/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/hard-ll_valuebound50.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 17:47:54,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 17:47:54,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 17:47:54,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 17:47:54,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 17:47:54,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 17:47:54,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 17:47:54,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 17:47:54,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 17:47:54,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 17:47:54,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 17:47:54,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 17:47:54,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 17:47:54,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 17:47:54,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 17:47:54,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 17:47:54,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 17:47:54,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 17:47:54,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 17:47:54,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 17:47:54,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 17:47:54,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 17:47:54,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 17:47:54,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 17:47:54,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 17:47:54,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 17:47:54,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 17:47:54,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 17:47:54,727 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 17:47:54,788 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 17:47:54,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 17:47:54,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 17:47:54,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 17:47:54,793 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 17:47:54,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 17:47:54,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 17:47:54,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 17:47:54,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 17:47:54,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 17:47:54,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 17:47:54,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 17:47:54,796 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 17:47:54,797 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 17:47:54,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 17:47:54,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 17:47:54,798 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 17:47:54,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 17:47:54,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 17:47:54,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 17:47:54,799 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 17:47:54,799 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 17:47:54,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 17:47:54,800 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 17:47:54,800 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 17:47:54,800 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 17:47:55,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 17:47:55,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 17:47:55,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 17:47:55,271 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 17:47:55,271 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 17:47:55,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound50.c [2021-01-06 17:47:55,364 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9f588902b/282b5c63cd7c4c0f9786b5a20b460b24/FLAG5ae69781c [2021-01-06 17:47:56,036 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 17:47:56,037 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound50.c [2021-01-06 17:47:56,044 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9f588902b/282b5c63cd7c4c0f9786b5a20b460b24/FLAG5ae69781c [2021-01-06 17:47:56,404 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9f588902b/282b5c63cd7c4c0f9786b5a20b460b24 [2021-01-06 17:47:56,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 17:47:56,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 17:47:56,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 17:47:56,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 17:47:56,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 17:47:56,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 05:47:56" (1/1) ... [2021-01-06 17:47:56,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@770b375d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:47:56, skipping insertion in model container [2021-01-06 17:47:56,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 05:47:56" (1/1) ... [2021-01-06 17:47:56,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 17:47:56,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 17:47:56,690 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/hard-ll_valuebound50.c[538,551] 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[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~d~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[~d~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~d~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[~q~0,] [2021-01-06 17:47:56,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 17:47:56,756 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 17:47:56,774 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/hard-ll_valuebound50.c[538,551] 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[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~d~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[~d~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~d~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[~q~0,] [2021-01-06 17:47:56,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 17:47:56,816 INFO L208 MainTranslator]: Completed translation [2021-01-06 17:47:56,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:47:56 WrapperNode [2021-01-06 17:47:56,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 17:47:56,819 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 17:47:56,819 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 17:47:56,819 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 17:47:56,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:47:56" (1/1) ... [2021-01-06 17:47:56,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:47:56" (1/1) ... [2021-01-06 17:47:56,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 17:47:56,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 17:47:56,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 17:47:56,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 17:47:56,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:47:56" (1/1) ... [2021-01-06 17:47:56,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:47:56" (1/1) ... [2021-01-06 17:47:56,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:47:56" (1/1) ... [2021-01-06 17:47:56,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:47:56" (1/1) ... [2021-01-06 17:47:56,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:47:56" (1/1) ... [2021-01-06 17:47:56,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:47:56" (1/1) ... [2021-01-06 17:47:56,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:47:56" (1/1) ... [2021-01-06 17:47:56,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 17:47:56,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 17:47:56,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 17:47:56,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 17:47:56,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:47:56" (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 17:47:56,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 17:47:56,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 17:47:56,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 17:47:56,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 17:47:57,507 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 17:47:57,507 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-01-06 17:47:57,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 05:47:57 BoogieIcfgContainer [2021-01-06 17:47:57,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 17:47:57,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 17:47:57,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 17:47:57,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 17:47:57,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 05:47:56" (1/3) ... [2021-01-06 17:47:57,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ffa8ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 05:47:57, skipping insertion in model container [2021-01-06 17:47:57,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:47:56" (2/3) ... [2021-01-06 17:47:57,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ffa8ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 05:47:57, skipping insertion in model container [2021-01-06 17:47:57,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 05:47:57" (3/3) ... [2021-01-06 17:47:57,533 INFO L111 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound50.c [2021-01-06 17:47:57,540 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 17:47:57,544 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2021-01-06 17:47:57,564 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-01-06 17:47:57,592 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 17:47:57,592 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 17:47:57,592 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 17:47:57,593 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 17:47:57,593 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 17:47:57,593 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 17:47:57,593 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 17:47:57,593 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 17:47:57,610 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2021-01-06 17:47:57,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-01-06 17:47:57,616 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:47:57,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:47:57,617 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 17:47:57,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:47:57,624 INFO L82 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2021-01-06 17:47:57,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:47:57,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463202355] [2021-01-06 17:47:57,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:47:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:47:57,790 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 17:47:57,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463202355] [2021-01-06 17:47:57,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:47:57,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 17:47:57,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629974222] [2021-01-06 17:47:57,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 17:47:57,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:47:57,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 17:47:57,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 17:47:57,816 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2021-01-06 17:47:57,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:47:57,839 INFO L93 Difference]: Finished difference Result 83 states and 114 transitions. [2021-01-06 17:47:57,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 17:47:57,840 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2021-01-06 17:47:57,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:47:57,850 INFO L225 Difference]: With dead ends: 83 [2021-01-06 17:47:57,850 INFO L226 Difference]: Without dead ends: 39 [2021-01-06 17:47:57,854 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 17:47:57,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-01-06 17:47:57,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-01-06 17:47:57,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2021-01-06 17:47:57,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2021-01-06 17:47:57,896 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 11 [2021-01-06 17:47:57,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:47:57,897 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2021-01-06 17:47:57,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 17:47:57,897 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2021-01-06 17:47:57,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-01-06 17:47:57,898 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:47:57,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:47:57,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 17:47:57,899 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 17:47:57,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:47:57,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2021-01-06 17:47:57,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:47:57,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662700367] [2021-01-06 17:47:57,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:47:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:47:57,993 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 17:47:57,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662700367] [2021-01-06 17:47:57,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:47:57,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 17:47:57,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388421045] [2021-01-06 17:47:57,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 17:47:57,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:47:57,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 17:47:57,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 17:47:57,998 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 4 states. [2021-01-06 17:47:58,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:47:58,110 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2021-01-06 17:47:58,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 17:47:58,111 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-01-06 17:47:58,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:47:58,112 INFO L225 Difference]: With dead ends: 58 [2021-01-06 17:47:58,113 INFO L226 Difference]: Without dead ends: 56 [2021-01-06 17:47:58,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 17:47:58,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-01-06 17:47:58,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 37. [2021-01-06 17:47:58,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-01-06 17:47:58,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2021-01-06 17:47:58,123 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 11 [2021-01-06 17:47:58,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:47:58,123 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2021-01-06 17:47:58,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 17:47:58,123 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2021-01-06 17:47:58,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 17:47:58,124 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:47:58,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:47:58,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 17:47:58,125 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 17:47:58,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:47:58,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1277171076, now seen corresponding path program 1 times [2021-01-06 17:47:58,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:47:58,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263815958] [2021-01-06 17:47:58,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:47:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:47:58,253 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 17:47:58,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263815958] [2021-01-06 17:47:58,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:47:58,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 17:47:58,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381818353] [2021-01-06 17:47:58,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 17:47:58,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:47:58,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 17:47:58,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 17:47:58,257 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 4 states. [2021-01-06 17:47:58,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:47:58,368 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2021-01-06 17:47:58,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 17:47:58,369 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2021-01-06 17:47:58,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:47:58,370 INFO L225 Difference]: With dead ends: 56 [2021-01-06 17:47:58,371 INFO L226 Difference]: Without dead ends: 54 [2021-01-06 17:47:58,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 17:47:58,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-01-06 17:47:58,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 35. [2021-01-06 17:47:58,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2021-01-06 17:47:58,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2021-01-06 17:47:58,381 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 13 [2021-01-06 17:47:58,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:47:58,382 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2021-01-06 17:47:58,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 17:47:58,382 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2021-01-06 17:47:58,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 17:47:58,383 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:47:58,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:47:58,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 17:47:58,383 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 17:47:58,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:47:58,384 INFO L82 PathProgramCache]: Analyzing trace with hash 999399167, now seen corresponding path program 1 times [2021-01-06 17:47:58,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:47:58,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010498776] [2021-01-06 17:47:58,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:47:58,411 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:47:58,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [451270134] [2021-01-06 17:47:58,412 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 17:47:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:47:58,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 17 conjunts are in the unsatisfiable core [2021-01-06 17:47:58,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:47:58,655 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 17:47:58,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010498776] [2021-01-06 17:47:58,656 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:47:58,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451270134] [2021-01-06 17:47:58,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:47:58,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 17:47:58,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965415758] [2021-01-06 17:47:58,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 17:47:58,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:47:58,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 17:47:58,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-01-06 17:47:58,659 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 6 states. [2021-01-06 17:47:58,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:47:58,897 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2021-01-06 17:47:58,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 17:47:58,897 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-01-06 17:47:58,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:47:58,899 INFO L225 Difference]: With dead ends: 76 [2021-01-06 17:47:58,899 INFO L226 Difference]: Without dead ends: 54 [2021-01-06 17:47:58,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-01-06 17:47:58,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-01-06 17:47:58,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 49. [2021-01-06 17:47:58,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2021-01-06 17:47:58,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2021-01-06 17:47:58,913 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 15 [2021-01-06 17:47:58,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:47:58,913 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2021-01-06 17:47:58,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 17:47:58,913 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2021-01-06 17:47:58,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 17:47:58,914 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:47:58,914 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:47:59,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:47:59,129 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 17:47:59,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:47:59,131 INFO L82 PathProgramCache]: Analyzing trace with hash 392223696, now seen corresponding path program 1 times [2021-01-06 17:47:59,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:47:59,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570717682] [2021-01-06 17:47:59,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:47:59,148 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:47:59,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [843671911] [2021-01-06 17:47:59,149 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 17:47:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:47:59,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 25 conjunts are in the unsatisfiable core [2021-01-06 17:47:59,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:47:59,523 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 17:47:59,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570717682] [2021-01-06 17:47:59,524 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:47:59,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843671911] [2021-01-06 17:47:59,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:47:59,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 17:47:59,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129163832] [2021-01-06 17:47:59,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 17:47:59,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:47:59,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 17:47:59,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-01-06 17:47:59,527 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 9 states. [2021-01-06 17:47:59,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:47:59,941 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2021-01-06 17:47:59,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 17:47:59,942 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2021-01-06 17:47:59,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:47:59,943 INFO L225 Difference]: With dead ends: 67 [2021-01-06 17:47:59,944 INFO L226 Difference]: Without dead ends: 56 [2021-01-06 17:47:59,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-01-06 17:47:59,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-01-06 17:47:59,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2021-01-06 17:47:59,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2021-01-06 17:47:59,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2021-01-06 17:47:59,955 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 18 [2021-01-06 17:47:59,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:47:59,955 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2021-01-06 17:47:59,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 17:47:59,955 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2021-01-06 17:47:59,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-06 17:47:59,956 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:47:59,957 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:48:00,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:48:00,171 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 17:48:00,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:48:00,173 INFO L82 PathProgramCache]: Analyzing trace with hash 434992196, now seen corresponding path program 1 times [2021-01-06 17:48:00,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:48:00,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278999302] [2021-01-06 17:48:00,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:48:00,190 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:48:00,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1041818891] [2021-01-06 17:48:00,191 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 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 17:48:00,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:48:00,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 28 conjunts are in the unsatisfiable core [2021-01-06 17:48:00,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:48:00,468 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 17:48:00,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278999302] [2021-01-06 17:48:00,468 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:48:00,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041818891] [2021-01-06 17:48:00,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:48:00,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-01-06 17:48:00,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003231309] [2021-01-06 17:48:00,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 17:48:00,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:48:00,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 17:48:00,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-01-06 17:48:00,472 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 9 states. [2021-01-06 17:48:01,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:48:01,033 INFO L93 Difference]: Finished difference Result 102 states and 117 transitions. [2021-01-06 17:48:01,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 17:48:01,034 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2021-01-06 17:48:01,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:48:01,035 INFO L225 Difference]: With dead ends: 102 [2021-01-06 17:48:01,035 INFO L226 Difference]: Without dead ends: 65 [2021-01-06 17:48:01,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-01-06 17:48:01,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-01-06 17:48:01,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2021-01-06 17:48:01,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2021-01-06 17:48:01,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2021-01-06 17:48:01,047 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 22 [2021-01-06 17:48:01,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:48:01,047 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2021-01-06 17:48:01,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 17:48:01,047 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2021-01-06 17:48:01,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-01-06 17:48:01,048 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:48:01,049 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:48:01,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:48:01,264 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 17:48:01,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:48:01,265 INFO L82 PathProgramCache]: Analyzing trace with hash -919005345, now seen corresponding path program 2 times [2021-01-06 17:48:01,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:48:01,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184719898] [2021-01-06 17:48:01,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:48:01,287 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:48:01,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1390818359] [2021-01-06 17:48:01,290 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 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 17:48:01,353 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 17:48:01,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 17:48:01,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 38 conjunts are in the unsatisfiable core [2021-01-06 17:48:01,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:48:03,584 WARN L197 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 28 [2021-01-06 17:48:05,722 WARN L197 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 21 DAG size of output: 13 [2021-01-06 17:48:05,890 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:48:05,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184719898] [2021-01-06 17:48:05,891 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:48:05,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390818359] [2021-01-06 17:48:05,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:48:05,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-01-06 17:48:05,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966206253] [2021-01-06 17:48:05,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-01-06 17:48:05,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:48:05,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-01-06 17:48:05,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-01-06 17:48:05,893 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand 12 states. [2021-01-06 17:48:07,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:48:07,026 INFO L93 Difference]: Finished difference Result 127 states and 144 transitions. [2021-01-06 17:48:07,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-01-06 17:48:07,026 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29 [2021-01-06 17:48:07,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:48:07,029 INFO L225 Difference]: With dead ends: 127 [2021-01-06 17:48:07,029 INFO L226 Difference]: Without dead ends: 109 [2021-01-06 17:48:07,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2021-01-06 17:48:07,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-01-06 17:48:07,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 100. [2021-01-06 17:48:07,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2021-01-06 17:48:07,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2021-01-06 17:48:07,050 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 29 [2021-01-06 17:48:07,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:48:07,051 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2021-01-06 17:48:07,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-01-06 17:48:07,051 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2021-01-06 17:48:07,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-01-06 17:48:07,052 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:48:07,052 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:48:07,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:48:07,268 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 17:48:07,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:48:07,269 INFO L82 PathProgramCache]: Analyzing trace with hash -36466664, now seen corresponding path program 1 times [2021-01-06 17:48:07,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:48:07,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281174025] [2021-01-06 17:48:07,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:48:07,283 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:48:07,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [900539514] [2021-01-06 17:48:07,283 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 17:48:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:48:07,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 33 conjunts are in the unsatisfiable core [2021-01-06 17:48:07,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:48:07,719 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:48:07,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281174025] [2021-01-06 17:48:07,719 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:48:07,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900539514] [2021-01-06 17:48:07,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:48:07,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-01-06 17:48:07,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094378850] [2021-01-06 17:48:07,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 17:48:07,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:48:07,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 17:48:07,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-01-06 17:48:07,722 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 10 states. [2021-01-06 17:48:08,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:48:08,465 INFO L93 Difference]: Finished difference Result 125 states and 144 transitions. [2021-01-06 17:48:08,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-06 17:48:08,467 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2021-01-06 17:48:08,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:48:08,468 INFO L225 Difference]: With dead ends: 125 [2021-01-06 17:48:08,468 INFO L226 Difference]: Without dead ends: 123 [2021-01-06 17:48:08,469 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2021-01-06 17:48:08,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-01-06 17:48:08,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 111. [2021-01-06 17:48:08,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2021-01-06 17:48:08,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 131 transitions. [2021-01-06 17:48:08,487 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 131 transitions. Word has length 31 [2021-01-06 17:48:08,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:48:08,487 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 131 transitions. [2021-01-06 17:48:08,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 17:48:08,487 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 131 transitions. [2021-01-06 17:48:08,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-01-06 17:48:08,489 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:48:08,489 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:48:08,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:48:08,704 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 17:48:08,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:48:08,705 INFO L82 PathProgramCache]: Analyzing trace with hash -684568005, now seen corresponding path program 1 times [2021-01-06 17:48:08,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:48:08,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589692380] [2021-01-06 17:48:08,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:48:08,733 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:48:08,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1445324054] [2021-01-06 17:48:08,734 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 17:48:08,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:48:08,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 36 conjunts are in the unsatisfiable core [2021-01-06 17:48:08,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:48:09,029 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 17:48:09,069 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 17:48:09,074 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 17:48:09,080 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 17:48:09,384 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:48:09,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589692380] [2021-01-06 17:48:09,384 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:48:09,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445324054] [2021-01-06 17:48:09,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:48:09,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-01-06 17:48:09,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387817461] [2021-01-06 17:48:09,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-01-06 17:48:09,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:48:09,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-01-06 17:48:09,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-01-06 17:48:09,387 INFO L87 Difference]: Start difference. First operand 111 states and 131 transitions. Second operand 12 states. [2021-01-06 17:48:10,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:48:10,567 INFO L93 Difference]: Finished difference Result 131 states and 152 transitions. [2021-01-06 17:48:10,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-06 17:48:10,567 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 33 [2021-01-06 17:48:10,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:48:10,568 INFO L225 Difference]: With dead ends: 131 [2021-01-06 17:48:10,569 INFO L226 Difference]: Without dead ends: 94 [2021-01-06 17:48:10,569 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2021-01-06 17:48:10,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-01-06 17:48:10,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2021-01-06 17:48:10,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2021-01-06 17:48:10,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 108 transitions. [2021-01-06 17:48:10,584 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 108 transitions. Word has length 33 [2021-01-06 17:48:10,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:48:10,585 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 108 transitions. [2021-01-06 17:48:10,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-01-06 17:48:10,585 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 108 transitions. [2021-01-06 17:48:10,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-01-06 17:48:10,586 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:48:10,586 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:48:10,799 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:48:10,800 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 17:48:10,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:48:10,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1277177884, now seen corresponding path program 3 times [2021-01-06 17:48:10,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:48:10,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307405613] [2021-01-06 17:48:10,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:48:10,832 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:48:10,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1356673335] [2021-01-06 17:48:10,834 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 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 17:48:10,884 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-01-06 17:48:10,884 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 17:48:10,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 26 conjunts are in the unsatisfiable core [2021-01-06 17:48:10,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:48:21,752 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-01-06 17:48:21,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307405613] [2021-01-06 17:48:21,753 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:48:21,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356673335] [2021-01-06 17:48:21,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:48:21,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-01-06 17:48:21,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996495053] [2021-01-06 17:48:21,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 17:48:21,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:48:21,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 17:48:21,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=46, Unknown=5, NotChecked=0, Total=72 [2021-01-06 17:48:21,755 INFO L87 Difference]: Start difference. First operand 94 states and 108 transitions. Second operand 9 states. [2021-01-06 17:49:21,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:49:21,699 INFO L93 Difference]: Finished difference Result 108 states and 120 transitions. [2021-01-06 17:49:21,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-06 17:49:21,700 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2021-01-06 17:49:21,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:49:21,701 INFO L225 Difference]: With dead ends: 108 [2021-01-06 17:49:21,701 INFO L226 Difference]: Without dead ends: 104 [2021-01-06 17:49:21,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 23.2s TimeCoverageRelationStatistics Valid=40, Invalid=84, Unknown=8, NotChecked=0, Total=132 [2021-01-06 17:49:21,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-01-06 17:49:21,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 96. [2021-01-06 17:49:21,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2021-01-06 17:49:21,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2021-01-06 17:49:21,736 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 36 [2021-01-06 17:49:21,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:49:21,736 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2021-01-06 17:49:21,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 17:49:21,736 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2021-01-06 17:49:21,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-01-06 17:49:21,739 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:49:21,740 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:49:21,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-01-06 17:49:21,948 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 17:49:21,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:49:21,949 INFO L82 PathProgramCache]: Analyzing trace with hash -642892963, now seen corresponding path program 2 times [2021-01-06 17:49:21,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:49:21,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472229389] [2021-01-06 17:49:21,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:49:21,961 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:49:21,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1071367737] [2021-01-06 17:49:21,961 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 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 17:49:22,074 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 17:49:22,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 17:49:22,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 47 conjunts are in the unsatisfiable core [2021-01-06 17:49:22,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:49:22,451 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:49:22,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472229389] [2021-01-06 17:49:22,451 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:49:22,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071367737] [2021-01-06 17:49:22,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:49:22,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-01-06 17:49:22,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108341530] [2021-01-06 17:49:22,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-01-06 17:49:22,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:49:22,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-01-06 17:49:22,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-01-06 17:49:22,454 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 11 states. [2021-01-06 17:49:23,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:49:23,470 INFO L93 Difference]: Finished difference Result 147 states and 170 transitions. [2021-01-06 17:49:23,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-06 17:49:23,470 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 38 [2021-01-06 17:49:23,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:49:23,472 INFO L225 Difference]: With dead ends: 147 [2021-01-06 17:49:23,472 INFO L226 Difference]: Without dead ends: 116 [2021-01-06 17:49:23,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2021-01-06 17:49:23,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-01-06 17:49:23,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 102. [2021-01-06 17:49:23,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2021-01-06 17:49:23,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 118 transitions. [2021-01-06 17:49:23,488 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 118 transitions. Word has length 38 [2021-01-06 17:49:23,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:49:23,488 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 118 transitions. [2021-01-06 17:49:23,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-01-06 17:49:23,489 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 118 transitions. [2021-01-06 17:49:23,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-06 17:49:23,490 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:49:23,490 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:49:23,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-01-06 17:49:23,704 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 17:49:23,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:49:23,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1707275894, now seen corresponding path program 3 times [2021-01-06 17:49:23,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:49:23,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098711547] [2021-01-06 17:49:23,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:49:23,717 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:49:23,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1679483779] [2021-01-06 17:49:23,718 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 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 17:49:23,815 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-01-06 17:49:23,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 17:49:23,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 55 conjunts are in the unsatisfiable core [2021-01-06 17:49:23,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:49:24,443 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:49:24,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098711547] [2021-01-06 17:49:24,444 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:49:24,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679483779] [2021-01-06 17:49:24,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:49:24,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-01-06 17:49:24,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085967070] [2021-01-06 17:49:24,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-01-06 17:49:24,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:49:24,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-01-06 17:49:24,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-01-06 17:49:24,446 INFO L87 Difference]: Start difference. First operand 102 states and 118 transitions. Second operand 14 states. [2021-01-06 17:49:26,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:49:26,227 INFO L93 Difference]: Finished difference Result 146 states and 168 transitions. [2021-01-06 17:49:26,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-01-06 17:49:26,228 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 44 [2021-01-06 17:49:26,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:49:26,229 INFO L225 Difference]: With dead ends: 146 [2021-01-06 17:49:26,229 INFO L226 Difference]: Without dead ends: 115 [2021-01-06 17:49:26,230 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2021-01-06 17:49:26,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-01-06 17:49:26,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 102. [2021-01-06 17:49:26,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2021-01-06 17:49:26,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 117 transitions. [2021-01-06 17:49:26,243 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 117 transitions. Word has length 44 [2021-01-06 17:49:26,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:49:26,243 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 117 transitions. [2021-01-06 17:49:26,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-01-06 17:49:26,244 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 117 transitions. [2021-01-06 17:49:26,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-06 17:49:26,245 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:49:26,245 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:49:26,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:49:26,460 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 17:49:26,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:49:26,461 INFO L82 PathProgramCache]: Analyzing trace with hash -2100302904, now seen corresponding path program 1 times [2021-01-06 17:49:26,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:49:26,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265518930] [2021-01-06 17:49:26,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:49:26,485 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:49:26,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [810410515] [2021-01-06 17:49:26,485 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 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 17:49:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:49:26,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2021-01-06 17:49:26,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:49:26,657 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 17:49:26,660 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 17:49:26,666 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 17:49:26,674 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 17:49:26,683 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 17:49:26,690 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 17:49:26,707 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-06 17:49:26,774 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-01-06 17:49:26,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265518930] [2021-01-06 17:49:26,775 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:49:26,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810410515] [2021-01-06 17:49:26,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:49:26,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 17:49:26,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415815234] [2021-01-06 17:49:26,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 17:49:26,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:49:26,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 17:49:26,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 17:49:26,777 INFO L87 Difference]: Start difference. First operand 102 states and 117 transitions. Second operand 5 states. [2021-01-06 17:49:26,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:49:26,872 INFO L93 Difference]: Finished difference Result 130 states and 147 transitions. [2021-01-06 17:49:26,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 17:49:26,874 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2021-01-06 17:49:26,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:49:26,875 INFO L225 Difference]: With dead ends: 130 [2021-01-06 17:49:26,875 INFO L226 Difference]: Without dead ends: 91 [2021-01-06 17:49:26,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 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 17:49:26,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-01-06 17:49:26,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 87. [2021-01-06 17:49:26,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2021-01-06 17:49:26,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 96 transitions. [2021-01-06 17:49:26,887 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 96 transitions. Word has length 44 [2021-01-06 17:49:26,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:49:26,887 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 96 transitions. [2021-01-06 17:49:26,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 17:49:26,887 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 96 transitions. [2021-01-06 17:49:26,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-06 17:49:26,888 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:49:26,889 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:49:27,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:49:27,101 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 17:49:27,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:49:27,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1027491960, now seen corresponding path program 4 times [2021-01-06 17:49:27,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:49:27,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423775344] [2021-01-06 17:49:27,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:49:27,113 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:49:27,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [450562766] [2021-01-06 17:49:27,113 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 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 17:49:27,258 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 17:49:27,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 17:49:27,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 50 conjunts are in the unsatisfiable core [2021-01-06 17:49:27,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:49:27,857 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:49:27,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423775344] [2021-01-06 17:49:27,859 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:49:27,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450562766] [2021-01-06 17:49:27,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:49:27,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-01-06 17:49:27,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073247305] [2021-01-06 17:49:27,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-01-06 17:49:27,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:49:27,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-01-06 17:49:27,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-01-06 17:49:27,863 INFO L87 Difference]: Start difference. First operand 87 states and 96 transitions. Second operand 13 states. [2021-01-06 17:49:29,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:49:29,366 INFO L93 Difference]: Finished difference Result 126 states and 137 transitions. [2021-01-06 17:49:29,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-06 17:49:29,367 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 45 [2021-01-06 17:49:29,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:49:29,368 INFO L225 Difference]: With dead ends: 126 [2021-01-06 17:49:29,368 INFO L226 Difference]: Without dead ends: 118 [2021-01-06 17:49:29,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2021-01-06 17:49:29,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-01-06 17:49:29,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 100. [2021-01-06 17:49:29,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2021-01-06 17:49:29,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 110 transitions. [2021-01-06 17:49:29,381 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 110 transitions. Word has length 45 [2021-01-06 17:49:29,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:49:29,381 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 110 transitions. [2021-01-06 17:49:29,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-01-06 17:49:29,381 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 110 transitions. [2021-01-06 17:49:29,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-01-06 17:49:29,382 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:49:29,382 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:49:29,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-01-06 17:49:29,595 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 17:49:29,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:49:29,597 INFO L82 PathProgramCache]: Analyzing trace with hash -14469331, now seen corresponding path program 2 times [2021-01-06 17:49:29,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:49:29,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123118408] [2021-01-06 17:49:29,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:49:29,612 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:49:29,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1198399155] [2021-01-06 17:49:29,615 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 17:49:29,707 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 17:49:29,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 17:49:29,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 51 conjunts are in the unsatisfiable core [2021-01-06 17:49:29,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:49:30,330 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:49:30,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123118408] [2021-01-06 17:49:30,331 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:49:30,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198399155] [2021-01-06 17:49:30,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:49:30,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2021-01-06 17:49:30,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589636896] [2021-01-06 17:49:30,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-01-06 17:49:30,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:49:30,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-01-06 17:49:30,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2021-01-06 17:49:30,333 INFO L87 Difference]: Start difference. First operand 100 states and 110 transitions. Second operand 16 states. [2021-01-06 17:49:31,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:49:31,743 INFO L93 Difference]: Finished difference Result 126 states and 139 transitions. [2021-01-06 17:49:31,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-01-06 17:49:31,744 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 46 [2021-01-06 17:49:31,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:49:31,745 INFO L225 Difference]: With dead ends: 126 [2021-01-06 17:49:31,745 INFO L226 Difference]: Without dead ends: 102 [2021-01-06 17:49:31,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=178, Invalid=752, Unknown=0, NotChecked=0, Total=930 [2021-01-06 17:49:31,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-01-06 17:49:31,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2021-01-06 17:49:31,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2021-01-06 17:49:31,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 108 transitions. [2021-01-06 17:49:31,757 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 108 transitions. Word has length 46 [2021-01-06 17:49:31,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:49:31,758 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 108 transitions. [2021-01-06 17:49:31,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-01-06 17:49:31,758 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 108 transitions. [2021-01-06 17:49:31,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-06 17:49:31,759 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:49:31,759 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:49:31,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-01-06 17:49:31,970 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 17:49:31,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:49:31,971 INFO L82 PathProgramCache]: Analyzing trace with hash -422546789, now seen corresponding path program 3 times [2021-01-06 17:49:31,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:49:31,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672390723] [2021-01-06 17:49:31,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:49:31,982 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:49:31,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1776512336] [2021-01-06 17:49:31,982 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 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 17:49:32,110 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-01-06 17:49:32,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 17:49:32,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 43 conjunts are in the unsatisfiable core [2021-01-06 17:49:32,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:50:03,522 WARN L197 SmtUtils]: Spent 17.80 s on a formula simplification that was a NOOP. DAG size: 32 [2021-01-06 17:50:15,807 WARN L197 SmtUtils]: Spent 6.05 s on a formula simplification that was a NOOP. DAG size: 24 [2021-01-06 17:50:24,277 WARN L197 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 42 DAG size of output: 35 [2021-01-06 17:50:24,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672390723] [2021-01-06 17:50:24,295 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:50:24,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776512336] [2021-01-06 17:50:24,296 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2021-01-06 17:50:24,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:50:24,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-01-06 17:50:24,296 ERROR L205 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-01-06 17:50:24,296 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 17:50:24,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-01-06 17:50:24,536 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2021-01-06 17:50:24,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 05:50:24 BoogieIcfgContainer [2021-01-06 17:50:24,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 17:50:24,537 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 17:50:24,537 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 17:50:24,537 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 17:50:24,538 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 05:47:57" (3/4) ... [2021-01-06 17:50:24,541 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-01-06 17:50:24,541 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 17:50:24,543 INFO L168 Benchmark]: Toolchain (without parser) took 148133.25 ms. Allocated memory was 159.4 MB in the beginning and 216.0 MB in the end (delta: 56.6 MB). Free memory was 135.4 MB in the beginning and 186.8 MB in the end (delta: -51.4 MB). Peak memory consumption was 6.0 MB. Max. memory is 8.0 GB. [2021-01-06 17:50:24,543 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 159.4 MB. Free memory is still 134.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 17:50:24,544 INFO L168 Benchmark]: CACSL2BoogieTranslator took 406.49 ms. Allocated memory is still 159.4 MB. Free memory was 135.2 MB in the beginning and 125.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-01-06 17:50:24,545 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.52 ms. Allocated memory is still 159.4 MB. Free memory was 125.2 MB in the beginning and 123.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 17:50:24,545 INFO L168 Benchmark]: Boogie Preprocessor took 28.03 ms. Allocated memory is still 159.4 MB. Free memory was 123.5 MB in the beginning and 122.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 17:50:24,549 INFO L168 Benchmark]: RCFGBuilder took 623.11 ms. Allocated memory is still 159.4 MB. Free memory was 122.3 MB in the beginning and 138.4 MB in the end (delta: -16.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-01-06 17:50:24,553 INFO L168 Benchmark]: TraceAbstraction took 147018.72 ms. Allocated memory was 159.4 MB in the beginning and 216.0 MB in the end (delta: 56.6 MB). Free memory was 137.9 MB in the beginning and 187.3 MB in the end (delta: -49.4 MB). Peak memory consumption was 123.7 MB. Max. memory is 8.0 GB. [2021-01-06 17:50:24,553 INFO L168 Benchmark]: Witness Printer took 4.75 ms. Allocated memory is still 216.0 MB. Free memory is still 186.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 17:50:24,563 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 159.4 MB. Free memory is still 134.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 406.49 ms. Allocated memory is still 159.4 MB. Free memory was 135.2 MB in the beginning and 125.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 44.52 ms. Allocated memory is still 159.4 MB. Free memory was 125.2 MB in the beginning and 123.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.03 ms. Allocated memory is still 159.4 MB. Free memory was 123.5 MB in the beginning and 122.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 623.11 ms. Allocated memory is still 159.4 MB. Free memory was 122.3 MB in the beginning and 138.4 MB in the end (delta: -16.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 147018.72 ms. Allocated memory was 159.4 MB in the beginning and 216.0 MB in the end (delta: 56.6 MB). Free memory was 137.9 MB in the beginning and 187.3 MB in the end (delta: -49.4 MB). Peak memory consumption was 123.7 MB. Max. memory is 8.0 GB. * Witness Printer took 4.75 ms. Allocated memory is still 216.0 MB. Free memory is still 186.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 17]: 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: [L23] unsigned int A, B; [L24] long long r, d, p, q; [L25] A = __VERIFIER_nondet_uint() [L12] COND FALSE !(!cond) [L27] B = __VERIFIER_nondet_uint() [L12] COND FALSE !(!cond) [L12] COND FALSE !(!cond) [L31] r = A [L32] d = B [L33] p = 1 [L34] q = 0 [L36] COND TRUE 1 [L15] COND FALSE !(!(cond)) [L15] COND FALSE !(!(cond)) [L15] COND FALSE !(!(cond)) [L40] COND FALSE !(!(r >= d)) [L42] d = 2 * d [L43] p = 2 * p [L36] COND TRUE 1 [L15] COND FALSE !(!(cond)) [L15] COND FALSE !(!(cond)) [L15] COND FALSE !(!(cond)) [L40] COND FALSE !(!(r >= d)) [L42] d = 2 * d [L43] p = 2 * p [L36] COND TRUE 1 [L15] COND FALSE !(!(cond)) [L15] COND FALSE !(!(cond)) [L15] COND FALSE !(!(cond)) [L40] COND FALSE !(!(r >= d)) [L42] d = 2 * d [L43] p = 2 * p [L36] COND TRUE 1 [L15] COND FALSE !(!(cond)) [L15] COND FALSE !(!(cond)) [L15] COND FALSE !(!(cond)) [L40] COND TRUE !(r >= d) [L46] COND TRUE 1 [L15] COND FALSE !(!(cond)) [L15] COND FALSE !(!(cond)) [L50] COND FALSE !(!(p != 1)) [L52] d = d / 2 [L53] p = p / 2 [L54] COND TRUE r >= d [L55] r = r - d [L56] q = q + p [L46] COND TRUE 1 [L15] COND FALSE !(!(cond)) [L15] COND TRUE !(cond) [L17] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 146.9s, OverallIterations: 16, TraceHistogramMax: 4, AutomataDifference: 70.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 414 SDtfs, 1398 SDslu, 1177 SDs, 0 SdLazy, 2722 SolverSat, 512 SolverUnsat, 21 SolverUnknown, 0 SolverNotchecked, 50.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 495 GetRequests, 294 SyntacticMatches, 1 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 612 ImplicationChecksByTransitivity, 35.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 15 MinimizatonAttempts, 131 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 19.5s InterpolantComputationTime, 436 NumberOfCodeBlocks, 422 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 421 ConstructedInterpolants, 0 QuantifiedInterpolants, 216640 SizeOfPredicates, 127 NumberOfNonLiveVariables, 1494 ConjunctsInSsa, 411 ConjunctsInUnsatCore, 15 InterpolantComputations, 6 PerfectInterpolantSequences, 55/248 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...