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 -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label00.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 22:00:55,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 22:00:55,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 22:00:55,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-14 22:00:55,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 22:00:55,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 22:00:55,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 22:00:55,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 22:00:55,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 22:00:55,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 22:00:55,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 22:00:55,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 22:00:55,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 22:00:55,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 22:00:55,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 22:00:55,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 22:00:55,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 22:00:55,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 22:00:55,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 22:00:55,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 22:00:55,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 22:00:55,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 22:00:55,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 22:00:55,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 22:00:55,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 22:00:55,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 22:00:55,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 22:00:55,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 22:00:55,182 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 [2019-10-14 22:00:55,196 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 22:00:55,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 22:00:55,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 22:00:55,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 22:00:55,197 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 22:00:55,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 22:00:55,198 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 22:00:55,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 22:00:55,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 22:00:55,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 22:00:55,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 22:00:55,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 22:00:55,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 22:00:55,199 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 22:00:55,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 22:00:55,200 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 22:00:55,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 22:00:55,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 22:00:55,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 22:00:55,200 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 22:00:55,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 22:00:55,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 22:00:55,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 22:00:55,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 22:00:55,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 22:00:55,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 22:00:55,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 22:00:55,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 22:00:55,202 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 22:00:55,519 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 22:00:55,535 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 22:00:55,538 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 22:00:55,540 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 22:00:55,540 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 22:00:55,541 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label00.c [2019-10-14 22:00:55,599 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abc833df5/7a0c0cec524142fe82ae5af3128ab148/FLAGad65d18b8 [2019-10-14 22:00:56,214 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 22:00:56,215 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label00.c [2019-10-14 22:00:56,236 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abc833df5/7a0c0cec524142fe82ae5af3128ab148/FLAGad65d18b8 [2019-10-14 22:00:56,360 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abc833df5/7a0c0cec524142fe82ae5af3128ab148 [2019-10-14 22:00:56,370 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 22:00:56,372 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 22:00:56,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 22:00:56,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 22:00:56,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 22:00:56,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:00:56" (1/1) ... [2019-10-14 22:00:56,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@654cfaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:56, skipping insertion in model container [2019-10-14 22:00:56,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:00:56" (1/1) ... [2019-10-14 22:00:56,389 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 22:00:56,448 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 22:00:56,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 22:00:56,925 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 22:00:57,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 22:00:57,228 INFO L192 MainTranslator]: Completed translation [2019-10-14 22:00:57,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:57 WrapperNode [2019-10-14 22:00:57,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 22:00:57,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 22:00:57,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 22:00:57,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 22:00:57,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:57" (1/1) ... [2019-10-14 22:00:57,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:57" (1/1) ... [2019-10-14 22:00:57,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:57" (1/1) ... [2019-10-14 22:00:57,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:57" (1/1) ... [2019-10-14 22:00:57,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:57" (1/1) ... [2019-10-14 22:00:57,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:57" (1/1) ... [2019-10-14 22:00:57,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:57" (1/1) ... [2019-10-14 22:00:57,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 22:00:57,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 22:00:57,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 22:00:57,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 22:00:57,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:57" (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 [2019-10-14 22:00:57,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 22:00:57,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 22:00:57,441 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-14 22:00:57,441 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 22:00:57,441 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-14 22:00:57,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 22:00:57,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 22:00:57,442 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-14 22:00:57,442 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 22:00:57,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 22:00:57,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 22:00:59,061 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 22:00:59,061 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 22:00:59,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:00:59 BoogieIcfgContainer [2019-10-14 22:00:59,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 22:00:59,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 22:00:59,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 22:00:59,068 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 22:00:59,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:00:56" (1/3) ... [2019-10-14 22:00:59,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2966807c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:00:59, skipping insertion in model container [2019-10-14 22:00:59,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:57" (2/3) ... [2019-10-14 22:00:59,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2966807c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:00:59, skipping insertion in model container [2019-10-14 22:00:59,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:00:59" (3/3) ... [2019-10-14 22:00:59,072 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label00.c [2019-10-14 22:00:59,083 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 22:00:59,092 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 22:00:59,104 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 22:00:59,133 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 22:00:59,134 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 22:00:59,134 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 22:00:59,134 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 22:00:59,134 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 22:00:59,135 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 22:00:59,135 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 22:00:59,135 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 22:00:59,161 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2019-10-14 22:00:59,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-14 22:00:59,170 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:00:59,171 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 22:00:59,173 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:00:59,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:00:59,180 INFO L82 PathProgramCache]: Analyzing trace with hash -837227006, now seen corresponding path program 1 times [2019-10-14 22:00:59,189 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:00:59,189 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891543177] [2019-10-14 22:00:59,190 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:00:59,190 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:00:59,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:00:59,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:00:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:00:59,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 22:00:59,653 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891543177] [2019-10-14 22:00:59,654 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 22:00:59,655 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 22:00:59,655 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177349804] [2019-10-14 22:00:59,661 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 22:00:59,661 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:00:59,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 22:00:59,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-14 22:00:59,680 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2019-10-14 22:01:02,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 22:01:02,043 INFO L93 Difference]: Finished difference Result 886 states and 1613 transitions. [2019-10-14 22:01:02,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 22:01:02,045 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2019-10-14 22:01:02,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 22:01:02,067 INFO L225 Difference]: With dead ends: 886 [2019-10-14 22:01:02,067 INFO L226 Difference]: Without dead ends: 564 [2019-10-14 22:01:02,082 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-14 22:01:02,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2019-10-14 22:01:02,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 558. [2019-10-14 22:01:02,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2019-10-14 22:01:02,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 906 transitions. [2019-10-14 22:01:02,215 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 906 transitions. Word has length 59 [2019-10-14 22:01:02,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 22:01:02,216 INFO L462 AbstractCegarLoop]: Abstraction has 558 states and 906 transitions. [2019-10-14 22:01:02,216 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 22:01:02,217 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 906 transitions. [2019-10-14 22:01:02,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-14 22:01:02,231 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:01:02,232 INFO L380 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, 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] [2019-10-14 22:01:02,232 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:01:02,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:01:02,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1547926855, now seen corresponding path program 1 times [2019-10-14 22:01:02,234 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:01:02,235 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111148159] [2019-10-14 22:01:02,235 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:01:02,235 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:01:02,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:01:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:02,582 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 22:01:02,583 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111148159] [2019-10-14 22:01:02,583 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 22:01:02,583 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 22:01:02,584 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142348085] [2019-10-14 22:01:02,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 22:01:02,586 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:01:02,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 22:01:02,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-10-14 22:01:02,587 INFO L87 Difference]: Start difference. First operand 558 states and 906 transitions. Second operand 9 states. [2019-10-14 22:01:05,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 22:01:05,370 INFO L93 Difference]: Finished difference Result 2246 states and 3775 transitions. [2019-10-14 22:01:05,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-14 22:01:05,376 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 128 [2019-10-14 22:01:05,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 22:01:05,389 INFO L225 Difference]: With dead ends: 2246 [2019-10-14 22:01:05,389 INFO L226 Difference]: Without dead ends: 1694 [2019-10-14 22:01:05,392 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2019-10-14 22:01:05,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2019-10-14 22:01:05,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1128. [2019-10-14 22:01:05,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2019-10-14 22:01:05,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1732 transitions. [2019-10-14 22:01:05,468 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1732 transitions. Word has length 128 [2019-10-14 22:01:05,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 22:01:05,470 INFO L462 AbstractCegarLoop]: Abstraction has 1128 states and 1732 transitions. [2019-10-14 22:01:05,470 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 22:01:05,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1732 transitions. [2019-10-14 22:01:05,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-14 22:01:05,481 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:01:05,482 INFO L380 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, 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] [2019-10-14 22:01:05,483 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:01:05,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:01:05,484 INFO L82 PathProgramCache]: Analyzing trace with hash -186094754, now seen corresponding path program 1 times [2019-10-14 22:01:05,484 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:01:05,485 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719468084] [2019-10-14 22:01:05,486 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:01:05,486 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:01:05,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:01:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:05,771 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 22:01:05,772 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719468084] [2019-10-14 22:01:05,772 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 22:01:05,772 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 22:01:05,773 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699751036] [2019-10-14 22:01:05,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 22:01:05,775 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:01:05,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 22:01:05,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-14 22:01:05,780 INFO L87 Difference]: Start difference. First operand 1128 states and 1732 transitions. Second operand 8 states. [2019-10-14 22:01:07,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 22:01:07,653 INFO L93 Difference]: Finished difference Result 2856 states and 4565 transitions. [2019-10-14 22:01:07,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 22:01:07,654 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 129 [2019-10-14 22:01:07,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 22:01:07,668 INFO L225 Difference]: With dead ends: 2856 [2019-10-14 22:01:07,668 INFO L226 Difference]: Without dead ends: 1734 [2019-10-14 22:01:07,672 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2019-10-14 22:01:07,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2019-10-14 22:01:07,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1706. [2019-10-14 22:01:07,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1706 states. [2019-10-14 22:01:07,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2406 transitions. [2019-10-14 22:01:07,743 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2406 transitions. Word has length 129 [2019-10-14 22:01:07,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 22:01:07,745 INFO L462 AbstractCegarLoop]: Abstraction has 1706 states and 2406 transitions. [2019-10-14 22:01:07,745 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 22:01:07,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2406 transitions. [2019-10-14 22:01:07,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-14 22:01:07,746 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:01:07,747 INFO L380 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, 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] [2019-10-14 22:01:07,747 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:01:07,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:01:07,748 INFO L82 PathProgramCache]: Analyzing trace with hash -547188926, now seen corresponding path program 1 times [2019-10-14 22:01:07,748 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:01:07,748 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429396576] [2019-10-14 22:01:07,748 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:01:07,748 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:01:07,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:01:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:07,952 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 22:01:07,952 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429396576] [2019-10-14 22:01:07,953 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 22:01:07,953 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 22:01:07,953 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737790875] [2019-10-14 22:01:07,954 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 22:01:07,954 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:01:07,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 22:01:07,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-10-14 22:01:07,955 INFO L87 Difference]: Start difference. First operand 1706 states and 2406 transitions. Second operand 8 states. [2019-10-14 22:01:10,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 22:01:10,101 INFO L93 Difference]: Finished difference Result 4298 states and 6640 transitions. [2019-10-14 22:01:10,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-14 22:01:10,102 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 131 [2019-10-14 22:01:10,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 22:01:10,136 INFO L225 Difference]: With dead ends: 4298 [2019-10-14 22:01:10,136 INFO L226 Difference]: Without dead ends: 2598 [2019-10-14 22:01:10,144 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2019-10-14 22:01:10,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2019-10-14 22:01:10,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 2460. [2019-10-14 22:01:10,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2460 states. [2019-10-14 22:01:10,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2460 states to 2460 states and 3319 transitions. [2019-10-14 22:01:10,346 INFO L78 Accepts]: Start accepts. Automaton has 2460 states and 3319 transitions. Word has length 131 [2019-10-14 22:01:10,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 22:01:10,348 INFO L462 AbstractCegarLoop]: Abstraction has 2460 states and 3319 transitions. [2019-10-14 22:01:10,348 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 22:01:10,348 INFO L276 IsEmpty]: Start isEmpty. Operand 2460 states and 3319 transitions. [2019-10-14 22:01:10,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-14 22:01:10,352 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:01:10,352 INFO L380 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, 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] [2019-10-14 22:01:10,352 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:01:10,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:01:10,353 INFO L82 PathProgramCache]: Analyzing trace with hash -252421119, now seen corresponding path program 1 times [2019-10-14 22:01:10,353 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:01:10,354 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123207601] [2019-10-14 22:01:10,355 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:01:10,355 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:01:10,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:01:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:10,639 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 51 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 22:01:10,640 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123207601] [2019-10-14 22:01:10,640 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872656404] [2019-10-14 22:01:10,640 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 [2019-10-14 22:01:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:10,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-14 22:01:10,769 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 22:01:10,887 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 22:01:10,887 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 22:01:10,888 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2019-10-14 22:01:10,888 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301936107] [2019-10-14 22:01:10,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 22:01:10,889 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:01:10,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 22:01:10,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-14 22:01:10,890 INFO L87 Difference]: Start difference. First operand 2460 states and 3319 transitions. Second operand 3 states. [2019-10-14 22:01:11,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 22:01:11,870 INFO L93 Difference]: Finished difference Result 5650 states and 7629 transitions. [2019-10-14 22:01:11,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 22:01:11,870 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2019-10-14 22:01:11,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 22:01:11,886 INFO L225 Difference]: With dead ends: 5650 [2019-10-14 22:01:11,887 INFO L226 Difference]: Without dead ends: 3196 [2019-10-14 22:01:11,893 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 135 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-14 22:01:11,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3196 states. [2019-10-14 22:01:11,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3196 to 2826. [2019-10-14 22:01:11,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2826 states. [2019-10-14 22:01:11,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2826 states to 2826 states and 3795 transitions. [2019-10-14 22:01:11,991 INFO L78 Accepts]: Start accepts. Automaton has 2826 states and 3795 transitions. Word has length 132 [2019-10-14 22:01:11,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 22:01:11,991 INFO L462 AbstractCegarLoop]: Abstraction has 2826 states and 3795 transitions. [2019-10-14 22:01:11,991 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 22:01:11,992 INFO L276 IsEmpty]: Start isEmpty. Operand 2826 states and 3795 transitions. [2019-10-14 22:01:11,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2019-10-14 22:01:11,999 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:01:12,000 INFO L380 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 22:01:12,204 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 22:01:12,205 INFO L410 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:01:12,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:01:12,206 INFO L82 PathProgramCache]: Analyzing trace with hash -215391879, now seen corresponding path program 1 times [2019-10-14 22:01:12,206 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:01:12,207 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106425767] [2019-10-14 22:01:12,207 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:01:12,207 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:01:12,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:01:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:12,590 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 51 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 22:01:12,590 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106425767] [2019-10-14 22:01:12,591 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409576127] [2019-10-14 22:01:12,591 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 [2019-10-14 22:01:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:12,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-14 22:01:12,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 22:01:12,787 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 22:01:12,788 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 22:01:12,788 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2019-10-14 22:01:12,788 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004988079] [2019-10-14 22:01:12,789 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 22:01:12,790 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:01:12,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 22:01:12,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-14 22:01:12,790 INFO L87 Difference]: Start difference. First operand 2826 states and 3795 transitions. Second operand 3 states. [2019-10-14 22:01:13,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 22:01:13,745 INFO L93 Difference]: Finished difference Result 6018 states and 8242 transitions. [2019-10-14 22:01:13,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 22:01:13,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2019-10-14 22:01:13,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 22:01:13,769 INFO L225 Difference]: With dead ends: 6018 [2019-10-14 22:01:13,769 INFO L226 Difference]: Without dead ends: 3380 [2019-10-14 22:01:13,776 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-14 22:01:13,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3380 states. [2019-10-14 22:01:13,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3380 to 2834. [2019-10-14 22:01:13,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2834 states. [2019-10-14 22:01:13,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 3761 transitions. [2019-10-14 22:01:13,867 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 3761 transitions. Word has length 224 [2019-10-14 22:01:13,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 22:01:13,869 INFO L462 AbstractCegarLoop]: Abstraction has 2834 states and 3761 transitions. [2019-10-14 22:01:13,869 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 22:01:13,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 3761 transitions. [2019-10-14 22:01:13,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2019-10-14 22:01:13,877 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:01:13,877 INFO L380 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 22:01:14,089 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 22:01:14,089 INFO L410 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:01:14,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:01:14,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1818380737, now seen corresponding path program 1 times [2019-10-14 22:01:14,090 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:01:14,091 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185033498] [2019-10-14 22:01:14,091 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:01:14,091 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:01:14,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:01:14,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:14,448 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-10-14 22:01:14,448 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185033498] [2019-10-14 22:01:14,449 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446324861] [2019-10-14 22:01:14,449 INFO L94 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 [2019-10-14 22:01:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:14,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-14 22:01:14,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 22:01:14,676 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-10-14 22:01:14,677 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 22:01:14,677 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2019-10-14 22:01:14,677 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731796093] [2019-10-14 22:01:14,679 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 22:01:14,680 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:01:14,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 22:01:14,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-14 22:01:14,681 INFO L87 Difference]: Start difference. First operand 2834 states and 3761 transitions. Second operand 3 states. [2019-10-14 22:01:15,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 22:01:15,486 INFO L93 Difference]: Finished difference Result 5478 states and 7312 transitions. [2019-10-14 22:01:15,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 22:01:15,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 288 [2019-10-14 22:01:15,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 22:01:15,502 INFO L225 Difference]: With dead ends: 5478 [2019-10-14 22:01:15,503 INFO L226 Difference]: Without dead ends: 2834 [2019-10-14 22:01:15,510 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 293 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-14 22:01:15,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states. [2019-10-14 22:01:15,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 2652. [2019-10-14 22:01:15,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2652 states. [2019-10-14 22:01:15,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2652 states to 2652 states and 3497 transitions. [2019-10-14 22:01:15,590 INFO L78 Accepts]: Start accepts. Automaton has 2652 states and 3497 transitions. Word has length 288 [2019-10-14 22:01:15,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 22:01:15,591 INFO L462 AbstractCegarLoop]: Abstraction has 2652 states and 3497 transitions. [2019-10-14 22:01:15,591 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 22:01:15,592 INFO L276 IsEmpty]: Start isEmpty. Operand 2652 states and 3497 transitions. [2019-10-14 22:01:15,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2019-10-14 22:01:15,602 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:01:15,603 INFO L380 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 22:01:15,816 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 22:01:15,817 INFO L410 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:01:15,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:01:15,817 INFO L82 PathProgramCache]: Analyzing trace with hash 382896273, now seen corresponding path program 1 times [2019-10-14 22:01:15,818 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:01:15,818 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086791781] [2019-10-14 22:01:15,819 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:01:15,819 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:01:15,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:01:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:16,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:16,401 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 163 proven. 52 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 22:01:16,401 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086791781] [2019-10-14 22:01:16,402 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666470598] [2019-10-14 22:01:16,402 INFO L94 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 [2019-10-14 22:01:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:16,537 INFO L256 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-14 22:01:16,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 22:01:16,610 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 22:01:16,795 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2019-10-14 22:01:16,796 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 22:01:16,796 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2019-10-14 22:01:16,796 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141895787] [2019-10-14 22:01:16,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 22:01:16,797 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:01:16,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 22:01:16,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2019-10-14 22:01:16,798 INFO L87 Difference]: Start difference. First operand 2652 states and 3497 transitions. Second operand 5 states. [2019-10-14 22:01:18,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 22:01:18,016 INFO L93 Difference]: Finished difference Result 5142 states and 6841 transitions. [2019-10-14 22:01:18,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-14 22:01:18,017 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 324 [2019-10-14 22:01:18,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 22:01:18,030 INFO L225 Difference]: With dead ends: 5142 [2019-10-14 22:01:18,030 INFO L226 Difference]: Without dead ends: 2680 [2019-10-14 22:01:18,036 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-10-14 22:01:18,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2019-10-14 22:01:18,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 2666. [2019-10-14 22:01:18,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2666 states. [2019-10-14 22:01:18,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2666 states to 2666 states and 3480 transitions. [2019-10-14 22:01:18,100 INFO L78 Accepts]: Start accepts. Automaton has 2666 states and 3480 transitions. Word has length 324 [2019-10-14 22:01:18,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 22:01:18,101 INFO L462 AbstractCegarLoop]: Abstraction has 2666 states and 3480 transitions. [2019-10-14 22:01:18,101 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 22:01:18,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2666 states and 3480 transitions. [2019-10-14 22:01:18,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2019-10-14 22:01:18,112 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:01:18,112 INFO L380 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 22:01:18,317 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 22:01:18,318 INFO L410 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:01:18,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:01:18,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1608334599, now seen corresponding path program 1 times [2019-10-14 22:01:18,319 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:01:18,319 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15358975] [2019-10-14 22:01:18,319 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:01:18,319 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:01:18,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:01:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:19,741 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 166 proven. 263 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-14 22:01:19,742 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15358975] [2019-10-14 22:01:19,742 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974586810] [2019-10-14 22:01:19,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 22:01:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:19,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 26 conjunts are in the unsatisfiable core [2019-10-14 22:01:19,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 22:01:19,918 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-14 22:01:20,195 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 330 proven. 53 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2019-10-14 22:01:20,195 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 22:01:20,196 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8] total 16 [2019-10-14 22:01:20,196 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871474637] [2019-10-14 22:01:20,197 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-14 22:01:20,197 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:01:20,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-14 22:01:20,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2019-10-14 22:01:20,198 INFO L87 Difference]: Start difference. First operand 2666 states and 3480 transitions. Second operand 16 states. [2019-10-14 22:01:24,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 22:01:24,655 INFO L93 Difference]: Finished difference Result 5260 states and 6928 transitions. [2019-10-14 22:01:24,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-14 22:01:24,655 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 408 [2019-10-14 22:01:24,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 22:01:24,666 INFO L225 Difference]: With dead ends: 5260 [2019-10-14 22:01:24,666 INFO L226 Difference]: Without dead ends: 2733 [2019-10-14 22:01:24,672 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=254, Invalid=868, Unknown=0, NotChecked=0, Total=1122 [2019-10-14 22:01:24,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2733 states. [2019-10-14 22:01:24,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2733 to 2660. [2019-10-14 22:01:24,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2660 states. [2019-10-14 22:01:24,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2660 states to 2660 states and 3229 transitions. [2019-10-14 22:01:24,738 INFO L78 Accepts]: Start accepts. Automaton has 2660 states and 3229 transitions. Word has length 408 [2019-10-14 22:01:24,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 22:01:24,738 INFO L462 AbstractCegarLoop]: Abstraction has 2660 states and 3229 transitions. [2019-10-14 22:01:24,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-14 22:01:24,738 INFO L276 IsEmpty]: Start isEmpty. Operand 2660 states and 3229 transitions. [2019-10-14 22:01:24,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2019-10-14 22:01:24,754 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:01:24,755 INFO L380 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2019-10-14 22:01:24,966 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 22:01:24,967 INFO L410 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:01:24,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:01:24,967 INFO L82 PathProgramCache]: Analyzing trace with hash -2012438250, now seen corresponding path program 1 times [2019-10-14 22:01:24,968 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:01:24,968 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301248401] [2019-10-14 22:01:24,968 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:01:24,968 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:01:24,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:01:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:26,099 INFO L134 CoverageAnalysis]: Checked inductivity of 867 backedges. 434 proven. 111 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2019-10-14 22:01:26,100 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301248401] [2019-10-14 22:01:26,100 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182130539] [2019-10-14 22:01:26,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 22:01:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:26,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 801 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-14 22:01:26,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 22:01:26,454 INFO L134 CoverageAnalysis]: Checked inductivity of 867 backedges. 706 proven. 2 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2019-10-14 22:01:26,455 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 22:01:26,455 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 9 [2019-10-14 22:01:26,455 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180099861] [2019-10-14 22:01:26,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 22:01:26,456 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:01:26,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 22:01:26,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-14 22:01:26,457 INFO L87 Difference]: Start difference. First operand 2660 states and 3229 transitions. Second operand 9 states. [2019-10-14 22:01:28,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 22:01:28,391 INFO L93 Difference]: Finished difference Result 5320 states and 6462 transitions. [2019-10-14 22:01:28,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 22:01:28,393 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 543 [2019-10-14 22:01:28,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 22:01:28,404 INFO L225 Difference]: With dead ends: 5320 [2019-10-14 22:01:28,404 INFO L226 Difference]: Without dead ends: 2850 [2019-10-14 22:01:28,410 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 556 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2019-10-14 22:01:28,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2019-10-14 22:01:28,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 2664. [2019-10-14 22:01:28,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2019-10-14 22:01:28,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3080 transitions. [2019-10-14 22:01:28,479 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3080 transitions. Word has length 543 [2019-10-14 22:01:28,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 22:01:28,480 INFO L462 AbstractCegarLoop]: Abstraction has 2664 states and 3080 transitions. [2019-10-14 22:01:28,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 22:01:28,480 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3080 transitions. [2019-10-14 22:01:28,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2019-10-14 22:01:28,503 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:01:28,504 INFO L380 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 22:01:28,712 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 22:01:28,713 INFO L410 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:01:28,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:01:28,713 INFO L82 PathProgramCache]: Analyzing trace with hash 410369790, now seen corresponding path program 1 times [2019-10-14 22:01:28,714 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:01:28,714 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101305601] [2019-10-14 22:01:28,714 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:01:28,716 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:01:28,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:01:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:28,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:01:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat