java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/psyco/psyco_abp_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:19:33,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:19:33,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:19:33,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:19:33,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:19:33,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:19:33,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:19:33,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:19:33,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:19:33,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:19:33,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:19:33,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:19:33,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:19:33,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:19:33,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:19:33,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:19:33,942 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:19:33,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:19:33,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:19:33,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:19:33,958 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:19:33,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:19:33,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:19:33,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:19:33,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 23:19:33,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:19:33,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:19:33,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:19:33,982 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:19:34,000 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:19:34,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:19:34,003 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:19:34,003 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:19:34,003 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:19:34,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:19:34,004 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:19:34,004 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:19:34,004 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:19:34,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:19:34,005 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:19:34,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:19:34,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:19:34,006 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:19:34,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:19:34,007 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:19:34,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:19:34,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:19:34,007 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:19:34,007 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:19:34,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:19:34,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:19:34,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:19:34,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:19:34,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:19:34,009 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:19:34,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:19:34,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:19:34,009 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:19:34,303 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:19:34,317 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:19:34,320 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:19:34,322 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:19:34,322 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:19:34,323 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_abp_1-1.c [2019-10-13 23:19:34,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/618cb2bab/fb49b27ac390456f9aa6e3bc3bb364c8/FLAG53d832605 [2019-10-13 23:19:34,980 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:19:34,981 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_abp_1-1.c [2019-10-13 23:19:35,001 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/618cb2bab/fb49b27ac390456f9aa6e3bc3bb364c8/FLAG53d832605 [2019-10-13 23:19:35,253 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/618cb2bab/fb49b27ac390456f9aa6e3bc3bb364c8 [2019-10-13 23:19:35,264 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:19:35,265 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:19:35,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:19:35,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:19:35,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:19:35,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:19:35" (1/1) ... [2019-10-13 23:19:35,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b20f996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:35, skipping insertion in model container [2019-10-13 23:19:35,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:19:35" (1/1) ... [2019-10-13 23:19:35,283 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:19:35,335 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:19:35,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:19:35,803 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:19:35,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:19:35,940 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:19:35,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:35 WrapperNode [2019-10-13 23:19:35,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:19:35,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:19:35,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:19:35,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:19:35,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:35" (1/1) ... [2019-10-13 23:19:35,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:35" (1/1) ... [2019-10-13 23:19:35,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:35" (1/1) ... [2019-10-13 23:19:35,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:35" (1/1) ... [2019-10-13 23:19:36,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:35" (1/1) ... [2019-10-13 23:19:36,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:35" (1/1) ... [2019-10-13 23:19:36,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:35" (1/1) ... [2019-10-13 23:19:36,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:19:36,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:19:36,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:19:36,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:19:36,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:35" (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 [2019-10-13 23:19:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:19:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:19:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:19:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:19:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:19:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:19:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:19:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:19:37,122 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:19:37,122 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-13 23:19:37,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:19:37 BoogieIcfgContainer [2019-10-13 23:19:37,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:19:37,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:19:37,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:19:37,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:19:37,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:19:35" (1/3) ... [2019-10-13 23:19:37,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@120652f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:19:37, skipping insertion in model container [2019-10-13 23:19:37,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:35" (2/3) ... [2019-10-13 23:19:37,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@120652f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:19:37, skipping insertion in model container [2019-10-13 23:19:37,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:19:37" (3/3) ... [2019-10-13 23:19:37,146 INFO L109 eAbstractionObserver]: Analyzing ICFG psyco_abp_1-1.c [2019-10-13 23:19:37,160 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:19:37,168 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:19:37,179 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:19:37,206 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:19:37,207 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:19:37,207 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:19:37,207 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:19:37,207 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:19:37,207 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:19:37,208 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:19:37,208 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:19:37,231 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-10-13 23:19:37,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-13 23:19:37,238 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:37,239 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:37,241 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:37,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:37,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1839617787, now seen corresponding path program 1 times [2019-10-13 23:19:37,259 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:37,260 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843302392] [2019-10-13 23:19:37,260 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:37,260 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:37,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:19:37,436 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843302392] [2019-10-13 23:19:37,437 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:37,437 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:19:37,438 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649276126] [2019-10-13 23:19:37,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:19:37,443 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:37,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:19:37,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:19:37,463 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-10-13 23:19:37,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:37,504 INFO L93 Difference]: Finished difference Result 221 states and 421 transitions. [2019-10-13 23:19:37,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:19:37,506 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-10-13 23:19:37,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:37,521 INFO L225 Difference]: With dead ends: 221 [2019-10-13 23:19:37,521 INFO L226 Difference]: Without dead ends: 108 [2019-10-13 23:19:37,526 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:19:37,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-10-13 23:19:37,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2019-10-13 23:19:37,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-10-13 23:19:37,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 178 transitions. [2019-10-13 23:19:37,581 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 178 transitions. Word has length 12 [2019-10-13 23:19:37,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:37,582 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 178 transitions. [2019-10-13 23:19:37,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:19:37,582 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 178 transitions. [2019-10-13 23:19:37,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-13 23:19:37,584 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:37,584 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:37,584 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:37,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:37,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1726064074, now seen corresponding path program 1 times [2019-10-13 23:19:37,585 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:37,585 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374015314] [2019-10-13 23:19:37,586 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:37,586 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:37,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:37,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:19:37,650 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374015314] [2019-10-13 23:19:37,650 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:37,651 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:19:37,651 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727460327] [2019-10-13 23:19:37,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:19:37,653 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:37,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:19:37,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:19:37,654 INFO L87 Difference]: Start difference. First operand 108 states and 178 transitions. Second operand 3 states. [2019-10-13 23:19:37,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:37,717 INFO L93 Difference]: Finished difference Result 214 states and 355 transitions. [2019-10-13 23:19:37,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:19:37,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-10-13 23:19:37,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:37,742 INFO L225 Difference]: With dead ends: 214 [2019-10-13 23:19:37,742 INFO L226 Difference]: Without dead ends: 111 [2019-10-13 23:19:37,744 INFO L600 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 [2019-10-13 23:19:37,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-10-13 23:19:37,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2019-10-13 23:19:37,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-10-13 23:19:37,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 181 transitions. [2019-10-13 23:19:37,763 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 181 transitions. Word has length 13 [2019-10-13 23:19:37,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:37,763 INFO L462 AbstractCegarLoop]: Abstraction has 111 states and 181 transitions. [2019-10-13 23:19:37,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:19:37,764 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 181 transitions. [2019-10-13 23:19:37,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-13 23:19:37,765 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:37,765 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:37,765 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:37,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:37,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1125989120, now seen corresponding path program 1 times [2019-10-13 23:19:37,766 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:37,766 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370362168] [2019-10-13 23:19:37,767 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:37,767 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:37,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:38,167 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 24 [2019-10-13 23:19:38,171 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:19:38,171 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370362168] [2019-10-13 23:19:38,172 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:38,172 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 23:19:38,172 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860549083] [2019-10-13 23:19:38,173 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 23:19:38,173 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:38,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 23:19:38,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:19:38,174 INFO L87 Difference]: Start difference. First operand 111 states and 181 transitions. Second operand 4 states. [2019-10-13 23:19:38,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:38,471 INFO L93 Difference]: Finished difference Result 218 states and 357 transitions. [2019-10-13 23:19:38,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:19:38,471 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-10-13 23:19:38,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:38,474 INFO L225 Difference]: With dead ends: 218 [2019-10-13 23:19:38,474 INFO L226 Difference]: Without dead ends: 194 [2019-10-13 23:19:38,475 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:19:38,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2019-10-13 23:19:38,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 180. [2019-10-13 23:19:38,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2019-10-13 23:19:38,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 294 transitions. [2019-10-13 23:19:38,490 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 294 transitions. Word has length 18 [2019-10-13 23:19:38,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:38,491 INFO L462 AbstractCegarLoop]: Abstraction has 180 states and 294 transitions. [2019-10-13 23:19:38,491 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 23:19:38,491 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 294 transitions. [2019-10-13 23:19:38,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-13 23:19:38,492 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:38,492 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:38,493 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:38,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:38,493 INFO L82 PathProgramCache]: Analyzing trace with hash -997795643, now seen corresponding path program 1 times [2019-10-13 23:19:38,493 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:38,494 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156007774] [2019-10-13 23:19:38,494 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:38,494 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:38,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:38,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:19:38,535 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156007774] [2019-10-13 23:19:38,536 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:38,536 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:19:38,536 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171897670] [2019-10-13 23:19:38,536 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:19:38,537 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:38,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:19:38,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:19:38,537 INFO L87 Difference]: Start difference. First operand 180 states and 294 transitions. Second operand 3 states. [2019-10-13 23:19:38,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:38,581 INFO L93 Difference]: Finished difference Result 306 states and 500 transitions. [2019-10-13 23:19:38,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:19:38,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-13 23:19:38,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:38,583 INFO L225 Difference]: With dead ends: 306 [2019-10-13 23:19:38,583 INFO L226 Difference]: Without dead ends: 132 [2019-10-13 23:19:38,585 INFO L600 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 [2019-10-13 23:19:38,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-10-13 23:19:38,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 130. [2019-10-13 23:19:38,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-10-13 23:19:38,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 207 transitions. [2019-10-13 23:19:38,594 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 207 transitions. Word has length 19 [2019-10-13 23:19:38,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:38,595 INFO L462 AbstractCegarLoop]: Abstraction has 130 states and 207 transitions. [2019-10-13 23:19:38,595 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:19:38,595 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 207 transitions. [2019-10-13 23:19:38,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-13 23:19:38,597 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:38,597 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:38,597 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:38,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:38,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1118288059, now seen corresponding path program 1 times [2019-10-13 23:19:38,598 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:38,598 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461614556] [2019-10-13 23:19:38,598 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:38,599 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:38,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:38,678 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:19:38,679 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461614556] [2019-10-13 23:19:38,679 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:38,679 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:19:38,679 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707716572] [2019-10-13 23:19:38,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:19:38,681 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:38,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:19:38,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:19:38,682 INFO L87 Difference]: Start difference. First operand 130 states and 207 transitions. Second operand 3 states. [2019-10-13 23:19:38,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:38,718 INFO L93 Difference]: Finished difference Result 238 states and 379 transitions. [2019-10-13 23:19:38,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:19:38,719 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-13 23:19:38,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:38,721 INFO L225 Difference]: With dead ends: 238 [2019-10-13 23:19:38,721 INFO L226 Difference]: Without dead ends: 114 [2019-10-13 23:19:38,722 INFO L600 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 [2019-10-13 23:19:38,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-10-13 23:19:38,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 112. [2019-10-13 23:19:38,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-10-13 23:19:38,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 174 transitions. [2019-10-13 23:19:38,739 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 174 transitions. Word has length 24 [2019-10-13 23:19:38,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:38,744 INFO L462 AbstractCegarLoop]: Abstraction has 112 states and 174 transitions. [2019-10-13 23:19:38,744 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:19:38,744 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 174 transitions. [2019-10-13 23:19:38,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-13 23:19:38,745 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:38,745 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:38,746 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:38,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:38,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1177986534, now seen corresponding path program 1 times [2019-10-13 23:19:38,746 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:38,747 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317111817] [2019-10-13 23:19:38,747 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:38,747 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:38,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:38,828 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:19:38,829 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317111817] [2019-10-13 23:19:38,829 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113741002] [2019-10-13 23:19:38,830 INFO L94 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 [2019-10-13 23:19:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:38,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:19:38,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:19:39,024 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:19:39,024 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:19:39,055 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:19:39,055 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [156537923] [2019-10-13 23:19:39,111 INFO L162 IcfgInterpreter]: Started Sifa with 22 locations of interest [2019-10-13 23:19:39,112 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:19:39,119 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:19:39,128 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:19:39,129 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:19:39,365 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 36 for LOIs [2019-10-13 23:19:53,179 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 22 for LOIs [2019-10-13 23:19:53,186 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-13 23:19:53,186 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-13 23:19:53,187 INFO L193 IcfgInterpreter]: Reachable states at location L24-2 satisfy 38#(and (<= 7 ~m_recv_ack_1_2~0) (<= 0 main_~q~0) (= 3 ~m_recv_ack_2~0) (= ~m_msg_1_1~0 4) (= 2 ~m_msg_2~0) (<= 3 ~m_recv_ack_2~0) (<= main_~this_buffer_empty~0 0) (<= main_~this_expect~0 0) (<= ~m_msg_1_2~0 5) (<= 6 ~m_recv_ack_1_1~0) (<= 5 ~m_msg_1_2~0) (<= 4 ~m_msg_1_1~0) (<= ~m_msg_2~0 2) (<= 0 main_~this_expect~0) (= 0 main_~this_expect~0) (<= 0 main_~this_buffer_empty~0) (= 7 ~m_recv_ack_1_2~0) (<= 1 ~m_Protocol~0) (= 1 ~m_Protocol~0) (= ~m_msg_1_2~0 5) (<= ~m_recv_ack_2~0 3) (<= ~m_recv_ack_1_1~0 6) (<= ~m_recv_ack_1_2~0 7) (<= main_~q~0 0) (<= 2 ~m_msg_2~0) (= 6 ~m_recv_ack_1_1~0) (<= ~m_Protocol~0 1) (<= ~m_msg_1_1~0 4) (= main_~q~0 0) (= main_~this_buffer_empty~0 0)) [2019-10-13 23:19:53,187 INFO L193 IcfgInterpreter]: Reachable states at location L44 satisfy 1979#(and (<= main_~P7~0 2147483647) (= ~m_recv_ack_2~0 3) (<= 0 main_~q~0) (<= 7 ~m_recv_ack_1_2~0) (= ~m_msg_1_1~0 4) (<= main_~P9~0 2147483647) (<= main_~P3~0 2147483647) (<= 3 ~m_recv_ack_2~0) (= ~m_Protocol~0 1) (<= main_~P1~0 2147483647) (<= 0 (+ main_~P3~0 2147483648)) (<= 0 (+ main_~P2~0 2147483648)) (<= main_~P2~0 2147483647) (<= 0 (+ main_~P9~0 2147483648)) (<= ~m_msg_1_2~0 5) (<= 6 ~m_recv_ack_1_1~0) (<= 0 (+ |main_#t~nondet9| 2147483648)) (<= main_~P5~0 2147483647) (<= 5 ~m_msg_1_2~0) (<= 4 ~m_msg_1_1~0) (<= ~m_msg_2~0 2) (<= 0 (+ main_~P8~0 2147483648)) (<= 0 main_~this_expect~0) (<= main_~P8~0 2147483647) (<= 0 main_~this_buffer_empty~0) (<= 1 ~m_Protocol~0) (= ~m_msg_2~0 2) (<= 0 (+ main_~P5~0 2147483648)) (= ~m_recv_ack_1_2~0 7) (= ~m_msg_1_2~0 5) (<= ~m_recv_ack_2~0 3) (<= main_~P6~0 2147483647) (= ~m_recv_ack_1_1~0 6) (<= 0 (+ main_~P7~0 2147483648)) (<= |main_#t~nondet9| 2147483647) (<= ~m_recv_ack_1_1~0 6) (<= main_~P4~0 2147483647) (<= ~m_recv_ack_1_2~0 7) (<= main_~q~0 0) (<= 0 (+ main_~P6~0 2147483648)) (<= 2 ~m_msg_2~0) (<= 0 (+ main_~P1~0 2147483648)) (<= 0 (+ main_~P4~0 2147483648)) (<= ~m_Protocol~0 1) (<= main_~this_buffer_empty~0 1) (<= ~m_msg_1_1~0 4) (<= main_~this_expect~0 1) (= main_~q~0 0)) [2019-10-13 23:19:53,187 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 2244#(and (= |old(~m_recv_ack_2~0)| ~m_recv_ack_2~0) (= |old(~m_recv_ack_1_2~0)| ~m_recv_ack_1_2~0) (= |old(~m_recv_ack_1_1~0)| ~m_recv_ack_1_1~0) (= ~m_msg_1_1~0 |old(~m_msg_1_1~0)|) (= |old(~m_msg_2~0)| ~m_msg_2~0) (= ~m_msg_1_2~0 |old(~m_msg_1_2~0)|) (= ~m_Protocol~0 |old(~m_Protocol~0)|)) [2019-10-13 23:19:53,188 INFO L193 IcfgInterpreter]: Reachable states at location L66 satisfy 2203#(and (<= main_~P7~0 2147483647) (<= 7 ~m_recv_ack_1_2~0) (= 3 ~m_recv_ack_2~0) (not (= main_~q~0 0)) (<= main_~P9~0 2147483647) (<= main_~P3~0 2147483647) (= 2 ~m_msg_2~0) (<= main_~q~0 1) (<= 3 ~m_recv_ack_2~0) (<= 0 (+ main_~P3~0 2147483648)) (<= main_~P1~0 2147483647) (<= main_~method_id~0 1) (<= 0 (+ main_~P9~0 2147483648)) (= main_~q~0 1) (<= ~m_msg_1_2~0 5) (<= main_~P5~0 2147483647) (<= 5 ~m_msg_1_2~0) (<= ~m_msg_2~0 2) (<= 0 main_~this_expect~0) (<= 1 ~m_Protocol~0) (<= 1 main_~q~0) (<= 0 (+ main_~P7~0 2147483648)) (<= ~m_recv_ack_1_1~0 6) (<= ~m_recv_ack_1_2~0 7) (<= main_~P4~0 2147483647) (<= 2 ~m_msg_2~0) (<= ~m_msg_1_1~0 4) (= main_~method_id~0 1) (<= 1 main_~this_buffer_empty~0) (= ~m_msg_1_1~0 4) (<= 1 main_~method_id~0) (<= 0 (+ main_~P2~0 2147483648)) (<= main_~P2~0 2147483647) (<= main_~this_expect~0 0) (<= 6 ~m_recv_ack_1_1~0) (<= 4 ~m_msg_1_1~0) (<= 0 (+ main_~P8~0 2147483648)) (<= main_~P8~0 2147483647) (= 0 main_~this_expect~0) (= 7 ~m_recv_ack_1_2~0) (<= 0 (+ main_~P5~0 2147483648)) (= 1 ~m_Protocol~0) (= ~m_msg_1_2~0 5) (<= main_~P6~0 2147483647) (<= ~m_recv_ack_2~0 3) (<= 0 (+ main_~P6~0 2147483648)) (= 6 ~m_recv_ack_1_1~0) (<= 0 (+ main_~P1~0 2147483648)) (= main_~this_buffer_empty~0 1) (<= 0 (+ main_~P4~0 2147483648)) (<= ~m_Protocol~0 1) (<= main_~this_buffer_empty~0 1)) [2019-10-13 23:19:53,188 INFO L193 IcfgInterpreter]: Reachable states at location L163 satisfy 1778#(or (and (<= main_~P7~0 2147483647) (<= 7 ~m_recv_ack_1_2~0) (<= 2 main_~method_id~0) (= 3 ~m_recv_ack_2~0) (not (= main_~q~0 0)) (<= main_~P9~0 2147483647) (<= main_~P3~0 2147483647) (= 2 ~m_msg_2~0) (<= 3 ~m_recv_ack_2~0) (<= 0 (+ main_~P3~0 2147483648)) (<= main_~P1~0 2147483647) (<= 0 (+ main_~P9~0 2147483648)) (<= ~m_msg_1_2~0 5) (<= 5 ~m_msg_1_2~0) (<= main_~P5~0 2147483647) (<= ~m_msg_2~0 2) (<= 1 main_~this_expect~0) (= main_~method_id~0 2) (<= 3 main_~q~0) (<= main_~method_id~0 2) (<= 1 ~m_Protocol~0) (<= 0 (+ main_~P7~0 2147483648)) (<= ~m_recv_ack_1_1~0 6) (<= main_~P4~0 2147483647) (<= ~m_recv_ack_1_2~0 7) (= 1 main_~this_expect~0) (<= 2 ~m_msg_2~0) (<= ~m_msg_1_1~0 4) (<= main_~this_expect~0 1) (= ~m_msg_1_1~0 4) (<= 0 (+ main_~P2~0 2147483648)) (<= main_~this_buffer_empty~0 0) (<= main_~P2~0 2147483647) (<= 6 ~m_recv_ack_1_1~0) (<= 4 ~m_msg_1_1~0) (<= 0 (+ main_~P8~0 2147483648)) (= main_~q~0 3) (<= main_~P8~0 2147483647) (<= main_~q~0 3) (<= 0 main_~this_buffer_empty~0) (= 7 ~m_recv_ack_1_2~0) (<= 0 (+ main_~P5~0 2147483648)) (= 1 ~m_Protocol~0) (= ~m_msg_1_2~0 5) (<= ~m_recv_ack_2~0 3) (<= main_~P6~0 2147483647) (<= 0 (+ main_~P6~0 2147483648)) (<= 0 (+ main_~P1~0 2147483648)) (= 6 ~m_recv_ack_1_1~0) (<= 0 (+ main_~P4~0 2147483648)) (<= ~m_Protocol~0 1) (= main_~this_buffer_empty~0 0) (not (= main_~q~0 1))) (and (<= main_~P7~0 2147483647) (<= 7 ~m_recv_ack_1_2~0) (<= 2 main_~method_id~0) (= 3 ~m_recv_ack_2~0) (not (= main_~q~0 0)) (<= main_~P9~0 2147483647) (<= main_~P3~0 2147483647) (= 2 ~m_msg_2~0) (<= 3 ~m_recv_ack_2~0) (<= main_~P1~0 2147483647) (<= 0 (+ main_~P3~0 2147483648)) (<= 0 (+ main_~P9~0 2147483648)) (<= ~m_msg_1_2~0 5) (<= main_~P5~0 2147483647) (<= 5 ~m_msg_1_2~0) (<= ~m_msg_2~0 2) (<= 1 main_~this_expect~0) (= main_~method_id~0 2) (<= 3 main_~q~0) (<= main_~method_id~0 2) (<= 1 ~m_Protocol~0) (<= 0 (+ main_~P7~0 2147483648)) (<= ~m_recv_ack_1_1~0 6) (<= main_~P4~0 2147483647) (<= ~m_recv_ack_1_2~0 7) (= 1 main_~this_expect~0) (<= 2 ~m_msg_2~0) (= 0 main_~this_buffer_empty~0) (<= ~m_msg_1_1~0 4) (<= main_~this_expect~0 1) (= ~m_msg_1_1~0 4) (<= 0 (+ main_~P2~0 2147483648)) (<= main_~this_buffer_empty~0 0) (<= main_~P2~0 2147483647) (<= 6 ~m_recv_ack_1_1~0) (<= 4 ~m_msg_1_1~0) (<= 0 (+ main_~P8~0 2147483648)) (= main_~q~0 3) (<= main_~P8~0 2147483647) (<= main_~q~0 3) (<= 0 main_~this_buffer_empty~0) (= 7 ~m_recv_ack_1_2~0) (<= 0 (+ main_~P5~0 2147483648)) (= 1 ~m_Protocol~0) (= (+ (- main_~this_buffer_empty~0) 1) 1) (= ~m_msg_1_2~0 5) (<= main_~P6~0 2147483647) (<= ~m_recv_ack_2~0 3) (<= 0 (+ main_~P6~0 2147483648)) (<= 0 (+ main_~P1~0 2147483648)) (= 6 ~m_recv_ack_1_1~0) (<= 0 (+ main_~P4~0 2147483648)) (<= ~m_Protocol~0 1) (not (= main_~q~0 1)))) [2019-10-13 23:19:53,188 INFO L193 IcfgInterpreter]: Reachable states at location L270 satisfy 928#(and (<= main_~P7~0 2147483647) (<= 2 main_~method_id~0) (<= 7 ~m_recv_ack_1_2~0) (<= main_~P9~0 2147483647) (<= main_~P3~0 2147483647) (<= 3 ~m_recv_ack_2~0) (= ~m_Protocol~0 1) (<= main_~P1~0 2147483647) (<= 0 (+ main_~P3~0 2147483648)) (<= 0 (+ main_~P9~0 2147483648)) (<= ~m_msg_1_2~0 5) (<= main_~P5~0 2147483647) (<= 5 ~m_msg_1_2~0) (<= ~m_msg_2~0 2) (<= 1 main_~this_expect~0) (= main_~method_id~0 2) (<= 3 main_~q~0) (<= main_~method_id~0 2) (<= 1 ~m_Protocol~0) (= ~m_recv_ack_1_2~0 7) (= ~m_recv_ack_1_1~0 6) (<= 0 (+ main_~P7~0 2147483648)) (<= ~m_recv_ack_1_1~0 6) (<= main_~P4~0 2147483647) (<= ~m_recv_ack_1_2~0 7) (<= 2 ~m_msg_2~0) (<= ~m_msg_1_1~0 4) (<= main_~this_expect~0 1) (= ~m_recv_ack_2~0 3) (= ~m_msg_1_1~0 4) (<= main_~this_buffer_empty~0 0) (<= 0 (+ main_~P2~0 2147483648)) (<= main_~P2~0 2147483647) (<= 6 ~m_recv_ack_1_1~0) (<= 4 ~m_msg_1_1~0) (<= 0 (+ main_~P8~0 2147483648)) (= main_~q~0 3) (<= main_~q~0 3) (<= main_~P8~0 2147483647) (<= 0 main_~this_buffer_empty~0) (= ~m_msg_2~0 2) (<= 0 (+ main_~P5~0 2147483648)) (= ~m_msg_1_2~0 5) (<= ~m_recv_ack_2~0 3) (<= main_~P6~0 2147483647) (<= 0 (+ main_~P6~0 2147483648)) (<= 0 (+ main_~P1~0 2147483648)) (<= 0 (+ main_~P4~0 2147483648)) (<= ~m_Protocol~0 1) (= main_~this_expect~0 1) (= main_~this_buffer_empty~0 0)) [2019-10-13 23:19:53,189 INFO L193 IcfgInterpreter]: Reachable states at location L46 satisfy 1854#(and (<= main_~P7~0 2147483647) (= ~m_recv_ack_2~0 3) (<= 0 main_~q~0) (<= 7 ~m_recv_ack_1_2~0) (= ~m_msg_1_1~0 4) (<= main_~P9~0 2147483647) (<= main_~P3~0 2147483647) (<= 3 ~m_recv_ack_2~0) (= ~m_Protocol~0 1) (<= main_~P1~0 2147483647) (<= 0 (+ main_~P3~0 2147483648)) (<= 0 (+ main_~P2~0 2147483648)) (<= main_~P2~0 2147483647) (<= 0 (+ main_~P9~0 2147483648)) (<= ~m_msg_1_2~0 5) (<= 6 ~m_recv_ack_1_1~0) (<= main_~P5~0 2147483647) (<= 5 ~m_msg_1_2~0) (<= 4 ~m_msg_1_1~0) (<= ~m_msg_2~0 2) (<= 0 (+ main_~P8~0 2147483648)) (<= 0 main_~this_expect~0) (<= main_~P8~0 2147483647) (<= 0 main_~this_buffer_empty~0) (<= 1 ~m_Protocol~0) (= ~m_msg_2~0 2) (<= 0 (+ main_~P5~0 2147483648)) (= ~m_recv_ack_1_2~0 7) (= ~m_msg_1_2~0 5) (<= ~m_recv_ack_2~0 3) (<= main_~P6~0 2147483647) (= ~m_recv_ack_1_1~0 6) (<= 0 (+ main_~P7~0 2147483648)) (<= ~m_recv_ack_1_1~0 6) (<= main_~P4~0 2147483647) (<= ~m_recv_ack_1_2~0 7) (<= main_~q~0 0) (<= 0 (+ main_~P6~0 2147483648)) (<= 2 ~m_msg_2~0) (<= 0 (+ main_~P1~0 2147483648)) (<= 0 (+ main_~P4~0 2147483648)) (<= ~m_Protocol~0 1) (<= main_~this_buffer_empty~0 1) (<= ~m_msg_1_1~0 4) (<= main_~this_expect~0 1) (= main_~q~0 0)) [2019-10-13 23:19:53,189 INFO L193 IcfgInterpreter]: Reachable states at location L38-2 satisfy 2049#(and (<= main_~P7~0 2147483647) (= ~m_recv_ack_2~0 3) (<= 0 main_~q~0) (<= 7 ~m_recv_ack_1_2~0) (= ~m_msg_1_1~0 4) (<= main_~P9~0 2147483647) (<= main_~P3~0 2147483647) (<= 3 ~m_recv_ack_2~0) (= ~m_Protocol~0 1) (<= main_~P1~0 2147483647) (<= 0 (+ main_~P3~0 2147483648)) (<= 0 (+ main_~P2~0 2147483648)) (<= main_~P2~0 2147483647) (<= 0 (+ main_~P9~0 2147483648)) (<= ~m_msg_1_2~0 5) (<= 6 ~m_recv_ack_1_1~0) (<= main_~P5~0 2147483647) (<= 5 ~m_msg_1_2~0) (<= 4 ~m_msg_1_1~0) (<= ~m_msg_2~0 2) (<= 0 (+ main_~P8~0 2147483648)) (<= 0 main_~this_expect~0) (<= main_~q~0 3) (<= main_~P8~0 2147483647) (<= 0 main_~this_buffer_empty~0) (<= 1 ~m_Protocol~0) (= ~m_msg_2~0 2) (<= 0 (+ main_~P5~0 2147483648)) (= ~m_recv_ack_1_2~0 7) (= ~m_msg_1_2~0 5) (<= ~m_recv_ack_2~0 3) (<= main_~P6~0 2147483647) (= ~m_recv_ack_1_1~0 6) (<= 0 (+ main_~P7~0 2147483648)) (<= ~m_recv_ack_1_1~0 6) (<= main_~P4~0 2147483647) (<= ~m_recv_ack_1_2~0 7) (<= 0 (+ main_~P6~0 2147483648)) (<= 2 ~m_msg_2~0) (<= 0 (+ main_~P1~0 2147483648)) (<= 0 (+ main_~P4~0 2147483648)) (<= ~m_Protocol~0 1) (<= main_~this_buffer_empty~0 1) (<= ~m_msg_1_1~0 4) (<= main_~this_expect~0 1)) [2019-10-13 23:19:53,189 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 7 ~m_recv_ack_1_2~0) (<= 7 ~m_recv_ack_1_2~0) (= 3 ~m_recv_ack_2~0) (= ~m_msg_1_1~0 4) (<= 1 ~m_Protocol~0) (= 1 ~m_Protocol~0) (= 2 ~m_msg_2~0) (= ~m_msg_1_2~0 5) (<= 3 ~m_recv_ack_2~0) (<= ~m_recv_ack_2~0 3) (<= ~m_recv_ack_1_1~0 6) (<= ~m_recv_ack_1_2~0 7) (<= 2 ~m_msg_2~0) (<= ~m_msg_1_2~0 5) (= 6 ~m_recv_ack_1_1~0) (<= 6 ~m_recv_ack_1_1~0) (<= ~m_Protocol~0 1) (<= ~m_msg_1_1~0 4) (<= 5 ~m_msg_1_2~0) (<= 4 ~m_msg_1_1~0) (<= ~m_msg_2~0 2)) [2019-10-13 23:19:53,190 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 7 ~m_recv_ack_1_2~0) (<= 7 ~m_recv_ack_1_2~0) (= 3 ~m_recv_ack_2~0) (= ~m_msg_1_1~0 4) (<= 1 ~m_Protocol~0) (= 1 ~m_Protocol~0) (= 2 ~m_msg_2~0) (= ~m_msg_1_2~0 5) (<= 3 ~m_recv_ack_2~0) (<= ~m_recv_ack_2~0 3) (<= ~m_recv_ack_1_1~0 6) (<= ~m_recv_ack_1_2~0 7) (<= 2 ~m_msg_2~0) (<= ~m_msg_1_2~0 5) (= 6 ~m_recv_ack_1_1~0) (<= 6 ~m_recv_ack_1_1~0) (<= ~m_Protocol~0 1) (<= ~m_msg_1_1~0 4) (<= 5 ~m_msg_1_2~0) (<= 4 ~m_msg_1_1~0) (<= ~m_msg_2~0 2)) [2019-10-13 23:19:53,190 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 2249#(and (= 7 ~m_recv_ack_1_2~0) (<= 7 ~m_recv_ack_1_2~0) (= 3 ~m_recv_ack_2~0) (= ~m_msg_1_1~0 4) (<= 1 ~m_Protocol~0) (= 1 ~m_Protocol~0) (= 2 ~m_msg_2~0) (= ~m_msg_1_2~0 5) (<= 3 ~m_recv_ack_2~0) (<= ~m_recv_ack_2~0 3) (<= ~m_recv_ack_1_1~0 6) (<= ~m_recv_ack_1_2~0 7) (<= 2 ~m_msg_2~0) (= 6 ~m_recv_ack_1_1~0) (<= ~m_msg_1_2~0 5) (<= 6 ~m_recv_ack_1_1~0) (<= ~m_Protocol~0 1) (<= ~m_msg_1_1~0 4) (<= 5 ~m_msg_1_2~0) (<= 4 ~m_msg_1_1~0) (<= ~m_msg_2~0 2)) [2019-10-13 23:19:53,190 INFO L193 IcfgInterpreter]: Reachable states at location L70 satisfy 2161#(and (<= 2 main_~method_id~0) (<= main_~q~0 1) (<= main_~this_expect~0 0) (<= 0 main_~this_expect~0) (<= main_~method_id~0 2) (<= 1 main_~q~0) (or (and (<= main_~P7~0 2147483647) (<= 7 ~m_recv_ack_1_2~0) (= 3 ~m_recv_ack_2~0) (= ~m_msg_1_1~0 4) (not (= main_~q~0 0)) (<= main_~P9~0 2147483647) (<= main_~P3~0 2147483647) (= 2 ~m_msg_2~0) (<= 3 ~m_recv_ack_2~0) (<= 0 (+ main_~P2~0 2147483648)) (<= 0 (+ main_~P3~0 2147483648)) (<= main_~P1~0 2147483647) (<= main_~P2~0 2147483647) (<= 0 (+ main_~P9~0 2147483648)) (= main_~q~0 1) (<= ~m_msg_1_2~0 5) (<= 6 ~m_recv_ack_1_1~0) (<= main_~P5~0 2147483647) (<= 5 ~m_msg_1_2~0) (<= 4 ~m_msg_1_1~0) (<= 0 (+ main_~P8~0 2147483648)) (<= ~m_msg_2~0 2) (<= main_~P8~0 2147483647) (= main_~method_id~0 2) (= 0 main_~this_expect~0) (= 7 ~m_recv_ack_1_2~0) (<= 1 ~m_Protocol~0) (<= 0 (+ main_~P5~0 2147483648)) (= 1 ~m_Protocol~0) (= (mod main_~P1~0 2) 0) (= ~m_msg_1_2~0 5) (= 6 ~m_recv_ack_1_1~0) (= main_~this_buffer_empty~0 1)) (and (<= main_~P7~0 2147483647) (<= 7 ~m_recv_ack_1_2~0) (= 3 ~m_recv_ack_2~0) (= ~m_msg_1_1~0 4) (not (= main_~q~0 0)) (<= main_~P9~0 2147483647) (<= main_~P3~0 2147483647) (= 2 ~m_msg_2~0) (= 0 (+ (mod main_~P1~0 2) (- 2))) (<= 3 ~m_recv_ack_2~0) (<= 0 (+ main_~P2~0 2147483648)) (<= 0 (+ main_~P3~0 2147483648)) (<= main_~P1~0 2147483647) (<= main_~P2~0 2147483647) (<= 0 (+ main_~P9~0 2147483648)) (= main_~q~0 1) (<= ~m_msg_1_2~0 5) (<= 6 ~m_recv_ack_1_1~0) (< main_~P1~0 0) (<= main_~P5~0 2147483647) (<= 5 ~m_msg_1_2~0) (<= 4 ~m_msg_1_1~0) (<= 0 (+ main_~P8~0 2147483648)) (<= ~m_msg_2~0 2) (<= main_~P8~0 2147483647) (= main_~method_id~0 2) (= 0 main_~this_expect~0) (= 7 ~m_recv_ack_1_2~0) (<= 1 ~m_Protocol~0) (<= 0 (+ main_~P5~0 2147483648)) (= 1 ~m_Protocol~0) (= ~m_msg_1_2~0 5) (= 6 ~m_recv_ack_1_1~0) (= main_~this_buffer_empty~0 1))) (<= ~m_recv_ack_2~0 3) (<= main_~P6~0 2147483647) (<= 0 (+ main_~P7~0 2147483648)) (<= ~m_recv_ack_1_1~0 6) (<= main_~P4~0 2147483647) (<= ~m_recv_ack_1_2~0 7) (<= 0 (+ main_~P6~0 2147483648)) (<= 2 ~m_msg_2~0) (<= 0 (+ main_~P1~0 2147483648)) (<= 0 (+ main_~P4~0 2147483648)) (<= ~m_Protocol~0 1) (<= main_~this_buffer_empty~0 1) (<= ~m_msg_1_1~0 4) (<= 1 main_~this_buffer_empty~0)) [2019-10-13 23:19:53,190 INFO L193 IcfgInterpreter]: Reachable states at location L561 satisfy 2114#(and (= ~m_recv_ack_2~0 3) (<= 7 ~m_recv_ack_1_2~0) (<= 0 main_~q~0) (= ~m_msg_1_1~0 4) (<= 3 ~m_recv_ack_2~0) (= ~m_Protocol~0 1) (<= ~m_msg_1_2~0 5) (<= 6 ~m_recv_ack_1_1~0) (<= 5 ~m_msg_1_2~0) (<= 4 ~m_msg_1_1~0) (<= ~m_msg_2~0 2) (<= 0 main_~this_expect~0) (<= main_~q~0 3) (<= 0 main_~this_buffer_empty~0) (<= 1 ~m_Protocol~0) (= ~m_msg_2~0 2) (= ~m_recv_ack_1_2~0 7) (= ~m_msg_1_2~0 5) (<= ~m_recv_ack_2~0 3) (= ~m_recv_ack_1_1~0 6) (<= ~m_recv_ack_1_1~0 6) (<= ~m_recv_ack_1_2~0 7) (<= 2 ~m_msg_2~0) (<= ~m_Protocol~0 1) (<= main_~this_buffer_empty~0 1) (<= ~m_msg_1_1~0 4) (<= main_~this_expect~0 1)) [2019-10-13 23:19:53,191 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-13 23:19:53,191 INFO L193 IcfgInterpreter]: Reachable states at location L263 satisfy 1567#(and (or (and (<= main_~P7~0 2147483647) (<= 2 main_~method_id~0) (<= 7 ~m_recv_ack_1_2~0) (= 3 ~m_recv_ack_2~0) (not (= main_~q~0 0)) (<= main_~P9~0 2147483647) (<= main_~P3~0 2147483647) (= 2 ~m_msg_2~0) (<= 3 ~m_recv_ack_2~0) (<= main_~P1~0 2147483647) (<= 0 (+ main_~P3~0 2147483648)) (<= 0 (+ main_~P9~0 2147483648)) (<= ~m_msg_1_2~0 5) (<= main_~P5~0 2147483647) (<= 5 ~m_msg_1_2~0) (<= ~m_msg_2~0 2) (<= 1 main_~this_expect~0) (= main_~method_id~0 2) (<= 3 main_~q~0) (<= main_~method_id~0 2) (<= 1 ~m_Protocol~0) (= 1 main_~this_expect~0) (= 0 main_~this_buffer_empty~0) (= ~m_msg_1_1~0 4) (<= main_~this_buffer_empty~0 0) (<= 0 (+ main_~P2~0 2147483648)) (<= main_~P2~0 2147483647) (not (= main_~q~0 2)) (<= 6 ~m_recv_ack_1_1~0) (<= 4 ~m_msg_1_1~0) (<= 0 (+ main_~P8~0 2147483648)) (= main_~q~0 3) (<= main_~q~0 3) (<= main_~P8~0 2147483647) (<= 0 main_~this_buffer_empty~0) (= 7 ~m_recv_ack_1_2~0) (<= 0 (+ main_~P5~0 2147483648)) (= 1 ~m_Protocol~0) (= (+ (- main_~this_buffer_empty~0) 1) 1) (= ~m_msg_1_2~0 5) (= 6 ~m_recv_ack_1_1~0) (not (= main_~q~0 1))) (and (<= main_~P7~0 2147483647) (<= 7 ~m_recv_ack_1_2~0) (<= 2 main_~method_id~0) (= 3 ~m_recv_ack_2~0) (not (= main_~q~0 0)) (<= main_~P9~0 2147483647) (<= main_~P3~0 2147483647) (= 2 ~m_msg_2~0) (<= 3 ~m_recv_ack_2~0) (<= main_~P1~0 2147483647) (<= 0 (+ main_~P3~0 2147483648)) (<= 0 (+ main_~P9~0 2147483648)) (<= ~m_msg_1_2~0 5) (<= main_~P5~0 2147483647) (<= 5 ~m_msg_1_2~0) (<= ~m_msg_2~0 2) (<= 1 main_~this_expect~0) (= main_~method_id~0 2) (<= 3 main_~q~0) (<= main_~method_id~0 2) (<= 1 ~m_Protocol~0) (= 1 main_~this_expect~0) (= ~m_msg_1_1~0 4) (<= 0 (+ main_~P2~0 2147483648)) (<= main_~this_buffer_empty~0 0) (<= main_~P2~0 2147483647) (not (= main_~q~0 2)) (<= 6 ~m_recv_ack_1_1~0) (<= 4 ~m_msg_1_1~0) (<= 0 (+ main_~P8~0 2147483648)) (= main_~q~0 3) (<= main_~P8~0 2147483647) (<= main_~q~0 3) (<= 0 main_~this_buffer_empty~0) (= 7 ~m_recv_ack_1_2~0) (<= 0 (+ main_~P5~0 2147483648)) (= 1 ~m_Protocol~0) (= ~m_msg_1_2~0 5) (= 6 ~m_recv_ack_1_1~0) (= main_~this_buffer_empty~0 0) (not (= main_~q~0 1)))) (<= ~m_recv_ack_2~0 3) (<= main_~P6~0 2147483647) (<= 0 (+ main_~P7~0 2147483648)) (<= ~m_recv_ack_1_1~0 6) (<= main_~P4~0 2147483647) (<= ~m_recv_ack_1_2~0 7) (<= 0 (+ main_~P6~0 2147483648)) (<= 2 ~m_msg_2~0) (<= 0 (+ main_~P1~0 2147483648)) (<= 0 (+ main_~P4~0 2147483648)) (<= ~m_Protocol~0 1) (<= ~m_msg_1_1~0 4) (<= main_~this_expect~0 1)) [2019-10-13 23:19:53,191 INFO L193 IcfgInterpreter]: Reachable states at location L551 satisfy 541#false [2019-10-13 23:19:53,191 INFO L193 IcfgInterpreter]: Reachable states at location L50 satisfy 1875#(and (or (and (= ~m_Protocol~0 1) (= ~m_recv_ack_1_2~0 7) (= ~m_recv_ack_1_1~0 6) (= main_~method_id~0 1) (= ~m_recv_ack_2~0 3) (= ~m_msg_1_1~0 4) (= ~m_msg_2~0 2) (= ~m_msg_1_2~0 5) (= main_~q~0 0) (= main_~this_buffer_empty~0 0)) (and (= 3 ~m_recv_ack_2~0) (= ~m_msg_1_1~0 4) (= 2 ~m_msg_2~0) (= main_~q~0 3) (= 7 ~m_recv_ack_1_2~0) (= 1 ~m_Protocol~0) (= ~m_msg_1_2~0 5) (= 1 main_~this_expect~0) (= 6 ~m_recv_ack_1_1~0) (= main_~method_id~0 1) (= main_~q~0 0) (= main_~this_buffer_empty~0 0))) (<= main_~P7~0 2147483647) (<= 0 main_~q~0) (<= 7 ~m_recv_ack_1_2~0) (<= main_~P9~0 2147483647) (<= main_~P3~0 2147483647) (<= 1 main_~method_id~0) (<= 3 ~m_recv_ack_2~0) (<= main_~this_buffer_empty~0 0) (<= main_~P1~0 2147483647) (<= 0 (+ main_~P3~0 2147483648)) (<= 0 (+ main_~P2~0 2147483648)) (<= main_~method_id~0 1) (<= main_~P2~0 2147483647) (<= 0 (+ main_~P9~0 2147483648)) (<= main_~this_expect~0 0) (<= ~m_msg_1_2~0 5) (<= 6 ~m_recv_ack_1_1~0) (<= main_~P5~0 2147483647) (<= 5 ~m_msg_1_2~0) (<= 4 ~m_msg_1_1~0) (<= ~m_msg_2~0 2) (<= 0 (+ main_~P8~0 2147483648)) (<= 0 main_~this_expect~0) (<= main_~P8~0 2147483647) (<= 0 main_~this_buffer_empty~0) (<= 1 ~m_Protocol~0) (<= 0 (+ main_~P5~0 2147483648)) (<= ~m_recv_ack_2~0 3) (<= main_~P6~0 2147483647) (<= 0 (+ main_~P7~0 2147483648)) (<= ~m_recv_ack_1_1~0 6) (<= main_~P4~0 2147483647) (<= ~m_recv_ack_1_2~0 7) (<= main_~q~0 0) (<= 0 (+ main_~P6~0 2147483648)) (<= 2 ~m_msg_2~0) (<= 0 (+ main_~P1~0 2147483648)) (<= 0 (+ main_~P4~0 2147483648)) (<= ~m_Protocol~0 1) (<= ~m_msg_1_1~0 4)) [2019-10-13 23:19:53,192 INFO L193 IcfgInterpreter]: Reachable states at location L264 satisfy 1211#(and (or (and (<= main_~P7~0 2147483647) (<= 7 ~m_recv_ack_1_2~0) (<= 2 main_~method_id~0) (= 3 ~m_recv_ack_2~0) (<= 0 (+ |main_#t~nondet22| 2147483648)) (not (= main_~q~0 0)) (<= main_~P9~0 2147483647) (<= main_~P3~0 2147483647) (= 2 ~m_msg_2~0) (<= 3 ~m_recv_ack_2~0) (<= main_~P1~0 2147483647) (<= 0 (+ main_~P3~0 2147483648)) (<= 0 (+ main_~P9~0 2147483648)) (<= ~m_msg_1_2~0 5) (<= main_~P5~0 2147483647) (<= 5 ~m_msg_1_2~0) (<= ~m_msg_2~0 2) (<= 1 main_~this_expect~0) (= main_~method_id~0 2) (= 1 main_~this_expect~0) (= ~m_msg_1_1~0 4) (<= main_~this_buffer_empty~0 0) (<= 0 (+ main_~P2~0 2147483648)) (<= main_~P2~0 2147483647) (not (= main_~q~0 2)) (<= 6 ~m_recv_ack_1_1~0) (<= 4 ~m_msg_1_1~0) (<= 0 (+ main_~P8~0 2147483648)) (= main_~q~0 3) (<= main_~q~0 3) (<= main_~P8~0 2147483647) (= 7 ~m_recv_ack_1_2~0) (= 1 ~m_Protocol~0) (= ~m_msg_1_2~0 5) (= 6 ~m_recv_ack_1_1~0) (= main_~this_buffer_empty~0 0) (not (= main_~q~0 1))) (and (<= main_~P7~0 2147483647) (<= 7 ~m_recv_ack_1_2~0) (<= 2 main_~method_id~0) (= 3 ~m_recv_ack_2~0) (<= 0 (+ |main_#t~nondet22| 2147483648)) (not (= main_~q~0 0)) (<= main_~P9~0 2147483647) (<= main_~P3~0 2147483647) (= 2 ~m_msg_2~0) (<= 3 ~m_recv_ack_2~0) (<= main_~P1~0 2147483647) (<= 0 (+ main_~P3~0 2147483648)) (<= 0 (+ main_~P9~0 2147483648)) (<= ~m_msg_1_2~0 5) (<= main_~P5~0 2147483647) (<= 5 ~m_msg_1_2~0) (<= ~m_msg_2~0 2) (<= 1 main_~this_expect~0) (= main_~method_id~0 2) (= 1 main_~this_expect~0) (= 0 main_~this_buffer_empty~0) (= ~m_msg_1_1~0 4) (<= 0 (+ main_~P2~0 2147483648)) (<= main_~this_buffer_empty~0 0) (<= main_~P2~0 2147483647) (not (= main_~q~0 2)) (<= 6 ~m_recv_ack_1_1~0) (<= 4 ~m_msg_1_1~0) (<= 0 (+ main_~P8~0 2147483648)) (= main_~q~0 3) (<= main_~P8~0 2147483647) (<= main_~q~0 3) (= 7 ~m_recv_ack_1_2~0) (= 1 ~m_Protocol~0) (= (+ (- main_~this_buffer_empty~0) 1) 1) (= ~m_msg_1_2~0 5) (= 6 ~m_recv_ack_1_1~0) (not (= main_~q~0 1)))) (<= 0 main_~this_buffer_empty~0) (<= 3 main_~q~0) (<= main_~method_id~0 2) (<= 1 ~m_Protocol~0) (<= |main_#t~nondet22| 2147483647) (<= 0 (+ main_~P5~0 2147483648)) (<= ~m_recv_ack_2~0 3) (<= main_~P6~0 2147483647) (<= 0 (+ main_~P7~0 2147483648)) (<= ~m_recv_ack_1_1~0 6) (<= main_~P4~0 2147483647) (<= ~m_recv_ack_1_2~0 7) (<= 0 (+ main_~P6~0 2147483648)) (<= 2 ~m_msg_2~0) (<= 0 (+ main_~P1~0 2147483648)) (<= 0 (+ main_~P4~0 2147483648)) (<= ~m_Protocol~0 1) (<= ~m_msg_1_1~0 4) (<= main_~this_expect~0 1)) [2019-10-13 23:19:53,192 INFO L193 IcfgInterpreter]: Reachable states at location L63 satisfy 1901#(and (<= main_~P7~0 2147483647) (= ~m_recv_ack_2~0 3) (<= 7 ~m_recv_ack_1_2~0) (= ~m_msg_1_1~0 4) (<= main_~P9~0 2147483647) (<= main_~P3~0 2147483647) (<= 1 main_~method_id~0) (<= 3 ~m_recv_ack_2~0) (= ~m_Protocol~0 1) (<= main_~P1~0 2147483647) (<= 0 (+ main_~P3~0 2147483648)) (<= 0 (+ main_~P2~0 2147483648)) (<= main_~P2~0 2147483647) (<= 0 (+ main_~P9~0 2147483648)) (<= ~m_msg_1_2~0 5) (<= 6 ~m_recv_ack_1_1~0) (<= main_~P5~0 2147483647) (<= 5 ~m_msg_1_2~0) (<= 4 ~m_msg_1_1~0) (<= ~m_msg_2~0 2) (<= 0 (+ main_~P8~0 2147483648)) (<= 0 main_~this_expect~0) (<= main_~q~0 3) (<= main_~P8~0 2147483647) (<= 0 main_~this_buffer_empty~0) (<= main_~method_id~0 2) (<= 1 ~m_Protocol~0) (= ~m_msg_2~0 2) (<= 0 (+ main_~P5~0 2147483648)) (= ~m_recv_ack_1_2~0 7) (<= 1 main_~q~0) (= ~m_msg_1_2~0 5) (<= ~m_recv_ack_2~0 3) (<= main_~P6~0 2147483647) (= ~m_recv_ack_1_1~0 6) (<= 0 (+ main_~P7~0 2147483648)) (<= ~m_recv_ack_1_1~0 6) (<= main_~P4~0 2147483647) (<= ~m_recv_ack_1_2~0 7) (<= 0 (+ main_~P6~0 2147483648)) (<= 2 ~m_msg_2~0) (<= 0 (+ main_~P1~0 2147483648)) (<= 0 (+ main_~P4~0 2147483648)) (<= ~m_Protocol~0 1) (<= main_~this_buffer_empty~0 1) (<= ~m_msg_1_1~0 4) (<= main_~this_expect~0 1)) [2019-10-13 23:19:53,197 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 260#false [2019-10-13 23:19:53,198 INFO L193 IcfgInterpreter]: Reachable states at location L266 satisfy 1075#(or (and (<= main_~P7~0 2147483647) (<= 7 ~m_recv_ack_1_2~0) (<= 2 main_~method_id~0) (= 3 ~m_recv_ack_2~0) (not (= main_~q~0 0)) (<= main_~P9~0 2147483647) (<= main_~P3~0 2147483647) (= 2 ~m_msg_2~0) (<= 3 ~m_recv_ack_2~0) (<= 0 (+ main_~P3~0 2147483648)) (<= main_~P1~0 2147483647) (<= 0 (+ main_~P9~0 2147483648)) (<= ~m_msg_1_2~0 5) (<= main_~P5~0 2147483647) (<= 5 ~m_msg_1_2~0) (<= ~m_msg_2~0 2) (<= 1 main_~this_expect~0) (= main_~method_id~0 2) (<= 3 main_~q~0) (<= main_~method_id~0 2) (<= 1 ~m_Protocol~0) (<= 0 (+ main_~P7~0 2147483648)) (<= ~m_recv_ack_1_1~0 6) (<= main_~P4~0 2147483647) (<= ~m_recv_ack_1_2~0 7) (= 1 main_~this_expect~0) (<= 2 ~m_msg_2~0) (= 0 main_~this_buffer_empty~0) (<= ~m_msg_1_1~0 4) (<= main_~this_expect~0 1) (= ~m_msg_1_1~0 4) (<= 0 (+ main_~P2~0 2147483648)) (<= main_~this_buffer_empty~0 0) (<= main_~P2~0 2147483647) (not (= main_~q~0 2)) (<= 6 ~m_recv_ack_1_1~0) (<= 4 ~m_msg_1_1~0) (<= 0 (+ main_~P8~0 2147483648)) (= main_~q~0 3) (<= main_~q~0 3) (<= main_~P8~0 2147483647) (<= 0 main_~this_buffer_empty~0) (= 7 ~m_recv_ack_1_2~0) (<= 0 (+ main_~P5~0 2147483648)) (= 1 ~m_Protocol~0) (= (+ (- main_~this_buffer_empty~0) 1) 1) (= ~m_msg_1_2~0 5) (<= ~m_recv_ack_2~0 3) (<= main_~P6~0 2147483647) (<= 0 (+ main_~P6~0 2147483648)) (= 6 ~m_recv_ack_1_1~0) (<= 0 (+ main_~P1~0 2147483648)) (<= 0 (+ main_~P4~0 2147483648)) (<= ~m_Protocol~0 1) (not (= main_~q~0 1))) (and (<= main_~P7~0 2147483647) (<= 7 ~m_recv_ack_1_2~0) (<= 2 main_~method_id~0) (= 3 ~m_recv_ack_2~0) (not (= main_~q~0 0)) (<= main_~P9~0 2147483647) (<= main_~P3~0 2147483647) (= 2 ~m_msg_2~0) (<= 3 ~m_recv_ack_2~0) (<= 0 (+ main_~P3~0 2147483648)) (<= main_~P1~0 2147483647) (<= 0 (+ main_~P9~0 2147483648)) (<= ~m_msg_1_2~0 5) (<= main_~P5~0 2147483647) (<= 5 ~m_msg_1_2~0) (<= ~m_msg_2~0 2) (<= 1 main_~this_expect~0) (= main_~method_id~0 2) (<= 3 main_~q~0) (<= main_~method_id~0 2) (<= 1 ~m_Protocol~0) (<= 0 (+ main_~P7~0 2147483648)) (<= ~m_recv_ack_1_1~0 6) (<= main_~P4~0 2147483647) (<= ~m_recv_ack_1_2~0 7) (= 1 main_~this_expect~0) (<= 2 ~m_msg_2~0) (<= ~m_msg_1_1~0 4) (<= main_~this_expect~0 1) (= ~m_msg_1_1~0 4) (<= 0 (+ main_~P2~0 2147483648)) (<= main_~this_buffer_empty~0 0) (<= main_~P2~0 2147483647) (not (= main_~q~0 2)) (<= 6 ~m_recv_ack_1_1~0) (<= 4 ~m_msg_1_1~0) (<= 0 (+ main_~P8~0 2147483648)) (= main_~q~0 3) (<= main_~q~0 3) (<= main_~P8~0 2147483647) (<= 0 main_~this_buffer_empty~0) (= 7 ~m_recv_ack_1_2~0) (<= 0 (+ main_~P5~0 2147483648)) (= 1 ~m_Protocol~0) (= ~m_msg_1_2~0 5) (<= ~m_recv_ack_2~0 3) (<= main_~P6~0 2147483647) (<= 0 (+ main_~P6~0 2147483648)) (= 6 ~m_recv_ack_1_1~0) (<= 0 (+ main_~P1~0 2147483648)) (<= 0 (+ main_~P4~0 2147483648)) (<= ~m_Protocol~0 1) (= main_~this_buffer_empty~0 0) (not (= main_~q~0 1)))) [2019-10-13 23:19:53,200 INFO L193 IcfgInterpreter]: Reachable states at location L64 satisfy 2240#(and (<= main_~P7~0 2147483647) (<= 7 ~m_recv_ack_1_2~0) (= 3 ~m_recv_ack_2~0) (not (= main_~q~0 0)) (<= main_~P9~0 2147483647) (<= main_~P3~0 2147483647) (= 2 ~m_msg_2~0) (<= main_~q~0 1) (<= 3 ~m_recv_ack_2~0) (<= 0 (+ main_~P3~0 2147483648)) (<= main_~P1~0 2147483647) (<= main_~method_id~0 1) (<= 0 (+ main_~P9~0 2147483648)) (= main_~q~0 1) (<= ~m_msg_1_2~0 5) (<= main_~P5~0 2147483647) (<= 5 ~m_msg_1_2~0) (<= ~m_msg_2~0 2) (<= 0 main_~this_expect~0) (<= 1 ~m_Protocol~0) (<= 1 main_~q~0) (<= 0 (+ main_~P7~0 2147483648)) (<= ~m_recv_ack_1_1~0 6) (<= ~m_recv_ack_1_2~0 7) (<= main_~P4~0 2147483647) (<= 2 ~m_msg_2~0) (<= ~m_msg_1_1~0 4) (= main_~method_id~0 1) (<= 1 main_~this_buffer_empty~0) (= ~m_msg_1_1~0 4) (<= 1 main_~method_id~0) (<= 0 (+ main_~P2~0 2147483648)) (<= main_~P2~0 2147483647) (<= main_~this_expect~0 0) (<= 6 ~m_recv_ack_1_1~0) (<= 4 ~m_msg_1_1~0) (<= 0 (+ main_~P8~0 2147483648)) (<= main_~P8~0 2147483647) (= 0 main_~this_expect~0) (= 7 ~m_recv_ack_1_2~0) (<= 0 (+ main_~P5~0 2147483648)) (= 1 ~m_Protocol~0) (= ~m_msg_1_2~0 5) (<= main_~P6~0 2147483647) (<= ~m_recv_ack_2~0 3) (<= |main_#t~nondet10| 2147483647) (<= 0 (+ |main_#t~nondet10| 2147483648)) (<= 0 (+ main_~P6~0 2147483648)) (= 6 ~m_recv_ack_1_1~0) (<= 0 (+ main_~P1~0 2147483648)) (= main_~this_buffer_empty~0 1) (<= 0 (+ main_~P4~0 2147483648)) (<= ~m_Protocol~0 1) (<= main_~this_buffer_empty~0 1)) [2019-10-13 23:19:53,738 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2019-10-13 23:19:54,057 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2019-10-13 23:19:54,392 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2019-10-13 23:19:54,678 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 71 [2019-10-13 23:19:55,120 WARN L191 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2019-10-13 23:19:55,509 WARN L191 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 75 [2019-10-13 23:19:55,780 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 71 [2019-10-13 23:19:56,142 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 72 [2019-10-13 23:19:56,590 WARN L191 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 72 [2019-10-13 23:19:57,035 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 75 [2019-10-13 23:19:57,149 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 23:19:57,149 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [4, 4, 4] total 19 [2019-10-13 23:19:57,150 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662698639] [2019-10-13 23:19:57,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 23:19:57,152 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:57,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 23:19:57,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2019-10-13 23:19:57,153 INFO L87 Difference]: Start difference. First operand 112 states and 174 transitions. Second operand 16 states. [2019-10-13 23:19:57,583 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-10-13 23:19:57,877 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2019-10-13 23:19:58,039 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-10-13 23:19:58,180 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-10-13 23:19:58,351 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-10-13 23:19:58,545 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-10-13 23:19:58,734 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-10-13 23:19:59,036 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-10-13 23:19:59,298 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-10-13 23:19:59,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:59,985 INFO L93 Difference]: Finished difference Result 223 states and 352 transitions. [2019-10-13 23:19:59,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:19:59,986 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 26 [2019-10-13 23:19:59,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:59,987 INFO L225 Difference]: With dead ends: 223 [2019-10-13 23:19:59,988 INFO L226 Difference]: Without dead ends: 135 [2019-10-13 23:19:59,989 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 57 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=209, Invalid=661, Unknown=0, NotChecked=0, Total=870 [2019-10-13 23:19:59,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-10-13 23:19:59,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 129. [2019-10-13 23:19:59,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-10-13 23:19:59,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 200 transitions. [2019-10-13 23:19:59,996 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 200 transitions. Word has length 26 [2019-10-13 23:19:59,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:59,997 INFO L462 AbstractCegarLoop]: Abstraction has 129 states and 200 transitions. [2019-10-13 23:19:59,997 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 23:19:59,997 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 200 transitions. [2019-10-13 23:19:59,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-13 23:19:59,998 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:59,998 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:20:00,203 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:20:00,204 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:20:00,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:20:00,205 INFO L82 PathProgramCache]: Analyzing trace with hash -2125679555, now seen corresponding path program 1 times [2019-10-13 23:20:00,205 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:20:00,205 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765020855] [2019-10-13 23:20:00,205 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:20:00,206 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:20:00,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:20:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:20:00,361 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:20:00,361 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765020855] [2019-10-13 23:20:00,362 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22945947] [2019-10-13 23:20:00,362 INFO L94 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 [2019-10-13 23:20:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:20:00,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-13 23:20:00,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:20:00,546 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:20:00,546 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:20:00,655 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:20:00,655 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1634310255] [2019-10-13 23:20:00,657 INFO L162 IcfgInterpreter]: Started Sifa with 23 locations of interest [2019-10-13 23:20:00,658 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:20:00,658 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:20:00,658 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:20:00,659 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:20:00,713 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 36 for LOIs