr={4:0}, modf_double(x, &iptr)=2, one_modf=1, x=2] [L118] double res = modf_double(x, &iptr); [L121] EXPR \read(iptr) VAL [\read(iptr)=5, iptr={4:0}, one_modf=1, res=2, x=2] [L121] CALL, EXPR isnan_double(iptr) VAL [\old(x)=5, one_modf=1] [L15] return x != x; VAL [\old(x)=5, \result=1, one_modf=1, x=5] [L121] RET, EXPR isnan_double(iptr) VAL [\read(iptr)=5, iptr={4:0}, isnan_double(iptr)=1, one_modf=1, res=2, x=2] [L121] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=5, iptr={4:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, one_modf=1, res=2, x=2] [L121] CALL, EXPR isnan_double(res) VAL [\old(x)=2, one_modf=1] [L15] return x != x; VAL [\old(x)=2, \result=0, one_modf=1, x=2] [L121] RET, EXPR isnan_double(res) VAL [\read(iptr)=5, iptr={4:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1, res=2, x=2] [L121] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=5, iptr={4:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1, res=2, x=2] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [iptr={4:0}, one_modf=1, res=2, x=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 124 SDtfs, 0 SDslu, 55 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 84 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 1278 SizeOfPredicates, 0 NumberOfNonLiveVariables, 196 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...