/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 21:37:26,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 21:37:26,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 21:37:26,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 21:37:26,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 21:37:26,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 21:37:26,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 21:37:26,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 21:37:26,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 21:37:26,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 21:37:26,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 21:37:26,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 21:37:26,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 21:37:26,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 21:37:26,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 21:37:26,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 21:37:26,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 21:37:26,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 21:37:26,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 21:37:26,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 21:37:26,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 21:37:26,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 21:37:26,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 21:37:26,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 21:37:26,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 21:37:26,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 21:37:26,881 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 21:37:26,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 21:37:26,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 21:37:26,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 21:37:26,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 21:37:26,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 21:37:26,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 21:37:26,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 21:37:26,892 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 21:37:26,892 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 21:37:26,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 21:37:26,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 21:37:26,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 21:37:26,894 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 21:37:26,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 21:37:26,897 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 21:37:26,914 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 21:37:26,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 21:37:26,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 21:37:26,917 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 21:37:26,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 21:37:26,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 21:37:26,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 21:37:26,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 21:37:26,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 21:37:26,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 21:37:26,919 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 21:37:26,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 21:37:26,920 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 21:37:26,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 21:37:26,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 21:37:26,921 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 21:37:26,921 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 21:37:26,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 21:37:26,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 21:37:26,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 21:37:26,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 21:37:26,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 21:37:26,922 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-09-04 21:37:27,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 21:37:27,366 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 21:37:27,370 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 21:37:27,372 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 21:37:27,372 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 21:37:27,373 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c [2020-09-04 21:37:27,448 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5ceee01d/c72f236722df4f1fa18d57ef01124f57/FLAG2fa4ced71 [2020-09-04 21:37:28,007 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 21:37:28,008 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c [2020-09-04 21:37:28,016 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5ceee01d/c72f236722df4f1fa18d57ef01124f57/FLAG2fa4ced71 [2020-09-04 21:37:28,273 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5ceee01d/c72f236722df4f1fa18d57ef01124f57 [2020-09-04 21:37:28,287 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 21:37:28,289 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 21:37:28,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 21:37:28,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 21:37:28,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 21:37:28,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 09:37:28" (1/1) ... [2020-09-04 21:37:28,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2748618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:28, skipping insertion in model container [2020-09-04 21:37:28,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 09:37:28" (1/1) ... [2020-09-04 21:37:28,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 21:37:28,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 21:37:28,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 21:37:28,592 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 21:37:28,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 21:37:28,750 INFO L208 MainTranslator]: Completed translation [2020-09-04 21:37:28,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:28 WrapperNode [2020-09-04 21:37:28,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 21:37:28,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 21:37:28,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 21:37:28,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 21:37:28,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:28" (1/1) ... [2020-09-04 21:37:28,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:28" (1/1) ... [2020-09-04 21:37:28,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:28" (1/1) ... [2020-09-04 21:37:28,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:28" (1/1) ... [2020-09-04 21:37:28,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:28" (1/1) ... [2020-09-04 21:37:28,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:28" (1/1) ... [2020-09-04 21:37:28,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:28" (1/1) ... [2020-09-04 21:37:28,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 21:37:28,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 21:37:28,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 21:37:28,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 21:37:28,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 21:37:28,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 21:37:28,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 21:37:28,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 21:37:28,890 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2020-09-04 21:37:28,890 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2020-09-04 21:37:28,890 INFO L138 BoogieDeclarations]: Found implementation of procedure mulflt [2020-09-04 21:37:28,890 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 21:37:28,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 21:37:28,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-04 21:37:28,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-04 21:37:28,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 21:37:28,891 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2020-09-04 21:37:28,891 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2020-09-04 21:37:28,891 INFO L130 BoogieDeclarations]: Found specification of procedure mulflt [2020-09-04 21:37:28,891 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 21:37:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 21:37:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 21:37:29,437 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 21:37:29,437 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-04 21:37:29,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 09:37:29 BoogieIcfgContainer [2020-09-04 21:37:29,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 21:37:29,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 21:37:29,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 21:37:29,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 21:37:29,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 09:37:28" (1/3) ... [2020-09-04 21:37:29,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a78da3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 09:37:29, skipping insertion in model container [2020-09-04 21:37:29,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:28" (2/3) ... [2020-09-04 21:37:29,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a78da3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 09:37:29, skipping insertion in model container [2020-09-04 21:37:29,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 09:37:29" (3/3) ... [2020-09-04 21:37:29,455 INFO L109 eAbstractionObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2020-09-04 21:37:29,467 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 21:37:29,477 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 21:37:29,500 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 21:37:29,529 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 21:37:29,529 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 21:37:29,529 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 21:37:29,530 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 21:37:29,530 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 21:37:29,530 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 21:37:29,530 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 21:37:29,531 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 21:37:29,553 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states. [2020-09-04 21:37:29,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-04 21:37:29,572 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:37:29,573 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 21:37:29,574 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:37:29,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:37:29,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1377121462, now seen corresponding path program 1 times [2020-09-04 21:37:29,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:37:29,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691097305] [2020-09-04 21:37:29,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:37:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:30,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 21:37:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:30,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-04 21:37:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:30,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-04 21:37:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:30,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-04 21:37:30,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:30,121 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-09-04 21:37:30,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [691097305] [2020-09-04 21:37:30,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 21:37:30,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 21:37:30,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149879080] [2020-09-04 21:37:30,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 21:37:30,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 21:37:30,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 21:37:30,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-04 21:37:30,153 INFO L87 Difference]: Start difference. First operand 130 states. Second operand 8 states. [2020-09-04 21:37:30,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 21:37:30,426 INFO L93 Difference]: Finished difference Result 259 states and 324 transitions. [2020-09-04 21:37:30,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 21:37:30,429 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2020-09-04 21:37:30,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 21:37:30,446 INFO L225 Difference]: With dead ends: 259 [2020-09-04 21:37:30,446 INFO L226 Difference]: Without dead ends: 150 [2020-09-04 21:37:30,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-09-04 21:37:30,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-09-04 21:37:30,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 138. [2020-09-04 21:37:30,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-04 21:37:30,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 158 transitions. [2020-09-04 21:37:30,527 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 158 transitions. Word has length 81 [2020-09-04 21:37:30,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 21:37:30,528 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 158 transitions. [2020-09-04 21:37:30,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 21:37:30,529 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 158 transitions. [2020-09-04 21:37:30,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-04 21:37:30,534 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:37:30,534 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 21:37:30,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 21:37:30,535 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:37:30,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:37:30,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1823732666, now seen corresponding path program 1 times [2020-09-04 21:37:30,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:37:30,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1757655557] [2020-09-04 21:37:30,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:37:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:30,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 21:37:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:30,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-04 21:37:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:30,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-04 21:37:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:31,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-04 21:37:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:31,093 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-04 21:37:31,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1757655557] [2020-09-04 21:37:31,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-04 21:37:31,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-04 21:37:31,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101376499] [2020-09-04 21:37:31,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-04 21:37:31,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 21:37:31,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-04 21:37:31,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-09-04 21:37:31,101 INFO L87 Difference]: Start difference. First operand 138 states and 158 transitions. Second operand 13 states. [2020-09-04 21:37:31,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 21:37:31,554 INFO L93 Difference]: Finished difference Result 277 states and 328 transitions. [2020-09-04 21:37:31,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 21:37:31,556 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 85 [2020-09-04 21:37:31,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 21:37:31,563 INFO L225 Difference]: With dead ends: 277 [2020-09-04 21:37:31,564 INFO L226 Difference]: Without dead ends: 218 [2020-09-04 21:37:31,567 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2020-09-04 21:37:31,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-09-04 21:37:31,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 188. [2020-09-04 21:37:31,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-09-04 21:37:31,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 220 transitions. [2020-09-04 21:37:31,628 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 220 transitions. Word has length 85 [2020-09-04 21:37:31,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 21:37:31,629 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 220 transitions. [2020-09-04 21:37:31,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-04 21:37:31,630 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 220 transitions. [2020-09-04 21:37:31,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-04 21:37:31,639 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:37:31,639 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 21:37:31,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 21:37:31,643 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:37:31,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:37:31,643 INFO L82 PathProgramCache]: Analyzing trace with hash -955036012, now seen corresponding path program 1 times [2020-09-04 21:37:31,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:37:31,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1957469485] [2020-09-04 21:37:31,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:37:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:31,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 21:37:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:31,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-04 21:37:31,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:31,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-04 21:37:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:31,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-04 21:37:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:31,918 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-04 21:37:31,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1957469485] [2020-09-04 21:37:31,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-04 21:37:31,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-04 21:37:31,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554036553] [2020-09-04 21:37:31,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 21:37:31,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 21:37:31,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 21:37:31,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-04 21:37:31,921 INFO L87 Difference]: Start difference. First operand 188 states and 220 transitions. Second operand 9 states. [2020-09-04 21:37:32,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 21:37:32,144 INFO L93 Difference]: Finished difference Result 336 states and 392 transitions. [2020-09-04 21:37:32,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 21:37:32,145 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 86 [2020-09-04 21:37:32,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 21:37:32,148 INFO L225 Difference]: With dead ends: 336 [2020-09-04 21:37:32,148 INFO L226 Difference]: Without dead ends: 277 [2020-09-04 21:37:32,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-09-04 21:37:32,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-04 21:37:32,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 233. [2020-09-04 21:37:32,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-09-04 21:37:32,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 273 transitions. [2020-09-04 21:37:32,182 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 273 transitions. Word has length 86 [2020-09-04 21:37:32,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 21:37:32,183 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 273 transitions. [2020-09-04 21:37:32,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 21:37:32,183 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 273 transitions. [2020-09-04 21:37:32,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-04 21:37:32,185 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:37:32,186 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 21:37:32,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 21:37:32,186 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:37:32,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:37:32,186 INFO L82 PathProgramCache]: Analyzing trace with hash 808883757, now seen corresponding path program 1 times [2020-09-04 21:37:32,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:37:32,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803970202] [2020-09-04 21:37:32,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:37:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:32,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 21:37:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:32,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-04 21:37:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:32,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-04 21:37:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:32,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-04 21:37:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:32,384 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-04 21:37:32,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [803970202] [2020-09-04 21:37:32,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-04 21:37:32,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-04 21:37:32,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119659231] [2020-09-04 21:37:32,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 21:37:32,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 21:37:32,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 21:37:32,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-09-04 21:37:32,387 INFO L87 Difference]: Start difference. First operand 233 states and 273 transitions. Second operand 10 states. [2020-09-04 21:37:32,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 21:37:32,642 INFO L93 Difference]: Finished difference Result 333 states and 385 transitions. [2020-09-04 21:37:32,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 21:37:32,643 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 88 [2020-09-04 21:37:32,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 21:37:32,650 INFO L225 Difference]: With dead ends: 333 [2020-09-04 21:37:32,650 INFO L226 Difference]: Without dead ends: 224 [2020-09-04 21:37:32,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2020-09-04 21:37:32,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-09-04 21:37:32,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 188. [2020-09-04 21:37:32,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-09-04 21:37:32,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 214 transitions. [2020-09-04 21:37:32,692 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 214 transitions. Word has length 88 [2020-09-04 21:37:32,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 21:37:32,704 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 214 transitions. [2020-09-04 21:37:32,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 21:37:32,705 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 214 transitions. [2020-09-04 21:37:32,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-04 21:37:32,706 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:37:32,707 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 21:37:32,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 21:37:32,707 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:37:32,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:37:32,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1795206334, now seen corresponding path program 2 times [2020-09-04 21:37:32,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:37:32,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [402327861] [2020-09-04 21:37:32,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:37:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:33,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 21:37:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:33,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-04 21:37:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:33,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-04 21:37:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:33,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-04 21:37:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:33,148 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-04 21:37:33,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [402327861] [2020-09-04 21:37:33,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 21:37:33,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-04 21:37:33,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965542623] [2020-09-04 21:37:33,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-04 21:37:33,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 21:37:33,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-04 21:37:33,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-09-04 21:37:33,151 INFO L87 Difference]: Start difference. First operand 188 states and 214 transitions. Second operand 15 states. [2020-09-04 21:37:33,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 21:37:33,914 INFO L93 Difference]: Finished difference Result 328 states and 385 transitions. [2020-09-04 21:37:33,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-04 21:37:33,915 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 89 [2020-09-04 21:37:33,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 21:37:33,918 INFO L225 Difference]: With dead ends: 328 [2020-09-04 21:37:33,918 INFO L226 Difference]: Without dead ends: 269 [2020-09-04 21:37:33,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2020-09-04 21:37:33,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-09-04 21:37:33,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 239. [2020-09-04 21:37:33,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-04 21:37:33,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 275 transitions. [2020-09-04 21:37:33,951 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 275 transitions. Word has length 89 [2020-09-04 21:37:33,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 21:37:33,952 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 275 transitions. [2020-09-04 21:37:33,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-04 21:37:33,952 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 275 transitions. [2020-09-04 21:37:33,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-09-04 21:37:33,954 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:37:33,954 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 21:37:33,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 21:37:33,955 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:37:33,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:37:33,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1839352304, now seen corresponding path program 1 times [2020-09-04 21:37:33,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:37:33,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670009420] [2020-09-04 21:37:33,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:37:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 21:37:33,980 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 21:37:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 21:37:33,999 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 21:37:34,029 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 21:37:34,029 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 21:37:34,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 21:37:34,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 09:37:34 BoogieIcfgContainer [2020-09-04 21:37:34,081 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 21:37:34,085 INFO L168 Benchmark]: Toolchain (without parser) took 5795.30 ms. Allocated memory was 146.3 MB in the beginning and 281.0 MB in the end (delta: 134.7 MB). Free memory was 103.4 MB in the beginning and 206.2 MB in the end (delta: -102.8 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:34,086 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 21:37:34,087 INFO L168 Benchmark]: CACSL2BoogieTranslator took 461.01 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 103.2 MB in the beginning and 183.2 MB in the end (delta: -80.0 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:34,088 INFO L168 Benchmark]: Boogie Preprocessor took 46.27 ms. Allocated memory is still 204.5 MB. Free memory was 183.2 MB in the beginning and 180.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:34,089 INFO L168 Benchmark]: RCFGBuilder took 647.36 ms. Allocated memory is still 204.5 MB. Free memory was 180.7 MB in the beginning and 148.5 MB in the end (delta: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:34,090 INFO L168 Benchmark]: TraceAbstraction took 4635.27 ms. Allocated memory was 204.5 MB in the beginning and 281.0 MB in the end (delta: 76.5 MB). Free memory was 148.5 MB in the beginning and 206.2 MB in the end (delta: -57.7 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:34,093 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 461.01 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 103.2 MB in the beginning and 183.2 MB in the end (delta: -80.0 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.27 ms. Allocated memory is still 204.5 MB. Free memory was 183.2 MB in the beginning and 180.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 647.36 ms. Allocated memory is still 204.5 MB. Free memory was 180.7 MB in the beginning and 148.5 MB in the end (delta: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4635.27 ms. Allocated memory was 204.5 MB in the beginning and 281.0 MB in the end (delta: 76.5 MB). Free memory was 148.5 MB in the beginning and 206.2 MB in the end (delta: -57.7 MB). Peak memory consumption was 18.8 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 103, overapproximation of bitwiseAnd at line 101. Possible FailurePath: [L216] unsigned int a ; [L217] unsigned int ma = __VERIFIER_nondet_uint(); VAL [__VERIFIER_nondet_uint()=33554432, ma=33554432] [L218] signed char ea = __VERIFIER_nondet_char(); VAL [__VERIFIER_nondet_char()=127, ea=127, ma=33554432] [L219] unsigned int b ; VAL [ea=127, ma=33554432] [L220] unsigned int mb = __VERIFIER_nondet_uint(); VAL [__VERIFIER_nondet_uint()=16777216, ea=127, ma=33554432, mb=16777216] [L221] signed char eb = __VERIFIER_nondet_char(); VAL [__VERIFIER_nondet_char()=0, ea=127, eb=0, ma=33554432, mb=16777216] [L222] unsigned int r_add1 ; VAL [ea=127, eb=0, ma=33554432, mb=16777216] [L223] unsigned int r_add2 ; VAL [ea=127, eb=0, ma=33554432, mb=16777216] [L224] unsigned int zero ; VAL [ea=127, eb=0, ma=33554432, mb=16777216] [L225] int tmp ; VAL [ea=127, eb=0, ma=33554432, mb=16777216] [L226] int tmp___0 ; VAL [ea=127, eb=0, ma=33554432, mb=16777216] [L227] int __retres14 ; VAL [ea=127, eb=0, ma=33554432, mb=16777216] [L231] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L15] unsigned int res ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L16] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L19] COND TRUE ! m VAL [\old(e)=0, \old(m)=0, e=0, m=0] [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=0, ma=33554432, mb=16777216] [L231] zero = base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=127, eb=0, ma=33554432, mb=16777216, zero=0] [L232] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=127, \old(m)=33554432] [L15] unsigned int res ; VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L16] unsigned int __retres4 ; VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L19] COND FALSE !(! m) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L25] COND FALSE !(m < 1U << 24U) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L47] COND TRUE 1 VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L49] COND TRUE m >= 1U << 25U VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L54] COND TRUE e >= 127 VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L55] __retres4 = 4294967295U VAL [\old(e)=127, \old(m)=33554432, __retres4=4294967295, e=127, m=33554432] [L70] return (__retres4); VAL [\old(e)=127, \old(m)=33554432, \result=4294967295, __retres4=4294967295, e=127, m=33554432] [L232] RET, EXPR base2flt(ma, ea) VAL [base2flt(ma, ea)=4294967295, ea=127, eb=0, ma=33554432, mb=16777216, zero=0] [L232] a = base2flt(ma, ea) VAL [a=4294967295, base2flt(ma, ea)=4294967295, ea=127, eb=0, ma=33554432, mb=16777216, zero=0] [L233] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=0, \old(m)=16777216] [L15] unsigned int res ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L16] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L19] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L25] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L47] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L49] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L66] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0] [L67] res = m | ((unsigned int )(e + 128) << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0] [L68] __retres4 = res VAL [\old(e)=0, \old(m)=16777216, __retres4=1, e=0, res=1] [L70] return (__retres4); VAL [\old(e)=0, \old(m)=16777216, \result=4294967297, __retres4=1, e=0, res=1] [L233] RET, EXPR base2flt(mb, eb) VAL [a=4294967295, base2flt(mb, eb)=4294967297, ea=127, eb=0, ma=33554432, mb=16777216, zero=0] [L233] b = base2flt(mb, eb) VAL [a=4294967295, b=1, base2flt(mb, eb)=4294967297, ea=127, eb=0, ma=33554432, mb=16777216, zero=0] [L234] CALL addflt(a, b) VAL [\old(a)=4294967295, \old(b)=1] [L74] unsigned int res ; VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1] [L75] unsigned int ma ; VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1] [L76] unsigned int mb ; VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1] [L77] unsigned int delta ; VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1] [L78] int ea ; VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1] [L79] int eb ; VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1] [L80] unsigned int tmp ; VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1] [L81] unsigned int __retres10 ; VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1] [L84] COND FALSE !(a < b) VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1] [L91] COND FALSE !(! b) VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1] [L98] ma = a & ((1U << 24U) - 1U) VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1] [L99] ea = (int )(a >> 24U) - 128 VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1, ea=127] [L100] ma = ma | (1U << 24U) VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1, ea=127] [L101] mb = b & ((1U << 24U) - 1U) VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1, ea=127] [L102] eb = (int )(b >> 24U) - 128 VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1, ea=127, eb=128] [L103] mb = mb | (1U << 24U) VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1, ea=127, eb=128] [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, 169 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.5s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 828 SDtfs, 418 SDslu, 6912 SDs, 0 SdLazy, 731 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=239occurred 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: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 152 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 519 NumberOfCodeBlocks, 519 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 424 ConstructedInterpolants, 0 QuantifiedInterpolants, 141004 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 122/131 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...