/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/eca-rers2012/Problem10_label03.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 01:10:13,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 01:10:13,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 01:10:13,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-22 01:10:13,493 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 01:10:13,542 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 01:10:13,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 01:10:13,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 01:10:13,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 01:10:13,545 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 01:10:13,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 01:10:13,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 01:10:13,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 01:10:13,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 01:10:13,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 01:10:13,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 01:10:13,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 01:10:13,546 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 01:10:13,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 01:10:13,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 01:10:13,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 01:10:13,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 01:10:13,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 01:10:13,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 01:10:13,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 01:10:13,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 01:10:13,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 01:10:13,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 01:10:13,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 01:10:13,549 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 01:10:13,549 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 01:10:14,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 01:10:14,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 01:10:14,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 01:10:14,047 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 01:10:14,048 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 01:10:14,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label03.c [2020-12-22 01:10:14,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c11a24395/c590e2a111024f578d140d2cb94820da/FLAGaa16d08e4 [2020-12-22 01:10:14,887 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 01:10:14,891 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label03.c [2020-12-22 01:10:14,921 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c11a24395/c590e2a111024f578d140d2cb94820da/FLAGaa16d08e4 [2020-12-22 01:10:15,099 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c11a24395/c590e2a111024f578d140d2cb94820da [2020-12-22 01:10:15,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 01:10:15,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 01:10:15,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 01:10:15,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 01:10:15,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 01:10:15,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:10:15" (1/1) ... [2020-12-22 01:10:15,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ecbc31f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:15, skipping insertion in model container [2020-12-22 01:10:15,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:10:15" (1/1) ... [2020-12-22 01:10:15,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 01:10:15,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 01:10:15,454 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/eca-rers2012/Problem10_label03.c[4220,4233] [2020-12-22 01:10:15,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 01:10:15,705 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 01:10:15,745 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/eca-rers2012/Problem10_label03.c[4220,4233] [2020-12-22 01:10:15,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 01:10:15,877 INFO L208 MainTranslator]: Completed translation [2020-12-22 01:10:15,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:15 WrapperNode [2020-12-22 01:10:15,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 01:10:15,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 01:10:15,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 01:10:15,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 01:10:15,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:15" (1/1) ... [2020-12-22 01:10:15,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:15" (1/1) ... [2020-12-22 01:10:15,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 01:10:15,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 01:10:15,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 01:10:15,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 01:10:16,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:15" (1/1) ... [2020-12-22 01:10:16,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:15" (1/1) ... [2020-12-22 01:10:16,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:15" (1/1) ... [2020-12-22 01:10:16,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:15" (1/1) ... [2020-12-22 01:10:16,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:15" (1/1) ... [2020-12-22 01:10:16,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:15" (1/1) ... [2020-12-22 01:10:16,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:15" (1/1) ... [2020-12-22 01:10:16,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 01:10:16,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 01:10:16,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 01:10:16,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 01:10:16,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:15" (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 01:10:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 01:10:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 01:10:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 01:10:16,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 01:10:17,552 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 01:10:17,553 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-22 01:10:17,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:10:17 BoogieIcfgContainer [2020-12-22 01:10:17,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 01:10:17,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 01:10:17,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 01:10:17,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 01:10:17,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:10:15" (1/3) ... [2020-12-22 01:10:17,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7295df21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:10:17, skipping insertion in model container [2020-12-22 01:10:17,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:15" (2/3) ... [2020-12-22 01:10:17,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7295df21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:10:17, skipping insertion in model container [2020-12-22 01:10:17,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:10:17" (3/3) ... [2020-12-22 01:10:17,565 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label03.c [2020-12-22 01:10:17,571 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 01:10:17,577 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 01:10:17,596 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 01:10:17,625 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 01:10:17,626 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 01:10:17,626 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 01:10:17,626 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 01:10:17,626 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 01:10:17,626 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 01:10:17,626 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 01:10:17,627 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 01:10:17,646 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states. [2020-12-22 01:10:17,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-22 01:10:17,654 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:10:17,655 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:10:17,655 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:10:17,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:10:17,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1318097310, now seen corresponding path program 1 times [2020-12-22 01:10:17,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:10:17,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258755835] [2020-12-22 01:10:17,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:10:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:10:18,035 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 01:10:18,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258755835] [2020-12-22 01:10:18,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:10:18,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 01:10:18,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126321467] [2020-12-22 01:10:18,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:10:18,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:10:18,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:10:18,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:10:18,062 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 3 states. [2020-12-22 01:10:19,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:10:19,002 INFO L93 Difference]: Finished difference Result 552 states and 966 transitions. [2020-12-22 01:10:19,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:10:19,004 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2020-12-22 01:10:19,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:10:19,019 INFO L225 Difference]: With dead ends: 552 [2020-12-22 01:10:19,019 INFO L226 Difference]: Without dead ends: 282 [2020-12-22 01:10:19,024 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:10:19,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-12-22 01:10:19,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-12-22 01:10:19,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-12-22 01:10:19,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2020-12-22 01:10:19,089 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 36 [2020-12-22 01:10:19,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:10:19,090 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2020-12-22 01:10:19,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:10:19,090 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2020-12-22 01:10:19,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-12-22 01:10:19,095 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:10:19,095 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:10:19,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 01:10:19,096 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:10:19,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:10:19,097 INFO L82 PathProgramCache]: Analyzing trace with hash -77316021, now seen corresponding path program 1 times [2020-12-22 01:10:19,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:10:19,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265489814] [2020-12-22 01:10:19,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:10:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:10:19,375 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:10:19,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265489814] [2020-12-22 01:10:19,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:10:19,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 01:10:19,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391129684] [2020-12-22 01:10:19,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:10:19,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:10:19,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:10:19,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:10:19,384 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand 3 states. [2020-12-22 01:10:20,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:10:20,069 INFO L93 Difference]: Finished difference Result 701 states and 1076 transitions. [2020-12-22 01:10:20,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:10:20,070 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-12-22 01:10:20,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:10:20,075 INFO L225 Difference]: With dead ends: 701 [2020-12-22 01:10:20,075 INFO L226 Difference]: Without dead ends: 421 [2020-12-22 01:10:20,077 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:10:20,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-12-22 01:10:20,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2020-12-22 01:10:20,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-12-22 01:10:20,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 606 transitions. [2020-12-22 01:10:20,103 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 606 transitions. Word has length 105 [2020-12-22 01:10:20,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:10:20,104 INFO L481 AbstractCegarLoop]: Abstraction has 421 states and 606 transitions. [2020-12-22 01:10:20,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:10:20,104 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 606 transitions. [2020-12-22 01:10:20,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-22 01:10:20,109 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:10:20,109 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:10:20,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 01:10:20,110 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:10:20,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:10:20,111 INFO L82 PathProgramCache]: Analyzing trace with hash 2051277628, now seen corresponding path program 1 times [2020-12-22 01:10:20,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:10:20,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542071713] [2020-12-22 01:10:20,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:10:20,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:10:20,271 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:10:20,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542071713] [2020-12-22 01:10:20,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:10:20,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:10:20,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953262898] [2020-12-22 01:10:20,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:10:20,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:10:20,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:10:20,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:10:20,290 INFO L87 Difference]: Start difference. First operand 421 states and 606 transitions. Second operand 3 states. [2020-12-22 01:10:21,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:10:21,062 INFO L93 Difference]: Finished difference Result 562 states and 822 transitions. [2020-12-22 01:10:21,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:10:21,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-12-22 01:10:21,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:10:21,066 INFO L225 Difference]: With dead ends: 562 [2020-12-22 01:10:21,067 INFO L226 Difference]: Without dead ends: 560 [2020-12-22 01:10:21,067 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:10:21,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-12-22 01:10:21,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 421. [2020-12-22 01:10:21,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-12-22 01:10:21,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 606 transitions. [2020-12-22 01:10:21,090 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 606 transitions. Word has length 111 [2020-12-22 01:10:21,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:10:21,091 INFO L481 AbstractCegarLoop]: Abstraction has 421 states and 606 transitions. [2020-12-22 01:10:21,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:10:21,091 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 606 transitions. [2020-12-22 01:10:21,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-12-22 01:10:21,097 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:10:21,097 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:10:21,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 01:10:21,098 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:10:21,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:10:21,099 INFO L82 PathProgramCache]: Analyzing trace with hash -768128600, now seen corresponding path program 1 times [2020-12-22 01:10:21,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:10:21,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020356010] [2020-12-22 01:10:21,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:10:21,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:10:21,432 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:10:21,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020356010] [2020-12-22 01:10:21,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:10:21,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:10:21,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460845239] [2020-12-22 01:10:21,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:10:21,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:10:21,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:10:21,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:10:21,438 INFO L87 Difference]: Start difference. First operand 421 states and 606 transitions. Second operand 4 states. [2020-12-22 01:10:22,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:10:22,305 INFO L93 Difference]: Finished difference Result 848 states and 1218 transitions. [2020-12-22 01:10:22,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 01:10:22,308 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 130 [2020-12-22 01:10:22,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:10:22,317 INFO L225 Difference]: With dead ends: 848 [2020-12-22 01:10:22,318 INFO L226 Difference]: Without dead ends: 429 [2020-12-22 01:10:22,320 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 01:10:22,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-12-22 01:10:22,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 421. [2020-12-22 01:10:22,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-12-22 01:10:22,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 576 transitions. [2020-12-22 01:10:22,345 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 576 transitions. Word has length 130 [2020-12-22 01:10:22,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:10:22,346 INFO L481 AbstractCegarLoop]: Abstraction has 421 states and 576 transitions. [2020-12-22 01:10:22,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:10:22,346 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 576 transitions. [2020-12-22 01:10:22,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-12-22 01:10:22,355 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:10:22,356 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:10:22,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 01:10:22,356 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:10:22,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:10:22,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1824336484, now seen corresponding path program 1 times [2020-12-22 01:10:22,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:10:22,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036774340] [2020-12-22 01:10:22,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:10:22,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:10:22,506 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:10:22,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036774340] [2020-12-22 01:10:22,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:10:22,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:10:22,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36849721] [2020-12-22 01:10:22,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:10:22,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:10:22,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:10:22,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:10:22,510 INFO L87 Difference]: Start difference. First operand 421 states and 576 transitions. Second operand 3 states. [2020-12-22 01:10:23,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:10:23,207 INFO L93 Difference]: Finished difference Result 979 states and 1435 transitions. [2020-12-22 01:10:23,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:10:23,210 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2020-12-22 01:10:23,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:10:23,217 INFO L225 Difference]: With dead ends: 979 [2020-12-22 01:10:23,218 INFO L226 Difference]: Without dead ends: 699 [2020-12-22 01:10:23,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:10:23,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-12-22 01:10:23,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 560. [2020-12-22 01:10:23,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-12-22 01:10:23,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 725 transitions. [2020-12-22 01:10:23,237 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 725 transitions. Word has length 180 [2020-12-22 01:10:23,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:10:23,239 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 725 transitions. [2020-12-22 01:10:23,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:10:23,240 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 725 transitions. [2020-12-22 01:10:23,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-12-22 01:10:23,254 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:10:23,255 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:10:23,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 01:10:23,255 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:10:23,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:10:23,260 INFO L82 PathProgramCache]: Analyzing trace with hash 4868138, now seen corresponding path program 1 times [2020-12-22 01:10:23,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:10:23,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586167140] [2020-12-22 01:10:23,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:10:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:10:23,705 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:10:23,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586167140] [2020-12-22 01:10:23,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:10:23,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 01:10:23,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199394574] [2020-12-22 01:10:23,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 01:10:23,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:10:23,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 01:10:23,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:10:23,712 INFO L87 Difference]: Start difference. First operand 560 states and 725 transitions. Second operand 7 states. [2020-12-22 01:10:24,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:10:24,400 INFO L93 Difference]: Finished difference Result 1034 states and 1359 transitions. [2020-12-22 01:10:24,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 01:10:24,401 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 189 [2020-12-22 01:10:24,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:10:24,404 INFO L225 Difference]: With dead ends: 1034 [2020-12-22 01:10:24,405 INFO L226 Difference]: Without dead ends: 560 [2020-12-22 01:10:24,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:10:24,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-12-22 01:10:24,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2020-12-22 01:10:24,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-12-22 01:10:24,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 722 transitions. [2020-12-22 01:10:24,423 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 722 transitions. Word has length 189 [2020-12-22 01:10:24,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:10:24,424 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 722 transitions. [2020-12-22 01:10:24,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 01:10:24,424 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 722 transitions. [2020-12-22 01:10:24,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-12-22 01:10:24,431 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:10:24,432 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:10:24,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 01:10:24,432 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:10:24,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:10:24,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1399677776, now seen corresponding path program 1 times [2020-12-22 01:10:24,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:10:24,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022396544] [2020-12-22 01:10:24,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:10:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:10:24,668 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:10:24,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022396544] [2020-12-22 01:10:24,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:10:24,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:10:24,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979440770] [2020-12-22 01:10:24,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:10:24,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:10:24,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:10:24,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:10:24,674 INFO L87 Difference]: Start difference. First operand 560 states and 722 transitions. Second operand 3 states. [2020-12-22 01:10:25,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:10:25,371 INFO L93 Difference]: Finished difference Result 1257 states and 1726 transitions. [2020-12-22 01:10:25,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:10:25,372 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2020-12-22 01:10:25,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:10:25,377 INFO L225 Difference]: With dead ends: 1257 [2020-12-22 01:10:25,377 INFO L226 Difference]: Without dead ends: 838 [2020-12-22 01:10:25,378 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:10:25,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-12-22 01:10:25,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2020-12-22 01:10:25,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-12-22 01:10:25,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1071 transitions. [2020-12-22 01:10:25,400 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1071 transitions. Word has length 225 [2020-12-22 01:10:25,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:10:25,401 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1071 transitions. [2020-12-22 01:10:25,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:10:25,401 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1071 transitions. [2020-12-22 01:10:25,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-12-22 01:10:25,405 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:10:25,405 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:10:25,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 01:10:25,406 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:10:25,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:10:25,406 INFO L82 PathProgramCache]: Analyzing trace with hash 2025877756, now seen corresponding path program 1 times [2020-12-22 01:10:25,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:10:25,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135719954] [2020-12-22 01:10:25,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:10:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:10:25,605 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-12-22 01:10:25,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135719954] [2020-12-22 01:10:25,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:10:25,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 01:10:25,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99377381] [2020-12-22 01:10:25,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:10:25,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:10:25,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:10:25,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:10:25,608 INFO L87 Difference]: Start difference. First operand 838 states and 1071 transitions. Second operand 3 states. [2020-12-22 01:10:26,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:10:26,340 INFO L93 Difference]: Finished difference Result 1813 states and 2424 transitions. [2020-12-22 01:10:26,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:10:26,341 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2020-12-22 01:10:26,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:10:26,347 INFO L225 Difference]: With dead ends: 1813 [2020-12-22 01:10:26,347 INFO L226 Difference]: Without dead ends: 1116 [2020-12-22 01:10:26,348 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:10:26,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-12-22 01:10:26,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 977. [2020-12-22 01:10:26,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2020-12-22 01:10:26,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1229 transitions. [2020-12-22 01:10:26,374 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1229 transitions. Word has length 244 [2020-12-22 01:10:26,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:10:26,375 INFO L481 AbstractCegarLoop]: Abstraction has 977 states and 1229 transitions. [2020-12-22 01:10:26,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:10:26,375 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1229 transitions. [2020-12-22 01:10:26,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-12-22 01:10:26,379 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:10:26,380 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:10:26,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 01:10:26,380 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:10:26,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:10:26,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1511586633, now seen corresponding path program 1 times [2020-12-22 01:10:26,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:10:26,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767926738] [2020-12-22 01:10:26,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:10:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:10:26,891 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 82 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:10:26,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767926738] [2020-12-22 01:10:26,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266457321] [2020-12-22 01:10:26,892 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 01:10:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:10:27,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 01:10:27,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:10:27,692 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-12-22 01:10:27,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:10:27,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2020-12-22 01:10:27,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864432256] [2020-12-22 01:10:27,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:10:27,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:10:27,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:10:27,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:10:27,696 INFO L87 Difference]: Start difference. First operand 977 states and 1229 transitions. Second operand 3 states. [2020-12-22 01:10:28,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:10:28,387 INFO L93 Difference]: Finished difference Result 2091 states and 2645 transitions. [2020-12-22 01:10:28,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:10:28,388 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 268 [2020-12-22 01:10:28,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:10:28,395 INFO L225 Difference]: With dead ends: 2091 [2020-12-22 01:10:28,396 INFO L226 Difference]: Without dead ends: 1255 [2020-12-22 01:10:28,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:10:28,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-12-22 01:10:28,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2020-12-22 01:10:28,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-12-22 01:10:28,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1461 transitions. [2020-12-22 01:10:28,434 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1461 transitions. Word has length 268 [2020-12-22 01:10:28,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:10:28,435 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1461 transitions. [2020-12-22 01:10:28,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:10:28,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1461 transitions. [2020-12-22 01:10:28,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-12-22 01:10:28,442 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:10:28,443 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:10:28,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-12-22 01:10:28,659 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:10:28,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:10:28,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1986888687, now seen corresponding path program 1 times [2020-12-22 01:10:28,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:10:28,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325724222] [2020-12-22 01:10:28,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:10:28,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:10:28,879 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-12-22 01:10:28,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325724222] [2020-12-22 01:10:28,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:10:28,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:10:28,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855692696] [2020-12-22 01:10:28,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:10:28,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:10:28,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:10:28,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:10:28,882 INFO L87 Difference]: Start difference. First operand 1255 states and 1461 transitions. Second operand 3 states. [2020-12-22 01:10:29,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:10:29,551 INFO L93 Difference]: Finished difference Result 2647 states and 3154 transitions. [2020-12-22 01:10:29,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:10:29,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 298 [2020-12-22 01:10:29,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:10:29,560 INFO L225 Difference]: With dead ends: 2647 [2020-12-22 01:10:29,560 INFO L226 Difference]: Without dead ends: 1533 [2020-12-22 01:10:29,565 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:10:29,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2020-12-22 01:10:29,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1394. [2020-12-22 01:10:29,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1394 states. [2020-12-22 01:10:29,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1615 transitions. [2020-12-22 01:10:29,599 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1615 transitions. Word has length 298 [2020-12-22 01:10:29,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:10:29,600 INFO L481 AbstractCegarLoop]: Abstraction has 1394 states and 1615 transitions. [2020-12-22 01:10:29,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:10:29,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1615 transitions. [2020-12-22 01:10:29,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-12-22 01:10:29,606 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:10:29,606 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:10:29,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 01:10:29,607 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:10:29,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:10:29,608 INFO L82 PathProgramCache]: Analyzing trace with hash -191746922, now seen corresponding path program 1 times [2020-12-22 01:10:29,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:10:29,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443841244] [2020-12-22 01:10:29,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:10:29,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:10:29,840 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2020-12-22 01:10:29,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443841244] [2020-12-22 01:10:29,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:10:29,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:10:29,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934107547] [2020-12-22 01:10:29,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:10:29,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:10:29,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:10:29,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:10:29,844 INFO L87 Difference]: Start difference. First operand 1394 states and 1615 transitions. Second operand 3 states. [2020-12-22 01:10:30,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:10:30,536 INFO L93 Difference]: Finished difference Result 1674 states and 1918 transitions. [2020-12-22 01:10:30,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:10:30,536 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 308 [2020-12-22 01:10:30,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:10:30,545 INFO L225 Difference]: With dead ends: 1674 [2020-12-22 01:10:30,545 INFO L226 Difference]: Without dead ends: 1672 [2020-12-22 01:10:30,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:10:30,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2020-12-22 01:10:30,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1255. [2020-12-22 01:10:30,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-12-22 01:10:30,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1460 transitions. [2020-12-22 01:10:30,582 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1460 transitions. Word has length 308 [2020-12-22 01:10:30,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:10:30,582 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1460 transitions. [2020-12-22 01:10:30,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:10:30,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1460 transitions. [2020-12-22 01:10:30,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-12-22 01:10:30,590 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:10:30,590 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:10:30,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 01:10:30,591 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:10:30,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:10:30,591 INFO L82 PathProgramCache]: Analyzing trace with hash 761753922, now seen corresponding path program 1 times [2020-12-22 01:10:30,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:10:30,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457900125] [2020-12-22 01:10:30,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:10:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:10:31,179 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 301 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:10:31,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457900125] [2020-12-22 01:10:31,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869500866] [2020-12-22 01:10:31,180 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 01:10:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:10:31,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 01:10:31,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:10:31,711 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 279 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-12-22 01:10:31,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:10:31,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-22 01:10:31,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662946176] [2020-12-22 01:10:31,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:10:31,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:10:31,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:10:31,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:10:31,715 INFO L87 Difference]: Start difference. First operand 1255 states and 1460 transitions. Second operand 3 states. [2020-12-22 01:10:32,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:10:32,346 INFO L93 Difference]: Finished difference Result 3203 states and 3742 transitions. [2020-12-22 01:10:32,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:10:32,347 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 336 [2020-12-22 01:10:32,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:10:32,358 INFO L225 Difference]: With dead ends: 3203 [2020-12-22 01:10:32,358 INFO L226 Difference]: Without dead ends: 2089 [2020-12-22 01:10:32,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:10:32,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2020-12-22 01:10:32,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2089. [2020-12-22 01:10:32,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2020-12-22 01:10:32,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2369 transitions. [2020-12-22 01:10:32,434 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2369 transitions. Word has length 336 [2020-12-22 01:10:32,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:10:32,435 INFO L481 AbstractCegarLoop]: Abstraction has 2089 states and 2369 transitions. [2020-12-22 01:10:32,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:10:32,436 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2369 transitions. [2020-12-22 01:10:32,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-12-22 01:10:32,445 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:10:32,445 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:10:32,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-12-22 01:10:32,660 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:10:32,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:10:32,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1022391006, now seen corresponding path program 1 times [2020-12-22 01:10:32,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:10:32,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545574668] [2020-12-22 01:10:32,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:10:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:10:33,220 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 23 proven. 78 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-12-22 01:10:33,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545574668] [2020-12-22 01:10:33,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887141745] [2020-12-22 01:10:33,221 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 01:10:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:10:33,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 01:10:33,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:10:33,747 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-12-22 01:10:33,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:10:33,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-12-22 01:10:33,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431953540] [2020-12-22 01:10:33,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:10:33,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:10:33,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:10:33,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 01:10:33,750 INFO L87 Difference]: Start difference. First operand 2089 states and 2369 transitions. Second operand 3 states. [2020-12-22 01:10:34,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:10:34,412 INFO L93 Difference]: Finished difference Result 4035 states and 4592 transitions. [2020-12-22 01:10:34,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:10:34,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 349 [2020-12-22 01:10:34,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:10:34,414 INFO L225 Difference]: With dead ends: 4035 [2020-12-22 01:10:34,414 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 01:10:34,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 01:10:34,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 01:10:34,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 01:10:34,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 01:10:34,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 01:10:34,420 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 349 [2020-12-22 01:10:34,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:10:34,420 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 01:10:34,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:10:34,421 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 01:10:34,421 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 01:10:34,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-22 01:10:34,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 01:10:34,879 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 27 [2020-12-22 01:10:35,010 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 27 [2020-12-22 01:10:35,015 INFO L189 CegarLoopUtils]: For program point L597(line 597) no Hoare annotation was computed. [2020-12-22 01:10:35,015 INFO L189 CegarLoopUtils]: For program point L564(lines 564 582) no Hoare annotation was computed. [2020-12-22 01:10:35,015 INFO L189 CegarLoopUtils]: For program point L333(lines 333 582) no Hoare annotation was computed. [2020-12-22 01:10:35,015 INFO L189 CegarLoopUtils]: For program point L367(lines 367 582) no Hoare annotation was computed. [2020-12-22 01:10:35,015 INFO L189 CegarLoopUtils]: For program point L301(lines 301 582) no Hoare annotation was computed. [2020-12-22 01:10:35,015 INFO L189 CegarLoopUtils]: For program point L235(lines 235 582) no Hoare annotation was computed. [2020-12-22 01:10:35,015 INFO L189 CegarLoopUtils]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,016 INFO L189 CegarLoopUtils]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,016 INFO L189 CegarLoopUtils]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,016 INFO L189 CegarLoopUtils]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,016 INFO L189 CegarLoopUtils]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,017 INFO L189 CegarLoopUtils]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,018 INFO L189 CegarLoopUtils]: For program point L533(lines 533 582) no Hoare annotation was computed. [2020-12-22 01:10:35,018 INFO L189 CegarLoopUtils]: For program point L203(line 203) no Hoare annotation was computed. [2020-12-22 01:10:35,018 INFO L189 CegarLoopUtils]: For program point L170(line 170) no Hoare annotation was computed. [2020-12-22 01:10:35,018 INFO L189 CegarLoopUtils]: For program point L137(line 137) no Hoare annotation was computed. [2020-12-22 01:10:35,018 INFO L189 CegarLoopUtils]: For program point L104(line 104) no Hoare annotation was computed. [2020-12-22 01:10:35,018 INFO L189 CegarLoopUtils]: For program point L71(line 71) no Hoare annotation was computed. [2020-12-22 01:10:35,018 INFO L189 CegarLoopUtils]: For program point L38(line 38) no Hoare annotation was computed. [2020-12-22 01:10:35,018 INFO L189 CegarLoopUtils]: For program point L567(lines 567 582) no Hoare annotation was computed. [2020-12-22 01:10:35,018 INFO L189 CegarLoopUtils]: For program point L435(lines 435 582) no Hoare annotation was computed. [2020-12-22 01:10:35,019 INFO L189 CegarLoopUtils]: For program point L336(lines 336 582) no Hoare annotation was computed. [2020-12-22 01:10:35,019 INFO L189 CegarLoopUtils]: For program point L270(lines 270 582) no Hoare annotation was computed. [2020-12-22 01:10:35,019 INFO L189 CegarLoopUtils]: For program point L403(lines 403 582) no Hoare annotation was computed. [2020-12-22 01:10:35,019 INFO L189 CegarLoopUtils]: For program point L370(lines 370 582) no Hoare annotation was computed. [2020-12-22 01:10:35,019 INFO L189 CegarLoopUtils]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,019 INFO L189 CegarLoopUtils]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,019 INFO L189 CegarLoopUtils]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,019 INFO L189 CegarLoopUtils]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,019 INFO L189 CegarLoopUtils]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,020 INFO L189 CegarLoopUtils]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,020 INFO L189 CegarLoopUtils]: For program point L536(lines 536 582) no Hoare annotation was computed. [2020-12-22 01:10:35,020 INFO L189 CegarLoopUtils]: For program point L503(lines 503 582) no Hoare annotation was computed. [2020-12-22 01:10:35,021 INFO L189 CegarLoopUtils]: For program point L470(lines 470 582) no Hoare annotation was computed. [2020-12-22 01:10:35,021 INFO L189 CegarLoopUtils]: For program point L206(line 206) no Hoare annotation was computed. [2020-12-22 01:10:35,021 INFO L189 CegarLoopUtils]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-22 01:10:35,021 INFO L189 CegarLoopUtils]: For program point L140(line 140) no Hoare annotation was computed. [2020-12-22 01:10:35,021 INFO L189 CegarLoopUtils]: For program point L107(line 107) no Hoare annotation was computed. [2020-12-22 01:10:35,021 INFO L189 CegarLoopUtils]: For program point L74(line 74) no Hoare annotation was computed. [2020-12-22 01:10:35,021 INFO L189 CegarLoopUtils]: For program point L41(line 41) no Hoare annotation was computed. [2020-12-22 01:10:35,021 INFO L189 CegarLoopUtils]: For program point L339(lines 339 582) no Hoare annotation was computed. [2020-12-22 01:10:35,021 INFO L189 CegarLoopUtils]: For program point L306(lines 306 582) no Hoare annotation was computed. [2020-12-22 01:10:35,022 INFO L189 CegarLoopUtils]: For program point L241(lines 241 582) no Hoare annotation was computed. [2020-12-22 01:10:35,022 INFO L189 CegarLoopUtils]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,022 INFO L189 CegarLoopUtils]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,022 INFO L189 CegarLoopUtils]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,022 INFO L189 CegarLoopUtils]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,022 INFO L189 CegarLoopUtils]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,022 INFO L189 CegarLoopUtils]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,022 INFO L189 CegarLoopUtils]: For program point L539(lines 539 582) no Hoare annotation was computed. [2020-12-22 01:10:35,022 INFO L189 CegarLoopUtils]: For program point L440(lines 440 582) no Hoare annotation was computed. [2020-12-22 01:10:35,022 INFO L189 CegarLoopUtils]: For program point L275(lines 275 582) no Hoare annotation was computed. [2020-12-22 01:10:35,023 INFO L189 CegarLoopUtils]: For program point L209(line 209) no Hoare annotation was computed. [2020-12-22 01:10:35,023 INFO L189 CegarLoopUtils]: For program point L176(line 176) no Hoare annotation was computed. [2020-12-22 01:10:35,023 INFO L189 CegarLoopUtils]: For program point L143(line 143) no Hoare annotation was computed. [2020-12-22 01:10:35,023 INFO L189 CegarLoopUtils]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-22 01:10:35,023 INFO L189 CegarLoopUtils]: For program point L77(line 77) no Hoare annotation was computed. [2020-12-22 01:10:35,023 INFO L189 CegarLoopUtils]: For program point L44(line 44) no Hoare annotation was computed. [2020-12-22 01:10:35,023 INFO L189 CegarLoopUtils]: For program point L573(lines 573 582) no Hoare annotation was computed. [2020-12-22 01:10:35,023 INFO L189 CegarLoopUtils]: For program point L408(lines 408 582) no Hoare annotation was computed. [2020-12-22 01:10:35,023 INFO L189 CegarLoopUtils]: For program point L375(lines 375 582) no Hoare annotation was computed. [2020-12-22 01:10:35,023 INFO L189 CegarLoopUtils]: For program point L475(lines 475 582) no Hoare annotation was computed. [2020-12-22 01:10:35,024 INFO L189 CegarLoopUtils]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,024 INFO L189 CegarLoopUtils]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,024 INFO L189 CegarLoopUtils]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,024 INFO L189 CegarLoopUtils]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,024 INFO L189 CegarLoopUtils]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,024 INFO L189 CegarLoopUtils]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,024 INFO L189 CegarLoopUtils]: For program point L509(lines 509 582) no Hoare annotation was computed. [2020-12-22 01:10:35,024 INFO L189 CegarLoopUtils]: For program point L311(lines 311 582) no Hoare annotation was computed. [2020-12-22 01:10:35,024 INFO L189 CegarLoopUtils]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-22 01:10:35,024 INFO L189 CegarLoopUtils]: For program point L179(line 179) no Hoare annotation was computed. [2020-12-22 01:10:35,025 INFO L189 CegarLoopUtils]: For program point L146(line 146) no Hoare annotation was computed. [2020-12-22 01:10:35,025 INFO L189 CegarLoopUtils]: For program point L113(line 113) no Hoare annotation was computed. [2020-12-22 01:10:35,025 INFO L189 CegarLoopUtils]: For program point L80(line 80) no Hoare annotation was computed. [2020-12-22 01:10:35,025 INFO L189 CegarLoopUtils]: For program point L47(line 47) no Hoare annotation was computed. [2020-12-22 01:10:35,025 INFO L189 CegarLoopUtils]: For program point L345(lines 345 582) no Hoare annotation was computed. [2020-12-22 01:10:35,025 INFO L189 CegarLoopUtils]: For program point L246(lines 246 582) no Hoare annotation was computed. [2020-12-22 01:10:35,025 INFO L189 CegarLoopUtils]: For program point L544(lines 544 582) no Hoare annotation was computed. [2020-12-22 01:10:35,025 INFO L189 CegarLoopUtils]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,025 INFO L189 CegarLoopUtils]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,025 INFO L189 CegarLoopUtils]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,025 INFO L189 CegarLoopUtils]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,026 INFO L189 CegarLoopUtils]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,026 INFO L189 CegarLoopUtils]: For program point L446(lines 446 582) no Hoare annotation was computed. [2020-12-22 01:10:35,026 INFO L189 CegarLoopUtils]: For program point L413(lines 413 582) no Hoare annotation was computed. [2020-12-22 01:10:35,026 INFO L189 CegarLoopUtils]: For program point L380(lines 380 582) no Hoare annotation was computed. [2020-12-22 01:10:35,026 INFO L189 CegarLoopUtils]: For program point L281(lines 281 582) no Hoare annotation was computed. [2020-12-22 01:10:35,026 INFO L189 CegarLoopUtils]: For program point L182(line 182) no Hoare annotation was computed. [2020-12-22 01:10:35,026 INFO L189 CegarLoopUtils]: For program point L149(line 149) no Hoare annotation was computed. [2020-12-22 01:10:35,026 INFO L189 CegarLoopUtils]: For program point L116(line 116) no Hoare annotation was computed. [2020-12-22 01:10:35,026 INFO L189 CegarLoopUtils]: For program point L83(line 83) no Hoare annotation was computed. [2020-12-22 01:10:35,026 INFO L189 CegarLoopUtils]: For program point L50(line 50) no Hoare annotation was computed. [2020-12-22 01:10:35,027 INFO L189 CegarLoopUtils]: For program point L579(lines 579 582) no Hoare annotation was computed. [2020-12-22 01:10:35,027 INFO L189 CegarLoopUtils]: For program point L249(lines 249 582) no Hoare annotation was computed. [2020-12-22 01:10:35,027 INFO L189 CegarLoopUtils]: For program point L514(lines 514 582) no Hoare annotation was computed. [2020-12-22 01:10:35,027 INFO L189 CegarLoopUtils]: For program point L481(lines 481 582) no Hoare annotation was computed. [2020-12-22 01:10:35,027 INFO L189 CegarLoopUtils]: For program point L316(lines 316 582) no Hoare annotation was computed. [2020-12-22 01:10:35,027 INFO L189 CegarLoopUtils]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,027 INFO L189 CegarLoopUtils]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,027 INFO L189 CegarLoopUtils]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,027 INFO L189 CegarLoopUtils]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,027 INFO L189 CegarLoopUtils]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,028 INFO L189 CegarLoopUtils]: For program point L350(lines 350 582) no Hoare annotation was computed. [2020-12-22 01:10:35,028 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 01:10:35,028 INFO L189 CegarLoopUtils]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-22 01:10:35,028 INFO L189 CegarLoopUtils]: For program point L152(line 152) no Hoare annotation was computed. [2020-12-22 01:10:35,028 INFO L189 CegarLoopUtils]: For program point L119(line 119) no Hoare annotation was computed. [2020-12-22 01:10:35,028 INFO L189 CegarLoopUtils]: For program point L86(line 86) no Hoare annotation was computed. [2020-12-22 01:10:35,028 INFO L189 CegarLoopUtils]: For program point L53(line 53) no Hoare annotation was computed. [2020-12-22 01:10:35,029 INFO L185 CegarLoopUtils]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse2 (<= ~a19~0 9)) (.cse3 (<= 7 ~a19~0)) (.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0))) (or (and .cse0 (<= 4 ~a10~0) .cse1 .cse2) (and .cse0 .cse3 (= ~a10~0 2) .cse1 .cse2) (and (= ~a10~0 3) .cse0 .cse1 .cse2) (and (= ~a10~0 1) .cse0 .cse3 .cse1) (and .cse0 (= ~a10~0 0) .cse1))) [2020-12-22 01:10:35,029 INFO L189 CegarLoopUtils]: For program point L550(lines 550 582) no Hoare annotation was computed. [2020-12-22 01:10:35,029 INFO L189 CegarLoopUtils]: For program point L418(lines 418 582) no Hoare annotation was computed. [2020-12-22 01:10:35,029 INFO L189 CegarLoopUtils]: For program point L385(lines 385 582) no Hoare annotation was computed. [2020-12-22 01:10:35,029 INFO L189 CegarLoopUtils]: For program point L220(lines 220 582) no Hoare annotation was computed. [2020-12-22 01:10:35,029 INFO L189 CegarLoopUtils]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,030 INFO L189 CegarLoopUtils]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,030 INFO L189 CegarLoopUtils]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,030 INFO L189 CegarLoopUtils]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,030 INFO L189 CegarLoopUtils]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,030 INFO L189 CegarLoopUtils]: For program point L452(lines 452 582) no Hoare annotation was computed. [2020-12-22 01:10:35,030 INFO L189 CegarLoopUtils]: For program point L287(lines 287 582) no Hoare annotation was computed. [2020-12-22 01:10:35,030 INFO L189 CegarLoopUtils]: For program point L254(lines 254 582) no Hoare annotation was computed. [2020-12-22 01:10:35,031 INFO L189 CegarLoopUtils]: For program point L188(line 188) no Hoare annotation was computed. [2020-12-22 01:10:35,031 INFO L189 CegarLoopUtils]: For program point L155(line 155) no Hoare annotation was computed. [2020-12-22 01:10:35,031 INFO L189 CegarLoopUtils]: For program point L122(line 122) no Hoare annotation was computed. [2020-12-22 01:10:35,031 INFO L189 CegarLoopUtils]: For program point L89(line 89) no Hoare annotation was computed. [2020-12-22 01:10:35,031 INFO L189 CegarLoopUtils]: For program point L56(line 56) no Hoare annotation was computed. [2020-12-22 01:10:35,031 INFO L189 CegarLoopUtils]: For program point L519(lines 519 582) no Hoare annotation was computed. [2020-12-22 01:10:35,031 INFO L189 CegarLoopUtils]: For program point L486(lines 486 582) no Hoare annotation was computed. [2020-12-22 01:10:35,031 INFO L192 CegarLoopUtils]: At program point L586(lines 586 602) the Hoare annotation is: true [2020-12-22 01:10:35,031 INFO L189 CegarLoopUtils]: For program point L388(lines 388 582) no Hoare annotation was computed. [2020-12-22 01:10:35,032 INFO L189 CegarLoopUtils]: For program point L355(lines 355 582) no Hoare annotation was computed. [2020-12-22 01:10:35,032 INFO L189 CegarLoopUtils]: For program point L322(lines 322 582) no Hoare annotation was computed. [2020-12-22 01:10:35,032 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 01:10:35,032 INFO L189 CegarLoopUtils]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,032 INFO L189 CegarLoopUtils]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,032 INFO L189 CegarLoopUtils]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,032 INFO L189 CegarLoopUtils]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,032 INFO L189 CegarLoopUtils]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,032 INFO L189 CegarLoopUtils]: For program point L191(line 191) no Hoare annotation was computed. [2020-12-22 01:10:35,032 INFO L189 CegarLoopUtils]: For program point L158(line 158) no Hoare annotation was computed. [2020-12-22 01:10:35,033 INFO L189 CegarLoopUtils]: For program point L125(line 125) no Hoare annotation was computed. [2020-12-22 01:10:35,033 INFO L189 CegarLoopUtils]: For program point L92(line 92) no Hoare annotation was computed. [2020-12-22 01:10:35,033 INFO L189 CegarLoopUtils]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-22 01:10:35,033 INFO L189 CegarLoopUtils]: For program point L555(lines 555 582) no Hoare annotation was computed. [2020-12-22 01:10:35,033 INFO L189 CegarLoopUtils]: For program point L225(lines 225 582) no Hoare annotation was computed. [2020-12-22 01:10:35,033 INFO L189 CegarLoopUtils]: For program point L424(lines 424 582) no Hoare annotation was computed. [2020-12-22 01:10:35,033 INFO L189 CegarLoopUtils]: For program point L259(lines 259 582) no Hoare annotation was computed. [2020-12-22 01:10:35,033 INFO L189 CegarLoopUtils]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,033 INFO L189 CegarLoopUtils]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,033 INFO L189 CegarLoopUtils]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,034 INFO L189 CegarLoopUtils]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,034 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 01:10:35,034 INFO L189 CegarLoopUtils]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,034 INFO L189 CegarLoopUtils]: For program point L524(lines 524 582) no Hoare annotation was computed. [2020-12-22 01:10:35,034 INFO L189 CegarLoopUtils]: For program point L491(lines 491 582) no Hoare annotation was computed. [2020-12-22 01:10:35,034 INFO L189 CegarLoopUtils]: For program point L458(lines 458 582) no Hoare annotation was computed. [2020-12-22 01:10:35,034 INFO L189 CegarLoopUtils]: For program point L293(lines 293 582) no Hoare annotation was computed. [2020-12-22 01:10:35,034 INFO L189 CegarLoopUtils]: For program point L194(line 194) no Hoare annotation was computed. [2020-12-22 01:10:35,034 INFO L189 CegarLoopUtils]: For program point L161(line 161) no Hoare annotation was computed. [2020-12-22 01:10:35,034 INFO L189 CegarLoopUtils]: For program point L128(line 128) no Hoare annotation was computed. [2020-12-22 01:10:35,035 INFO L189 CegarLoopUtils]: For program point L95(line 95) no Hoare annotation was computed. [2020-12-22 01:10:35,035 INFO L189 CegarLoopUtils]: For program point L62(line 62) no Hoare annotation was computed. [2020-12-22 01:10:35,035 INFO L189 CegarLoopUtils]: For program point L558(lines 558 582) no Hoare annotation was computed. [2020-12-22 01:10:35,035 INFO L189 CegarLoopUtils]: For program point L393(lines 393 582) no Hoare annotation was computed. [2020-12-22 01:10:35,035 INFO L189 CegarLoopUtils]: For program point L327(lines 327 582) no Hoare annotation was computed. [2020-12-22 01:10:35,035 INFO L185 CegarLoopUtils]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse2 (<= ~a19~0 9)) (.cse3 (<= 7 ~a19~0)) (.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0))) (or (and .cse0 (<= 4 ~a10~0) .cse1 .cse2) (and .cse0 .cse3 (= ~a10~0 2) .cse1 .cse2) (and (= ~a10~0 3) .cse0 .cse1 .cse2) (and (= ~a10~0 1) .cse0 .cse3 .cse1) (and .cse0 (= ~a10~0 0) .cse1))) [2020-12-22 01:10:35,035 INFO L189 CegarLoopUtils]: For program point L361(lines 361 582) no Hoare annotation was computed. [2020-12-22 01:10:35,035 INFO L189 CegarLoopUtils]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,035 INFO L189 CegarLoopUtils]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,036 INFO L189 CegarLoopUtils]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,036 INFO L189 CegarLoopUtils]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,036 INFO L189 CegarLoopUtils]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-12-22 01:10:35,036 INFO L189 CegarLoopUtils]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,036 INFO L189 CegarLoopUtils]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,036 INFO L189 CegarLoopUtils]: For program point L527(lines 527 582) no Hoare annotation was computed. [2020-12-22 01:10:35,036 INFO L189 CegarLoopUtils]: For program point L296(lines 296 582) no Hoare annotation was computed. [2020-12-22 01:10:35,036 INFO L189 CegarLoopUtils]: For program point L230(lines 230 582) no Hoare annotation was computed. [2020-12-22 01:10:35,036 INFO L189 CegarLoopUtils]: For program point L197(line 197) no Hoare annotation was computed. [2020-12-22 01:10:35,036 INFO L189 CegarLoopUtils]: For program point L164(line 164) no Hoare annotation was computed. [2020-12-22 01:10:35,037 INFO L189 CegarLoopUtils]: For program point L131(line 131) no Hoare annotation was computed. [2020-12-22 01:10:35,037 INFO L189 CegarLoopUtils]: For program point L98(line 98) no Hoare annotation was computed. [2020-12-22 01:10:35,037 INFO L189 CegarLoopUtils]: For program point L65(line 65) no Hoare annotation was computed. [2020-12-22 01:10:35,037 INFO L189 CegarLoopUtils]: For program point L32(line 32) no Hoare annotation was computed. [2020-12-22 01:10:35,037 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 01:10:35,038 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2020-12-22 01:10:35,038 INFO L189 CegarLoopUtils]: For program point L429(lines 429 582) no Hoare annotation was computed. [2020-12-22 01:10:35,038 INFO L189 CegarLoopUtils]: For program point L330(lines 330 582) no Hoare annotation was computed. [2020-12-22 01:10:35,038 INFO L189 CegarLoopUtils]: For program point L264(lines 264 582) no Hoare annotation was computed. [2020-12-22 01:10:35,038 INFO L189 CegarLoopUtils]: For program point L364(lines 364 582) no Hoare annotation was computed. [2020-12-22 01:10:35,038 INFO L189 CegarLoopUtils]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,038 INFO L189 CegarLoopUtils]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,038 INFO L189 CegarLoopUtils]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,039 INFO L189 CegarLoopUtils]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,039 INFO L189 CegarLoopUtils]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,039 INFO L189 CegarLoopUtils]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2020-12-22 01:10:35,039 INFO L189 CegarLoopUtils]: For program point L497(lines 497 582) no Hoare annotation was computed. [2020-12-22 01:10:35,039 INFO L189 CegarLoopUtils]: For program point L464(lines 464 582) no Hoare annotation was computed. [2020-12-22 01:10:35,039 INFO L189 CegarLoopUtils]: For program point L398(lines 398 582) no Hoare annotation was computed. [2020-12-22 01:10:35,039 INFO L189 CegarLoopUtils]: For program point L200(line 200) no Hoare annotation was computed. [2020-12-22 01:10:35,039 INFO L189 CegarLoopUtils]: For program point L167(line 167) no Hoare annotation was computed. [2020-12-22 01:10:35,039 INFO L189 CegarLoopUtils]: For program point L134(line 134) no Hoare annotation was computed. [2020-12-22 01:10:35,039 INFO L189 CegarLoopUtils]: For program point L101(line 101) no Hoare annotation was computed. [2020-12-22 01:10:35,039 INFO L189 CegarLoopUtils]: For program point L68(line 68) no Hoare annotation was computed. [2020-12-22 01:10:35,040 INFO L189 CegarLoopUtils]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-22 01:10:35,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 01:10:35 BoogieIcfgContainer [2020-12-22 01:10:35,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 01:10:35,100 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 01:10:35,100 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 01:10:35,100 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 01:10:35,101 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:10:17" (3/4) ... [2020-12-22 01:10:35,105 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 01:10:35,138 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-22 01:10:35,140 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 01:10:35,141 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 01:10:35,142 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 01:10:35,294 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/eca-rers2012/Problem10_label03.c-witness.graphml [2020-12-22 01:10:35,295 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 01:10:35,296 INFO L168 Benchmark]: Toolchain (without parser) took 20190.76 ms. Allocated memory was 151.0 MB in the beginning and 385.9 MB in the end (delta: 234.9 MB). Free memory was 125.2 MB in the beginning and 311.2 MB in the end (delta: -186.0 MB). Peak memory consumption was 49.6 MB. Max. memory is 8.0 GB. [2020-12-22 01:10:35,296 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory was 123.2 MB in the beginning and 123.1 MB in the end (delta: 96.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 01:10:35,297 INFO L168 Benchmark]: CACSL2BoogieTranslator took 768.49 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 129.7 MB in the end (delta: -4.8 MB). Peak memory consumption was 28.7 MB. Max. memory is 8.0 GB. [2020-12-22 01:10:35,297 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.78 ms. Allocated memory is still 151.0 MB. Free memory was 129.7 MB in the beginning and 121.9 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-12-22 01:10:35,298 INFO L168 Benchmark]: Boogie Preprocessor took 96.79 ms. Allocated memory is still 151.0 MB. Free memory was 121.9 MB in the beginning and 116.6 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-12-22 01:10:35,298 INFO L168 Benchmark]: RCFGBuilder took 1461.52 ms. Allocated memory is still 151.0 MB. Free memory was 116.6 MB in the beginning and 92.4 MB in the end (delta: 24.2 MB). Peak memory consumption was 75.6 MB. Max. memory is 8.0 GB. [2020-12-22 01:10:35,298 INFO L168 Benchmark]: TraceAbstraction took 17542.14 ms. Allocated memory was 151.0 MB in the beginning and 385.9 MB in the end (delta: 234.9 MB). Free memory was 91.8 MB in the beginning and 325.8 MB in the end (delta: -234.0 MB). Peak memory consumption was 198.0 MB. Max. memory is 8.0 GB. [2020-12-22 01:10:35,299 INFO L168 Benchmark]: Witness Printer took 195.07 ms. Allocated memory is still 385.9 MB. Free memory was 325.8 MB in the beginning and 311.2 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-12-22 01:10:35,301 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory was 123.2 MB in the beginning and 123.1 MB in the end (delta: 96.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 768.49 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 129.7 MB in the end (delta: -4.8 MB). Peak memory consumption was 28.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 116.78 ms. Allocated memory is still 151.0 MB. Free memory was 129.7 MB in the beginning and 121.9 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 96.79 ms. Allocated memory is still 151.0 MB. Free memory was 121.9 MB in the beginning and 116.6 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1461.52 ms. Allocated memory is still 151.0 MB. Free memory was 116.6 MB in the beginning and 92.4 MB in the end (delta: 24.2 MB). Peak memory consumption was 75.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17542.14 ms. Allocated memory was 151.0 MB in the beginning and 385.9 MB in the end (delta: 234.9 MB). Free memory was 91.8 MB in the beginning and 325.8 MB in the end (delta: -234.0 MB). Peak memory consumption was 198.0 MB. Max. memory is 8.0 GB. * Witness Printer took 195.07 ms. Allocated memory is still 385.9 MB. Free memory was 325.8 MB in the beginning and 311.2 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 122]: 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 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: ((((((14 == a4 && 4 <= a10) && a12 == 0) && a19 <= 9) || ((((14 == a4 && 7 <= a19) && a10 == 2) && a12 == 0) && a19 <= 9)) || (((a10 == 3 && 14 == a4) && a12 == 0) && a19 <= 9)) || (((a10 == 1 && 14 == a4) && 7 <= a19) && a12 == 0)) || ((14 == a4 && a10 == 0) && a12 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((14 == a4 && 4 <= a10) && a12 == 0) && a19 <= 9) || ((((14 == a4 && 7 <= a19) && a10 == 2) && a12 == 0) && a19 <= 9)) || (((a10 == 3 && 14 == a4) && a12 == 0) && a19 <= 9)) || (((a10 == 1 && 14 == a4) && 7 <= a19) && a12 == 0)) || ((14 == a4 && a10 == 0) && a12 == 0) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.0s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1338 SDtfs, 1261 SDslu, 67 SDs, 0 SdLazy, 4997 SolverSat, 864 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 995 GetRequests, 965 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2089occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 981 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 37 NumberOfFragments, 133 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1664 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 202 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 3732 NumberOfCodeBlocks, 3732 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3716 ConstructedInterpolants, 0 QuantifiedInterpolants, 4001406 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1366 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 16 InterpolantComputations, 13 PerfectInterpolantSequences, 2893/3111 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...