/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-scaling/geo1-ll_unwindbound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 07:44:37,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 07:44:37,959 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 07:44:38,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 07:44:38,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 07:44:38,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 07:44:38,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 07:44:38,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 07:44:38,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 07:44:38,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 07:44:38,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 07:44:38,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 07:44:38,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 07:44:38,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 07:44:38,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 07:44:38,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 07:44:38,052 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 07:44:38,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 07:44:38,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 07:44:38,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 07:44:38,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 07:44:38,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 07:44:38,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 07:44:38,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 07:44:38,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 07:44:38,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 07:44:38,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 07:44:38,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 07:44:38,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 07:44:38,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 07:44:38,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 07:44:38,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 07:44:38,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 07:44:38,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 07:44:38,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 07:44:38,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 07:44:38,124 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 07:44:38,172 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 07:44:38,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 07:44:38,177 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 07:44:38,178 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 07:44:38,178 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 07:44:38,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 07:44:38,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 07:44:38,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 07:44:38,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 07:44:38,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 07:44:38,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 07:44:38,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 07:44:38,181 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 07:44:38,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 07:44:38,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 07:44:38,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 07:44:38,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 07:44:38,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 07:44:38,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 07:44:38,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 07:44:38,183 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 07:44:38,184 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 07:44:38,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 07:44:38,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 07:44:38,184 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 07:44:38,185 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 07:44:38,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 07:44:38,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 07:44:38,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 07:44:38,617 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 07:44:38,618 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 07:44:38,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound2.c [2020-12-23 07:44:38,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/39200ff5f/79c4b8d5150646f9b0482e8cc950d845/FLAG8dca7b278 [2020-12-23 07:44:39,277 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 07:44:39,278 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound2.c [2020-12-23 07:44:39,286 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/39200ff5f/79c4b8d5150646f9b0482e8cc950d845/FLAG8dca7b278 [2020-12-23 07:44:39,641 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/39200ff5f/79c4b8d5150646f9b0482e8cc950d845 [2020-12-23 07:44:39,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 07:44:39,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 07:44:39,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 07:44:39,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 07:44:39,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 07:44:39,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:44:39" (1/1) ... [2020-12-23 07:44:39,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15aa99b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:44:39, skipping insertion in model container [2020-12-23 07:44:39,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:44:39" (1/1) ... [2020-12-23 07:44:39,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 07:44:39,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 07:44:39,888 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-scaling/geo1-ll_unwindbound2.c[546,559] left hand side expression in assignment: lhs: VariableLHS[~z~0,] left hand side expression in assignment: lhs: VariableLHS[~k~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 07:44:39,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 07:44:39,923 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 07:44:39,934 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-scaling/geo1-ll_unwindbound2.c[546,559] left hand side expression in assignment: lhs: VariableLHS[~z~0,] left hand side expression in assignment: lhs: VariableLHS[~k~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 07:44:39,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 07:44:39,956 INFO L208 MainTranslator]: Completed translation [2020-12-23 07:44:39,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:44:39 WrapperNode [2020-12-23 07:44:39,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 07:44:39,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 07:44:39,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 07:44:39,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 07:44:39,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:44:39" (1/1) ... [2020-12-23 07:44:39,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:44:39" (1/1) ... [2020-12-23 07:44:39,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 07:44:39,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 07:44:39,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 07:44:39,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 07:44:40,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:44:39" (1/1) ... [2020-12-23 07:44:40,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:44:39" (1/1) ... [2020-12-23 07:44:40,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:44:39" (1/1) ... [2020-12-23 07:44:40,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:44:39" (1/1) ... [2020-12-23 07:44:40,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:44:39" (1/1) ... [2020-12-23 07:44:40,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:44:39" (1/1) ... [2020-12-23 07:44:40,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:44:39" (1/1) ... [2020-12-23 07:44:40,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 07:44:40,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 07:44:40,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 07:44:40,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 07:44:40,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:44:39" (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 07:44:40,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 07:44:40,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 07:44:40,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 07:44:40,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 07:44:40,358 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 07:44:40,358 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2020-12-23 07:44:40,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:44:40 BoogieIcfgContainer [2020-12-23 07:44:40,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 07:44:40,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 07:44:40,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 07:44:40,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 07:44:40,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 07:44:39" (1/3) ... [2020-12-23 07:44:40,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30db88e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:44:40, skipping insertion in model container [2020-12-23 07:44:40,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:44:39" (2/3) ... [2020-12-23 07:44:40,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30db88e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:44:40, skipping insertion in model container [2020-12-23 07:44:40,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:44:40" (3/3) ... [2020-12-23 07:44:40,369 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-ll_unwindbound2.c [2020-12-23 07:44:40,376 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 07:44:40,382 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-23 07:44:40,406 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-23 07:44:40,438 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 07:44:40,438 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 07:44:40,438 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 07:44:40,438 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 07:44:40,439 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 07:44:40,439 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 07:44:40,439 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 07:44:40,439 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 07:44:40,457 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-12-23 07:44:40,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 07:44:40,463 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:44:40,464 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 07:44:40,465 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:44:40,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:44:40,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1236199694, now seen corresponding path program 1 times [2020-12-23 07:44:40,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:44:40,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397605535] [2020-12-23 07:44:40,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:44:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 07:44:40,695 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 07:44:40,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397605535] [2020-12-23 07:44:40,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 07:44:40,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 07:44:40,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625233268] [2020-12-23 07:44:40,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 07:44:40,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 07:44:40,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 07:44:40,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 07:44:40,720 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2020-12-23 07:44:40,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 07:44:40,738 INFO L93 Difference]: Finished difference Result 37 states and 48 transitions. [2020-12-23 07:44:40,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 07:44:40,739 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-23 07:44:40,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 07:44:40,749 INFO L225 Difference]: With dead ends: 37 [2020-12-23 07:44:40,749 INFO L226 Difference]: Without dead ends: 16 [2020-12-23 07:44:40,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 07:44:40,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-23 07:44:40,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-23 07:44:40,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-23 07:44:40,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-12-23 07:44:40,790 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 10 [2020-12-23 07:44:40,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 07:44:40,791 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-12-23 07:44:40,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 07:44:40,791 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-12-23 07:44:40,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 07:44:40,792 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:44:40,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 07:44:40,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 07:44:40,792 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:44:40,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:44:40,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1988288018, now seen corresponding path program 1 times [2020-12-23 07:44:40,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:44:40,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644659182] [2020-12-23 07:44:40,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:44:40,817 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 07:44:40,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1122189565] [2020-12-23 07:44:40,818 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 07:44:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 07:44:40,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 07:44:40,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 07:44:41,046 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 07:44:41,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644659182] [2020-12-23 07:44:41,047 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 07:44:41,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122189565] [2020-12-23 07:44:41,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 07:44:41,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 07:44:41,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54795087] [2020-12-23 07:44:41,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 07:44:41,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 07:44:41,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 07:44:41,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 07:44:41,051 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 6 states. [2020-12-23 07:44:41,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 07:44:41,193 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2020-12-23 07:44:41,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 07:44:41,194 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-12-23 07:44:41,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 07:44:41,195 INFO L225 Difference]: With dead ends: 30 [2020-12-23 07:44:41,196 INFO L226 Difference]: Without dead ends: 23 [2020-12-23 07:44:41,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-23 07:44:41,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-12-23 07:44:41,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2020-12-23 07:44:41,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-23 07:44:41,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-12-23 07:44:41,202 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 10 [2020-12-23 07:44:41,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 07:44:41,203 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-12-23 07:44:41,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 07:44:41,203 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-12-23 07:44:41,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-23 07:44:41,204 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:44:41,204 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 07:44:41,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-23 07:44:41,420 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:44:41,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:44:41,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1782419994, now seen corresponding path program 1 times [2020-12-23 07:44:41,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:44:41,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271341154] [2020-12-23 07:44:41,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:44:41,441 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 07:44:41,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [444297343] [2020-12-23 07:44:41,442 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 07:44:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 07:44:41,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 23 conjunts are in the unsatisfiable core [2020-12-23 07:44:41,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 07:44:41,608 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 07:44:41,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271341154] [2020-12-23 07:44:41,609 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 07:44:41,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444297343] [2020-12-23 07:44:41,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 07:44:41,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-23 07:44:41,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955038409] [2020-12-23 07:44:41,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 07:44:41,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 07:44:41,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 07:44:41,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-23 07:44:41,612 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 7 states. [2020-12-23 07:44:41,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 07:44:41,836 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2020-12-23 07:44:41,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 07:44:41,837 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-12-23 07:44:41,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 07:44:41,838 INFO L225 Difference]: With dead ends: 33 [2020-12-23 07:44:41,838 INFO L226 Difference]: Without dead ends: 27 [2020-12-23 07:44:41,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-12-23 07:44:41,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-23 07:44:41,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2020-12-23 07:44:41,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-12-23 07:44:41,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-12-23 07:44:41,846 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 14 [2020-12-23 07:44:41,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 07:44:41,846 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-12-23 07:44:41,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 07:44:41,846 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-12-23 07:44:41,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-23 07:44:41,847 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:44:41,847 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 07:44:42,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 07:44:42,062 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:44:42,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:44:42,064 INFO L82 PathProgramCache]: Analyzing trace with hash 397544518, now seen corresponding path program 2 times [2020-12-23 07:44:42,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:44:42,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388421045] [2020-12-23 07:44:42,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:44:42,079 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 07:44:42,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2011423224] [2020-12-23 07:44:42,080 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 07:44:42,127 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 07:44:42,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 07:44:42,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-23 07:44:42,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 07:44:42,190 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 07:44:42,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388421045] [2020-12-23 07:44:42,191 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 07:44:42,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011423224] [2020-12-23 07:44:42,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 07:44:42,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-12-23 07:44:42,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035641547] [2020-12-23 07:44:42,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 07:44:42,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 07:44:42,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 07:44:42,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 07:44:42,194 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 6 states. [2020-12-23 07:44:42,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 07:44:42,222 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2020-12-23 07:44:42,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 07:44:42,223 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-23 07:44:42,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 07:44:42,224 INFO L225 Difference]: With dead ends: 30 [2020-12-23 07:44:42,224 INFO L226 Difference]: Without dead ends: 20 [2020-12-23 07:44:42,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-23 07:44:42,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-12-23 07:44:42,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-12-23 07:44:42,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-23 07:44:42,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2020-12-23 07:44:42,229 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 18 [2020-12-23 07:44:42,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 07:44:42,230 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2020-12-23 07:44:42,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 07:44:42,230 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2020-12-23 07:44:42,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 07:44:42,231 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:44:42,231 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 07:44:42,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 07:44:42,445 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:44:42,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:44:42,446 INFO L82 PathProgramCache]: Analyzing trace with hash -561065459, now seen corresponding path program 1 times [2020-12-23 07:44:42,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:44:42,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677386713] [2020-12-23 07:44:42,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:44:42,463 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 07:44:42,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [760003756] [2020-12-23 07:44:42,464 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 07:44:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 07:44:42,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-23 07:44:42,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 07:44:44,632 WARN L838 $PredicateComparison]: unable to prove that (and (<= 2 c_ULTIMATE.start_main_~c~0) (let ((.cse0 (= (+ (* c_ULTIMATE.start_main_~z~0 c_ULTIMATE.start_main_~x~0) 1) (+ c_ULTIMATE.start_main_~y~0 c_ULTIMATE.start_main_~x~0)))) (or (and (= 0 c_ULTIMATE.start___VERIFIER_assert_~cond) (not .cse0)) (and (= 1 c_ULTIMATE.start___VERIFIER_assert_~cond) .cse0))) (<= 1 c_ULTIMATE.start_main_~k~0) (= (* c_ULTIMATE.start_main_~z~0 c_ULTIMATE.start_main_~z~0) c_ULTIMATE.start_main_~y~0) (= c_ULTIMATE.start_main_~x~0 (+ c_ULTIMATE.start_main_~z~0 1))) is different from false [2020-12-23 07:44:50,706 WARN L197 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 18 [2020-12-23 07:44:50,757 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2020-12-23 07:44:50,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677386713] [2020-12-23 07:44:50,757 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 07:44:50,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760003756] [2020-12-23 07:44:50,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 07:44:50,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-12-23 07:44:50,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907701424] [2020-12-23 07:44:50,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 07:44:50,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 07:44:50,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 07:44:50,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=53, Unknown=2, NotChecked=14, Total=90 [2020-12-23 07:44:50,760 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 10 states. [2020-12-23 07:45:05,234 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (<= 1 c_ULTIMATE.start_main_~k~0))) (and (<= 2 c_ULTIMATE.start_main_~c~0) (let ((.cse0 (= (+ (* c_ULTIMATE.start_main_~z~0 c_ULTIMATE.start_main_~x~0) 1) (+ c_ULTIMATE.start_main_~y~0 c_ULTIMATE.start_main_~x~0)))) (or (and (= 0 c_ULTIMATE.start___VERIFIER_assert_~cond) (not .cse0)) (and (= 1 c_ULTIMATE.start___VERIFIER_assert_~cond) .cse0))) .cse1 (= (* c_ULTIMATE.start_main_~z~0 c_ULTIMATE.start_main_~z~0) c_ULTIMATE.start_main_~y~0) (or (and .cse1 (= c_ULTIMATE.start_assume_abort_if_not_~cond 1)) (and (= c_ULTIMATE.start_assume_abort_if_not_~cond 0) (< c_ULTIMATE.start_main_~k~0 1))) (= c_ULTIMATE.start_main_~x~0 (+ c_ULTIMATE.start_main_~z~0 1)))) is different from false [2020-12-23 07:45:07,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 07:45:07,266 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2020-12-23 07:45:07,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-23 07:45:07,280 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2020-12-23 07:45:07,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 07:45:07,280 INFO L225 Difference]: With dead ends: 20 [2020-12-23 07:45:07,280 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 07:45:07,281 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=52, Invalid=134, Unknown=4, NotChecked=50, Total=240 [2020-12-23 07:45:07,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 07:45:07,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 07:45:07,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 07:45:07,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 07:45:07,282 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-12-23 07:45:07,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 07:45:07,282 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 07:45:07,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 07:45:07,282 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 07:45:07,283 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 07:45:07,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 07:45:07,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-23 07:45:11,719 WARN L197 SmtUtils]: Spent 4.09 s on a formula simplification that was a NOOP. DAG size: 31 [2020-12-23 07:45:11,722 INFO L185 CegarLoopUtils]: At program point L35-3(lines 35 45) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~k~0)) (.cse3 (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~z~0)) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (<= 1 ULTIMATE.start_main_~z~0))) (or (and (= ULTIMATE.start_main_~x~0 1) .cse0 (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) (<= 1 ULTIMATE.start_main_~c~0) .cse1 (<= 0 ~counter~0) .cse2) (and .cse0 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~z~0 .cse3 1)) (= ULTIMATE.start_main_~y~0 (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~z~0)) .cse1 (<= 2 ~counter~0) .cse2) (and (<= 1 ~counter~0) (<= 2 ULTIMATE.start_main_~c~0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse0 (= .cse3 ULTIMATE.start_main_~y~0) .cse1 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~z~0 1)) .cse2))) [2020-12-23 07:45:11,722 INFO L189 CegarLoopUtils]: For program point L35-4(lines 35 45) no Hoare annotation was computed. [2020-12-23 07:45:11,722 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2020-12-23 07:45:11,722 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-23 07:45:11,722 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-23 07:45:11,722 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-23 07:45:11,723 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2020-12-23 07:45:11,723 INFO L189 CegarLoopUtils]: For program point L16(lines 16 19) no Hoare annotation was computed. [2020-12-23 07:45:11,723 INFO L185 CegarLoopUtils]: At program point L16-2(lines 38 39) the Hoare annotation is: (let ((.cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse1 (<= 1 ULTIMATE.start_main_~k~0)) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse3 (<= 1 ULTIMATE.start_main_~z~0))) (or (and (<= 1 ~counter~0) (= ULTIMATE.start_main_~x~0 1) .cse0 .cse1 (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) (<= 1 ULTIMATE.start_main_~c~0) .cse2 .cse3) (and (<= 2 ULTIMATE.start_main_~c~0) .cse0 .cse1 (= (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~z~0) ULTIMATE.start_main_~y~0) (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) 1) (+ ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~x~0)) .cse2 (<= 2 ~counter~0) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~z~0 1)) .cse3))) [2020-12-23 07:45:11,723 INFO L189 CegarLoopUtils]: For program point L16-3(lines 16 19) no Hoare annotation was computed. [2020-12-23 07:45:11,723 INFO L189 CegarLoopUtils]: For program point L12(lines 12 14) no Hoare annotation was computed. [2020-12-23 07:45:11,724 INFO L189 CegarLoopUtils]: For program point L12-1(lines 12 14) no Hoare annotation was computed. [2020-12-23 07:45:11,724 INFO L192 CegarLoopUtils]: At program point L16-5(lines 15 21) the Hoare annotation is: true [2020-12-23 07:45:11,724 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-23 07:45:11,724 INFO L192 CegarLoopUtils]: At program point L50(lines 23 51) the Hoare annotation is: true [2020-12-23 07:45:11,724 INFO L189 CegarLoopUtils]: For program point L17(lines 17 18) no Hoare annotation was computed. [2020-12-23 07:45:11,724 INFO L189 CegarLoopUtils]: For program point L17-1(lines 17 18) no Hoare annotation was computed. [2020-12-23 07:45:11,724 INFO L189 CegarLoopUtils]: For program point L13(line 13) no Hoare annotation was computed. [2020-12-23 07:45:11,724 INFO L189 CegarLoopUtils]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-12-23 07:45:11,725 INFO L189 CegarLoopUtils]: For program point L35-1(lines 35 45) no Hoare annotation was computed. [2020-12-23 07:45:11,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 07:45:11 BoogieIcfgContainer [2020-12-23 07:45:11,745 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 07:45:11,745 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 07:45:11,745 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 07:45:11,745 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 07:45:11,746 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:44:40" (3/4) ... [2020-12-23 07:45:11,749 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 07:45:11,758 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-12-23 07:45:11,759 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 07:45:11,759 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 07:45:11,759 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 07:45:11,809 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/nla-digbench-scaling/geo1-ll_unwindbound2.c-witness.graphml [2020-12-23 07:45:11,809 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 07:45:11,811 INFO L168 Benchmark]: Toolchain (without parser) took 32163.57 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 125.8 MB in the beginning and 69.7 MB in the end (delta: 56.1 MB). Peak memory consumption was 96.3 MB. Max. memory is 8.0 GB. [2020-12-23 07:45:11,811 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 123.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 07:45:11,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.85 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 115.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-23 07:45:11,814 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.12 ms. Allocated memory is still 151.0 MB. Free memory was 115.8 MB in the beginning and 114.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 07:45:11,815 INFO L168 Benchmark]: Boogie Preprocessor took 24.93 ms. Allocated memory is still 151.0 MB. Free memory was 114.2 MB in the beginning and 113.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 07:45:11,815 INFO L168 Benchmark]: RCFGBuilder took 338.21 ms. Allocated memory is still 151.0 MB. Free memory was 113.1 MB in the beginning and 100.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-12-23 07:45:11,816 INFO L168 Benchmark]: TraceAbstraction took 31382.91 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 99.7 MB in the beginning and 72.3 MB in the end (delta: 27.4 MB). Peak memory consumption was 67.0 MB. Max. memory is 8.0 GB. [2020-12-23 07:45:11,817 INFO L168 Benchmark]: Witness Printer took 64.44 ms. Allocated memory is still 189.8 MB. Free memory was 72.3 MB in the beginning and 69.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 07:45:11,821 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 123.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 305.85 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 115.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 37.12 ms. Allocated memory is still 151.0 MB. Free memory was 115.8 MB in the beginning and 114.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 24.93 ms. Allocated memory is still 151.0 MB. Free memory was 114.2 MB in the beginning and 113.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 338.21 ms. Allocated memory is still 151.0 MB. Free memory was 113.1 MB in the beginning and 100.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 31382.91 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 99.7 MB in the beginning and 72.3 MB in the end (delta: 27.4 MB). Peak memory consumption was 67.0 MB. Max. memory is 8.0 GB. * Witness Printer took 64.44 ms. Allocated memory is still 189.8 MB. Free memory was 72.3 MB in the beginning and 69.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((((x == 1 && 1 <= k) && z == y) && 1 <= c) && cond == 1) && 0 <= counter) && 1 <= z) || (((((1 <= k && x == z + z * z + 1) && y == z * z * z) && cond == 1) && 2 <= counter) && 1 <= z)) || (((((((1 <= counter && 2 <= c) && 1 == cond) && 1 <= k) && z * z == y) && cond == 1) && x == z + 1) && 1 <= z) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (((((((1 <= counter && x == 1) && 1 == cond) && 1 <= k) && z == y) && 1 <= c) && cond == 1) && 1 <= z) || ((((((((2 <= c && 1 == cond) && 1 <= k) && z * z == y) && z * x + 1 == y + x) && cond == 1) && 2 <= counter) && x == z + 1) && 1 <= z) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 27.0s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 16.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 109 SDslu, 106 SDs, 0 SdLazy, 110 SolverSat, 32 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 12.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 12.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=3, 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, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 145 HoareAnnotationTreeSize, 4 FomulaSimplifications, 42 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 4.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 6694 SizeOfPredicates, 24 NumberOfNonLiveVariables, 363 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 8/21 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 proved your program to be correct! Received shutdown request...