/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/egcd-ll_valuebound10.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 17:31:18,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 17:31:18,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 17:31:18,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 17:31:18,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 17:31:18,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 17:31:18,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 17:31:18,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 17:31:18,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 17:31:18,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 17:31:18,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 17:31:18,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 17:31:18,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 17:31:18,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 17:31:18,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 17:31:18,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 17:31:18,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 17:31:18,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 17:31:18,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 17:31:18,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 17:31:18,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 17:31:18,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 17:31:18,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 17:31:18,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 17:31:18,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 17:31:18,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 17:31:18,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 17:31:18,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 17:31:18,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 17:31:18,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 17:31:18,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 17:31:18,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 17:31:18,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 17:31:18,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 17:31:18,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 17:31:18,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 17:31:18,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 17:31:18,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 17:31:18,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 17:31:18,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 17:31:18,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 17:31:18,397 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 17:31:18,427 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 17:31:18,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 17:31:18,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 17:31:18,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 17:31:18,429 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 17:31:18,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 17:31:18,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 17:31:18,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 17:31:18,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 17:31:18,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 17:31:18,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 17:31:18,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 17:31:18,431 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 17:31:18,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 17:31:18,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 17:31:18,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 17:31:18,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 17:31:18,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 17:31:18,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 17:31:18,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 17:31:18,433 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 17:31:18,434 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 17:31:18,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 17:31:18,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 17:31:18,434 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 17:31:18,435 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 17:31:18,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 17:31:18,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 17:31:18,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 17:31:18,827 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 17:31:18,828 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 17:31:18,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound10.c [2021-01-06 17:31:18,914 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7b2ae9a9f/cf924e3f1e9c48448c34511a54f7469b/FLAGc7c9cacb4 [2021-01-06 17:31:19,584 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 17:31:19,585 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound10.c [2021-01-06 17:31:19,595 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7b2ae9a9f/cf924e3f1e9c48448c34511a54f7469b/FLAGc7c9cacb4 [2021-01-06 17:31:19,934 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7b2ae9a9f/cf924e3f1e9c48448c34511a54f7469b [2021-01-06 17:31:19,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 17:31:19,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 17:31:19,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 17:31:19,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 17:31:19,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 17:31:19,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 05:31:19" (1/1) ... [2021-01-06 17:31:19,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e38c9ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:31:19, skipping insertion in model container [2021-01-06 17:31:19,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 05:31:19" (1/1) ... [2021-01-06 17:31:19,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 17:31:19,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 17:31:20,154 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/egcd-ll_valuebound10.c[489,502] 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[~a~0,] left hand side expression in assignment: lhs: VariableLHS[~b~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~q~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~s~0,] left hand side expression in assignment: lhs: VariableLHS[~a~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~b~0,] left hand side expression in assignment: lhs: VariableLHS[~q~0,] left hand side expression in assignment: lhs: VariableLHS[~s~0,] [2021-01-06 17:31:20,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 17:31:20,191 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 17:31:20,207 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/egcd-ll_valuebound10.c[489,502] 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[~a~0,] left hand side expression in assignment: lhs: VariableLHS[~b~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~q~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~s~0,] left hand side expression in assignment: lhs: VariableLHS[~a~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~b~0,] left hand side expression in assignment: lhs: VariableLHS[~q~0,] left hand side expression in assignment: lhs: VariableLHS[~s~0,] [2021-01-06 17:31:20,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 17:31:20,236 INFO L208 MainTranslator]: Completed translation [2021-01-06 17:31:20,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:31:20 WrapperNode [2021-01-06 17:31:20,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 17:31:20,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 17:31:20,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 17:31:20,239 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 17:31:20,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:31:20" (1/1) ... [2021-01-06 17:31:20,258 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:31:20" (1/1) ... [2021-01-06 17:31:20,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 17:31:20,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 17:31:20,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 17:31:20,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 17:31:20,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:31:20" (1/1) ... [2021-01-06 17:31:20,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:31:20" (1/1) ... [2021-01-06 17:31:20,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:31:20" (1/1) ... [2021-01-06 17:31:20,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:31:20" (1/1) ... [2021-01-06 17:31:20,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:31:20" (1/1) ... [2021-01-06 17:31:20,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:31:20" (1/1) ... [2021-01-06 17:31:20,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:31:20" (1/1) ... [2021-01-06 17:31:20,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 17:31:20,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 17:31:20,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 17:31:20,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 17:31:20,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:31:20" (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 [2021-01-06 17:31:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 17:31:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 17:31:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 17:31:20,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 17:31:20,947 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 17:31:20,947 INFO L299 CfgBuilder]: Removed 27 assume(true) statements. [2021-01-06 17:31:20,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 05:31:20 BoogieIcfgContainer [2021-01-06 17:31:20,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 17:31:20,952 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 17:31:20,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 17:31:20,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 17:31:20,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 05:31:19" (1/3) ... [2021-01-06 17:31:20,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bcfa9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 05:31:20, skipping insertion in model container [2021-01-06 17:31:20,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:31:20" (2/3) ... [2021-01-06 17:31:20,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bcfa9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 05:31:20, skipping insertion in model container [2021-01-06 17:31:20,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 05:31:20" (3/3) ... [2021-01-06 17:31:20,960 INFO L111 eAbstractionObserver]: Analyzing ICFG egcd-ll_valuebound10.c [2021-01-06 17:31:20,968 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 17:31:20,973 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2021-01-06 17:31:20,994 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-01-06 17:31:21,027 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 17:31:21,027 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 17:31:21,027 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 17:31:21,027 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 17:31:21,028 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 17:31:21,028 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 17:31:21,028 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 17:31:21,028 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 17:31:21,046 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2021-01-06 17:31:21,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 17:31:21,053 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:21,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:21,055 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:21,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:21,063 INFO L82 PathProgramCache]: Analyzing trace with hash -144177098, now seen corresponding path program 1 times [2021-01-06 17:31:21,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:21,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184682424] [2021-01-06 17:31:21,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:31:21,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:31:21,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184682424] [2021-01-06 17:31:21,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:31:21,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 17:31:21,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780132318] [2021-01-06 17:31:21,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 17:31:21,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:31:21,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 17:31:21,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 17:31:21,364 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2021-01-06 17:31:21,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:31:21,401 INFO L93 Difference]: Finished difference Result 85 states and 112 transitions. [2021-01-06 17:31:21,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 17:31:21,403 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2021-01-06 17:31:21,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:31:21,426 INFO L225 Difference]: With dead ends: 85 [2021-01-06 17:31:21,427 INFO L226 Difference]: Without dead ends: 40 [2021-01-06 17:31:21,434 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 [2021-01-06 17:31:21,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-01-06 17:31:21,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-01-06 17:31:21,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2021-01-06 17:31:21,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2021-01-06 17:31:21,488 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 13 [2021-01-06 17:31:21,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:31:21,489 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2021-01-06 17:31:21,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 17:31:21,489 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2021-01-06 17:31:21,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 17:31:21,490 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:21,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:21,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 17:31:21,494 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:21,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:21,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1281167042, now seen corresponding path program 1 times [2021-01-06 17:31:21,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:21,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507127019] [2021-01-06 17:31:21,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:21,558 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:31:21,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [677947988] [2021-01-06 17:31:21,563 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 [2021-01-06 17:31:21,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:31:21,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 17 conjunts are in the unsatisfiable core [2021-01-06 17:31:21,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:31:21,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:31:21,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507127019] [2021-01-06 17:31:21,872 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:31:21,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677947988] [2021-01-06 17:31:21,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:31:21,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 17:31:21,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905569424] [2021-01-06 17:31:21,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 17:31:21,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:31:21,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 17:31:21,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 17:31:21,876 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 5 states. [2021-01-06 17:31:22,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:31:22,091 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2021-01-06 17:31:22,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 17:31:22,092 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-01-06 17:31:22,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:31:22,094 INFO L225 Difference]: With dead ends: 70 [2021-01-06 17:31:22,094 INFO L226 Difference]: Without dead ends: 66 [2021-01-06 17:31:22,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 17:31:22,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-01-06 17:31:22,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2021-01-06 17:31:22,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2021-01-06 17:31:22,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2021-01-06 17:31:22,108 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 13 [2021-01-06 17:31:22,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:31:22,108 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2021-01-06 17:31:22,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 17:31:22,109 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2021-01-06 17:31:22,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 17:31:22,109 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:22,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:22,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-01-06 17:31:22,324 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:22,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:22,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1454243009, now seen corresponding path program 1 times [2021-01-06 17:31:22,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:22,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442139747] [2021-01-06 17:31:22,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:22,347 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:31:22,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1125057908] [2021-01-06 17:31:22,348 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 [2021-01-06 17:31:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:31:22,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 32 conjunts are in the unsatisfiable core [2021-01-06 17:31:22,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:31:22,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:31:22,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442139747] [2021-01-06 17:31:22,999 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:31:23,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125057908] [2021-01-06 17:31:23,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:31:23,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-01-06 17:31:23,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336502748] [2021-01-06 17:31:23,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-01-06 17:31:23,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:31:23,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-01-06 17:31:23,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-01-06 17:31:23,003 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand 12 states. [2021-01-06 17:31:23,569 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 18 [2021-01-06 17:31:23,727 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 20 [2021-01-06 17:31:23,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:31:23,826 INFO L93 Difference]: Finished difference Result 98 states and 112 transitions. [2021-01-06 17:31:23,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-06 17:31:23,826 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2021-01-06 17:31:23,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:31:23,830 INFO L225 Difference]: With dead ends: 98 [2021-01-06 17:31:23,830 INFO L226 Difference]: Without dead ends: 96 [2021-01-06 17:31:23,831 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2021-01-06 17:31:23,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-01-06 17:31:23,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 70. [2021-01-06 17:31:23,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2021-01-06 17:31:23,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 84 transitions. [2021-01-06 17:31:23,846 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 84 transitions. Word has length 15 [2021-01-06 17:31:23,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:31:23,847 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 84 transitions. [2021-01-06 17:31:23,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-01-06 17:31:23,847 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 84 transitions. [2021-01-06 17:31:23,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-06 17:31:23,848 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:23,848 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:24,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:24,063 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:24,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:24,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1663317220, now seen corresponding path program 1 times [2021-01-06 17:31:24,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:24,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235105705] [2021-01-06 17:31:24,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:24,082 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:31:24,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1137264324] [2021-01-06 17:31:24,083 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 [2021-01-06 17:31:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:31:24,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 22 conjunts are in the unsatisfiable core [2021-01-06 17:31:24,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:31:24,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:31:24,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235105705] [2021-01-06 17:31:24,317 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:31:24,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137264324] [2021-01-06 17:31:24,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:31:24,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 17:31:24,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639243100] [2021-01-06 17:31:24,318 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 17:31:24,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:31:24,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 17:31:24,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-01-06 17:31:24,321 INFO L87 Difference]: Start difference. First operand 70 states and 84 transitions. Second operand 8 states. [2021-01-06 17:31:24,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:31:24,550 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2021-01-06 17:31:24,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-06 17:31:24,550 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2021-01-06 17:31:24,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:31:24,555 INFO L225 Difference]: With dead ends: 84 [2021-01-06 17:31:24,555 INFO L226 Difference]: Without dead ends: 76 [2021-01-06 17:31:24,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-01-06 17:31:24,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-01-06 17:31:24,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 68. [2021-01-06 17:31:24,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2021-01-06 17:31:24,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2021-01-06 17:31:24,572 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 17 [2021-01-06 17:31:24,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:31:24,572 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2021-01-06 17:31:24,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 17:31:24,572 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2021-01-06 17:31:24,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-01-06 17:31:24,573 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:24,573 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:24,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:24,789 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:24,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:24,790 INFO L82 PathProgramCache]: Analyzing trace with hash 850548497, now seen corresponding path program 1 times [2021-01-06 17:31:24,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:24,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361193700] [2021-01-06 17:31:24,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:24,806 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:31:24,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1387291936] [2021-01-06 17:31:24,807 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 [2021-01-06 17:31:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:31:24,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-06 17:31:24,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:31:24,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:31:24,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361193700] [2021-01-06 17:31:24,892 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:31:24,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387291936] [2021-01-06 17:31:24,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:31:24,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 17:31:24,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227216053] [2021-01-06 17:31:24,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 17:31:24,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:31:24,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 17:31:24,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 17:31:24,895 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand 4 states. [2021-01-06 17:31:24,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:31:24,944 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2021-01-06 17:31:24,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 17:31:24,945 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2021-01-06 17:31:24,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:31:24,946 INFO L225 Difference]: With dead ends: 68 [2021-01-06 17:31:24,946 INFO L226 Difference]: Without dead ends: 66 [2021-01-06 17:31:24,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 17:31:24,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-01-06 17:31:24,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-01-06 17:31:24,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2021-01-06 17:31:24,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2021-01-06 17:31:24,957 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 76 transitions. Word has length 20 [2021-01-06 17:31:24,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:31:24,957 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 76 transitions. [2021-01-06 17:31:24,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 17:31:24,958 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 76 transitions. [2021-01-06 17:31:24,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 17:31:24,959 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:24,959 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:25,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:25,173 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:25,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:25,174 INFO L82 PathProgramCache]: Analyzing trace with hash 598848193, now seen corresponding path program 1 times [2021-01-06 17:31:25,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:25,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705671880] [2021-01-06 17:31:25,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:25,190 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:31:25,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [118367882] [2021-01-06 17:31:25,191 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:25,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:31:25,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 19 conjunts are in the unsatisfiable core [2021-01-06 17:31:25,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:31:25,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-01-06 17:31:25,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705671880] [2021-01-06 17:31:25,294 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:31:25,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118367882] [2021-01-06 17:31:25,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:31:25,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-01-06 17:31:25,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900781904] [2021-01-06 17:31:25,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 17:31:25,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:31:25,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 17:31:25,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 17:31:25,297 INFO L87 Difference]: Start difference. First operand 66 states and 76 transitions. Second operand 5 states. [2021-01-06 17:31:25,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:31:25,400 INFO L93 Difference]: Finished difference Result 88 states and 95 transitions. [2021-01-06 17:31:25,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 17:31:25,401 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2021-01-06 17:31:25,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:31:25,402 INFO L225 Difference]: With dead ends: 88 [2021-01-06 17:31:25,402 INFO L226 Difference]: Without dead ends: 84 [2021-01-06 17:31:25,403 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 17:31:25,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-01-06 17:31:25,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 72. [2021-01-06 17:31:25,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2021-01-06 17:31:25,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2021-01-06 17:31:25,413 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 21 [2021-01-06 17:31:25,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:31:25,414 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2021-01-06 17:31:25,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 17:31:25,414 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2021-01-06 17:31:25,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-06 17:31:25,415 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:25,415 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:25,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-01-06 17:31:25,629 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:25,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:25,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1333477300, now seen corresponding path program 1 times [2021-01-06 17:31:25,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:25,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784719744] [2021-01-06 17:31:25,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:25,646 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:31:25,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [21209893] [2021-01-06 17:31:25,647 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:31:25,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 17:31:25,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:31:25,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:31:25,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784719744] [2021-01-06 17:31:25,910 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:31:25,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21209893] [2021-01-06 17:31:25,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:31:25,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 17:31:25,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228382743] [2021-01-06 17:31:25,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 17:31:25,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:31:25,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 17:31:25,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-01-06 17:31:25,912 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand 8 states. [2021-01-06 17:31:26,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:31:26,179 INFO L93 Difference]: Finished difference Result 80 states and 90 transitions. [2021-01-06 17:31:26,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 17:31:26,180 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2021-01-06 17:31:26,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:31:26,181 INFO L225 Difference]: With dead ends: 80 [2021-01-06 17:31:26,181 INFO L226 Difference]: Without dead ends: 72 [2021-01-06 17:31:26,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-01-06 17:31:26,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-01-06 17:31:26,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2021-01-06 17:31:26,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2021-01-06 17:31:26,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 78 transitions. [2021-01-06 17:31:26,217 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 78 transitions. Word has length 22 [2021-01-06 17:31:26,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:31:26,217 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 78 transitions. [2021-01-06 17:31:26,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 17:31:26,218 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 78 transitions. [2021-01-06 17:31:26,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-06 17:31:26,219 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:26,219 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:26,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:26,433 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:26,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:26,434 INFO L82 PathProgramCache]: Analyzing trace with hash -89606074, now seen corresponding path program 1 times [2021-01-06 17:31:26,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:26,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661596868] [2021-01-06 17:31:26,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:26,449 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:31:26,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1721789837] [2021-01-06 17:31:26,450 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:31:26,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 36 conjunts are in the unsatisfiable core [2021-01-06 17:31:26,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:31:26,711 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:31:26,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661596868] [2021-01-06 17:31:26,712 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:31:26,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721789837] [2021-01-06 17:31:26,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:31:26,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-01-06 17:31:26,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97321750] [2021-01-06 17:31:26,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 17:31:26,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:31:26,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 17:31:26,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-06 17:31:26,714 INFO L87 Difference]: Start difference. First operand 70 states and 78 transitions. Second operand 9 states. [2021-01-06 17:31:27,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:31:27,217 INFO L93 Difference]: Finished difference Result 105 states and 115 transitions. [2021-01-06 17:31:27,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-06 17:31:27,218 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2021-01-06 17:31:27,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:31:27,219 INFO L225 Difference]: With dead ends: 105 [2021-01-06 17:31:27,219 INFO L226 Difference]: Without dead ends: 103 [2021-01-06 17:31:27,220 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-01-06 17:31:27,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-01-06 17:31:27,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 74. [2021-01-06 17:31:27,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2021-01-06 17:31:27,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 82 transitions. [2021-01-06 17:31:27,232 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 82 transitions. Word has length 23 [2021-01-06 17:31:27,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:31:27,232 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 82 transitions. [2021-01-06 17:31:27,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 17:31:27,232 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 82 transitions. [2021-01-06 17:31:27,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 17:31:27,233 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:27,233 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:27,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:27,449 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:27,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:27,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1021281049, now seen corresponding path program 1 times [2021-01-06 17:31:27,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:27,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238273889] [2021-01-06 17:31:27,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:27,464 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:31:27,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1119072436] [2021-01-06 17:31:27,465 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:31:27,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 43 conjunts are in the unsatisfiable core [2021-01-06 17:31:27,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:31:27,747 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:31:27,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238273889] [2021-01-06 17:31:27,750 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:31:27,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119072436] [2021-01-06 17:31:27,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:31:27,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-01-06 17:31:27,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862245999] [2021-01-06 17:31:27,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-01-06 17:31:27,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:31:27,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-01-06 17:31:27,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-01-06 17:31:27,753 INFO L87 Difference]: Start difference. First operand 74 states and 82 transitions. Second operand 11 states. [2021-01-06 17:31:28,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:31:28,212 INFO L93 Difference]: Finished difference Result 118 states and 130 transitions. [2021-01-06 17:31:28,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-01-06 17:31:28,212 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2021-01-06 17:31:28,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:31:28,214 INFO L225 Difference]: With dead ends: 118 [2021-01-06 17:31:28,214 INFO L226 Difference]: Without dead ends: 104 [2021-01-06 17:31:28,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-01-06 17:31:28,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-01-06 17:31:28,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 96. [2021-01-06 17:31:28,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2021-01-06 17:31:28,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 109 transitions. [2021-01-06 17:31:28,241 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 109 transitions. Word has length 25 [2021-01-06 17:31:28,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:31:28,242 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 109 transitions. [2021-01-06 17:31:28,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-01-06 17:31:28,242 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 109 transitions. [2021-01-06 17:31:28,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-01-06 17:31:28,250 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:28,250 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:28,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-01-06 17:31:28,465 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:28,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:28,466 INFO L82 PathProgramCache]: Analyzing trace with hash 477321350, now seen corresponding path program 1 times [2021-01-06 17:31:28,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:28,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18056140] [2021-01-06 17:31:28,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:28,482 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:31:28,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [497245890] [2021-01-06 17:31:28,482 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:31:28,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 31 conjunts are in the unsatisfiable core [2021-01-06 17:31:28,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:31:28,680 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:31:28,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18056140] [2021-01-06 17:31:28,680 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:31:28,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497245890] [2021-01-06 17:31:28,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:31:28,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-01-06 17:31:28,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399929737] [2021-01-06 17:31:28,682 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 17:31:28,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:31:28,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 17:31:28,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-01-06 17:31:28,683 INFO L87 Difference]: Start difference. First operand 96 states and 109 transitions. Second operand 8 states. [2021-01-06 17:31:28,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:31:28,965 INFO L93 Difference]: Finished difference Result 116 states and 130 transitions. [2021-01-06 17:31:28,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-06 17:31:28,966 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2021-01-06 17:31:28,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:31:28,967 INFO L225 Difference]: With dead ends: 116 [2021-01-06 17:31:28,967 INFO L226 Difference]: Without dead ends: 106 [2021-01-06 17:31:28,968 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-01-06 17:31:28,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-01-06 17:31:28,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 103. [2021-01-06 17:31:28,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2021-01-06 17:31:28,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2021-01-06 17:31:28,982 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 29 [2021-01-06 17:31:28,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:31:28,983 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2021-01-06 17:31:28,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 17:31:28,983 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2021-01-06 17:31:28,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-01-06 17:31:28,984 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:28,984 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:29,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:29,199 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:29,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:29,199 INFO L82 PathProgramCache]: Analyzing trace with hash 219215494, now seen corresponding path program 2 times [2021-01-06 17:31:29,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:29,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181302543] [2021-01-06 17:31:29,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:29,213 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:31:29,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [333353643] [2021-01-06 17:31:29,213 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:29,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 17:31:29,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 17:31:29,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 33 conjunts are in the unsatisfiable core [2021-01-06 17:31:29,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:31:29,431 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:31:29,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181302543] [2021-01-06 17:31:29,432 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:31:29,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333353643] [2021-01-06 17:31:29,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:31:29,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-01-06 17:31:29,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368849626] [2021-01-06 17:31:29,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 17:31:29,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:31:29,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 17:31:29,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-01-06 17:31:29,434 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand 8 states. [2021-01-06 17:31:29,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:31:29,824 INFO L93 Difference]: Finished difference Result 131 states and 147 transitions. [2021-01-06 17:31:29,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-06 17:31:29,824 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2021-01-06 17:31:29,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:31:29,826 INFO L225 Difference]: With dead ends: 131 [2021-01-06 17:31:29,826 INFO L226 Difference]: Without dead ends: 127 [2021-01-06 17:31:29,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-01-06 17:31:29,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-01-06 17:31:29,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 114. [2021-01-06 17:31:29,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2021-01-06 17:31:29,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 131 transitions. [2021-01-06 17:31:29,848 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 131 transitions. Word has length 29 [2021-01-06 17:31:29,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:31:29,849 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 131 transitions. [2021-01-06 17:31:29,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 17:31:29,849 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 131 transitions. [2021-01-06 17:31:29,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-01-06 17:31:29,853 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:29,853 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:30,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:30,067 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:30,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:30,069 INFO L82 PathProgramCache]: Analyzing trace with hash -855526903, now seen corresponding path program 1 times [2021-01-06 17:31:30,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:30,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815448091] [2021-01-06 17:31:30,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:30,084 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:31:30,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1464648537] [2021-01-06 17:31:30,085 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:31:30,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 37 conjunts are in the unsatisfiable core [2021-01-06 17:31:30,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:31:30,303 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:31:30,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815448091] [2021-01-06 17:31:30,303 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:31:30,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464648537] [2021-01-06 17:31:30,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:31:30,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-01-06 17:31:30,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469052975] [2021-01-06 17:31:30,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 17:31:30,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:31:30,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 17:31:30,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-06 17:31:30,306 INFO L87 Difference]: Start difference. First operand 114 states and 131 transitions. Second operand 8 states. [2021-01-06 17:31:30,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:31:30,642 INFO L93 Difference]: Finished difference Result 142 states and 160 transitions. [2021-01-06 17:31:30,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-06 17:31:30,642 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2021-01-06 17:31:30,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:31:30,644 INFO L225 Difference]: With dead ends: 142 [2021-01-06 17:31:30,644 INFO L226 Difference]: Without dead ends: 140 [2021-01-06 17:31:30,644 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-01-06 17:31:30,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-01-06 17:31:30,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 114. [2021-01-06 17:31:30,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2021-01-06 17:31:30,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 130 transitions. [2021-01-06 17:31:30,658 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 130 transitions. Word has length 31 [2021-01-06 17:31:30,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:31:30,658 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 130 transitions. [2021-01-06 17:31:30,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 17:31:30,659 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 130 transitions. [2021-01-06 17:31:30,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-01-06 17:31:30,659 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:30,659 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:30,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-01-06 17:31:30,876 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:30,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:30,877 INFO L82 PathProgramCache]: Analyzing trace with hash 155590347, now seen corresponding path program 2 times [2021-01-06 17:31:30,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:30,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635860104] [2021-01-06 17:31:30,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:30,890 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:31:30,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2124777503] [2021-01-06 17:31:30,890 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:30,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 17:31:30,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 17:31:30,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 48 conjunts are in the unsatisfiable core [2021-01-06 17:31:30,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:31:31,234 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:31:31,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635860104] [2021-01-06 17:31:31,235 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:31:31,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124777503] [2021-01-06 17:31:31,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:31:31,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-01-06 17:31:31,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185365554] [2021-01-06 17:31:31,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-01-06 17:31:31,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:31:31,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-01-06 17:31:31,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-01-06 17:31:31,237 INFO L87 Difference]: Start difference. First operand 114 states and 130 transitions. Second operand 11 states. [2021-01-06 17:31:31,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:31:31,793 INFO L93 Difference]: Finished difference Result 148 states and 166 transitions. [2021-01-06 17:31:31,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-06 17:31:31,794 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2021-01-06 17:31:31,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:31:31,795 INFO L225 Difference]: With dead ends: 148 [2021-01-06 17:31:31,795 INFO L226 Difference]: Without dead ends: 146 [2021-01-06 17:31:31,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2021-01-06 17:31:31,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-01-06 17:31:31,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 118. [2021-01-06 17:31:31,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2021-01-06 17:31:31,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 134 transitions. [2021-01-06 17:31:31,811 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 134 transitions. Word has length 31 [2021-01-06 17:31:31,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:31:31,811 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 134 transitions. [2021-01-06 17:31:31,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-01-06 17:31:31,811 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 134 transitions. [2021-01-06 17:31:31,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-01-06 17:31:31,812 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:31,812 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:32,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-01-06 17:31:32,027 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:32,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:32,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1663177194, now seen corresponding path program 2 times [2021-01-06 17:31:32,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:32,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351149867] [2021-01-06 17:31:32,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:32,045 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:31:32,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1214685921] [2021-01-06 17:31:32,046 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:32,105 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 17:31:32,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 17:31:32,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 44 conjunts are in the unsatisfiable core [2021-01-06 17:31:32,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:31:32,323 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:31:32,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351149867] [2021-01-06 17:31:32,324 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:31:32,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214685921] [2021-01-06 17:31:32,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:31:32,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-01-06 17:31:32,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117339245] [2021-01-06 17:31:32,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 17:31:32,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:31:32,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 17:31:32,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-06 17:31:32,326 INFO L87 Difference]: Start difference. First operand 118 states and 134 transitions. Second operand 9 states. [2021-01-06 17:31:32,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:31:32,628 INFO L93 Difference]: Finished difference Result 160 states and 180 transitions. [2021-01-06 17:31:32,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-06 17:31:32,628 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2021-01-06 17:31:32,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:31:32,629 INFO L225 Difference]: With dead ends: 160 [2021-01-06 17:31:32,630 INFO L226 Difference]: Without dead ends: 148 [2021-01-06 17:31:32,630 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-01-06 17:31:32,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-01-06 17:31:32,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 126. [2021-01-06 17:31:32,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2021-01-06 17:31:32,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 143 transitions. [2021-01-06 17:31:32,647 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 143 transitions. Word has length 33 [2021-01-06 17:31:32,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:31:32,648 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 143 transitions. [2021-01-06 17:31:32,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 17:31:32,648 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 143 transitions. [2021-01-06 17:31:32,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-01-06 17:31:32,648 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:32,648 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:32,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-01-06 17:31:32,863 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:32,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:32,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1610721748, now seen corresponding path program 1 times [2021-01-06 17:31:32,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:32,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105235582] [2021-01-06 17:31:32,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:32,876 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:31:32,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2050618644] [2021-01-06 17:31:32,877 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:31:32,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 39 conjunts are in the unsatisfiable core [2021-01-06 17:31:32,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:31:33,109 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:31:33,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105235582] [2021-01-06 17:31:33,110 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:31:33,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050618644] [2021-01-06 17:31:33,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:31:33,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-01-06 17:31:33,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207650458] [2021-01-06 17:31:33,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 17:31:33,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:31:33,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 17:31:33,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-06 17:31:33,111 INFO L87 Difference]: Start difference. First operand 126 states and 143 transitions. Second operand 8 states. [2021-01-06 17:31:33,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:31:33,433 INFO L93 Difference]: Finished difference Result 159 states and 177 transitions. [2021-01-06 17:31:33,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-06 17:31:33,434 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2021-01-06 17:31:33,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:31:33,435 INFO L225 Difference]: With dead ends: 159 [2021-01-06 17:31:33,435 INFO L226 Difference]: Without dead ends: 147 [2021-01-06 17:31:33,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-01-06 17:31:33,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-01-06 17:31:33,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 119. [2021-01-06 17:31:33,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2021-01-06 17:31:33,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 134 transitions. [2021-01-06 17:31:33,450 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 134 transitions. Word has length 33 [2021-01-06 17:31:33,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:31:33,450 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 134 transitions. [2021-01-06 17:31:33,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 17:31:33,450 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 134 transitions. [2021-01-06 17:31:33,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-06 17:31:33,451 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:33,451 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:33,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:33,666 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:33,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:33,667 INFO L82 PathProgramCache]: Analyzing trace with hash 130855945, now seen corresponding path program 3 times [2021-01-06 17:31:33,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:33,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488796843] [2021-01-06 17:31:33,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:33,677 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:31:33,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323967159] [2021-01-06 17:31:33,678 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:33,768 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-01-06 17:31:33,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 17:31:33,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 31 conjunts are in the unsatisfiable core [2021-01-06 17:31:33,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:31:34,009 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-01-06 17:31:34,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488796843] [2021-01-06 17:31:34,010 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:31:34,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323967159] [2021-01-06 17:31:34,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:31:34,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-01-06 17:31:34,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079979192] [2021-01-06 17:31:34,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-01-06 17:31:34,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:31:34,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-01-06 17:31:34,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-01-06 17:31:34,012 INFO L87 Difference]: Start difference. First operand 119 states and 134 transitions. Second operand 11 states. [2021-01-06 17:31:34,990 WARN L197 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2021-01-06 17:31:35,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:31:35,292 INFO L93 Difference]: Finished difference Result 172 states and 190 transitions. [2021-01-06 17:31:35,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-06 17:31:35,293 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2021-01-06 17:31:35,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:31:35,295 INFO L225 Difference]: With dead ends: 172 [2021-01-06 17:31:35,295 INFO L226 Difference]: Without dead ends: 162 [2021-01-06 17:31:35,296 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2021-01-06 17:31:35,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-01-06 17:31:35,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 130. [2021-01-06 17:31:35,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2021-01-06 17:31:35,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 149 transitions. [2021-01-06 17:31:35,316 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 149 transitions. Word has length 37 [2021-01-06 17:31:35,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:31:35,317 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 149 transitions. [2021-01-06 17:31:35,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-01-06 17:31:35,317 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 149 transitions. [2021-01-06 17:31:35,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-06 17:31:35,317 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:35,317 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:35,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-01-06 17:31:35,532 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:35,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:35,532 INFO L82 PathProgramCache]: Analyzing trace with hash -127249911, now seen corresponding path program 4 times [2021-01-06 17:31:35,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:35,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737422478] [2021-01-06 17:31:35,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:35,544 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:31:35,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [129544744] [2021-01-06 17:31:35,545 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:35,596 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 17:31:35,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 17:31:35,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 37 conjunts are in the unsatisfiable core [2021-01-06 17:31:35,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:31:35,757 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:31:35,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737422478] [2021-01-06 17:31:35,757 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:31:35,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129544744] [2021-01-06 17:31:35,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:31:35,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-01-06 17:31:35,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983996378] [2021-01-06 17:31:35,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 17:31:35,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:31:35,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 17:31:35,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-01-06 17:31:35,760 INFO L87 Difference]: Start difference. First operand 130 states and 149 transitions. Second operand 9 states. [2021-01-06 17:31:36,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:31:36,209 INFO L93 Difference]: Finished difference Result 162 states and 183 transitions. [2021-01-06 17:31:36,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 17:31:36,209 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2021-01-06 17:31:36,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:31:36,211 INFO L225 Difference]: With dead ends: 162 [2021-01-06 17:31:36,211 INFO L226 Difference]: Without dead ends: 158 [2021-01-06 17:31:36,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2021-01-06 17:31:36,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-01-06 17:31:36,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 142. [2021-01-06 17:31:36,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2021-01-06 17:31:36,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 162 transitions. [2021-01-06 17:31:36,260 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 162 transitions. Word has length 37 [2021-01-06 17:31:36,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:31:36,260 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 162 transitions. [2021-01-06 17:31:36,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 17:31:36,260 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 162 transitions. [2021-01-06 17:31:36,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-06 17:31:36,261 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:36,261 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:36,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-01-06 17:31:36,476 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:36,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:36,477 INFO L82 PathProgramCache]: Analyzing trace with hash -127309493, now seen corresponding path program 5 times [2021-01-06 17:31:36,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:36,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713634464] [2021-01-06 17:31:36,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:36,487 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:31:36,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1291551936] [2021-01-06 17:31:36,488 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:37,496 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-01-06 17:31:37,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 17:31:37,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 23 conjunts are in the unsatisfiable core [2021-01-06 17:31:37,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:31:37,609 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:31:37,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713634464] [2021-01-06 17:31:37,609 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:31:37,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291551936] [2021-01-06 17:31:37,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:31:37,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-01-06 17:31:37,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137410022] [2021-01-06 17:31:37,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 17:31:37,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:31:37,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 17:31:37,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-06 17:31:37,614 INFO L87 Difference]: Start difference. First operand 142 states and 162 transitions. Second operand 7 states. [2021-01-06 17:31:37,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:31:37,858 INFO L93 Difference]: Finished difference Result 162 states and 183 transitions. [2021-01-06 17:31:37,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-06 17:31:37,859 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2021-01-06 17:31:37,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:31:37,860 INFO L225 Difference]: With dead ends: 162 [2021-01-06 17:31:37,860 INFO L226 Difference]: Without dead ends: 152 [2021-01-06 17:31:37,861 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-01-06 17:31:37,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-01-06 17:31:37,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 142. [2021-01-06 17:31:37,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2021-01-06 17:31:37,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 162 transitions. [2021-01-06 17:31:37,883 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 162 transitions. Word has length 37 [2021-01-06 17:31:37,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:31:37,883 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 162 transitions. [2021-01-06 17:31:37,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 17:31:37,883 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 162 transitions. [2021-01-06 17:31:37,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-06 17:31:37,884 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:37,884 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:38,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-01-06 17:31:38,093 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:38,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:38,094 INFO L82 PathProgramCache]: Analyzing trace with hash 948563977, now seen corresponding path program 6 times [2021-01-06 17:31:38,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:38,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40531635] [2021-01-06 17:31:38,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:38,103 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:31:38,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [747991178] [2021-01-06 17:31:38,104 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:38,172 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-01-06 17:31:38,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 17:31:38,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 36 conjunts are in the unsatisfiable core [2021-01-06 17:31:38,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:31:38,353 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:31:38,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40531635] [2021-01-06 17:31:38,353 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:31:38,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747991178] [2021-01-06 17:31:38,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:31:38,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-01-06 17:31:38,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001329495] [2021-01-06 17:31:38,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 17:31:38,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:31:38,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 17:31:38,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-01-06 17:31:38,358 INFO L87 Difference]: Start difference. First operand 142 states and 162 transitions. Second operand 9 states. [2021-01-06 17:31:38,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:31:38,945 INFO L93 Difference]: Finished difference Result 170 states and 192 transitions. [2021-01-06 17:31:38,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-06 17:31:38,946 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2021-01-06 17:31:38,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:31:38,947 INFO L225 Difference]: With dead ends: 170 [2021-01-06 17:31:38,947 INFO L226 Difference]: Without dead ends: 166 [2021-01-06 17:31:38,948 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2021-01-06 17:31:38,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-01-06 17:31:38,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 146. [2021-01-06 17:31:38,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2021-01-06 17:31:38,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 167 transitions. [2021-01-06 17:31:38,970 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 167 transitions. Word has length 37 [2021-01-06 17:31:38,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:31:38,971 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 167 transitions. [2021-01-06 17:31:38,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 17:31:38,971 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 167 transitions. [2021-01-06 17:31:38,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-06 17:31:38,971 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:38,971 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:39,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:39,187 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:39,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:39,188 INFO L82 PathProgramCache]: Analyzing trace with hash 948504395, now seen corresponding path program 7 times [2021-01-06 17:31:39,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:39,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73025929] [2021-01-06 17:31:39,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:39,197 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:31:39,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [884476336] [2021-01-06 17:31:39,197 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:31:39,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 35 conjunts are in the unsatisfiable core [2021-01-06 17:31:39,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:31:39,402 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:31:39,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73025929] [2021-01-06 17:31:39,403 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:31:39,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884476336] [2021-01-06 17:31:39,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:31:39,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-01-06 17:31:39,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588681324] [2021-01-06 17:31:39,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 17:31:39,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:31:39,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 17:31:39,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-01-06 17:31:39,404 INFO L87 Difference]: Start difference. First operand 146 states and 167 transitions. Second operand 9 states. [2021-01-06 17:31:39,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:31:39,806 INFO L93 Difference]: Finished difference Result 166 states and 188 transitions. [2021-01-06 17:31:39,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 17:31:39,806 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2021-01-06 17:31:39,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:31:39,808 INFO L225 Difference]: With dead ends: 166 [2021-01-06 17:31:39,808 INFO L226 Difference]: Without dead ends: 156 [2021-01-06 17:31:39,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2021-01-06 17:31:39,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-01-06 17:31:39,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 138. [2021-01-06 17:31:39,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2021-01-06 17:31:39,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 158 transitions. [2021-01-06 17:31:39,849 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 158 transitions. Word has length 37 [2021-01-06 17:31:39,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:31:39,849 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 158 transitions. [2021-01-06 17:31:39,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 17:31:39,849 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 158 transitions. [2021-01-06 17:31:39,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-06 17:31:39,850 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:39,850 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:40,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:40,064 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:40,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:40,065 INFO L82 PathProgramCache]: Analyzing trace with hash 690398539, now seen corresponding path program 8 times [2021-01-06 17:31:40,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:40,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116339203] [2021-01-06 17:31:40,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:40,074 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:31:40,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2008118249] [2021-01-06 17:31:40,074 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:40,127 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 17:31:40,127 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 17:31:40,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 35 conjunts are in the unsatisfiable core [2021-01-06 17:31:40,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:31:40,286 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:31:40,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116339203] [2021-01-06 17:31:40,286 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:31:40,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008118249] [2021-01-06 17:31:40,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:31:40,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-01-06 17:31:40,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025659053] [2021-01-06 17:31:40,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 17:31:40,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:31:40,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 17:31:40,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-01-06 17:31:40,288 INFO L87 Difference]: Start difference. First operand 138 states and 158 transitions. Second operand 9 states. [2021-01-06 17:31:40,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:31:40,947 INFO L93 Difference]: Finished difference Result 166 states and 188 transitions. [2021-01-06 17:31:40,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-06 17:31:40,948 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2021-01-06 17:31:40,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:31:40,949 INFO L225 Difference]: With dead ends: 166 [2021-01-06 17:31:40,949 INFO L226 Difference]: Without dead ends: 162 [2021-01-06 17:31:40,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2021-01-06 17:31:40,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-01-06 17:31:40,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 142. [2021-01-06 17:31:40,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2021-01-06 17:31:40,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 163 transitions. [2021-01-06 17:31:40,970 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 163 transitions. Word has length 37 [2021-01-06 17:31:40,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:31:40,971 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 163 transitions. [2021-01-06 17:31:40,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 17:31:40,971 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 163 transitions. [2021-01-06 17:31:40,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-01-06 17:31:40,971 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:31:40,972 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:31:41,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-01-06 17:31:41,186 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:31:41,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:31:41,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1198667980, now seen corresponding path program 2 times [2021-01-06 17:31:41,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:31:41,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430659187] [2021-01-06 17:31:41,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:31:41,197 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:31:41,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1829186598] [2021-01-06 17:31:41,197 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 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:31:41,256 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 17:31:41,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 17:31:41,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 56 conjunts are in the unsatisfiable core [2021-01-06 17:31:41,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:31:43,565 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (* c_ULTIMATE.start_main_~p~0 c_ULTIMATE.start_main_~x~0)) (.cse3 (* c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~y~0)) (.cse5 (* c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~y~0))) (let ((.cse1 (+ .cse3 .cse5)) (.cse0 (+ .cse4 c_ULTIMATE.start_main_~a~0))) (and (= c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~x~0) (<= .cse0 .cse1) (= c_ULTIMATE.start_main_~r~0 0) (let ((.cse2 (= c_ULTIMATE.start_main_~b~0 (+ .cse3 (* c_ULTIMATE.start_main_~q~0 c_ULTIMATE.start_main_~x~0))))) (or (and (= 0 c_ULTIMATE.start___VERIFIER_assert_~cond) (not .cse2)) (and (= 1 c_ULTIMATE.start___VERIFIER_assert_~cond) .cse2))) (<= 1 c_ULTIMATE.start_main_~x~0) (= .cse1 (+ .cse4 c_ULTIMATE.start_main_~b~0 c_ULTIMATE.start_main_~a~0)) (not (= .cse1 .cse0)) (= (+ .cse3 .cse5 c_ULTIMATE.start_main_~a~0) (+ .cse4 c_ULTIMATE.start_main_~y~0)) (= (+ c_ULTIMATE.start_main_~q~0 (* 2 c_ULTIMATE.start_main_~p~0)) 0)))) is different from false [2021-01-06 17:32:03,048 WARN L197 SmtUtils]: Spent 13.05 s on a formula simplification that was a NOOP. DAG size: 34 [2021-01-06 17:32:03,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430659187] [2021-01-06 17:32:03,068 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:32:03,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829186598] [2021-01-06 17:32:03,069 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2021-01-06 17:32:03,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:32:03,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-01-06 17:32:03,069 ERROR L205 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-01-06 17:32:03,069 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 17:32:03,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-01-06 17:32:03,303 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2021-01-06 17:32:03,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 05:32:03 BoogieIcfgContainer [2021-01-06 17:32:03,304 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 17:32:03,304 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 17:32:03,304 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 17:32:03,305 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 17:32:03,305 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 05:31:20" (3/4) ... [2021-01-06 17:32:03,310 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-01-06 17:32:03,310 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 17:32:03,312 INFO L168 Benchmark]: Toolchain (without parser) took 43371.27 ms. Allocated memory was 151.0 MB in the beginning and 286.3 MB in the end (delta: 135.3 MB). Free memory was 126.8 MB in the beginning and 230.7 MB in the end (delta: -103.9 MB). Peak memory consumption was 31.7 MB. Max. memory is 8.0 GB. [2021-01-06 17:32:03,313 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 125.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 17:32:03,314 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.09 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 116.4 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-01-06 17:32:03,315 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.53 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 114.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 17:32:03,315 INFO L168 Benchmark]: Boogie Preprocessor took 27.92 ms. Allocated memory is still 151.0 MB. Free memory was 114.7 MB in the beginning and 113.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 17:32:03,321 INFO L168 Benchmark]: RCFGBuilder took 634.72 ms. Allocated memory is still 151.0 MB. Free memory was 113.5 MB in the beginning and 130.3 MB in the end (delta: -16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-01-06 17:32:03,322 INFO L168 Benchmark]: TraceAbstraction took 42351.80 ms. Allocated memory was 151.0 MB in the beginning and 286.3 MB in the end (delta: 135.3 MB). Free memory was 129.8 MB in the beginning and 231.2 MB in the end (delta: -101.4 MB). Peak memory consumption was 34.9 MB. Max. memory is 8.0 GB. [2021-01-06 17:32:03,322 INFO L168 Benchmark]: Witness Printer took 6.10 ms. Allocated memory is still 286.3 MB. Free memory was 231.2 MB in the beginning and 230.7 MB in the end (delta: 522.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 17:32:03,328 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 151.0 MB. Free memory is still 125.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 293.09 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 116.4 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 47.53 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 114.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.92 ms. Allocated memory is still 151.0 MB. Free memory was 114.7 MB in the beginning and 113.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 634.72 ms. Allocated memory is still 151.0 MB. Free memory was 113.5 MB in the beginning and 130.3 MB in the end (delta: -16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 42351.80 ms. Allocated memory was 151.0 MB in the beginning and 286.3 MB in the end (delta: 135.3 MB). Free memory was 129.8 MB in the beginning and 231.2 MB in the end (delta: -101.4 MB). Peak memory consumption was 34.9 MB. Max. memory is 8.0 GB. * Witness Printer took 6.10 ms. Allocated memory is still 286.3 MB. Free memory was 231.2 MB in the beginning and 230.7 MB in the end (delta: 522.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: 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: [L19] long long a, b, p, q, r, s; [L20] int x, y; [L21] x = __VERIFIER_nondet_int() [L8] COND FALSE !(!cond) [L23] y = __VERIFIER_nondet_int() [L8] COND FALSE !(!cond) [L8] COND FALSE !(!cond) [L8] COND FALSE !(!cond) [L28] a = x [L29] b = y [L30] p = 1 [L31] q = 0 [L32] r = 0 [L33] s = 1 [L35] COND TRUE 1 [L11] COND FALSE !(!(cond)) [L11] COND FALSE !(!(cond)) [L11] COND FALSE !(!(cond)) [L40] COND FALSE !(!(a != b)) [L43] COND FALSE !(a > b) [L48] b = b - a [L49] q = q - p [L50] s = s - r [L35] COND TRUE 1 [L11] COND FALSE !(!(cond)) [L11] COND FALSE !(!(cond)) [L11] COND FALSE !(!(cond)) [L40] COND FALSE !(!(a != b)) [L43] COND FALSE !(a > b) [L48] b = b - a [L49] q = q - p [L50] s = s - r [L35] COND TRUE 1 [L11] COND FALSE !(!(cond)) [L11] COND FALSE !(!(cond)) [L11] COND FALSE !(!(cond)) [L40] COND FALSE !(!(a != b)) [L43] COND TRUE a > b [L44] a = a - b [L45] p = p - q [L46] r = r - s [L35] COND TRUE 1 [L11] COND FALSE !(!(cond)) [L11] COND TRUE !(cond) [L13] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 42.2s, OverallIterations: 22, TraceHistogramMax: 4, AutomataDifference: 8.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 714 SDtfs, 1785 SDslu, 2227 SDs, 0 SdLazy, 3219 SolverSat, 295 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 660 GetRequests, 417 SyntacticMatches, 1 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 21 MinimizatonAttempts, 333 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 577 NumberOfCodeBlocks, 566 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 556 ConstructedInterpolants, 0 QuantifiedInterpolants, 215917 SizeOfPredicates, 207 NumberOfNonLiveVariables, 2350 ConjunctsInSsa, 624 ConjunctsInUnsatCore, 21 InterpolantComputations, 6 PerfectInterpolantSequences, 24/288 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...