/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/nla-digbench/fermat1-ll.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 07:18:26,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 07:18:26,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 07:18:26,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 07:18:26,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 07:18:26,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 07:18:26,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 07:18:26,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 07:18:26,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 07:18:26,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 07:18:26,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 07:18:26,998 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 07:18:26,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 07:18:27,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 07:18:27,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 07:18:27,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 07:18:27,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 07:18:27,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 07:18:27,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 07:18:27,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 07:18:27,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 07:18:27,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 07:18:27,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 07:18:27,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 07:18:27,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 07:18:27,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 07:18:27,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 07:18:27,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 07:18:27,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 07:18:27,102 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 07:18:27,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 07:18:27,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 07:18:27,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 07:18:27,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 07:18:27,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 07:18:27,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 07:18:27,119 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 07:18:27,169 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 07:18:27,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 07:18:27,173 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 07:18:27,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 07:18:27,174 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 07:18:27,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 07:18:27,174 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 07:18:27,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 07:18:27,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 07:18:27,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 07:18:27,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 07:18:27,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 07:18:27,176 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 07:18:27,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 07:18:27,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 07:18:27,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 07:18:27,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 07:18:27,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 07:18:27,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 07:18:27,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 07:18:27,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 07:18:27,178 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 07:18:27,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 07:18:27,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 07:18:27,179 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 07:18:27,179 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 07:18:27,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 07:18:27,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 07:18:27,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 07:18:27,645 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 07:18:27,646 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 07:18:27,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/fermat1-ll.c [2020-12-23 07:18:27,729 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/f67f186de/7a13dcfe994f4f99bf5a69a71c7c89c3/FLAG308c1cfc4 [2020-12-23 07:18:28,293 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 07:18:28,294 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench/fermat1-ll.c [2020-12-23 07:18:28,308 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/f67f186de/7a13dcfe994f4f99bf5a69a71c7c89c3/FLAG308c1cfc4 [2020-12-23 07:18:28,632 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/f67f186de/7a13dcfe994f4f99bf5a69a71c7c89c3 [2020-12-23 07:18:28,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 07:18:28,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 07:18:28,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 07:18:28,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 07:18:28,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 07:18:28,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:18:28" (1/1) ... [2020-12-23 07:18:28,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a013637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:28, skipping insertion in model container [2020-12-23 07:18:28,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:18:28" (1/1) ... [2020-12-23 07:18:28,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 07:18:28,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 07:18:28,928 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench/fermat1-ll.c[535,548] left hand side expression in assignment: lhs: VariableLHS[~A~0,] left hand side expression in assignment: lhs: VariableLHS[~R~0,] left hand side expression in assignment: lhs: VariableLHS[~u~0,] left hand side expression in assignment: lhs: VariableLHS[~v~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~v~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~u~0,] [2020-12-23 07:18:28,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 07:18:28,988 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 07:18:29,002 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench/fermat1-ll.c[535,548] left hand side expression in assignment: lhs: VariableLHS[~A~0,] left hand side expression in assignment: lhs: VariableLHS[~R~0,] left hand side expression in assignment: lhs: VariableLHS[~u~0,] left hand side expression in assignment: lhs: VariableLHS[~v~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~v~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~u~0,] [2020-12-23 07:18:29,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 07:18:29,028 INFO L208 MainTranslator]: Completed translation [2020-12-23 07:18:29,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:29 WrapperNode [2020-12-23 07:18:29,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 07:18:29,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 07:18:29,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 07:18:29,030 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 07:18:29,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:29" (1/1) ... [2020-12-23 07:18:29,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:29" (1/1) ... [2020-12-23 07:18:29,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 07:18:29,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 07:18:29,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 07:18:29,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 07:18:29,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:29" (1/1) ... [2020-12-23 07:18:29,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:29" (1/1) ... [2020-12-23 07:18:29,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:29" (1/1) ... [2020-12-23 07:18:29,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:29" (1/1) ... [2020-12-23 07:18:29,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:29" (1/1) ... [2020-12-23 07:18:29,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:29" (1/1) ... [2020-12-23 07:18:29,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:29" (1/1) ... [2020-12-23 07:18:29,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 07:18:29,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 07:18:29,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 07:18:29,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 07:18:29,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 07:18:29,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 07:18:29,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 07:18:29,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 07:18:29,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 07:18:29,572 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 07:18:29,572 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2020-12-23 07:18:29,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:18:29 BoogieIcfgContainer [2020-12-23 07:18:29,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 07:18:29,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 07:18:29,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 07:18:29,582 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 07:18:29,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 07:18:28" (1/3) ... [2020-12-23 07:18:29,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b19ffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:18:29, skipping insertion in model container [2020-12-23 07:18:29,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:29" (2/3) ... [2020-12-23 07:18:29,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b19ffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:18:29, skipping insertion in model container [2020-12-23 07:18:29,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:18:29" (3/3) ... [2020-12-23 07:18:29,586 INFO L111 eAbstractionObserver]: Analyzing ICFG fermat1-ll.c [2020-12-23 07:18:29,593 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 07:18:29,599 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-23 07:18:29,618 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-23 07:18:29,648 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 07:18:29,648 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 07:18:29,648 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 07:18:29,648 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 07:18:29,648 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 07:18:29,649 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 07:18:29,649 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 07:18:29,649 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 07:18:29,664 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-12-23 07:18:29,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 07:18:29,669 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:18:29,670 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 07:18:29,670 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:18:29,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:18:29,676 INFO L82 PathProgramCache]: Analyzing trace with hash -594062832, now seen corresponding path program 1 times [2020-12-23 07:18:29,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:18:29,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935637352] [2020-12-23 07:18:29,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:18:29,784 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 07:18:29,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [885506409] [2020-12-23 07:18:29,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 07:18:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 07:18:29,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-23 07:18:29,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 07:18:29,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 07:18:29,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935637352] [2020-12-23 07:18:29,919 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 07:18:29,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885506409] [2020-12-23 07:18:29,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 07:18:29,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 07:18:29,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432607330] [2020-12-23 07:18:29,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 07:18:29,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 07:18:29,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 07:18:29,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 07:18:29,943 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2020-12-23 07:18:29,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 07:18:29,962 INFO L93 Difference]: Finished difference Result 55 states and 82 transitions. [2020-12-23 07:18:29,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 07:18:29,964 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-23 07:18:29,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 07:18:29,973 INFO L225 Difference]: With dead ends: 55 [2020-12-23 07:18:29,974 INFO L226 Difference]: Without dead ends: 25 [2020-12-23 07:18:29,977 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 07:18:29,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-12-23 07:18:30,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-12-23 07:18:30,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-12-23 07:18:30,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-12-23 07:18:30,011 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 9 [2020-12-23 07:18:30,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 07:18:30,011 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-12-23 07:18:30,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 07:18:30,012 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-12-23 07:18:30,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 07:18:30,012 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:18:30,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 07:18:30,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-12-23 07:18:30,227 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:18:30,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:18:30,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1182791572, now seen corresponding path program 1 times [2020-12-23 07:18:30,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:18:30,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858306496] [2020-12-23 07:18:30,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:18:30,249 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 07:18:30,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [334384507] [2020-12-23 07:18:30,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 07:18:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 07:18:30,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-23 07:18:30,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 07:18:30,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 07:18:30,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858306496] [2020-12-23 07:18:30,649 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 07:18:30,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334384507] [2020-12-23 07:18:30,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 07:18:30,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 07:18:30,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794719509] [2020-12-23 07:18:30,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 07:18:30,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 07:18:30,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 07:18:30,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-23 07:18:30,653 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 6 states. [2020-12-23 07:18:34,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 07:18:34,322 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2020-12-23 07:18:34,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 07:18:34,323 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-12-23 07:18:34,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 07:18:34,326 INFO L225 Difference]: With dead ends: 35 [2020-12-23 07:18:34,326 INFO L226 Difference]: Without dead ends: 33 [2020-12-23 07:18:34,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-12-23 07:18:34,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-23 07:18:34,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2020-12-23 07:18:34,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-12-23 07:18:34,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2020-12-23 07:18:34,347 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 9 [2020-12-23 07:18:34,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 07:18:34,347 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2020-12-23 07:18:34,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 07:18:34,347 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2020-12-23 07:18:34,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 07:18:34,348 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:18:34,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 07:18:34,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 07:18:34,562 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:18:34,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:18:34,569 INFO L82 PathProgramCache]: Analyzing trace with hash 636977420, now seen corresponding path program 1 times [2020-12-23 07:18:34,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:18:34,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001745614] [2020-12-23 07:18:34,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:18:34,581 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 07:18:34,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [244325412] [2020-12-23 07:18:34,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 07:18:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 07:18:34,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-23 07:18:34,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 07:18:36,716 WARN L197 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 24 [2020-12-23 07:18:36,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001745614] [2020-12-23 07:18:36,959 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 07:18:36,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244325412] [2020-12-23 07:18:36,960 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2020-12-23 07:18:36,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-12-23 07:18:36,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-12-23 07:18:36,960 ERROR L205 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2020-12-23 07:18:36,960 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 07:18:37,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 07:18:37,199 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-12-23 07:18:37,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 07:18:37 BoogieIcfgContainer [2020-12-23 07:18:37,199 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 07:18:37,200 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 07:18:37,200 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 07:18:37,201 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 07:18:37,201 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:18:29" (3/4) ... [2020-12-23 07:18:37,204 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-23 07:18:37,204 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 07:18:37,206 INFO L168 Benchmark]: Toolchain (without parser) took 8568.02 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 111.5 MB in the beginning and 111.6 MB in the end (delta: -141.1 kB). Peak memory consumption was 31.8 MB. Max. memory is 8.0 GB. [2020-12-23 07:18:37,206 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 155.2 MB. Free memory is still 127.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 07:18:37,207 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.73 ms. Allocated memory is still 155.2 MB. Free memory was 111.2 MB in the beginning and 129.7 MB in the end (delta: -18.5 MB). Peak memory consumption was 5.8 MB. Max. memory is 8.0 GB. [2020-12-23 07:18:37,208 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.54 ms. Allocated memory is still 155.2 MB. Free memory was 129.4 MB in the beginning and 137.9 MB in the end (delta: -8.5 MB). Peak memory consumption was 3.3 MB. Max. memory is 8.0 GB. [2020-12-23 07:18:37,209 INFO L168 Benchmark]: Boogie Preprocessor took 26.47 ms. Allocated memory is still 155.2 MB. Free memory was 137.9 MB in the beginning and 136.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 07:18:37,210 INFO L168 Benchmark]: RCFGBuilder took 470.68 ms. Allocated memory is still 155.2 MB. Free memory was 136.5 MB in the beginning and 121.1 MB in the end (delta: 15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-12-23 07:18:37,211 INFO L168 Benchmark]: TraceAbstraction took 7621.04 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 120.4 MB in the beginning and 111.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 40.5 MB. Max. memory is 8.0 GB. [2020-12-23 07:18:37,211 INFO L168 Benchmark]: Witness Printer took 3.93 ms. Allocated memory is still 186.6 MB. Free memory is still 111.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 07:18:37,216 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 155.2 MB. Free memory is still 127.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 386.73 ms. Allocated memory is still 155.2 MB. Free memory was 111.2 MB in the beginning and 129.7 MB in the end (delta: -18.5 MB). Peak memory consumption was 5.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 48.54 ms. Allocated memory is still 155.2 MB. Free memory was 129.4 MB in the beginning and 137.9 MB in the end (delta: -8.5 MB). Peak memory consumption was 3.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 26.47 ms. Allocated memory is still 155.2 MB. Free memory was 137.9 MB in the beginning and 136.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 470.68 ms. Allocated memory is still 155.2 MB. Free memory was 136.5 MB in the beginning and 121.1 MB in the end (delta: 15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7621.04 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 120.4 MB in the beginning and 111.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 40.5 MB. Max. memory is 8.0 GB. * Witness Printer took 3.93 ms. Allocated memory is still 186.6 MB. Free memory is still 111.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L20] int A, R; [L21] long long u, v, r; [L22] A = __VERIFIER_nondet_int() [L23] R = __VERIFIER_nondet_int() [L9] COND FALSE !(!cond) [L9] COND FALSE !(!cond) [L28] u = ((long long) 2 * R) + 1 [L29] v = 1 [L30] r = ((long long) R * R) - A [L33] COND TRUE 1 [L12] COND FALSE !(!(cond)) [L35] COND TRUE !(r != 0) [L12] COND TRUE !(cond) [L14] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 7.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 49 SDtfs, 17 SDslu, 59 SDs, 0 SdLazy, 46 SolverSat, 2 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 1088 SizeOfPredicates, 8 NumberOfNonLiveVariables, 124 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...