/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 05:12:18,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 05:12:18,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 05:12:18,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-22 05:12:18,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 05:12:18,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 05:12:18,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 05:12:18,759 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 05:12:18,799 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 05:12:18,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 05:12:18,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 05:12:18,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 05:12:18,802 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 05:12:18,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 05:12:18,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 05:12:18,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 05:12:18,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 05:12:18,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 05:12:18,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 05:12:18,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 05:12:18,804 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 05:12:18,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 05:12:18,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 05:12:18,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 05:12:18,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 05:12:18,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:12:18,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 05:12:18,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 05:12:18,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 05:12:18,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 05:12:18,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 05:12:18,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 05:12:18,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 05:12:18,807 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/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 05:12:19,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 05:12:19,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 05:12:19,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 05:12:19,263 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 05:12:19,263 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 05:12:19,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c [2020-12-22 05:12:19,341 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7428c938/be6ee56e31584b1f8a67d31ea57fedff/FLAGb31dc8c87 [2020-12-22 05:12:20,077 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 05:12:20,078 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c [2020-12-22 05:12:20,086 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7428c938/be6ee56e31584b1f8a67d31ea57fedff/FLAGb31dc8c87 [2020-12-22 05:12:20,445 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7428c938/be6ee56e31584b1f8a67d31ea57fedff [2020-12-22 05:12:20,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 05:12:20,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 05:12:20,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 05:12:20,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 05:12:20,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 05:12:20,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:12:20" (1/1) ... [2020-12-22 05:12:20,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7665134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:12:20, skipping insertion in model container [2020-12-22 05:12:20,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:12:20" (1/1) ... [2020-12-22 05:12:20,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 05:12:20,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 05:12:20,698 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c[489,502] [2020-12-22 05:12:20,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:12:20,730 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 05:12:20,744 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c[489,502] [2020-12-22 05:12:20,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:12:20,772 INFO L208 MainTranslator]: Completed translation [2020-12-22 05:12:20,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:12:20 WrapperNode [2020-12-22 05:12:20,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 05:12:20,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 05:12:20,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 05:12:20,775 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 05:12:20,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:12:20" (1/1) ... [2020-12-22 05:12:20,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:12:20" (1/1) ... [2020-12-22 05:12:20,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 05:12:20,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 05:12:20,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 05:12:20,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 05:12:20,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:12:20" (1/1) ... [2020-12-22 05:12:20,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:12:20" (1/1) ... [2020-12-22 05:12:20,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:12:20" (1/1) ... [2020-12-22 05:12:20,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:12:20" (1/1) ... [2020-12-22 05:12:20,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:12:20" (1/1) ... [2020-12-22 05:12:20,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:12:20" (1/1) ... [2020-12-22 05:12:20,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:12:20" (1/1) ... [2020-12-22 05:12:20,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 05:12:20,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 05:12:20,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 05:12:20,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 05:12:20,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:12:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:12:20,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 05:12:20,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 05:12:20,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 05:12:20,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 05:12:21,485 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 05:12:21,486 INFO L299 CfgBuilder]: Removed 27 assume(true) statements. [2020-12-22 05:12:21,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:12:21 BoogieIcfgContainer [2020-12-22 05:12:21,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 05:12:21,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 05:12:21,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 05:12:21,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 05:12:21,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:12:20" (1/3) ... [2020-12-22 05:12:21,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e237629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:12:21, skipping insertion in model container [2020-12-22 05:12:21,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:12:20" (2/3) ... [2020-12-22 05:12:21,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e237629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:12:21, skipping insertion in model container [2020-12-22 05:12:21,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:12:21" (3/3) ... [2020-12-22 05:12:21,498 INFO L111 eAbstractionObserver]: Analyzing ICFG egcd-ll_valuebound2.c [2020-12-22 05:12:21,508 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 05:12:21,520 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-22 05:12:21,547 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-22 05:12:21,575 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 05:12:21,576 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 05:12:21,576 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 05:12:21,576 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 05:12:21,576 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 05:12:21,576 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 05:12:21,577 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 05:12:21,577 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 05:12:21,595 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-12-22 05:12:21,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 05:12:21,602 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:12:21,602 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:12:21,603 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]=== [2020-12-22 05:12:21,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:12:21,610 INFO L82 PathProgramCache]: Analyzing trace with hash -144177098, now seen corresponding path program 1 times [2020-12-22 05:12:21,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:12:21,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900714755] [2020-12-22 05:12:21,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:12:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:12:21,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:12:21,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900714755] [2020-12-22 05:12:21,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:12:21,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:12:21,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650015209] [2020-12-22 05:12:21,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 05:12:21,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:12:21,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 05:12:21,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 05:12:21,872 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2020-12-22 05:12:21,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:12:21,904 INFO L93 Difference]: Finished difference Result 85 states and 112 transitions. [2020-12-22 05:12:21,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 05:12:21,905 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-12-22 05:12:21,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:12:21,921 INFO L225 Difference]: With dead ends: 85 [2020-12-22 05:12:21,921 INFO L226 Difference]: Without dead ends: 40 [2020-12-22 05:12:21,928 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 05:12:21,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-12-22 05:12:21,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-12-22 05:12:21,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-12-22 05:12:21,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2020-12-22 05:12:21,980 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 13 [2020-12-22 05:12:21,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:12:21,981 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2020-12-22 05:12:21,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 05:12:21,981 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2020-12-22 05:12:21,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 05:12:21,982 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:12:21,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:12:21,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 05:12:21,987 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]=== [2020-12-22 05:12:21,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:12:21,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1281167042, now seen corresponding path program 1 times [2020-12-22 05:12:21,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:12:21,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286820542] [2020-12-22 05:12:21,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:12:22,046 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:12:22,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1637351681] [2020-12-22 05:12:22,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:12:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:12:22,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-22 05:12:22,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:12:22,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:12:22,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286820542] [2020-12-22 05:12:22,307 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:12:22,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637351681] [2020-12-22 05:12:22,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:12:22,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:12:22,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085442405] [2020-12-22 05:12:22,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:12:22,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:12:22,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:12:22,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:12:22,315 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 5 states. [2020-12-22 05:12:22,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:12:22,646 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2020-12-22 05:12:22,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:12:22,647 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-22 05:12:22,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:12:22,651 INFO L225 Difference]: With dead ends: 70 [2020-12-22 05:12:22,651 INFO L226 Difference]: Without dead ends: 66 [2020-12-22 05:12:22,653 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 05:12:22,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-12-22 05:12:22,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-12-22 05:12:22,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-12-22 05:12:22,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2020-12-22 05:12:22,684 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 13 [2020-12-22 05:12:22,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:12:22,685 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2020-12-22 05:12:22,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:12:22,686 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2020-12-22 05:12:22,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 05:12:22,687 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:12:22,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:12:22,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-22 05:12:22,898 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]=== [2020-12-22 05:12:22,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:12:22,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1454243009, now seen corresponding path program 1 times [2020-12-22 05:12:22,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:12:22,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110513475] [2020-12-22 05:12:22,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:12:22,941 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:12:22,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2005488338] [2020-12-22 05:12:22,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:12:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:12:23,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 32 conjunts are in the unsatisfiable core [2020-12-22 05:12:23,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:12:23,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:12:23,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110513475] [2020-12-22 05:12:23,549 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:12:23,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005488338] [2020-12-22 05:12:23,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:12:23,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 05:12:23,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439218196] [2020-12-22 05:12:23,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 05:12:23,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:12:23,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 05:12:23,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-12-22 05:12:23,552 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand 12 states. [2020-12-22 05:12:24,097 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2020-12-22 05:12:24,274 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 21 [2020-12-22 05:12:24,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:12:24,415 INFO L93 Difference]: Finished difference Result 98 states and 112 transitions. [2020-12-22 05:12:24,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 05:12:24,416 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-12-22 05:12:24,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:12:24,419 INFO L225 Difference]: With dead ends: 98 [2020-12-22 05:12:24,419 INFO L226 Difference]: Without dead ends: 96 [2020-12-22 05:12:24,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2020-12-22 05:12:24,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-12-22 05:12:24,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 70. [2020-12-22 05:12:24,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-12-22 05:12:24,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 84 transitions. [2020-12-22 05:12:24,436 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 84 transitions. Word has length 15 [2020-12-22 05:12:24,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:12:24,436 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 84 transitions. [2020-12-22 05:12:24,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 05:12:24,437 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 84 transitions. [2020-12-22 05:12:24,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 05:12:24,438 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:12:24,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:12:24,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:12:24,652 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]=== [2020-12-22 05:12:24,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:12:24,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1663317220, now seen corresponding path program 1 times [2020-12-22 05:12:24,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:12:24,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212401391] [2020-12-22 05:12:24,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:12:24,673 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:12:24,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [229756800] [2020-12-22 05:12:24,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:12:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:12:24,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 32 conjunts are in the unsatisfiable core [2020-12-22 05:12:24,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:12:25,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:12:25,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212401391] [2020-12-22 05:12:25,037 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:12:25,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229756800] [2020-12-22 05:12:25,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:12:25,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 05:12:25,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968398289] [2020-12-22 05:12:25,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 05:12:25,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:12:25,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 05:12:25,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-12-22 05:12:25,039 INFO L87 Difference]: Start difference. First operand 70 states and 84 transitions. Second operand 12 states. [2020-12-22 05:12:25,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:12:25,562 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2020-12-22 05:12:25,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 05:12:25,564 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 17 [2020-12-22 05:12:25,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:12:25,569 INFO L225 Difference]: With dead ends: 84 [2020-12-22 05:12:25,569 INFO L226 Difference]: Without dead ends: 76 [2020-12-22 05:12:25,570 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2020-12-22 05:12:25,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-12-22 05:12:25,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 68. [2020-12-22 05:12:25,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-12-22 05:12:25,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2020-12-22 05:12:25,581 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 17 [2020-12-22 05:12:25,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:12:25,581 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2020-12-22 05:12:25,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 05:12:25,582 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2020-12-22 05:12:25,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-22 05:12:25,582 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:12:25,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:12:25,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:12:25,796 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]=== [2020-12-22 05:12:25,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:12:25,798 INFO L82 PathProgramCache]: Analyzing trace with hash 850548497, now seen corresponding path program 1 times [2020-12-22 05:12:25,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:12:25,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474966073] [2020-12-22 05:12:25,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:12:25,813 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:12:25,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1123105058] [2020-12-22 05:12:25,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:12:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:12:25,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 05:12:25,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:12:25,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:12:25,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474966073] [2020-12-22 05:12:25,897 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:12:25,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123105058] [2020-12-22 05:12:25,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:12:25,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:12:25,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93301361] [2020-12-22 05:12:25,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:12:25,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:12:25,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:12:25,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:12:25,900 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand 4 states. [2020-12-22 05:12:25,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:12:25,950 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2020-12-22 05:12:25,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 05:12:25,951 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-12-22 05:12:25,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:12:25,952 INFO L225 Difference]: With dead ends: 68 [2020-12-22 05:12:25,952 INFO L226 Difference]: Without dead ends: 66 [2020-12-22 05:12:25,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:12:25,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-12-22 05:12:25,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-12-22 05:12:25,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-12-22 05:12:25,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2020-12-22 05:12:25,962 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 76 transitions. Word has length 20 [2020-12-22 05:12:25,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:12:25,963 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 76 transitions. [2020-12-22 05:12:25,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:12:25,963 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 76 transitions. [2020-12-22 05:12:25,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 05:12:25,964 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:12:25,964 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:12:26,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:12:26,178 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]=== [2020-12-22 05:12:26,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:12:26,180 INFO L82 PathProgramCache]: Analyzing trace with hash 598848193, now seen corresponding path program 1 times [2020-12-22 05:12:26,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:12:26,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048420776] [2020-12-22 05:12:26,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:12:26,194 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:12:26,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1710294832] [2020-12-22 05:12:26,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-12-22 05:12:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:12:26,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-22 05:12:26,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:12:26,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 05:12:26,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048420776] [2020-12-22 05:12:26,326 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:12:26,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710294832] [2020-12-22 05:12:26,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:12:26,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-12-22 05:12:26,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194030569] [2020-12-22 05:12:26,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:12:26,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:12:26,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:12:26,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:12:26,340 INFO L87 Difference]: Start difference. First operand 66 states and 76 transitions. Second operand 5 states. [2020-12-22 05:12:26,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:12:26,456 INFO L93 Difference]: Finished difference Result 88 states and 95 transitions. [2020-12-22 05:12:26,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:12:26,457 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-12-22 05:12:26,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:12:26,458 INFO L225 Difference]: With dead ends: 88 [2020-12-22 05:12:26,458 INFO L226 Difference]: Without dead ends: 84 [2020-12-22 05:12:26,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 05:12:26,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-12-22 05:12:26,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 72. [2020-12-22 05:12:26,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-12-22 05:12:26,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2020-12-22 05:12:26,469 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 21 [2020-12-22 05:12:26,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:12:26,469 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2020-12-22 05:12:26,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:12:26,470 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2020-12-22 05:12:26,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 05:12:26,470 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:12:26,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:12:26,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-22 05:12:26,684 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]=== [2020-12-22 05:12:26,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:12:26,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1333477300, now seen corresponding path program 1 times [2020-12-22 05:12:26,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:12:26,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14530948] [2020-12-22 05:12:26,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:12:26,700 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:12:26,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1063797221] [2020-12-22 05:12:26,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-12-22 05:12:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:12:26,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 05:12:26,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:12:26,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:12:26,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14530948] [2020-12-22 05:12:26,881 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:12:26,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063797221] [2020-12-22 05:12:26,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:12:26,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 05:12:26,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686441591] [2020-12-22 05:12:26,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 05:12:26,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:12:26,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 05:12:26,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:12:26,883 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand 8 states. [2020-12-22 05:12:27,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:12:27,049 INFO L93 Difference]: Finished difference Result 80 states and 90 transitions. [2020-12-22 05:12:27,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 05:12:27,050 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-12-22 05:12:27,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:12:27,051 INFO L225 Difference]: With dead ends: 80 [2020-12-22 05:12:27,051 INFO L226 Difference]: Without dead ends: 72 [2020-12-22 05:12:27,051 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-12-22 05:12:27,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-12-22 05:12:27,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2020-12-22 05:12:27,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-12-22 05:12:27,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 78 transitions. [2020-12-22 05:12:27,064 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 78 transitions. Word has length 22 [2020-12-22 05:12:27,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:12:27,065 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 78 transitions. [2020-12-22 05:12:27,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 05:12:27,065 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 78 transitions. [2020-12-22 05:12:27,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 05:12:27,066 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:12:27,066 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:12:27,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:12:27,281 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]=== [2020-12-22 05:12:27,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:12:27,282 INFO L82 PathProgramCache]: Analyzing trace with hash -89606074, now seen corresponding path program 1 times [2020-12-22 05:12:27,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:12:27,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544081892] [2020-12-22 05:12:27,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:12:27,298 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:12:27,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [247343199] [2020-12-22 05:12:27,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-12-22 05:12:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:12:27,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 40 conjunts are in the unsatisfiable core [2020-12-22 05:12:27,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:12:27,640 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:12:27,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544081892] [2020-12-22 05:12:27,641 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:12:27,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247343199] [2020-12-22 05:12:27,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:12:27,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-12-22 05:12:27,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140373527] [2020-12-22 05:12:27,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 05:12:27,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:12:27,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 05:12:27,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-12-22 05:12:27,643 INFO L87 Difference]: Start difference. First operand 70 states and 78 transitions. Second operand 11 states. [2020-12-22 05:12:28,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:12:28,236 INFO L93 Difference]: Finished difference Result 105 states and 115 transitions. [2020-12-22 05:12:28,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 05:12:28,237 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 23 [2020-12-22 05:12:28,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:12:28,241 INFO L225 Difference]: With dead ends: 105 [2020-12-22 05:12:28,241 INFO L226 Difference]: Without dead ends: 103 [2020-12-22 05:12:28,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2020-12-22 05:12:28,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-12-22 05:12:28,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 74. [2020-12-22 05:12:28,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-12-22 05:12:28,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 82 transitions. [2020-12-22 05:12:28,273 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 82 transitions. Word has length 23 [2020-12-22 05:12:28,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:12:28,274 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 82 transitions. [2020-12-22 05:12:28,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 05:12:28,278 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 82 transitions. [2020-12-22 05:12:28,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 05:12:28,279 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:12:28,279 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:12:28,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:12:28,493 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]=== [2020-12-22 05:12:28,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:12:28,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1021281049, now seen corresponding path program 1 times [2020-12-22 05:12:28,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:12:28,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995558389] [2020-12-22 05:12:28,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:12:28,509 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:12:28,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [687689000] [2020-12-22 05:12:28,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-12-22 05:12:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:12:28,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 43 conjunts are in the unsatisfiable core [2020-12-22 05:12:28,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:12:28,880 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:12:28,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995558389] [2020-12-22 05:12:28,881 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:12:28,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687689000] [2020-12-22 05:12:28,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:12:28,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-12-22 05:12:28,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658662914] [2020-12-22 05:12:28,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 05:12:28,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:12:28,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 05:12:28,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-12-22 05:12:28,883 INFO L87 Difference]: Start difference. First operand 74 states and 82 transitions. Second operand 12 states. [2020-12-22 05:12:29,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:12:29,297 INFO L93 Difference]: Finished difference Result 116 states and 128 transitions. [2020-12-22 05:12:29,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 05:12:29,297 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 25 [2020-12-22 05:12:29,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:12:29,298 INFO L225 Difference]: With dead ends: 116 [2020-12-22 05:12:29,298 INFO L226 Difference]: Without dead ends: 104 [2020-12-22 05:12:29,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2020-12-22 05:12:29,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-12-22 05:12:29,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 96. [2020-12-22 05:12:29,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-12-22 05:12:29,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 109 transitions. [2020-12-22 05:12:29,313 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 109 transitions. Word has length 25 [2020-12-22 05:12:29,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:12:29,313 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 109 transitions. [2020-12-22 05:12:29,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 05:12:29,313 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 109 transitions. [2020-12-22 05:12:29,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-22 05:12:29,314 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:12:29,314 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:12:29,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-12-22 05:12:29,527 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]=== [2020-12-22 05:12:29,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:12:29,528 INFO L82 PathProgramCache]: Analyzing trace with hash 477321350, now seen corresponding path program 1 times [2020-12-22 05:12:29,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:12:29,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809228046] [2020-12-22 05:12:29,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:12:29,560 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:12:29,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [874432278] [2020-12-22 05:12:29,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-12-22 05:12:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:12:29,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-22 05:12:29,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:12:29,729 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:12:29,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809228046] [2020-12-22 05:12:29,729 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:12:29,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874432278] [2020-12-22 05:12:29,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:12:29,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-22 05:12:29,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721779784] [2020-12-22 05:12:29,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 05:12:29,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:12:29,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 05:12:29,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-22 05:12:29,731 INFO L87 Difference]: Start difference. First operand 96 states and 109 transitions. Second operand 7 states. [2020-12-22 05:12:29,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:12:29,884 INFO L93 Difference]: Finished difference Result 152 states and 167 transitions. [2020-12-22 05:12:29,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 05:12:29,885 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2020-12-22 05:12:29,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:12:29,886 INFO L225 Difference]: With dead ends: 152 [2020-12-22 05:12:29,886 INFO L226 Difference]: Without dead ends: 108 [2020-12-22 05:12:29,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-12-22 05:12:29,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-12-22 05:12:29,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 90. [2020-12-22 05:12:29,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-12-22 05:12:29,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 101 transitions. [2020-12-22 05:12:29,899 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 101 transitions. Word has length 29 [2020-12-22 05:12:29,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:12:29,899 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 101 transitions. [2020-12-22 05:12:29,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 05:12:29,899 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 101 transitions. [2020-12-22 05:12:29,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-22 05:12:29,900 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:12:29,900 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:12:30,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:12:30,114 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]=== [2020-12-22 05:12:30,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:12:30,116 INFO L82 PathProgramCache]: Analyzing trace with hash 219215494, now seen corresponding path program 2 times [2020-12-22 05:12:30,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:12:30,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43647034] [2020-12-22 05:12:30,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:12:30,127 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:12:30,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2093544937] [2020-12-22 05:12:30,127 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/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 [2020-12-22 05:12:30,181 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 05:12:30,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:12:30,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-22 05:12:30,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:12:30,284 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:12:30,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43647034] [2020-12-22 05:12:30,284 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:12:30,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093544937] [2020-12-22 05:12:30,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:12:30,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-22 05:12:30,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783395661] [2020-12-22 05:12:30,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 05:12:30,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:12:30,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 05:12:30,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-22 05:12:30,286 INFO L87 Difference]: Start difference. First operand 90 states and 101 transitions. Second operand 7 states. [2020-12-22 05:12:30,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:12:30,433 INFO L93 Difference]: Finished difference Result 122 states and 132 transitions. [2020-12-22 05:12:30,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 05:12:30,433 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2020-12-22 05:12:30,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:12:30,434 INFO L225 Difference]: With dead ends: 122 [2020-12-22 05:12:30,434 INFO L226 Difference]: Without dead ends: 84 [2020-12-22 05:12:30,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-12-22 05:12:30,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-12-22 05:12:30,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 78. [2020-12-22 05:12:30,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-12-22 05:12:30,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 83 transitions. [2020-12-22 05:12:30,445 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 83 transitions. Word has length 29 [2020-12-22 05:12:30,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:12:30,445 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 83 transitions. [2020-12-22 05:12:30,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 05:12:30,445 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 83 transitions. [2020-12-22 05:12:30,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 05:12:30,446 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:12:30,446 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:12:30,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:12:30,660 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]=== [2020-12-22 05:12:30,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:12:30,661 INFO L82 PathProgramCache]: Analyzing trace with hash 155590347, now seen corresponding path program 2 times [2020-12-22 05:12:30,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:12:30,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341275693] [2020-12-22 05:12:30,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:12:30,673 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:12:30,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [890394955] [2020-12-22 05:12:30,674 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/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 [2020-12-22 05:12:30,735 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 05:12:30,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:12:30,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 05:12:30,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:12:30,872 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:12:30,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341275693] [2020-12-22 05:12:30,873 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:12:30,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890394955] [2020-12-22 05:12:30,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:12:30,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 05:12:30,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091639504] [2020-12-22 05:12:30,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 05:12:30,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:12:30,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 05:12:30,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:12:30,875 INFO L87 Difference]: Start difference. First operand 78 states and 83 transitions. Second operand 8 states. [2020-12-22 05:12:31,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:12:31,085 INFO L93 Difference]: Finished difference Result 84 states and 88 transitions. [2020-12-22 05:12:31,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 05:12:31,085 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2020-12-22 05:12:31,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:12:31,086 INFO L225 Difference]: With dead ends: 84 [2020-12-22 05:12:31,086 INFO L226 Difference]: Without dead ends: 66 [2020-12-22 05:12:31,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-12-22 05:12:31,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-12-22 05:12:31,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-12-22 05:12:31,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-12-22 05:12:31,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2020-12-22 05:12:31,096 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 31 [2020-12-22 05:12:31,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:12:31,096 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2020-12-22 05:12:31,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 05:12:31,096 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2020-12-22 05:12:31,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 05:12:31,097 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:12:31,097 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:12:31,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-12-22 05:12:31,311 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]=== [2020-12-22 05:12:31,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:12:31,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1663177194, now seen corresponding path program 2 times [2020-12-22 05:12:31,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:12:31,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163936675] [2020-12-22 05:12:31,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:12:31,325 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:12:31,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2127282467] [2020-12-22 05:12:31,328 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/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 [2020-12-22 05:12:31,383 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 05:12:31,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:12:31,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-22 05:12:31,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:12:31,538 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:12:31,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163936675] [2020-12-22 05:12:31,538 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:12:31,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127282467] [2020-12-22 05:12:31,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:12:31,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 05:12:31,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016901159] [2020-12-22 05:12:31,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 05:12:31,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:12:31,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 05:12:31,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-12-22 05:12:31,540 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand 9 states. [2020-12-22 05:12:31,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:12:31,703 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2020-12-22 05:12:31,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 05:12:31,703 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2020-12-22 05:12:31,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:12:31,704 INFO L225 Difference]: With dead ends: 66 [2020-12-22 05:12:31,704 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 05:12:31,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-12-22 05:12:31,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 05:12:31,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 05:12:31,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 05:12:31,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 05:12:31,705 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2020-12-22 05:12:31,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:12:31,705 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 05:12:31,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 05:12:31,706 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 05:12:31,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 05:12:31,919 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-22 05:12:31,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 05:12:32,218 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-12-22 05:12:32,368 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2020-12-22 05:12:32,719 WARN L197 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2020-12-22 05:12:32,855 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2020-12-22 05:12:33,164 WARN L197 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2020-12-22 05:12:33,467 WARN L197 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2020-12-22 05:12:33,773 WARN L197 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2020-12-22 05:12:33,776 INFO L189 CegarLoopUtils]: For program point L35-2(lines 35 52) no Hoare annotation was computed. [2020-12-22 05:12:33,776 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 05:12:33,776 INFO L189 CegarLoopUtils]: For program point L11(lines 11 14) no Hoare annotation was computed. [2020-12-22 05:12:33,777 INFO L185 CegarLoopUtils]: At program point L11-2(lines 10 16) the Hoare annotation is: (let ((.cse7 (= ULTIMATE.start_main_~r~0 0)) (.cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse1 (= ULTIMATE.start_main_~p~0 1)) (.cse2 (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)))) (.cse3 (= ULTIMATE.start_main_~s~0 1)) (.cse8 (<= 1 ULTIMATE.start_main_~x~0)) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse6 (<= 1 ULTIMATE.start_main_~b~0)) (.cse9 (<= ULTIMATE.start_main_~y~0 2))) (or (and (<= (+ ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0) 2) .cse0 (< 0 ULTIMATE.start_main_~a~0) .cse1 .cse2 .cse3 .cse4 .cse5 (= (+ ULTIMATE.start_main_~r~0 1) 0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse6) (and (< 0 ULTIMATE.start_main_~b~0) .cse7 .cse0 (= (+ ULTIMATE.start_main_~q~0 1) 0) .cse1 .cse2 .cse3 .cse8 .cse5 .cse9 (= ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0))) (and (= ULTIMATE.start_main_~b~0 (+ (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~y~0))) (<= ULTIMATE.start_main_~a~0 2) .cse7 .cse0 .cse1 .cse2 .cse3 .cse8 .cse4 .cse5 .cse6 .cse9))) [2020-12-22 05:12:33,777 INFO L189 CegarLoopUtils]: For program point L11-3(lines 11 14) no Hoare annotation was computed. [2020-12-22 05:12:33,777 INFO L185 CegarLoopUtils]: At program point L11-5(lines 10 16) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~r~0 0)) (.cse7 (<= ULTIMATE.start_main_~y~0 2)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (= ULTIMATE.start_main_~p~0 1)) (.cse3 (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)))) (.cse4 (= ULTIMATE.start_main_~s~0 1)) (.cse5 (<= 1 ULTIMATE.start_main_~x~0)) (.cse8 (= ULTIMATE.start_main_~q~0 0)) (.cse6 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse9 (<= 1 ULTIMATE.start_main_~b~0))) (or (and (< 0 ULTIMATE.start_main_~b~0) .cse0 .cse1 (= (+ ULTIMATE.start_main_~q~0 1) 0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (= ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0))) (and (= ULTIMATE.start_main_~b~0 (+ (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~y~0))) (<= ULTIMATE.start_main_~a~0 2) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse8 .cse6 .cse9 .cse7) (and (<= (+ ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0) 2) (<= ULTIMATE.start_main_~x~0 2) .cse1 (< 0 ULTIMATE.start_main_~a~0) .cse2 .cse3 .cse4 .cse5 .cse8 .cse6 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse9))) [2020-12-22 05:12:33,777 INFO L189 CegarLoopUtils]: For program point L11-6(lines 11 14) no Hoare annotation was computed. [2020-12-22 05:12:33,777 INFO L185 CegarLoopUtils]: At program point L11-8(lines 40 41) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~r~0 0)) (.cse7 (<= ULTIMATE.start_main_~y~0 2)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (= ULTIMATE.start_main_~p~0 1)) (.cse3 (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)))) (.cse4 (= ULTIMATE.start_main_~s~0 1)) (.cse5 (<= 1 ULTIMATE.start_main_~x~0)) (.cse8 (= ULTIMATE.start_main_~q~0 0)) (.cse6 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse9 (<= 1 ULTIMATE.start_main_~b~0))) (or (and (< 0 ULTIMATE.start_main_~b~0) .cse0 .cse1 (= (+ ULTIMATE.start_main_~q~0 1) 0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (= ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0))) (and (= ULTIMATE.start_main_~b~0 (+ (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~y~0))) (<= ULTIMATE.start_main_~a~0 2) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse8 .cse6 .cse9 .cse7) (and (<= (+ ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0) 2) (<= ULTIMATE.start_main_~x~0 2) .cse1 (< 0 ULTIMATE.start_main_~a~0) .cse2 .cse3 .cse4 .cse5 .cse8 .cse6 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse9))) [2020-12-22 05:12:33,778 INFO L189 CegarLoopUtils]: For program point L11-9(lines 11 14) no Hoare annotation was computed. [2020-12-22 05:12:33,778 INFO L185 CegarLoopUtils]: At program point L11-11(lines 10 16) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~y~0)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (= ULTIMATE.start_main_~p~0 1)) (.cse2 (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)))) (.cse4 (= ULTIMATE.start_main_~s~0 1)) (.cse5 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~a~0)) (.cse6 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and .cse0 (<= ULTIMATE.start_main_~x~0 2) .cse1 .cse2 .cse3 .cse4 (<= 1 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) .cse5 .cse6 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (and .cse0 (= ULTIMATE.start_main_~r~0 0) .cse1 (= (+ ULTIMATE.start_main_~q~0 1) 0) .cse3 .cse2 .cse4 .cse5 .cse6 (<= ULTIMATE.start_main_~y~0 2) (= ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0))))) [2020-12-22 05:12:33,778 INFO L189 CegarLoopUtils]: For program point L11-12(lines 11 14) no Hoare annotation was computed. [2020-12-22 05:12:33,778 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 05:12:33,778 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 05:12:33,778 INFO L185 CegarLoopUtils]: At program point L11-14(lines 10 16) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~y~0)) (.cse1 (= ULTIMATE.start_main_~p~0 1)) (.cse2 (= ULTIMATE.start_main_~s~0 1)) (.cse3 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse4 (<= ULTIMATE.start_main_~y~0 2))) (or (and .cse0 (= ULTIMATE.start_main_~r~0 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ ULTIMATE.start_main_~q~0 1) 0) .cse1 (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0))) .cse2 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~a~0) .cse3 .cse4 (= ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0))) (and .cse0 (<= ULTIMATE.start_main_~x~0 2) .cse1 .cse2 (<= 1 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) .cse3 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse4))) [2020-12-22 05:12:33,778 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 05:12:33,779 INFO L189 CegarLoopUtils]: For program point L11-15(lines 11 14) no Hoare annotation was computed. [2020-12-22 05:12:33,779 INFO L185 CegarLoopUtils]: At program point L11-17(lines 10 16) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~s~0 1)) (.cse1 (<= 1 ULTIMATE.start_main_~x~0)) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse3 (<= ULTIMATE.start_main_~y~0 2))) (or (and (<= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 2) .cse0 .cse1 (= ULTIMATE.start_main_~q~0 0) .cse2 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse3) (and (not (= ULTIMATE.start_main_~b~0 0)) .cse0 (= (+ ULTIMATE.start_main_~q~0 1) 0) (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0))) (<= 0 ULTIMATE.start_main_~b~0) .cse1 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~a~0) .cse2 .cse3 (= ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0))))) [2020-12-22 05:12:33,779 INFO L189 CegarLoopUtils]: For program point L11-18(lines 11 14) no Hoare annotation was computed. [2020-12-22 05:12:33,779 INFO L192 CegarLoopUtils]: At program point L11-20(lines 10 16) the Hoare annotation is: true [2020-12-22 05:12:33,779 INFO L189 CegarLoopUtils]: For program point L12(lines 12 13) no Hoare annotation was computed. [2020-12-22 05:12:33,779 INFO L189 CegarLoopUtils]: For program point L12-1(lines 12 13) no Hoare annotation was computed. [2020-12-22 05:12:33,779 INFO L189 CegarLoopUtils]: For program point L12-2(lines 12 13) no Hoare annotation was computed. [2020-12-22 05:12:33,779 INFO L189 CegarLoopUtils]: For program point L12-3(lines 12 13) no Hoare annotation was computed. [2020-12-22 05:12:33,779 INFO L189 CegarLoopUtils]: For program point L12-4(lines 12 13) no Hoare annotation was computed. [2020-12-22 05:12:33,779 INFO L189 CegarLoopUtils]: For program point L12-5(lines 12 13) no Hoare annotation was computed. [2020-12-22 05:12:33,779 INFO L189 CegarLoopUtils]: For program point L12-6(lines 12 13) no Hoare annotation was computed. [2020-12-22 05:12:33,780 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 05:12:33,780 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 05:12:33,780 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 05:12:33,780 INFO L189 CegarLoopUtils]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-12-22 05:12:33,780 INFO L189 CegarLoopUtils]: For program point L7-1(lines 7 9) no Hoare annotation was computed. [2020-12-22 05:12:33,780 INFO L189 CegarLoopUtils]: For program point L7-2(lines 7 9) no Hoare annotation was computed. [2020-12-22 05:12:33,780 INFO L189 CegarLoopUtils]: For program point L7-3(lines 7 9) no Hoare annotation was computed. [2020-12-22 05:12:33,780 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 05:12:33,780 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 05:12:33,780 INFO L189 CegarLoopUtils]: For program point L8(line 8) no Hoare annotation was computed. [2020-12-22 05:12:33,781 INFO L189 CegarLoopUtils]: For program point L8-2(line 8) no Hoare annotation was computed. [2020-12-22 05:12:33,781 INFO L189 CegarLoopUtils]: For program point L8-4(line 8) no Hoare annotation was computed. [2020-12-22 05:12:33,781 INFO L189 CegarLoopUtils]: For program point L8-6(line 8) no Hoare annotation was computed. [2020-12-22 05:12:33,781 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 05:12:33,781 INFO L192 CegarLoopUtils]: At program point L58(lines 18 59) the Hoare annotation is: true [2020-12-22 05:12:33,781 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 05:12:33,781 INFO L189 CegarLoopUtils]: For program point L43(lines 43 51) no Hoare annotation was computed. [2020-12-22 05:12:33,781 INFO L185 CegarLoopUtils]: At program point L43-2(lines 35 52) the Hoare annotation is: (let ((.cse5 (= ULTIMATE.start_main_~q~0 0)) (.cse7 (<= 1 ULTIMATE.start_main_~b~0)) (.cse0 (= ULTIMATE.start_main_~r~0 0)) (.cse9 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)))) (.cse1 (= ULTIMATE.start_main_~p~0 1)) (.cse3 (= ULTIMATE.start_main_~s~0 1)) (.cse4 (<= 1 ULTIMATE.start_main_~x~0)) (.cse6 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse8 (<= ULTIMATE.start_main_~y~0 2))) (or (and (= ULTIMATE.start_main_~b~0 (+ (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~y~0))) (<= ULTIMATE.start_main_~a~0 2) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and (<= (+ ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0) 2) .cse9 (< 0 ULTIMATE.start_main_~a~0) .cse1 .cse2 .cse3 .cse5 .cse6 (= (+ ULTIMATE.start_main_~r~0 1) 0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse7) (and (< 0 ULTIMATE.start_main_~b~0) .cse0 .cse9 (= (+ ULTIMATE.start_main_~q~0 1) 0) .cse2 .cse1 .cse3 .cse4 .cse6 .cse8 (= ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0))))) [2020-12-22 05:12:33,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 05:12:33 BoogieIcfgContainer [2020-12-22 05:12:33,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 05:12:33,817 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 05:12:33,818 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 05:12:33,818 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 05:12:33,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:12:21" (3/4) ... [2020-12-22 05:12:33,822 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 05:12:33,835 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2020-12-22 05:12:33,836 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 05:12:33,836 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:12:33,836 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:12:33,905 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/nla-digbench-scaling/egcd-ll_valuebound2.c-witness.graphml [2020-12-22 05:12:33,906 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 05:12:33,907 INFO L168 Benchmark]: Toolchain (without parser) took 13456.31 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 129.6 MB in the beginning and 116.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 45.2 MB. Max. memory is 8.0 GB. [2020-12-22 05:12:33,907 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 153.1 MB. Free memory is still 128.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 05:12:33,907 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.08 ms. Allocated memory is still 153.1 MB. Free memory was 129.2 MB in the beginning and 119.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-22 05:12:33,908 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.66 ms. Allocated memory is still 153.1 MB. Free memory was 119.3 MB in the beginning and 117.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 05:12:33,908 INFO L168 Benchmark]: Boogie Preprocessor took 30.19 ms. Allocated memory is still 153.1 MB. Free memory was 117.6 MB in the beginning and 116.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 05:12:33,909 INFO L168 Benchmark]: RCFGBuilder took 637.30 ms. Allocated memory is still 153.1 MB. Free memory was 116.4 MB in the beginning and 132.2 MB in the end (delta: -15.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 8.0 GB. [2020-12-22 05:12:33,909 INFO L168 Benchmark]: TraceAbstraction took 12327.02 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 132.2 MB in the beginning and 120.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 103.5 MB. Max. memory is 8.0 GB. [2020-12-22 05:12:33,909 INFO L168 Benchmark]: Witness Printer took 88.25 ms. Allocated memory is still 184.5 MB. Free memory was 120.5 MB in the beginning and 116.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-12-22 05:12:33,912 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 153.1 MB. Free memory is still 128.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 321.08 ms. Allocated memory is still 153.1 MB. Free memory was 129.2 MB in the beginning and 119.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 44.66 ms. Allocated memory is still 153.1 MB. Free memory was 119.3 MB in the beginning and 117.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.19 ms. Allocated memory is still 153.1 MB. Free memory was 117.6 MB in the beginning and 116.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 637.30 ms. Allocated memory is still 153.1 MB. Free memory was 116.4 MB in the beginning and 132.2 MB in the end (delta: -15.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 12327.02 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 132.2 MB in the beginning and 120.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 103.5 MB. Max. memory is 8.0 GB. * Witness Printer took 88.25 ms. Allocated memory is still 184.5 MB. Free memory was 120.5 MB in the beginning and 116.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (((((((1 <= y && x <= 2) && s == 1) && 1 <= x) && q == 0) && cond == 1) && b == y) && y <= 2) || (((((((((!(b == 0) && s == 1) && q + 1 == 0) && a == p * x + r * y) && 0 <= b) && 1 <= x) && b == a) && cond == 1) && y <= 2) && y == b + x) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: ((((((((((1 <= y && x <= 2) && 1 == cond) && a == p * x + r * y) && p == 1) && s == 1) && 1 <= x) && q == 0) && b == a) && cond == 1) && b == y) || ((((((((((1 <= y && r == 0) && 1 == cond) && q + 1 == 0) && p == 1) && a == p * x + r * y) && s == 1) && b == a) && cond == 1) && y <= 2) && y == b + x) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (((((((((((0 < b && r == 0) && 1 == cond) && q + 1 == 0) && p == 1) && a == p * x + r * y) && s == 1) && 1 <= x) && cond == 1) && y <= 2) && y == b + x) || (((((((((((b == q * x + s * y && a <= 2) && r == 0) && 1 == cond) && p == 1) && a == p * x + r * y) && s == 1) && 1 <= x) && q == 0) && cond == 1) && 1 <= b) && y <= 2)) || (((((((((((a + b <= 2 && x <= 2) && 1 == cond) && 0 < a) && p == 1) && a == p * x + r * y) && s == 1) && 1 <= x) && q == 0) && cond == 1) && b == y) && 1 <= b) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: ((((((((((1 <= y && r == 0) && 1 == cond) && q + 1 == 0) && p == 1) && a == p * x + r * y) && s == 1) && b == a) && cond == 1) && y <= 2) && y == b + x) || ((((((((1 <= y && x <= 2) && p == 1) && s == 1) && 1 <= x) && q == 0) && cond == 1) && b == y) && y <= 2) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((((((0 < b && r == 0) && 1 == cond) && q + 1 == 0) && p == 1) && a == p * x + r * y) && s == 1) && 1 <= x) && cond == 1) && y <= 2) && y == b + x) || (((((((((((b == q * x + s * y && a <= 2) && r == 0) && 1 == cond) && p == 1) && a == p * x + r * y) && s == 1) && 1 <= x) && q == 0) && cond == 1) && 1 <= b) && y <= 2)) || (((((((((((a + b <= 2 && x <= 2) && 1 == cond) && 0 < a) && p == 1) && a == p * x + r * y) && s == 1) && 1 <= x) && q == 0) && cond == 1) && b == y) && 1 <= b) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (((((((((((a + b <= 2 && 1 == cond) && 0 < a) && p == 1) && a == p * x + r * y) && s == 1) && q == 0) && cond == 1) && r + 1 == 0) && b == y) && 1 <= b) || ((((((((((0 < b && r == 0) && 1 == cond) && q + 1 == 0) && p == 1) && a == p * x + r * y) && s == 1) && 1 <= x) && cond == 1) && y <= 2) && y == b + x)) || (((((((((((b == q * x + s * y && a <= 2) && r == 0) && 1 == cond) && p == 1) && a == p * x + r * y) && s == 1) && 1 <= x) && q == 0) && cond == 1) && 1 <= b) && y <= 2) - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((((((((b == q * x + s * y && a <= 2) && r == 0) && p == 1) && a == p * x + r * y) && s == 1) && 1 <= x) && q == 0) && cond == 1) && 1 <= b) && y <= 2) || ((((((((((a + b <= 2 && 1 == cond) && 0 < a) && p == 1) && a == p * x + r * y) && s == 1) && q == 0) && cond == 1) && r + 1 == 0) && b == y) && 1 <= b)) || ((((((((((0 < b && r == 0) && 1 == cond) && q + 1 == 0) && a == p * x + r * y) && p == 1) && s == 1) && 1 <= x) && cond == 1) && y <= 2) && y == b + x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.3s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 376 SDtfs, 1538 SDslu, 695 SDs, 0 SdLazy, 962 SolverSat, 161 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 321 GetRequests, 191 SyntacticMatches, 1 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=9, 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, 13 MinimizatonAttempts, 121 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 29 NumberOfFragments, 779 HoareAnnotationTreeSize, 9 FomulaSimplifications, 1427 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 403 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 278 ConstructedInterpolants, 0 QuantifiedInterpolants, 57163 SizeOfPredicates, 110 NumberOfNonLiveVariables, 1273 ConjunctsInSsa, 258 ConjunctsInUnsatCore, 13 InterpolantComputations, 8 PerfectInterpolantSequences, 45/72 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...