/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 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 13:06:26,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 13:06:26,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 13:06:26,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 13:06:26,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 13:06:26,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 13:06:26,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 13:06:26,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 13:06:26,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 13:06:26,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 13:06:26,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 13:06:26,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 13:06:26,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 13:06:26,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 13:06:26,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 13:06:26,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 13:06:26,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 13:06:26,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 13:06:26,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 13:06:26,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 13:06:26,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 13:06:26,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 13:06:26,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 13:06:26,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 13:06:26,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 13:06:26,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 13:06:26,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 13:06:26,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 13:06:26,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 13:06:26,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 13:06:26,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 13:06:26,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 13:06:26,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 13:06:26,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 13:06:26,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 13:06:26,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 13:06:26,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 13:06:26,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 13:06:26,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 13:06:26,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 13:06:26,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 13:06:26,540 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 [2020-07-20 13:06:26,563 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 13:06:26,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 13:06:26,564 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 13:06:26,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 13:06:26,565 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 13:06:26,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 13:06:26,565 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 13:06:26,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 13:06:26,566 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 13:06:26,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 13:06:26,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 13:06:26,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 13:06:26,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 13:06:26,567 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 13:06:26,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 13:06:26,568 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 13:06:26,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 13:06:26,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 13:06:26,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 13:06:26,568 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 13:06:26,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 13:06:26,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:06:26,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 13:06:26,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 13:06:26,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 13:06:26,570 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 13:06:26,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:06:26,570 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 13:06:26,571 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 13:06:26,571 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 -> 4 [2020-07-20 13:06:26,885 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 13:06:26,904 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 13:06:26,908 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 13:06:26,909 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 13:06:26,910 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 13:06:26,911 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c [2020-07-20 13:06:26,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e07b508ee/215b7dba71314ed19f44040aaff93571/FLAG00943dff0 [2020-07-20 13:06:27,430 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 13:06:27,430 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c [2020-07-20 13:06:27,437 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e07b508ee/215b7dba71314ed19f44040aaff93571/FLAG00943dff0 [2020-07-20 13:06:27,806 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e07b508ee/215b7dba71314ed19f44040aaff93571 [2020-07-20 13:06:27,818 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 13:06:27,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 13:06:27,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 13:06:27,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 13:06:27,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 13:06:27,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:06:27" (1/1) ... [2020-07-20 13:06:27,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@220182b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:06:27, skipping insertion in model container [2020-07-20 13:06:27,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:06:27" (1/1) ... [2020-07-20 13:06:27,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 13:06:27,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 13:06:28,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:06:28,089 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 13:06:28,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:06:28,247 INFO L208 MainTranslator]: Completed translation [2020-07-20 13:06:28,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:06:28 WrapperNode [2020-07-20 13:06:28,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 13:06:28,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 13:06:28,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 13:06:28,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 13:06:28,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:06:28" (1/1) ... [2020-07-20 13:06:28,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:06:28" (1/1) ... [2020-07-20 13:06:28,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:06:28" (1/1) ... [2020-07-20 13:06:28,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:06:28" (1/1) ... [2020-07-20 13:06:28,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:06:28" (1/1) ... [2020-07-20 13:06:28,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:06:28" (1/1) ... [2020-07-20 13:06:28,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:06:28" (1/1) ... [2020-07-20 13:06:28,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 13:06:28,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 13:06:28,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 13:06:28,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 13:06:28,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:06:28" (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 [2020-07-20 13:06:28,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 13:06:28,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 13:06:28,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 13:06:28,349 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2020-07-20 13:06:28,349 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2020-07-20 13:06:28,349 INFO L138 BoogieDeclarations]: Found implementation of procedure mulflt [2020-07-20 13:06:28,350 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 13:06:28,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 13:06:28,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-20 13:06:28,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-07-20 13:06:28,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 13:06:28,350 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2020-07-20 13:06:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2020-07-20 13:06:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure mulflt [2020-07-20 13:06:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 13:06:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 13:06:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 13:06:28,788 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 13:06:28,788 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-20 13:06:28,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:06:28 BoogieIcfgContainer [2020-07-20 13:06:28,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 13:06:28,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 13:06:28,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 13:06:28,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 13:06:28,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:06:27" (1/3) ... [2020-07-20 13:06:28,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9050e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:06:28, skipping insertion in model container [2020-07-20 13:06:28,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:06:28" (2/3) ... [2020-07-20 13:06:28,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9050e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:06:28, skipping insertion in model container [2020-07-20 13:06:28,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:06:28" (3/3) ... [2020-07-20 13:06:28,804 INFO L109 eAbstractionObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2020-07-20 13:06:28,811 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 13:06:28,818 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 13:06:28,830 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 13:06:28,850 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 13:06:28,850 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 13:06:28,850 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 13:06:28,850 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 13:06:28,850 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 13:06:28,850 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 13:06:28,850 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 13:06:28,851 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 13:06:28,866 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states. [2020-07-20 13:06:28,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-20 13:06:28,873 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:06:28,874 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:06:28,874 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:06:28,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:06:28,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1312098946, now seen corresponding path program 1 times [2020-07-20 13:06:28,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:06:28,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588105610] [2020-07-20 13:06:28,890 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:06:29,057 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:06:29,057 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:06:29,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-20 13:06:29,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:06:29,172 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-20 13:06:29,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 13:06:29,385 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-20 13:06:29,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1588105610] [2020-07-20 13:06:29,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 13:06:29,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2020-07-20 13:06:29,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022832431] [2020-07-20 13:06:29,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-20 13:06:29,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:06:29,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-20 13:06:29,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-07-20 13:06:29,412 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 16 states. [2020-07-20 13:06:29,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:06:29,652 INFO L93 Difference]: Finished difference Result 140 states and 211 transitions. [2020-07-20 13:06:29,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 13:06:29,654 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 34 [2020-07-20 13:06:29,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:06:29,666 INFO L225 Difference]: With dead ends: 140 [2020-07-20 13:06:29,666 INFO L226 Difference]: Without dead ends: 80 [2020-07-20 13:06:29,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2020-07-20 13:06:29,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-07-20 13:06:29,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 66. [2020-07-20 13:06:29,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-20 13:06:29,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 89 transitions. [2020-07-20 13:06:29,726 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 89 transitions. Word has length 34 [2020-07-20 13:06:29,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:06:29,727 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 89 transitions. [2020-07-20 13:06:29,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-20 13:06:29,727 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 89 transitions. [2020-07-20 13:06:29,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-20 13:06:29,730 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:06:29,731 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-07-20 13:06:29,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:06:29,947 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:06:29,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:06:29,948 INFO L82 PathProgramCache]: Analyzing trace with hash -637695571, now seen corresponding path program 1 times [2020-07-20 13:06:29,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:06:29,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [666672669] [2020-07-20 13:06:29,950 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:06:30,066 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:06:30,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:06:30,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-20 13:06:30,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:06:30,120 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-20 13:06:30,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:06:30,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [666672669] [2020-07-20 13:06:30,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:06:30,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 13:06:30,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008311274] [2020-07-20 13:06:30,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 13:06:30,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:06:30,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 13:06:30,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:06:30,124 INFO L87 Difference]: Start difference. First operand 66 states and 89 transitions. Second operand 8 states. [2020-07-20 13:06:30,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:06:30,211 INFO L93 Difference]: Finished difference Result 121 states and 160 transitions. [2020-07-20 13:06:30,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 13:06:30,212 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2020-07-20 13:06:30,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:06:30,215 INFO L225 Difference]: With dead ends: 121 [2020-07-20 13:06:30,215 INFO L226 Difference]: Without dead ends: 89 [2020-07-20 13:06:30,217 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-07-20 13:06:30,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-07-20 13:06:30,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 74. [2020-07-20 13:06:30,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-07-20 13:06:30,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 97 transitions. [2020-07-20 13:06:30,237 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 97 transitions. Word has length 38 [2020-07-20 13:06:30,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:06:30,238 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 97 transitions. [2020-07-20 13:06:30,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 13:06:30,238 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 97 transitions. [2020-07-20 13:06:30,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-20 13:06:30,241 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:06:30,241 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-07-20 13:06:30,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:06:30,452 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:06:30,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:06:30,453 INFO L82 PathProgramCache]: Analyzing trace with hash 2083243036, now seen corresponding path program 1 times [2020-07-20 13:06:30,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:06:30,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83508583] [2020-07-20 13:06:30,454 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:06:30,509 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 13:06:30,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:06:30,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 13:06:30,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:06:30,585 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-20 13:06:30,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 13:06:30,708 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-20 13:06:30,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83508583] [2020-07-20 13:06:30,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 13:06:30,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2020-07-20 13:06:30,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562096526] [2020-07-20 13:06:30,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-20 13:06:30,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:06:30,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-20 13:06:30,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-20 13:06:30,715 INFO L87 Difference]: Start difference. First operand 74 states and 97 transitions. Second operand 9 states. [2020-07-20 13:06:30,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:06:30,958 INFO L93 Difference]: Finished difference Result 137 states and 182 transitions. [2020-07-20 13:06:30,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 13:06:30,959 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2020-07-20 13:06:30,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:06:30,962 INFO L225 Difference]: With dead ends: 137 [2020-07-20 13:06:30,962 INFO L226 Difference]: Without dead ends: 114 [2020-07-20 13:06:30,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 70 SyntacticMatches, 6 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-07-20 13:06:30,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-07-20 13:06:30,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 90. [2020-07-20 13:06:30,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-07-20 13:06:30,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 116 transitions. [2020-07-20 13:06:30,983 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 116 transitions. Word has length 42 [2020-07-20 13:06:30,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:06:30,984 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 116 transitions. [2020-07-20 13:06:30,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-20 13:06:30,984 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 116 transitions. [2020-07-20 13:06:30,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-20 13:06:30,986 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:06:30,987 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 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] [2020-07-20 13:06:31,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:06:31,201 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:06:31,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:06:31,203 INFO L82 PathProgramCache]: Analyzing trace with hash 424074718, now seen corresponding path program 2 times [2020-07-20 13:06:31,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:06:31,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1224222985] [2020-07-20 13:06:31,205 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:06:31,297 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:06:31,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:06:31,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-20 13:06:31,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:06:31,365 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-20 13:06:31,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 13:06:32,599 WARN L193 SmtUtils]: Spent 953.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-07-20 13:06:33,614 WARN L838 $PredicateComparison]: unable to prove that (forall ((addflt_~b Int)) (<= (mod addflt_~b 4294967296) (mod |c_addflt_#in~a| 4294967296))) is different from false [2020-07-20 13:06:36,057 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 8 [2020-07-20 13:06:36,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1224222985] [2020-07-20 13:06:36,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-20 13:06:36,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-20 13:06:36,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837880388] [2020-07-20 13:06:36,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 13:06:36,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:06:36,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 13:06:36,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=71, Unknown=2, NotChecked=16, Total=110 [2020-07-20 13:06:36,070 INFO L87 Difference]: Start difference. First operand 90 states and 116 transitions. Second operand 8 states. [2020-07-20 13:06:36,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:06:36,231 INFO L93 Difference]: Finished difference Result 164 states and 220 transitions. [2020-07-20 13:06:36,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 13:06:36,232 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-07-20 13:06:36,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:06:36,235 INFO L225 Difference]: With dead ends: 164 [2020-07-20 13:06:36,235 INFO L226 Difference]: Without dead ends: 132 [2020-07-20 13:06:36,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=30, Invalid=104, Unknown=2, NotChecked=20, Total=156 [2020-07-20 13:06:36,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-07-20 13:06:36,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 115. [2020-07-20 13:06:36,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-07-20 13:06:36,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 154 transitions. [2020-07-20 13:06:36,255 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 154 transitions. Word has length 42 [2020-07-20 13:06:36,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:06:36,256 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 154 transitions. [2020-07-20 13:06:36,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 13:06:36,256 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 154 transitions. [2020-07-20 13:06:36,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-20 13:06:36,258 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:06:36,259 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 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] [2020-07-20 13:06:36,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:06:36,463 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:06:36,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:06:36,464 INFO L82 PathProgramCache]: Analyzing trace with hash 481333020, now seen corresponding path program 1 times [2020-07-20 13:06:36,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:06:36,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204331603] [2020-07-20 13:06:36,465 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:06:36,556 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:06:36,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:06:36,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 29 conjunts are in the unsatisfiable core [2020-07-20 13:06:36,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:06:36,693 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 13:06:36,697 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 13:06:36,750 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-20 13:06:36,750 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:06:36,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204331603] [2020-07-20 13:06:36,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:06:36,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-20 13:06:36,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846997169] [2020-07-20 13:06:36,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-20 13:06:36,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:06:36,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-20 13:06:36,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-07-20 13:06:36,754 INFO L87 Difference]: Start difference. First operand 115 states and 154 transitions. Second operand 13 states. [2020-07-20 13:06:37,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:06:37,077 INFO L93 Difference]: Finished difference Result 207 states and 278 transitions. [2020-07-20 13:06:37,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-20 13:06:37,078 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 42 [2020-07-20 13:06:37,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:06:37,084 INFO L225 Difference]: With dead ends: 207 [2020-07-20 13:06:37,084 INFO L226 Difference]: Without dead ends: 169 [2020-07-20 13:06:37,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2020-07-20 13:06:37,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-07-20 13:06:37,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 153. [2020-07-20 13:06:37,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-07-20 13:06:37,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 203 transitions. [2020-07-20 13:06:37,120 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 203 transitions. Word has length 42 [2020-07-20 13:06:37,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:06:37,121 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 203 transitions. [2020-07-20 13:06:37,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-20 13:06:37,121 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 203 transitions. [2020-07-20 13:06:37,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-20 13:06:37,123 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:06:37,123 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 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] [2020-07-20 13:06:37,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:06:37,331 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:06:37,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:06:37,331 INFO L82 PathProgramCache]: Analyzing trace with hash 2004765024, now seen corresponding path program 1 times [2020-07-20 13:06:37,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:06:37,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434079181] [2020-07-20 13:06:37,333 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:06:37,398 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:06:37,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 13:06:37,398 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:06:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 13:06:37,423 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:06:37,461 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 13:06:37,461 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 13:06:37,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:06:37,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:06:37 BoogieIcfgContainer [2020-07-20 13:06:37,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 13:06:37,701 INFO L168 Benchmark]: Toolchain (without parser) took 9881.78 ms. Allocated memory was 145.8 MB in the beginning and 245.4 MB in the end (delta: 99.6 MB). Free memory was 102.6 MB in the beginning and 99.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 102.5 MB. Max. memory is 7.1 GB. [2020-07-20 13:06:37,702 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 13:06:37,703 INFO L168 Benchmark]: CACSL2BoogieTranslator took 426.35 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 102.4 MB in the beginning and 180.2 MB in the end (delta: -77.8 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2020-07-20 13:06:37,704 INFO L168 Benchmark]: Boogie Preprocessor took 38.87 ms. Allocated memory is still 202.4 MB. Free memory was 180.2 MB in the beginning and 178.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-07-20 13:06:37,705 INFO L168 Benchmark]: RCFGBuilder took 505.09 ms. Allocated memory is still 202.4 MB. Free memory was 178.2 MB in the beginning and 153.0 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-07-20 13:06:37,706 INFO L168 Benchmark]: TraceAbstraction took 8905.76 ms. Allocated memory was 202.4 MB in the beginning and 245.4 MB in the end (delta: 43.0 MB). Free memory was 153.0 MB in the beginning and 99.7 MB in the end (delta: 53.3 MB). Peak memory consumption was 96.3 MB. Max. memory is 7.1 GB. [2020-07-20 13:06:37,710 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 426.35 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 102.4 MB in the beginning and 180.2 MB in the end (delta: -77.8 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.87 ms. Allocated memory is still 202.4 MB. Free memory was 180.2 MB in the beginning and 178.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 505.09 ms. Allocated memory is still 202.4 MB. Free memory was 178.2 MB in the beginning and 153.0 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8905.76 ms. Allocated memory was 202.4 MB in the beginning and 245.4 MB in the end (delta: 43.0 MB). Free memory was 153.0 MB in the beginning and 99.7 MB in the end (delta: 53.3 MB). Peak memory consumption was 96.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 7]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 100, overapproximation of bitwiseAnd at line 98. Possible FailurePath: [L216] unsigned int a ; [L217] unsigned int ma = __VERIFIER_nondet_uint(); [L218] signed char ea = __VERIFIER_nondet_char(); [L219] unsigned int b ; [L220] unsigned int mb = __VERIFIER_nondet_uint(); [L221] signed char eb = __VERIFIER_nondet_char(); [L222] unsigned int r_add1 ; [L223] unsigned int r_add2 ; [L224] unsigned int zero ; [L225] int tmp ; [L226] int tmp___0 ; [L227] int __retres14 ; VAL [ea=127, eb=-128, ma=4294967295, mb=16777216] [L231] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L15] unsigned int res ; [L16] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L19] COND TRUE ! m [L20] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L70] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L231] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=127, eb=-128, ma=4294967295, mb=16777216] [L231] zero = base2flt(0, 0) [L232] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=127, \old(m)=4294967295] [L15] unsigned int res ; [L16] unsigned int __retres4 ; VAL [\old(e)=127, \old(m)=4294967295, e=127, m=4294967295] [L19] COND FALSE !(! m) VAL [\old(e)=127, \old(m)=4294967295, e=127, m=4294967295] [L25] COND FALSE !(m < 1U << 24U) VAL [\old(e)=127, \old(m)=4294967295, e=127, m=4294967295] [L47] COND TRUE 1 VAL [\old(e)=127, \old(m)=4294967295, e=127, m=4294967295] [L49] COND TRUE m >= 1U << 25U VAL [\old(e)=127, \old(m)=4294967295, e=127, m=4294967295] [L54] COND TRUE e >= 127 [L55] __retres4 = 4294967295U VAL [\old(e)=127, \old(m)=4294967295, __retres4=4294967295, e=127, m=4294967295] [L70] return (__retres4); VAL [\old(e)=127, \old(m)=4294967295, \result=4294967295, __retres4=4294967295, e=127, m=4294967295] [L232] RET, EXPR base2flt(ma, ea) VAL [base2flt(ma, ea)=4294967295, ea=127, eb=-128, ma=4294967295, mb=16777216, zero=0] [L232] a = base2flt(ma, ea) [L233] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=-128, \old(m)=16777216] [L15] unsigned int res ; [L16] unsigned int __retres4 ; VAL [\old(e)=-128, \old(m)=16777216, e=-128, m=16777216] [L19] COND FALSE !(! m) VAL [\old(e)=-128, \old(m)=16777216, e=-128, m=16777216] [L25] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-128, \old(m)=16777216, e=-128, m=16777216] [L47] COND TRUE 1 VAL [\old(e)=-128, \old(m)=16777216, e=-128, m=16777216] [L49] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-128, \old(m)=16777216, e=-128, m=16777216] [L66] m = m & ~ (1U << 24U) [L67] res = m | ((unsigned int )(e + 128) << 24U) [L68] __retres4 = res VAL [\old(e)=-128, \old(m)=16777216, __retres4=4294967295, e=-128, res=4294967295] [L70] return (__retres4); VAL [\old(e)=-128, \old(m)=16777216, \result=-108086391056891905, __retres4=4294967295, e=-128, res=4294967295] [L233] RET, EXPR base2flt(mb, eb) VAL [a=4294967295, base2flt(mb, eb)=-108086391056891905, ea=127, eb=-128, ma=4294967295, mb=16777216, zero=0] [L233] b = base2flt(mb, eb) [L234] CALL addflt(a, b) VAL [\old(a)=4294967295, \old(b)=4294967295] [L74] unsigned int res ; [L75] unsigned int ma ; [L76] unsigned int mb ; [L77] unsigned int delta ; [L78] int ea ; [L79] int eb ; [L80] unsigned int tmp ; [L81] unsigned int __retres10 ; VAL [\old(a)=4294967295, \old(b)=4294967295, a=4294967295, b=4294967295] [L84] COND FALSE !(a < b) VAL [\old(a)=4294967295, \old(b)=4294967295, a=4294967295, b=4294967295] [L91] COND FALSE !(! b) [L98] ma = a & ((1U << 24U) - 1U) [L99] ea = (int )(a >> 24U) - 128 [L100] ma = ma | (1U << 24U) [L101] mb = b & ((1U << 24U) - 1U) [L102] eb = (int )(b >> 24U) - 128 [L103] mb = mb | (1U << 24U) VAL [\old(a)=4294967295, \old(b)=4294967295, a=4294967295, b=4294967295, ea=127, eb=2147483519] [L104] CALL __VERIFIER_assert(ea >= eb) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L7] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.8s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 448 SDtfs, 205 SDslu, 3181 SDs, 0 SdLazy, 484 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 295 GetRequests, 225 SyntacticMatches, 7 SemanticMatches, 63 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=153occurred in iteration=5, 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, 5 MinimizatonAttempts, 86 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 240 NumberOfCodeBlocks, 213 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 267 ConstructedInterpolants, 0 QuantifiedInterpolants, 19411 SizeOfPredicates, 21 NumberOfNonLiveVariables, 563 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 106/119 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...