/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/Problem14_label16.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 01:53:48,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 01:53:48,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 01:53:48,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-22 01:53:48,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 01:53:48,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 01:53:48,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 01:53:48,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 01:53:48,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 01:53:48,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 01:53:48,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 01:53:48,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 01:53:48,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 01:53:48,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 01:53:48,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 01:53:48,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 01:53:48,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 01:53:48,552 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 01:53:48,612 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 01:53:48,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 01:53:48,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 01:53:48,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 01:53:48,617 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 01:53:48,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 01:53:48,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 01:53:48,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 01:53:48,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 01:53:48,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 01:53:48,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 01:53:48,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 01:53:48,620 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 01:53:48,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 01:53:48,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 01:53:48,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 01:53:48,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 01:53:48,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 01:53:48,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 01:53:48,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 01:53:48,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 01:53:48,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 01:53:48,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 01:53:48,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 01:53:48,624 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 01:53:48,624 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 01:53:49,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 01:53:49,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 01:53:49,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 01:53:49,151 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 01:53:49,152 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 01:53:49,153 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label16.c [2020-12-22 01:53:49,233 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a93c0264/7f3f78828c5442caa3450805b01a6f90/FLAGd9981a9b1 [2020-12-22 01:53:49,983 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 01:53:49,984 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label16.c [2020-12-22 01:53:50,015 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a93c0264/7f3f78828c5442caa3450805b01a6f90/FLAGd9981a9b1 [2020-12-22 01:53:50,155 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a93c0264/7f3f78828c5442caa3450805b01a6f90 [2020-12-22 01:53:50,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 01:53:50,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 01:53:50,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 01:53:50,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 01:53:50,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 01:53:50,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:53:50" (1/1) ... [2020-12-22 01:53:50,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73e59640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:53:50, skipping insertion in model container [2020-12-22 01:53:50,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:53:50" (1/1) ... [2020-12-22 01:53:50,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 01:53:50,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 01:53:50,558 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/Problem14_label16.c[4807,4820] [2020-12-22 01:53:50,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 01:53:50,835 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 01:53:50,871 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/Problem14_label16.c[4807,4820] [2020-12-22 01:53:51,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 01:53:51,071 INFO L208 MainTranslator]: Completed translation [2020-12-22 01:53:51,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:53:51 WrapperNode [2020-12-22 01:53:51,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 01:53:51,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 01:53:51,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 01:53:51,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 01:53:51,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:53:51" (1/1) ... [2020-12-22 01:53:51,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:53:51" (1/1) ... [2020-12-22 01:53:51,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 01:53:51,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 01:53:51,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 01:53:51,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 01:53:51,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:53:51" (1/1) ... [2020-12-22 01:53:51,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:53:51" (1/1) ... [2020-12-22 01:53:51,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:53:51" (1/1) ... [2020-12-22 01:53:51,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:53:51" (1/1) ... [2020-12-22 01:53:51,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:53:51" (1/1) ... [2020-12-22 01:53:51,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:53:51" (1/1) ... [2020-12-22 01:53:51,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:53:51" (1/1) ... [2020-12-22 01:53:51,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 01:53:51,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 01:53:51,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 01:53:51,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 01:53:51,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:53:51" (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 01:53:51,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 01:53:51,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 01:53:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 01:53:51,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 01:53:52,894 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 01:53:52,895 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-22 01:53:52,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:53:52 BoogieIcfgContainer [2020-12-22 01:53:52,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 01:53:52,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 01:53:52,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 01:53:52,902 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 01:53:52,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:53:50" (1/3) ... [2020-12-22 01:53:52,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0ef43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:53:52, skipping insertion in model container [2020-12-22 01:53:52,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:53:51" (2/3) ... [2020-12-22 01:53:52,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0ef43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:53:52, skipping insertion in model container [2020-12-22 01:53:52,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:53:52" (3/3) ... [2020-12-22 01:53:52,906 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label16.c [2020-12-22 01:53:52,912 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 01:53:52,918 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 01:53:52,937 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 01:53:52,965 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 01:53:52,965 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 01:53:52,966 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 01:53:52,966 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 01:53:52,966 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 01:53:52,966 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 01:53:52,966 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 01:53:52,966 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 01:53:52,987 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2020-12-22 01:53:52,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-22 01:53:52,995 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:53:52,996 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:53:52,997 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:53:53,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:53:53,003 INFO L82 PathProgramCache]: Analyzing trace with hash 291089130, now seen corresponding path program 1 times [2020-12-22 01:53:53,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:53:53,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129719667] [2020-12-22 01:53:53,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:53:53,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:53:53,277 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 01:53:53,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129719667] [2020-12-22 01:53:53,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:53:53,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 01:53:53,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481786495] [2020-12-22 01:53:53,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:53:53,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:53:53,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:53:53,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:53:53,303 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 3 states. [2020-12-22 01:53:54,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:53:54,337 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2020-12-22 01:53:54,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:53:54,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-12-22 01:53:54,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:53:54,369 INFO L225 Difference]: With dead ends: 669 [2020-12-22 01:53:54,369 INFO L226 Difference]: Without dead ends: 360 [2020-12-22 01:53:54,379 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 01:53:54,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-12-22 01:53:54,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-12-22 01:53:54,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-12-22 01:53:54,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 588 transitions. [2020-12-22 01:53:54,486 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 588 transitions. Word has length 46 [2020-12-22 01:53:54,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:53:54,486 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 588 transitions. [2020-12-22 01:53:54,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:53:54,487 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 588 transitions. [2020-12-22 01:53:54,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-22 01:53:54,491 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:53:54,491 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, 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] [2020-12-22 01:53:54,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 01:53:54,492 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:53:54,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:53:54,493 INFO L82 PathProgramCache]: Analyzing trace with hash 702330880, now seen corresponding path program 1 times [2020-12-22 01:53:54,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:53:54,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011018118] [2020-12-22 01:53:54,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:53:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:53:54,733 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:53:54,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011018118] [2020-12-22 01:53:54,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:53:54,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 01:53:54,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985572546] [2020-12-22 01:53:54,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:53:54,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:53:54,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:53:54,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:53:54,740 INFO L87 Difference]: Start difference. First operand 360 states and 588 transitions. Second operand 3 states. [2020-12-22 01:53:55,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:53:55,605 INFO L93 Difference]: Finished difference Result 1074 states and 1759 transitions. [2020-12-22 01:53:55,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:53:55,606 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-12-22 01:53:55,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:53:55,610 INFO L225 Difference]: With dead ends: 1074 [2020-12-22 01:53:55,611 INFO L226 Difference]: Without dead ends: 716 [2020-12-22 01:53:55,612 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 01:53:55,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-12-22 01:53:55,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 538. [2020-12-22 01:53:55,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-12-22 01:53:55,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 838 transitions. [2020-12-22 01:53:55,634 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 838 transitions. Word has length 111 [2020-12-22 01:53:55,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:53:55,635 INFO L481 AbstractCegarLoop]: Abstraction has 538 states and 838 transitions. [2020-12-22 01:53:55,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:53:55,635 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 838 transitions. [2020-12-22 01:53:55,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-12-22 01:53:55,638 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:53:55,638 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, 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 01:53:55,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 01:53:55,639 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:53:55,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:53:55,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1078900381, now seen corresponding path program 1 times [2020-12-22 01:53:55,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:53:55,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873508601] [2020-12-22 01:53:55,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:53:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:53:55,879 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:53:55,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873508601] [2020-12-22 01:53:55,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:53:55,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:53:55,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802044426] [2020-12-22 01:53:55,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:53:55,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:53:55,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:53:55,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:53:55,883 INFO L87 Difference]: Start difference. First operand 538 states and 838 transitions. Second operand 4 states. [2020-12-22 01:53:57,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:53:57,714 INFO L93 Difference]: Finished difference Result 1786 states and 2801 transitions. [2020-12-22 01:53:57,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:53:57,715 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 125 [2020-12-22 01:53:57,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:53:57,722 INFO L225 Difference]: With dead ends: 1786 [2020-12-22 01:53:57,722 INFO L226 Difference]: Without dead ends: 1250 [2020-12-22 01:53:57,723 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 01:53:57,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-12-22 01:53:57,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1072. [2020-12-22 01:53:57,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-12-22 01:53:57,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1414 transitions. [2020-12-22 01:53:57,754 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1414 transitions. Word has length 125 [2020-12-22 01:53:57,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:53:57,754 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1414 transitions. [2020-12-22 01:53:57,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:53:57,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1414 transitions. [2020-12-22 01:53:57,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-12-22 01:53:57,762 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:53:57,763 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, 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, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:53:57,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 01:53:57,763 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:53:57,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:53:57,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1282005041, now seen corresponding path program 1 times [2020-12-22 01:53:57,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:53:57,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678802133] [2020-12-22 01:53:57,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:53:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:53:58,083 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-22 01:53:58,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678802133] [2020-12-22 01:53:58,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:53:58,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:53:58,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374921023] [2020-12-22 01:53:58,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:53:58,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:53:58,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:53:58,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:53:58,089 INFO L87 Difference]: Start difference. First operand 1072 states and 1414 transitions. Second operand 4 states. [2020-12-22 01:53:59,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:53:59,181 INFO L93 Difference]: Finished difference Result 2349 states and 3213 transitions. [2020-12-22 01:53:59,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:53:59,181 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 205 [2020-12-22 01:53:59,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:53:59,189 INFO L225 Difference]: With dead ends: 2349 [2020-12-22 01:53:59,189 INFO L226 Difference]: Without dead ends: 1428 [2020-12-22 01:53:59,191 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:53:59,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2020-12-22 01:53:59,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2020-12-22 01:53:59,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-12-22 01:53:59,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1642 transitions. [2020-12-22 01:53:59,223 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1642 transitions. Word has length 205 [2020-12-22 01:53:59,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:53:59,223 INFO L481 AbstractCegarLoop]: Abstraction has 1428 states and 1642 transitions. [2020-12-22 01:53:59,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:53:59,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1642 transitions. [2020-12-22 01:53:59,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-12-22 01:53:59,231 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:53:59,231 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, 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, 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] [2020-12-22 01:53:59,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 01:53:59,231 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:53:59,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:53:59,233 INFO L82 PathProgramCache]: Analyzing trace with hash -310758602, now seen corresponding path program 1 times [2020-12-22 01:53:59,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:53:59,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593129755] [2020-12-22 01:53:59,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:53:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:53:59,709 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-22 01:53:59,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593129755] [2020-12-22 01:53:59,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:53:59,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:53:59,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584401529] [2020-12-22 01:53:59,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:53:59,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:53:59,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:53:59,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:53:59,714 INFO L87 Difference]: Start difference. First operand 1428 states and 1642 transitions. Second operand 3 states. [2020-12-22 01:54:00,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:54:00,513 INFO L93 Difference]: Finished difference Result 2854 states and 3329 transitions. [2020-12-22 01:54:00,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:54:00,515 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 336 [2020-12-22 01:54:00,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:54:00,525 INFO L225 Difference]: With dead ends: 2854 [2020-12-22 01:54:00,525 INFO L226 Difference]: Without dead ends: 1606 [2020-12-22 01:54:00,528 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 01:54:00,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2020-12-22 01:54:00,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2020-12-22 01:54:00,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-12-22 01:54:00,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1849 transitions. [2020-12-22 01:54:00,564 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1849 transitions. Word has length 336 [2020-12-22 01:54:00,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:54:00,565 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1849 transitions. [2020-12-22 01:54:00,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:54:00,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1849 transitions. [2020-12-22 01:54:00,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-12-22 01:54:00,572 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:54:00,573 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, 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, 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] [2020-12-22 01:54:00,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 01:54:00,573 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:54:00,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:54:00,574 INFO L82 PathProgramCache]: Analyzing trace with hash 186353912, now seen corresponding path program 1 times [2020-12-22 01:54:00,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:54:00,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923469322] [2020-12-22 01:54:00,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:54:00,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:54:01,090 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 186 proven. 130 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-12-22 01:54:01,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923469322] [2020-12-22 01:54:01,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30634549] [2020-12-22 01:54:01,091 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 01:54:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:54:01,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 01:54:01,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:54:01,982 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-12-22 01:54:01,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:54:01,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 01:54:01,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647085943] [2020-12-22 01:54:01,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:54:01,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:54:01,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:54:01,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 01:54:01,987 INFO L87 Difference]: Start difference. First operand 1606 states and 1849 transitions. Second operand 3 states. [2020-12-22 01:54:02,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:54:02,699 INFO L93 Difference]: Finished difference Result 3566 states and 4203 transitions. [2020-12-22 01:54:02,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:54:02,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 339 [2020-12-22 01:54:02,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:54:02,710 INFO L225 Difference]: With dead ends: 3566 [2020-12-22 01:54:02,710 INFO L226 Difference]: Without dead ends: 2140 [2020-12-22 01:54:02,712 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 01:54:02,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-12-22 01:54:02,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1962. [2020-12-22 01:54:02,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-12-22 01:54:02,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2229 transitions. [2020-12-22 01:54:02,755 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2229 transitions. Word has length 339 [2020-12-22 01:54:02,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:54:02,756 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2229 transitions. [2020-12-22 01:54:02,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:54:02,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2229 transitions. [2020-12-22 01:54:02,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2020-12-22 01:54:02,764 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:54:02,765 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:54:02,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-22 01:54:02,981 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:54:02,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:54:02,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1505868490, now seen corresponding path program 1 times [2020-12-22 01:54:02,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:54:02,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869162733] [2020-12-22 01:54:02,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:54:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:54:03,526 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 396 proven. 0 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2020-12-22 01:54:03,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869162733] [2020-12-22 01:54:03,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:54:03,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:54:03,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053134309] [2020-12-22 01:54:03,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:54:03,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:54:03,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:54:03,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:54:03,531 INFO L87 Difference]: Start difference. First operand 1962 states and 2229 transitions. Second operand 4 states. [2020-12-22 01:54:04,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:54:04,356 INFO L93 Difference]: Finished difference Result 3951 states and 4507 transitions. [2020-12-22 01:54:04,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:54:04,357 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 416 [2020-12-22 01:54:04,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:54:04,367 INFO L225 Difference]: With dead ends: 3951 [2020-12-22 01:54:04,367 INFO L226 Difference]: Without dead ends: 2140 [2020-12-22 01:54:04,370 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:54:04,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-12-22 01:54:04,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1962. [2020-12-22 01:54:04,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-12-22 01:54:04,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2147 transitions. [2020-12-22 01:54:04,413 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2147 transitions. Word has length 416 [2020-12-22 01:54:04,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:54:04,414 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2147 transitions. [2020-12-22 01:54:04,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:54:04,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2147 transitions. [2020-12-22 01:54:04,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2020-12-22 01:54:04,423 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:54:04,423 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 2, 2, 1, 1, 1, 1, 1, 1] [2020-12-22 01:54:04,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 01:54:04,424 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:54:04,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:54:04,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1793377035, now seen corresponding path program 2 times [2020-12-22 01:54:04,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:54:04,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90180060] [2020-12-22 01:54:04,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:54:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:54:04,928 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-12-22 01:54:04,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90180060] [2020-12-22 01:54:04,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:54:04,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:54:04,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361661524] [2020-12-22 01:54:04,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:54:04,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:54:04,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:54:04,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:54:04,931 INFO L87 Difference]: Start difference. First operand 1962 states and 2147 transitions. Second operand 3 states. [2020-12-22 01:54:05,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:54:05,704 INFO L93 Difference]: Finished difference Result 4278 states and 4730 transitions. [2020-12-22 01:54:05,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:54:05,704 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 442 [2020-12-22 01:54:05,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:54:05,716 INFO L225 Difference]: With dead ends: 4278 [2020-12-22 01:54:05,716 INFO L226 Difference]: Without dead ends: 2496 [2020-12-22 01:54:05,720 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 01:54:05,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-12-22 01:54:05,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2140. [2020-12-22 01:54:05,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-12-22 01:54:05,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2325 transitions. [2020-12-22 01:54:05,768 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2325 transitions. Word has length 442 [2020-12-22 01:54:05,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:54:05,769 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2325 transitions. [2020-12-22 01:54:05,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:54:05,770 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2325 transitions. [2020-12-22 01:54:05,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2020-12-22 01:54:05,773 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:54:05,773 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:54:05,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 01:54:05,774 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:54:05,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:54:05,774 INFO L82 PathProgramCache]: Analyzing trace with hash 732340422, now seen corresponding path program 1 times [2020-12-22 01:54:05,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:54:05,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443566439] [2020-12-22 01:54:05,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:54:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:54:06,188 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-12-22 01:54:06,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443566439] [2020-12-22 01:54:06,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:54:06,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:54:06,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983066432] [2020-12-22 01:54:06,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:54:06,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:54:06,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:54:06,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:54:06,193 INFO L87 Difference]: Start difference. First operand 2140 states and 2325 transitions. Second operand 3 states. [2020-12-22 01:54:06,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:54:06,938 INFO L93 Difference]: Finished difference Result 4990 states and 5484 transitions. [2020-12-22 01:54:06,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:54:06,939 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 449 [2020-12-22 01:54:06,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:54:06,954 INFO L225 Difference]: With dead ends: 4990 [2020-12-22 01:54:06,954 INFO L226 Difference]: Without dead ends: 3030 [2020-12-22 01:54:06,958 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 01:54:06,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2020-12-22 01:54:07,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3030. [2020-12-22 01:54:07,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2020-12-22 01:54:07,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3277 transitions. [2020-12-22 01:54:07,031 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3277 transitions. Word has length 449 [2020-12-22 01:54:07,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:54:07,032 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 3277 transitions. [2020-12-22 01:54:07,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:54:07,032 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3277 transitions. [2020-12-22 01:54:07,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2020-12-22 01:54:07,036 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:54:07,037 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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] [2020-12-22 01:54:07,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 01:54:07,037 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:54:07,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:54:07,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1666207629, now seen corresponding path program 1 times [2020-12-22 01:54:07,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:54:07,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992754182] [2020-12-22 01:54:07,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:54:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:54:07,750 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 425 proven. 195 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-12-22 01:54:07,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992754182] [2020-12-22 01:54:07,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102995176] [2020-12-22 01:54:07,751 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 01:54:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:54:07,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 01:54:07,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:54:08,506 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2020-12-22 01:54:08,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:54:08,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-22 01:54:08,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067003466] [2020-12-22 01:54:08,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:54:08,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:54:08,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:54:08,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:54:08,509 INFO L87 Difference]: Start difference. First operand 3030 states and 3277 transitions. Second operand 3 states. [2020-12-22 01:54:09,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:54:09,238 INFO L93 Difference]: Finished difference Result 3744 states and 4035 transitions. [2020-12-22 01:54:09,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:54:09,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 494 [2020-12-22 01:54:09,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:54:09,255 INFO L225 Difference]: With dead ends: 3744 [2020-12-22 01:54:09,256 INFO L226 Difference]: Without dead ends: 3742 [2020-12-22 01:54:09,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:54:09,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2020-12-22 01:54:09,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3030. [2020-12-22 01:54:09,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2020-12-22 01:54:09,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3277 transitions. [2020-12-22 01:54:09,332 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3277 transitions. Word has length 494 [2020-12-22 01:54:09,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:54:09,334 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 3277 transitions. [2020-12-22 01:54:09,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:54:09,334 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3277 transitions. [2020-12-22 01:54:09,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 619 [2020-12-22 01:54:09,340 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:54:09,341 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-12-22 01:54:09,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-22 01:54:09,555 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:54:09,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:54:09,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1649259841, now seen corresponding path program 1 times [2020-12-22 01:54:09,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:54:09,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877121033] [2020-12-22 01:54:09,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:54:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:54:10,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1230 backedges. 886 proven. 195 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-12-22 01:54:10,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877121033] [2020-12-22 01:54:10,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157218876] [2020-12-22 01:54:10,500 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 01:54:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:54:10,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 01:54:10,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:54:11,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1230 backedges. 219 proven. 0 refuted. 0 times theorem prover too weak. 1011 trivial. 0 not checked. [2020-12-22 01:54:11,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:54:11,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-22 01:54:11,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801124371] [2020-12-22 01:54:11,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:54:11,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:54:11,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:54:11,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:54:11,605 INFO L87 Difference]: Start difference. First operand 3030 states and 3277 transitions. Second operand 3 states. [2020-12-22 01:54:12,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:54:12,451 INFO L93 Difference]: Finished difference Result 7304 states and 7982 transitions. [2020-12-22 01:54:12,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:54:12,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 618 [2020-12-22 01:54:12,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:54:12,471 INFO L225 Difference]: With dead ends: 7304 [2020-12-22 01:54:12,471 INFO L226 Difference]: Without dead ends: 4454 [2020-12-22 01:54:12,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 622 GetRequests, 617 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:54:12,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-12-22 01:54:12,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 3564. [2020-12-22 01:54:12,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2020-12-22 01:54:12,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3891 transitions. [2020-12-22 01:54:12,559 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3891 transitions. Word has length 618 [2020-12-22 01:54:12,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:54:12,560 INFO L481 AbstractCegarLoop]: Abstraction has 3564 states and 3891 transitions. [2020-12-22 01:54:12,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:54:12,561 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3891 transitions. [2020-12-22 01:54:12,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2020-12-22 01:54:12,569 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:54:12,570 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:54:12,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-12-22 01:54:12,784 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:54:12,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:54:12,785 INFO L82 PathProgramCache]: Analyzing trace with hash -960409520, now seen corresponding path program 1 times [2020-12-22 01:54:12,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:54:12,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487250180] [2020-12-22 01:54:12,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:54:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:54:13,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1327 backedges. 983 proven. 195 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-12-22 01:54:13,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487250180] [2020-12-22 01:54:13,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245209689] [2020-12-22 01:54:13,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:54:14,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:54:14,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 01:54:14,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:54:14,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1327 backedges. 219 proven. 0 refuted. 0 times theorem prover too weak. 1108 trivial. 0 not checked. [2020-12-22 01:54:14,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:54:14,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-22 01:54:14,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097065497] [2020-12-22 01:54:14,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:54:14,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:54:14,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:54:14,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:54:14,848 INFO L87 Difference]: Start difference. First operand 3564 states and 3891 transitions. Second operand 3 states. [2020-12-22 01:54:15,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:54:15,731 INFO L93 Difference]: Finished difference Result 7480 states and 8234 transitions. [2020-12-22 01:54:15,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:54:15,732 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 688 [2020-12-22 01:54:15,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:54:15,733 INFO L225 Difference]: With dead ends: 7480 [2020-12-22 01:54:15,733 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 01:54:15,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 687 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:54:15,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 01:54:15,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 01:54:15,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 01:54:15,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 01:54:15,742 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 688 [2020-12-22 01:54:15,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:54:15,742 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 01:54:15,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:54:15,742 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 01:54:15,742 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 01:54:15,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:54:15,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 01:54:16,216 INFO L189 CegarLoopUtils]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-12-22 01:54:16,217 INFO L189 CegarLoopUtils]: For program point L895(line 895) no Hoare annotation was computed. [2020-12-22 01:54:16,217 INFO L189 CegarLoopUtils]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-12-22 01:54:16,217 INFO L189 CegarLoopUtils]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-12-22 01:54:16,218 INFO L189 CegarLoopUtils]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-12-22 01:54:16,218 INFO L189 CegarLoopUtils]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,218 INFO L189 CegarLoopUtils]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,218 INFO L189 CegarLoopUtils]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,218 INFO L189 CegarLoopUtils]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-12-22 01:54:16,218 INFO L189 CegarLoopUtils]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-12-22 01:54:16,218 INFO L189 CegarLoopUtils]: For program point L170(line 170) no Hoare annotation was computed. [2020-12-22 01:54:16,219 INFO L189 CegarLoopUtils]: For program point L104(line 104) no Hoare annotation was computed. [2020-12-22 01:54:16,219 INFO L189 CegarLoopUtils]: For program point L38(line 38) no Hoare annotation was computed. [2020-12-22 01:54:16,219 INFO L189 CegarLoopUtils]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-12-22 01:54:16,219 INFO L189 CegarLoopUtils]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-12-22 01:54:16,219 INFO L189 CegarLoopUtils]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-12-22 01:54:16,219 INFO L189 CegarLoopUtils]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,219 INFO L189 CegarLoopUtils]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,220 INFO L189 CegarLoopUtils]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,220 INFO L189 CegarLoopUtils]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-12-22 01:54:16,220 INFO L189 CegarLoopUtils]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-22 01:54:16,220 INFO L189 CegarLoopUtils]: For program point L107(line 107) no Hoare annotation was computed. [2020-12-22 01:54:16,220 INFO L189 CegarLoopUtils]: For program point L41(line 41) no Hoare annotation was computed. [2020-12-22 01:54:16,220 INFO L189 CegarLoopUtils]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-12-22 01:54:16,220 INFO L189 CegarLoopUtils]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-12-22 01:54:16,220 INFO L189 CegarLoopUtils]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-12-22 01:54:16,220 INFO L189 CegarLoopUtils]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-12-22 01:54:16,221 INFO L189 CegarLoopUtils]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-12-22 01:54:16,221 INFO L189 CegarLoopUtils]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,221 INFO L189 CegarLoopUtils]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,221 INFO L189 CegarLoopUtils]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,221 INFO L189 CegarLoopUtils]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-12-22 01:54:16,222 INFO L189 CegarLoopUtils]: For program point L176(line 176) no Hoare annotation was computed. [2020-12-22 01:54:16,222 INFO L189 CegarLoopUtils]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-22 01:54:16,222 INFO L189 CegarLoopUtils]: For program point L44(line 44) no Hoare annotation was computed. [2020-12-22 01:54:16,222 INFO L189 CegarLoopUtils]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-12-22 01:54:16,222 INFO L189 CegarLoopUtils]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-12-22 01:54:16,222 INFO L189 CegarLoopUtils]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-12-22 01:54:16,222 INFO L189 CegarLoopUtils]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,222 INFO L189 CegarLoopUtils]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,223 INFO L189 CegarLoopUtils]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,223 INFO L189 CegarLoopUtils]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-12-22 01:54:16,223 INFO L189 CegarLoopUtils]: For program point L179(line 179) no Hoare annotation was computed. [2020-12-22 01:54:16,224 INFO L189 CegarLoopUtils]: For program point L113(line 113) no Hoare annotation was computed. [2020-12-22 01:54:16,224 INFO L189 CegarLoopUtils]: For program point L47(line 47) no Hoare annotation was computed. [2020-12-22 01:54:16,224 INFO L189 CegarLoopUtils]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-12-22 01:54:16,224 INFO L189 CegarLoopUtils]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-12-22 01:54:16,224 INFO L189 CegarLoopUtils]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-12-22 01:54:16,225 INFO L189 CegarLoopUtils]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-12-22 01:54:16,225 INFO L189 CegarLoopUtils]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,225 INFO L189 CegarLoopUtils]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,225 INFO L189 CegarLoopUtils]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,225 INFO L189 CegarLoopUtils]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-12-22 01:54:16,225 INFO L189 CegarLoopUtils]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-12-22 01:54:16,225 INFO L189 CegarLoopUtils]: For program point L182(line 182) no Hoare annotation was computed. [2020-12-22 01:54:16,225 INFO L189 CegarLoopUtils]: For program point L116(line 116) no Hoare annotation was computed. [2020-12-22 01:54:16,225 INFO L189 CegarLoopUtils]: For program point L50(line 50) no Hoare annotation was computed. [2020-12-22 01:54:16,225 INFO L189 CegarLoopUtils]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-12-22 01:54:16,226 INFO L189 CegarLoopUtils]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-12-22 01:54:16,226 INFO L189 CegarLoopUtils]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-12-22 01:54:16,226 INFO L189 CegarLoopUtils]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,226 INFO L189 CegarLoopUtils]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,226 INFO L189 CegarLoopUtils]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,226 INFO L189 CegarLoopUtils]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-12-22 01:54:16,226 INFO L189 CegarLoopUtils]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-22 01:54:16,226 INFO L189 CegarLoopUtils]: For program point L119(line 119) no Hoare annotation was computed. [2020-12-22 01:54:16,226 INFO L189 CegarLoopUtils]: For program point L53(line 53) no Hoare annotation was computed. [2020-12-22 01:54:16,226 INFO L189 CegarLoopUtils]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-12-22 01:54:16,226 INFO L189 CegarLoopUtils]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-12-22 01:54:16,227 INFO L189 CegarLoopUtils]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-12-22 01:54:16,227 INFO L189 CegarLoopUtils]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-12-22 01:54:16,227 INFO L189 CegarLoopUtils]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-12-22 01:54:16,227 INFO L189 CegarLoopUtils]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,227 INFO L189 CegarLoopUtils]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,227 INFO L189 CegarLoopUtils]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,228 INFO L189 CegarLoopUtils]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-12-22 01:54:16,228 INFO L189 CegarLoopUtils]: For program point L188(line 188) no Hoare annotation was computed. [2020-12-22 01:54:16,228 INFO L189 CegarLoopUtils]: For program point L122(line 122) no Hoare annotation was computed. [2020-12-22 01:54:16,228 INFO L189 CegarLoopUtils]: For program point L56(line 56) no Hoare annotation was computed. [2020-12-22 01:54:16,228 INFO L189 CegarLoopUtils]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-12-22 01:54:16,228 INFO L189 CegarLoopUtils]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-12-22 01:54:16,228 INFO L189 CegarLoopUtils]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-12-22 01:54:16,229 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 01:54:16,229 INFO L189 CegarLoopUtils]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,229 INFO L189 CegarLoopUtils]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,229 INFO L189 CegarLoopUtils]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,229 INFO L189 CegarLoopUtils]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-12-22 01:54:16,229 INFO L189 CegarLoopUtils]: For program point L191(line 191) no Hoare annotation was computed. [2020-12-22 01:54:16,229 INFO L189 CegarLoopUtils]: For program point L125(line 125) no Hoare annotation was computed. [2020-12-22 01:54:16,229 INFO L189 CegarLoopUtils]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-22 01:54:16,229 INFO L189 CegarLoopUtils]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-12-22 01:54:16,229 INFO L189 CegarLoopUtils]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-12-22 01:54:16,229 INFO L189 CegarLoopUtils]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-12-22 01:54:16,230 INFO L189 CegarLoopUtils]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-12-22 01:54:16,230 INFO L189 CegarLoopUtils]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-12-22 01:54:16,230 INFO L189 CegarLoopUtils]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,230 INFO L189 CegarLoopUtils]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,230 INFO L189 CegarLoopUtils]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,230 INFO L189 CegarLoopUtils]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-12-22 01:54:16,230 INFO L189 CegarLoopUtils]: For program point L194(line 194) no Hoare annotation was computed. [2020-12-22 01:54:16,230 INFO L189 CegarLoopUtils]: For program point L128(line 128) no Hoare annotation was computed. [2020-12-22 01:54:16,230 INFO L189 CegarLoopUtils]: For program point L62(line 62) no Hoare annotation was computed. [2020-12-22 01:54:16,230 INFO L189 CegarLoopUtils]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-12-22 01:54:16,230 INFO L189 CegarLoopUtils]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-12-22 01:54:16,230 INFO L189 CegarLoopUtils]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-12-22 01:54:16,231 INFO L189 CegarLoopUtils]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-12-22 01:54:16,231 INFO L189 CegarLoopUtils]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,231 INFO L189 CegarLoopUtils]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,231 INFO L189 CegarLoopUtils]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,231 INFO L189 CegarLoopUtils]: For program point L197(line 197) no Hoare annotation was computed. [2020-12-22 01:54:16,232 INFO L189 CegarLoopUtils]: For program point L131(line 131) no Hoare annotation was computed. [2020-12-22 01:54:16,232 INFO L189 CegarLoopUtils]: For program point L65(line 65) no Hoare annotation was computed. [2020-12-22 01:54:16,232 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 01:54:16,232 INFO L189 CegarLoopUtils]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-12-22 01:54:16,232 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 152) no Hoare annotation was computed. [2020-12-22 01:54:16,232 INFO L189 CegarLoopUtils]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-12-22 01:54:16,232 INFO L189 CegarLoopUtils]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-12-22 01:54:16,232 INFO L189 CegarLoopUtils]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-12-22 01:54:16,232 INFO L189 CegarLoopUtils]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-12-22 01:54:16,232 INFO L189 CegarLoopUtils]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,233 INFO L189 CegarLoopUtils]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,233 INFO L189 CegarLoopUtils]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,233 INFO L189 CegarLoopUtils]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-12-22 01:54:16,233 INFO L189 CegarLoopUtils]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-12-22 01:54:16,233 INFO L189 CegarLoopUtils]: For program point L200(line 200) no Hoare annotation was computed. [2020-12-22 01:54:16,233 INFO L189 CegarLoopUtils]: For program point L134(line 134) no Hoare annotation was computed. [2020-12-22 01:54:16,233 INFO L189 CegarLoopUtils]: For program point L68(line 68) no Hoare annotation was computed. [2020-12-22 01:54:16,233 INFO L189 CegarLoopUtils]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-12-22 01:54:16,233 INFO L189 CegarLoopUtils]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-12-22 01:54:16,233 INFO L189 CegarLoopUtils]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-12-22 01:54:16,233 INFO L189 CegarLoopUtils]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,234 INFO L189 CegarLoopUtils]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,234 INFO L189 CegarLoopUtils]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,234 INFO L189 CegarLoopUtils]: For program point L203(line 203) no Hoare annotation was computed. [2020-12-22 01:54:16,234 INFO L189 CegarLoopUtils]: For program point L137(line 137) no Hoare annotation was computed. [2020-12-22 01:54:16,234 INFO L189 CegarLoopUtils]: For program point L71(line 71) no Hoare annotation was computed. [2020-12-22 01:54:16,234 INFO L189 CegarLoopUtils]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-12-22 01:54:16,234 INFO L189 CegarLoopUtils]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-12-22 01:54:16,234 INFO L189 CegarLoopUtils]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-12-22 01:54:16,234 INFO L189 CegarLoopUtils]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-12-22 01:54:16,234 INFO L189 CegarLoopUtils]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-12-22 01:54:16,234 INFO L189 CegarLoopUtils]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,234 INFO L189 CegarLoopUtils]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,235 INFO L189 CegarLoopUtils]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,235 INFO L189 CegarLoopUtils]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-12-22 01:54:16,235 INFO L189 CegarLoopUtils]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-12-22 01:54:16,235 INFO L189 CegarLoopUtils]: For program point L206(line 206) no Hoare annotation was computed. [2020-12-22 01:54:16,235 INFO L189 CegarLoopUtils]: For program point L140(line 140) no Hoare annotation was computed. [2020-12-22 01:54:16,235 INFO L189 CegarLoopUtils]: For program point L74(line 74) no Hoare annotation was computed. [2020-12-22 01:54:16,235 INFO L189 CegarLoopUtils]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-12-22 01:54:16,235 INFO L189 CegarLoopUtils]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-12-22 01:54:16,235 INFO L189 CegarLoopUtils]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-12-22 01:54:16,235 INFO L189 CegarLoopUtils]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,235 INFO L189 CegarLoopUtils]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,236 INFO L189 CegarLoopUtils]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,236 INFO L189 CegarLoopUtils]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-12-22 01:54:16,236 INFO L189 CegarLoopUtils]: For program point L209(line 209) no Hoare annotation was computed. [2020-12-22 01:54:16,236 INFO L189 CegarLoopUtils]: For program point L143(line 143) no Hoare annotation was computed. [2020-12-22 01:54:16,236 INFO L189 CegarLoopUtils]: For program point L77(line 77) no Hoare annotation was computed. [2020-12-22 01:54:16,236 INFO L189 CegarLoopUtils]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-12-22 01:54:16,236 INFO L189 CegarLoopUtils]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-12-22 01:54:16,236 INFO L189 CegarLoopUtils]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-12-22 01:54:16,236 INFO L189 CegarLoopUtils]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-12-22 01:54:16,236 INFO L189 CegarLoopUtils]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,236 INFO L189 CegarLoopUtils]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,237 INFO L189 CegarLoopUtils]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,237 INFO L189 CegarLoopUtils]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-12-22 01:54:16,237 INFO L189 CegarLoopUtils]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-22 01:54:16,237 INFO L189 CegarLoopUtils]: For program point L146(line 146) no Hoare annotation was computed. [2020-12-22 01:54:16,237 INFO L189 CegarLoopUtils]: For program point L80(line 80) no Hoare annotation was computed. [2020-12-22 01:54:16,237 INFO L189 CegarLoopUtils]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-12-22 01:54:16,237 INFO L189 CegarLoopUtils]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-12-22 01:54:16,237 INFO L189 CegarLoopUtils]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-12-22 01:54:16,237 INFO L189 CegarLoopUtils]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-12-22 01:54:16,237 INFO L189 CegarLoopUtils]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,237 INFO L189 CegarLoopUtils]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,237 INFO L189 CegarLoopUtils]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-12-22 01:54:16,238 INFO L189 CegarLoopUtils]: For program point L149(line 149) no Hoare annotation was computed. [2020-12-22 01:54:16,238 INFO L189 CegarLoopUtils]: For program point L83(line 83) no Hoare annotation was computed. [2020-12-22 01:54:16,238 INFO L189 CegarLoopUtils]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-12-22 01:54:16,238 INFO L189 CegarLoopUtils]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-12-22 01:54:16,238 INFO L189 CegarLoopUtils]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-12-22 01:54:16,238 INFO L189 CegarLoopUtils]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-12-22 01:54:16,238 INFO L189 CegarLoopUtils]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-12-22 01:54:16,238 INFO L189 CegarLoopUtils]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,238 INFO L189 CegarLoopUtils]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,238 INFO L189 CegarLoopUtils]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-12-22 01:54:16,238 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 01:54:16,239 INFO L189 CegarLoopUtils]: For program point L152(line 152) no Hoare annotation was computed. [2020-12-22 01:54:16,239 INFO L189 CegarLoopUtils]: For program point L86(line 86) no Hoare annotation was computed. [2020-12-22 01:54:16,239 INFO L189 CegarLoopUtils]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-12-22 01:54:16,239 INFO L189 CegarLoopUtils]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-12-22 01:54:16,239 INFO L189 CegarLoopUtils]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-12-22 01:54:16,239 INFO L189 CegarLoopUtils]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,239 INFO L189 CegarLoopUtils]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,240 INFO L185 CegarLoopUtils]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1))) (or (and (<= ~a21~0 7) (<= ~a15~0 8)) (and .cse0 (<= 10 ~a21~0)) (and .cse0 (<= ~a12~0 80)) (and (<= 6 ~a15~0) .cse0))) [2020-12-22 01:54:16,240 INFO L189 CegarLoopUtils]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-12-22 01:54:16,240 INFO L189 CegarLoopUtils]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-12-22 01:54:16,240 INFO L189 CegarLoopUtils]: For program point L155(line 155) no Hoare annotation was computed. [2020-12-22 01:54:16,241 INFO L189 CegarLoopUtils]: For program point L89(line 89) no Hoare annotation was computed. [2020-12-22 01:54:16,241 INFO L189 CegarLoopUtils]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-12-22 01:54:16,241 INFO L189 CegarLoopUtils]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-12-22 01:54:16,241 INFO L189 CegarLoopUtils]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-12-22 01:54:16,241 INFO L189 CegarLoopUtils]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-12-22 01:54:16,241 INFO L189 CegarLoopUtils]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,241 INFO L189 CegarLoopUtils]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,241 INFO L192 CegarLoopUtils]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-12-22 01:54:16,241 INFO L189 CegarLoopUtils]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-12-22 01:54:16,241 INFO L189 CegarLoopUtils]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-12-22 01:54:16,241 INFO L189 CegarLoopUtils]: For program point L158(line 158) no Hoare annotation was computed. [2020-12-22 01:54:16,242 INFO L189 CegarLoopUtils]: For program point L92(line 92) no Hoare annotation was computed. [2020-12-22 01:54:16,242 INFO L189 CegarLoopUtils]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-12-22 01:54:16,242 INFO L189 CegarLoopUtils]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-12-22 01:54:16,242 INFO L189 CegarLoopUtils]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-12-22 01:54:16,242 INFO L189 CegarLoopUtils]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,242 INFO L189 CegarLoopUtils]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,242 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 01:54:16,242 INFO L189 CegarLoopUtils]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-12-22 01:54:16,242 INFO L189 CegarLoopUtils]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-12-22 01:54:16,242 INFO L189 CegarLoopUtils]: For program point L161(line 161) no Hoare annotation was computed. [2020-12-22 01:54:16,242 INFO L189 CegarLoopUtils]: For program point L95(line 95) no Hoare annotation was computed. [2020-12-22 01:54:16,243 INFO L189 CegarLoopUtils]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-12-22 01:54:16,243 INFO L189 CegarLoopUtils]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-12-22 01:54:16,243 INFO L189 CegarLoopUtils]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,243 INFO L189 CegarLoopUtils]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,243 INFO L189 CegarLoopUtils]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-12-22 01:54:16,243 INFO L189 CegarLoopUtils]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,243 INFO L189 CegarLoopUtils]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-12-22 01:54:16,244 INFO L185 CegarLoopUtils]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1))) (or (and (<= ~a21~0 7) (<= ~a15~0 8)) (and .cse0 (<= 10 ~a21~0)) (and .cse0 (<= ~a12~0 80)) (and (<= 6 ~a15~0) .cse0))) [2020-12-22 01:54:16,245 INFO L189 CegarLoopUtils]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-12-22 01:54:16,245 INFO L189 CegarLoopUtils]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-12-22 01:54:16,245 INFO L189 CegarLoopUtils]: For program point L164(line 164) no Hoare annotation was computed. [2020-12-22 01:54:16,245 INFO L189 CegarLoopUtils]: For program point L98(line 98) no Hoare annotation was computed. [2020-12-22 01:54:16,245 INFO L189 CegarLoopUtils]: For program point L32(line 32) no Hoare annotation was computed. [2020-12-22 01:54:16,245 INFO L189 CegarLoopUtils]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-12-22 01:54:16,245 INFO L189 CegarLoopUtils]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-12-22 01:54:16,245 INFO L189 CegarLoopUtils]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-12-22 01:54:16,245 INFO L189 CegarLoopUtils]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-12-22 01:54:16,245 INFO L189 CegarLoopUtils]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,245 INFO L189 CegarLoopUtils]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,246 INFO L189 CegarLoopUtils]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:54:16,246 INFO L189 CegarLoopUtils]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-12-22 01:54:16,246 INFO L189 CegarLoopUtils]: For program point L167(line 167) no Hoare annotation was computed. [2020-12-22 01:54:16,246 INFO L189 CegarLoopUtils]: For program point L101(line 101) no Hoare annotation was computed. [2020-12-22 01:54:16,246 INFO L189 CegarLoopUtils]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-22 01:54:16,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 01:54:16 BoogieIcfgContainer [2020-12-22 01:54:16,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 01:54:16,273 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 01:54:16,273 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 01:54:16,273 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 01:54:16,273 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:53:52" (3/4) ... [2020-12-22 01:54:16,277 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 01:54:16,311 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-22 01:54:16,313 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 01:54:16,314 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 01:54:16,316 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 01:54:16,519 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/eca-rers2012/Problem14_label16.c-witness.graphml [2020-12-22 01:54:16,520 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 01:54:16,522 INFO L168 Benchmark]: Toolchain (without parser) took 26360.84 ms. Allocated memory was 176.2 MB in the beginning and 771.8 MB in the end (delta: 595.6 MB). Free memory was 148.9 MB in the beginning and 288.0 MB in the end (delta: -139.1 MB). Peak memory consumption was 457.6 MB. Max. memory is 8.0 GB. [2020-12-22 01:54:16,522 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 176.2 MB. Free memory is still 146.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 01:54:16,523 INFO L168 Benchmark]: CACSL2BoogieTranslator took 908.97 ms. Allocated memory is still 176.2 MB. Free memory was 148.7 MB in the beginning and 149.4 MB in the end (delta: -624.8 kB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. [2020-12-22 01:54:16,524 INFO L168 Benchmark]: Boogie Procedure Inliner took 127.37 ms. Allocated memory is still 176.2 MB. Free memory was 149.4 MB in the beginning and 140.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-22 01:54:16,524 INFO L168 Benchmark]: Boogie Preprocessor took 148.63 ms. Allocated memory is still 176.2 MB. Free memory was 140.1 MB in the beginning and 133.3 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-12-22 01:54:16,524 INFO L168 Benchmark]: RCFGBuilder took 1546.57 ms. Allocated memory was 176.2 MB in the beginning and 225.4 MB in the end (delta: 49.3 MB). Free memory was 133.3 MB in the beginning and 152.6 MB in the end (delta: -19.3 MB). Peak memory consumption was 85.0 MB. Max. memory is 8.0 GB. [2020-12-22 01:54:16,525 INFO L168 Benchmark]: TraceAbstraction took 23373.43 ms. Allocated memory was 225.4 MB in the beginning and 771.8 MB in the end (delta: 546.3 MB). Free memory was 152.1 MB in the beginning and 307.4 MB in the end (delta: -155.4 MB). Peak memory consumption was 390.9 MB. Max. memory is 8.0 GB. [2020-12-22 01:54:16,525 INFO L168 Benchmark]: Witness Printer took 247.14 ms. Allocated memory is still 771.8 MB. Free memory was 307.4 MB in the beginning and 288.0 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-12-22 01:54:16,527 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 176.2 MB. Free memory is still 146.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 908.97 ms. Allocated memory is still 176.2 MB. Free memory was 148.7 MB in the beginning and 149.4 MB in the end (delta: -624.8 kB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 127.37 ms. Allocated memory is still 176.2 MB. Free memory was 149.4 MB in the beginning and 140.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 148.63 ms. Allocated memory is still 176.2 MB. Free memory was 140.1 MB in the beginning and 133.3 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1546.57 ms. Allocated memory was 176.2 MB in the beginning and 225.4 MB in the end (delta: 49.3 MB). Free memory was 133.3 MB in the beginning and 152.6 MB in the end (delta: -19.3 MB). Peak memory consumption was 85.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 23373.43 ms. Allocated memory was 225.4 MB in the beginning and 771.8 MB in the end (delta: 546.3 MB). Free memory was 152.1 MB in the beginning and 307.4 MB in the end (delta: -155.4 MB). Peak memory consumption was 390.9 MB. Max. memory is 8.0 GB. * Witness Printer took 247.14 ms. Allocated memory is still 771.8 MB. Free memory was 307.4 MB in the beginning and 288.0 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 152]: 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: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((a21 <= 7 && a15 <= 8) || (a24 == 1 && 10 <= a21)) || (a24 == 1 && a12 <= 80)) || (6 <= a15 && a24 == 1) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((a21 <= 7 && a15 <= 8) || (a24 == 1 && 10 <= a21)) || (a24 == 1 && a12 <= 80)) || (6 <= a15 && a24 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 22.9s, OverallIterations: 12, TraceHistogramMax: 6, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1175 SDtfs, 1769 SDslu, 66 SDs, 0 SdLazy, 6373 SolverSat, 1090 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2177 GetRequests, 2146 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3564occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 2670 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 55 NumberOfFragments, 59 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1830 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 310 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 6408 NumberOfCodeBlocks, 6408 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 6392 ConstructedInterpolants, 0 QuantifiedInterpolants, 10085862 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2780 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 9412/10127 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...