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/eca-rers2012/Problem12_label20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:50:58,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:50:58,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:50:58,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-15 01:50:58,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:50:58,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:50:58,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:50:58,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:50:58,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:50:58,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:50:58,977 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:50:58,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:50:58,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:50:58,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:50:58,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:50:58,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:50:58,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:50:59,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:50:59,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:50:59,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:50:59,009 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 [2019-10-15 01:50:59,029 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:50:59,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:50:59,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:50:59,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:50:59,034 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:50:59,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:50:59,034 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:50:59,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:50:59,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:50:59,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:50:59,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:50:59,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:50:59,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:50:59,037 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:50:59,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:50:59,037 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:50:59,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:50:59,038 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:50:59,038 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:50:59,038 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:50:59,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:50:59,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:50:59,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:50:59,039 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:50:59,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:50:59,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:50:59,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:50:59,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:50:59,040 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 [2019-10-15 01:50:59,325 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:50:59,337 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:50:59,340 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:50:59,341 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:50:59,342 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:50:59,342 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label20.c [2019-10-15 01:50:59,400 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1744dc435/8a02ca36d3f546c2ac1d79e209c77818/FLAGc56305246 [2019-10-15 01:51:00,100 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:51:00,101 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label20.c [2019-10-15 01:51:00,131 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1744dc435/8a02ca36d3f546c2ac1d79e209c77818/FLAGc56305246 [2019-10-15 01:51:00,218 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1744dc435/8a02ca36d3f546c2ac1d79e209c77818 [2019-10-15 01:51:00,228 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:51:00,230 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:51:00,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:51:00,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:51:00,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:51:00,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:51:00" (1/1) ... [2019-10-15 01:51:00,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c472977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:51:00, skipping insertion in model container [2019-10-15 01:51:00,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:51:00" (1/1) ... [2019-10-15 01:51:00,249 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:51:00,399 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:51:01,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:51:01,835 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:51:02,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:51:02,495 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:51:02,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:51:02 WrapperNode [2019-10-15 01:51:02,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:51:02,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:51:02,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:51:02,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:51:02,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:51:02" (1/1) ... [2019-10-15 01:51:02,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:51:02" (1/1) ... [2019-10-15 01:51:02,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:51:02" (1/1) ... [2019-10-15 01:51:02,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:51:02" (1/1) ... [2019-10-15 01:51:02,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:51:02" (1/1) ... [2019-10-15 01:51:02,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:51:02" (1/1) ... [2019-10-15 01:51:02,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:51:02" (1/1) ... [2019-10-15 01:51:02,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:51:02,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:51:02,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:51:02,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:51:02,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:51:02" (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 [2019-10-15 01:51:02,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:51:02,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:51:02,868 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-15 01:51:02,868 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-10-15 01:51:02,869 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-10-15 01:51:02,869 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-10-15 01:51:02,871 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:51:02,871 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-15 01:51:02,871 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-10-15 01:51:02,871 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-10-15 01:51:02,871 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-10-15 01:51:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:51:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:51:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:51:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:51:02,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:51:02,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:51:08,975 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:51:08,975 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:51:08,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:51:08 BoogieIcfgContainer [2019-10-15 01:51:08,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:51:08,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:51:08,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:51:08,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:51:08,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:51:00" (1/3) ... [2019-10-15 01:51:08,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b4ffc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:51:08, skipping insertion in model container [2019-10-15 01:51:08,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:51:02" (2/3) ... [2019-10-15 01:51:08,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b4ffc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:51:08, skipping insertion in model container [2019-10-15 01:51:08,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:51:08" (3/3) ... [2019-10-15 01:51:08,985 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem12_label20.c [2019-10-15 01:51:08,995 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:51:09,004 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:51:09,016 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:51:09,047 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:51:09,047 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:51:09,047 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:51:09,047 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:51:09,048 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:51:09,048 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:51:09,048 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:51:09,048 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:51:09,079 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states. [2019-10-15 01:51:09,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-15 01:51:09,085 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:51:09,086 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:51:09,088 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:51:09,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:51:09,094 INFO L82 PathProgramCache]: Analyzing trace with hash -874965092, now seen corresponding path program 1 times [2019-10-15 01:51:09,103 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:51:09,103 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094683176] [2019-10-15 01:51:09,103 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:51:09,104 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:51:09,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:51:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:51:09,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:51:09,311 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094683176] [2019-10-15 01:51:09,311 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:51:09,312 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:51:09,312 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377868082] [2019-10-15 01:51:09,316 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:51:09,317 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:51:09,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:51:09,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:51:09,334 INFO L87 Difference]: Start difference. First operand 694 states. Second operand 3 states. [2019-10-15 01:51:13,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:51:13,827 INFO L93 Difference]: Finished difference Result 2068 states and 4065 transitions. [2019-10-15 01:51:13,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:51:13,829 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-10-15 01:51:13,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:51:13,862 INFO L225 Difference]: With dead ends: 2068 [2019-10-15 01:51:13,862 INFO L226 Difference]: Without dead ends: 1371 [2019-10-15 01:51:13,872 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:51:13,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2019-10-15 01:51:13,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1357. [2019-10-15 01:51:13,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1357 states. [2019-10-15 01:51:13,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 2576 transitions. [2019-10-15 01:51:13,999 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 2576 transitions. Word has length 11 [2019-10-15 01:51:13,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:51:13,999 INFO L462 AbstractCegarLoop]: Abstraction has 1357 states and 2576 transitions. [2019-10-15 01:51:13,999 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:51:14,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 2576 transitions. [2019-10-15 01:51:14,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-15 01:51:14,001 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:51:14,002 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:51:14,002 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:51:14,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:51:14,003 INFO L82 PathProgramCache]: Analyzing trace with hash -263853734, now seen corresponding path program 1 times [2019-10-15 01:51:14,003 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:51:14,003 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251541896] [2019-10-15 01:51:14,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:51:14,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:51:14,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:51:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:51:14,144 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:51:14,145 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251541896] [2019-10-15 01:51:14,145 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:51:14,145 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:51:14,146 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607539138] [2019-10-15 01:51:14,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:51:14,147 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:51:14,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:51:14,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:51:14,149 INFO L87 Difference]: Start difference. First operand 1357 states and 2576 transitions. Second operand 5 states. [2019-10-15 01:51:20,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:51:20,047 INFO L93 Difference]: Finished difference Result 4103 states and 7818 transitions. [2019-10-15 01:51:20,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:51:20,047 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-10-15 01:51:20,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:51:20,063 INFO L225 Difference]: With dead ends: 4103 [2019-10-15 01:51:20,063 INFO L226 Difference]: Without dead ends: 2751 [2019-10-15 01:51:20,067 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:51:20,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2751 states. [2019-10-15 01:51:20,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2751 to 2739. [2019-10-15 01:51:20,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2739 states. [2019-10-15 01:51:20,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2739 states to 2739 states and 4960 transitions. [2019-10-15 01:51:20,158 INFO L78 Accepts]: Start accepts. Automaton has 2739 states and 4960 transitions. Word has length 25 [2019-10-15 01:51:20,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:51:20,158 INFO L462 AbstractCegarLoop]: Abstraction has 2739 states and 4960 transitions. [2019-10-15 01:51:20,159 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:51:20,159 INFO L276 IsEmpty]: Start isEmpty. Operand 2739 states and 4960 transitions. [2019-10-15 01:51:20,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-15 01:51:20,161 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:51:20,161 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:51:20,161 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:51:20,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:51:20,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1358405302, now seen corresponding path program 1 times [2019-10-15 01:51:20,163 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:51:20,164 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120707402] [2019-10-15 01:51:20,164 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:51:20,164 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:51:20,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:51:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:51:20,292 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-15 01:51:20,293 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120707402] [2019-10-15 01:51:20,293 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002078428] [2019-10-15 01:51:20,293 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 [2019-10-15 01:51:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:51:20,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:51:20,386 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:51:20,432 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-15 01:51:20,433 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:51:20,518 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-15 01:51:20,519 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:51:20,519 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 7 [2019-10-15 01:51:20,519 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266400095] [2019-10-15 01:51:20,520 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:51:20,520 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:51:20,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:51:20,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:51:20,521 INFO L87 Difference]: Start difference. First operand 2739 states and 4960 transitions. Second operand 4 states. [2019-10-15 01:51:27,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:51:27,408 INFO L93 Difference]: Finished difference Result 7575 states and 13740 transitions. [2019-10-15 01:51:27,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:51:27,411 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2019-10-15 01:51:27,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:51:27,438 INFO L225 Difference]: With dead ends: 7575 [2019-10-15 01:51:27,438 INFO L226 Difference]: Without dead ends: 4841 [2019-10-15 01:51:27,444 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:51:27,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4841 states. [2019-10-15 01:51:27,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4841 to 4821. [2019-10-15 01:51:27,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4821 states. [2019-10-15 01:51:27,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4821 states to 4821 states and 8445 transitions. [2019-10-15 01:51:27,643 INFO L78 Accepts]: Start accepts. Automaton has 4821 states and 8445 transitions. Word has length 27 [2019-10-15 01:51:27,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:51:27,644 INFO L462 AbstractCegarLoop]: Abstraction has 4821 states and 8445 transitions. [2019-10-15 01:51:27,644 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:51:27,644 INFO L276 IsEmpty]: Start isEmpty. Operand 4821 states and 8445 transitions. [2019-10-15 01:51:27,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-15 01:51:27,661 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:51:27,662 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-15 01:51:27,876 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:51:27,877 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:51:27,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:51:27,878 INFO L82 PathProgramCache]: Analyzing trace with hash 549060052, now seen corresponding path program 1 times [2019-10-15 01:51:27,878 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:51:27,878 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891194756] [2019-10-15 01:51:27,879 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:51:27,879 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:51:27,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:51:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:51:28,107 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 01:51:28,107 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891194756] [2019-10-15 01:51:28,108 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819846698] [2019-10-15 01:51:28,108 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 [2019-10-15 01:51:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:51:28,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:51:28,212 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:51:28,253 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:51:28,253 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:51:28,340 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 01:51:28,341 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:51:28,341 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2019-10-15 01:51:28,341 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302992447] [2019-10-15 01:51:28,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:51:28,343 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:51:28,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:51:28,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:51:28,344 INFO L87 Difference]: Start difference. First operand 4821 states and 8445 transitions. Second operand 5 states. [2019-10-15 01:51:34,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:51:34,903 INFO L93 Difference]: Finished difference Result 11877 states and 20918 transitions. [2019-10-15 01:51:34,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:51:34,904 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2019-10-15 01:51:34,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:51:34,940 INFO L225 Difference]: With dead ends: 11877 [2019-10-15 01:51:34,941 INFO L226 Difference]: Without dead ends: 7061 [2019-10-15 01:51:34,951 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:51:34,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7061 states. [2019-10-15 01:51:35,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7061 to 6931. [2019-10-15 01:51:35,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6931 states. [2019-10-15 01:51:35,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6931 states to 6931 states and 11299 transitions. [2019-10-15 01:51:35,156 INFO L78 Accepts]: Start accepts. Automaton has 6931 states and 11299 transitions. Word has length 57 [2019-10-15 01:51:35,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:51:35,157 INFO L462 AbstractCegarLoop]: Abstraction has 6931 states and 11299 transitions. [2019-10-15 01:51:35,158 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:51:35,158 INFO L276 IsEmpty]: Start isEmpty. Operand 6931 states and 11299 transitions. [2019-10-15 01:51:35,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-10-15 01:51:35,160 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:51:35,160 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-15 01:51:35,372 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:51:35,373 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:51:35,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:51:35,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1938895371, now seen corresponding path program 1 times [2019-10-15 01:51:35,375 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:51:35,375 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946510570] [2019-10-15 01:51:35,375 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:51:35,375 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:51:35,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:51:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat