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/systemc/pc_sfifo_1.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:31:37,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:31:37,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:31:37,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:31:37,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:31:37,879 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:31:37,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:31:37,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:31:37,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:31:37,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:31:37,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:31:37,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:31:37,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:31:37,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:31:37,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:31:37,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:31:37,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:31:37,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:31:37,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:31:37,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:31:37,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:31:37,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:31:37,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:31:37,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:31:37,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 03:31:37,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:31:37,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:31:37,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:31:37,914 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 03:31:37,934 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:31:37,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:31:37,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:31:37,939 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:31:37,939 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:31:37,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:31:37,940 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:31:37,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:31:37,940 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:31:37,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:31:37,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:31:37,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:31:37,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:31:37,942 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:31:37,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:31:37,942 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:31:37,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:31:37,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:31:37,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:31:37,943 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:31:37,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:31:37,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:31:37,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:31:37,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:31:37,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:31:37,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:31:37,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:31:37,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:31:37,946 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 03:31:38,233 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:31:38,246 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:31:38,250 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:31:38,251 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:31:38,252 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:31:38,252 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_1.cil-2.c [2019-10-15 03:31:38,315 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb3c2d0f4/f126a3be68d945c0ad3aac24bb9d9db2/FLAGc415f2bf0 [2019-10-15 03:31:38,784 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:31:38,784 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_1.cil-2.c [2019-10-15 03:31:38,793 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb3c2d0f4/f126a3be68d945c0ad3aac24bb9d9db2/FLAGc415f2bf0 [2019-10-15 03:31:39,140 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb3c2d0f4/f126a3be68d945c0ad3aac24bb9d9db2 [2019-10-15 03:31:39,150 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:31:39,152 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:31:39,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:31:39,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:31:39,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:31:39,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:39" (1/1) ... [2019-10-15 03:31:39,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c0ba10c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:39, skipping insertion in model container [2019-10-15 03:31:39,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:39" (1/1) ... [2019-10-15 03:31:39,167 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:31:39,221 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:31:39,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:31:39,489 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:31:39,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:31:39,632 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:31:39,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:39 WrapperNode [2019-10-15 03:31:39,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:31:39,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:31:39,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:31:39,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:31:39,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:39" (1/1) ... [2019-10-15 03:31:39,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:39" (1/1) ... [2019-10-15 03:31:39,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:39" (1/1) ... [2019-10-15 03:31:39,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:39" (1/1) ... [2019-10-15 03:31:39,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:39" (1/1) ... [2019-10-15 03:31:39,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:39" (1/1) ... [2019-10-15 03:31:39,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:39" (1/1) ... [2019-10-15 03:31:39,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:31:39,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:31:39,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:31:39,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:31:39,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:39" (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 03:31:39,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:31:39,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:31:39,781 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-10-15 03:31:39,781 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-10-15 03:31:39,781 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-10-15 03:31:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-10-15 03:31:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-10-15 03:31:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-10-15 03:31:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-10-15 03:31:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-10-15 03:31:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-10-15 03:31:39,786 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-10-15 03:31:39,786 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-10-15 03:31:39,786 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-10-15 03:31:39,786 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:31:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:31:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:31:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-10-15 03:31:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-10-15 03:31:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-10-15 03:31:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-10-15 03:31:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-10-15 03:31:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-10-15 03:31:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-10-15 03:31:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-10-15 03:31:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-10-15 03:31:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-10-15 03:31:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-10-15 03:31:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-10-15 03:31:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:31:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:31:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:31:40,464 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:31:40,464 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:31:40,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:31:40 BoogieIcfgContainer [2019-10-15 03:31:40,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:31:40,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:31:40,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:31:40,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:31:40,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:31:39" (1/3) ... [2019-10-15 03:31:40,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1811589d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:31:40, skipping insertion in model container [2019-10-15 03:31:40,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:39" (2/3) ... [2019-10-15 03:31:40,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1811589d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:31:40, skipping insertion in model container [2019-10-15 03:31:40,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:31:40" (3/3) ... [2019-10-15 03:31:40,474 INFO L109 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2.c [2019-10-15 03:31:40,484 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:31:40,492 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:31:40,502 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:31:40,528 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:31:40,528 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:31:40,528 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:31:40,528 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:31:40,529 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:31:40,529 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:31:40,529 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:31:40,529 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:31:40,550 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2019-10-15 03:31:40,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-15 03:31:40,559 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:31:40,560 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] [2019-10-15 03:31:40,562 INFO L410 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:31:40,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:31:40,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1371163158, now seen corresponding path program 1 times [2019-10-15 03:31:40,576 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:31:40,576 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52311883] [2019-10-15 03:31:40,577 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:31:40,577 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:31:40,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:31:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:31:40,941 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 03:31:40,941 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52311883] [2019-10-15 03:31:40,943 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:31:40,946 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:31:40,946 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240128890] [2019-10-15 03:31:40,952 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:31:40,953 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:31:40,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:31:40,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:31:40,966 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 5 states. [2019-10-15 03:31:41,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:31:41,237 INFO L93 Difference]: Finished difference Result 222 states and 297 transitions. [2019-10-15 03:31:41,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:31:41,239 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-10-15 03:31:41,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:31:41,252 INFO L225 Difference]: With dead ends: 222 [2019-10-15 03:31:41,253 INFO L226 Difference]: Without dead ends: 136 [2019-10-15 03:31:41,272 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:31:41,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-10-15 03:31:41,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 132. [2019-10-15 03:31:41,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-10-15 03:31:41,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 165 transitions. [2019-10-15 03:31:41,340 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 165 transitions. Word has length 51 [2019-10-15 03:31:41,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:31:41,341 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 165 transitions. [2019-10-15 03:31:41,341 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:31:41,341 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 165 transitions. [2019-10-15 03:31:41,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-15 03:31:41,345 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:31:41,345 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] [2019-10-15 03:31:41,346 INFO L410 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:31:41,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:31:41,346 INFO L82 PathProgramCache]: Analyzing trace with hash 3564182, now seen corresponding path program 1 times [2019-10-15 03:31:41,347 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:31:41,347 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800821828] [2019-10-15 03:31:41,347 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:31:41,347 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:31:41,348 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:31:41,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:31:41,471 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 03:31:41,473 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800821828] [2019-10-15 03:31:41,473 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:31:41,473 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:31:41,474 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337533487] [2019-10-15 03:31:41,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:31:41,480 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:31:41,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:31:41,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:31:41,481 INFO L87 Difference]: Start difference. First operand 132 states and 165 transitions. Second operand 5 states. [2019-10-15 03:31:42,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:31:42,059 INFO L93 Difference]: Finished difference Result 523 states and 754 transitions. [2019-10-15 03:31:42,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:31:42,060 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-10-15 03:31:42,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:31:42,073 INFO L225 Difference]: With dead ends: 523 [2019-10-15 03:31:42,074 INFO L226 Difference]: Without dead ends: 404 [2019-10-15 03:31:42,079 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 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 03:31:42,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2019-10-15 03:31:42,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 351. [2019-10-15 03:31:42,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2019-10-15 03:31:42,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 489 transitions. [2019-10-15 03:31:42,204 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 489 transitions. Word has length 58 [2019-10-15 03:31:42,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:31:42,205 INFO L462 AbstractCegarLoop]: Abstraction has 351 states and 489 transitions. [2019-10-15 03:31:42,205 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:31:42,205 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 489 transitions. [2019-10-15 03:31:42,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-15 03:31:42,208 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:31:42,208 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] [2019-10-15 03:31:42,208 INFO L410 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:31:42,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:31:42,209 INFO L82 PathProgramCache]: Analyzing trace with hash 862480819, now seen corresponding path program 1 times [2019-10-15 03:31:42,209 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:31:42,209 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761018601] [2019-10-15 03:31:42,210 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:31:42,210 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:31:42,210 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:31:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:31:42,293 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 03:31:42,293 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761018601] [2019-10-15 03:31:42,294 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:31:42,294 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:31:42,294 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805704023] [2019-10-15 03:31:42,295 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:31:42,295 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:31:42,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:31:42,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:31:42,296 INFO L87 Difference]: Start difference. First operand 351 states and 489 transitions. Second operand 3 states. [2019-10-15 03:31:42,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:31:42,370 INFO L93 Difference]: Finished difference Result 957 states and 1466 transitions. [2019-10-15 03:31:42,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:31:42,370 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-15 03:31:42,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:31:42,377 INFO L225 Difference]: With dead ends: 957 [2019-10-15 03:31:42,377 INFO L226 Difference]: Without dead ends: 619 [2019-10-15 03:31:42,381 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 03:31:42,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2019-10-15 03:31:42,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 615. [2019-10-15 03:31:42,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2019-10-15 03:31:42,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 901 transitions. [2019-10-15 03:31:42,474 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 901 transitions. Word has length 52 [2019-10-15 03:31:42,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:31:42,475 INFO L462 AbstractCegarLoop]: Abstraction has 615 states and 901 transitions. [2019-10-15 03:31:42,475 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:31:42,475 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 901 transitions. [2019-10-15 03:31:42,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-15 03:31:42,486 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:31:42,486 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] [2019-10-15 03:31:42,487 INFO L410 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:31:42,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:31:42,487 INFO L82 PathProgramCache]: Analyzing trace with hash 2080205856, now seen corresponding path program 1 times [2019-10-15 03:31:42,488 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:31:42,488 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661414807] [2019-10-15 03:31:42,488 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:31:42,488 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:31:42,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:31:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:31:42,642 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 03:31:42,643 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661414807] [2019-10-15 03:31:42,643 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:31:42,643 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:31:42,644 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145021980] [2019-10-15 03:31:42,644 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:31:42,644 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:31:42,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:31:42,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:31:42,645 INFO L87 Difference]: Start difference. First operand 615 states and 901 transitions. Second operand 4 states. [2019-10-15 03:31:42,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:31:42,807 INFO L93 Difference]: Finished difference Result 1110 states and 1707 transitions. [2019-10-15 03:31:42,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 03:31:42,807 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2019-10-15 03:31:42,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:31:42,812 INFO L225 Difference]: With dead ends: 1110 [2019-10-15 03:31:42,812 INFO L226 Difference]: Without dead ends: 535 [2019-10-15 03:31:42,816 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:31:42,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2019-10-15 03:31:42,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 526. [2019-10-15 03:31:42,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2019-10-15 03:31:42,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 709 transitions. [2019-10-15 03:31:42,862 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 709 transitions. Word has length 53 [2019-10-15 03:31:42,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:31:42,862 INFO L462 AbstractCegarLoop]: Abstraction has 526 states and 709 transitions. [2019-10-15 03:31:42,862 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:31:42,862 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 709 transitions. [2019-10-15 03:31:42,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-15 03:31:42,864 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:31:42,864 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] [2019-10-15 03:31:42,864 INFO L410 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:31:42,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:31:42,864 INFO L82 PathProgramCache]: Analyzing trace with hash -99765919, now seen corresponding path program 1 times [2019-10-15 03:31:42,865 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:31:42,865 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111203643] [2019-10-15 03:31:42,865 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:31:42,865 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:31:42,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:31:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:31:43,005 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 03:31:43,006 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111203643] [2019-10-15 03:31:43,007 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:31:43,007 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:31:43,007 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947034991] [2019-10-15 03:31:43,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:31:43,010 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:31:43,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:31:43,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:31:43,011 INFO L87 Difference]: Start difference. First operand 526 states and 709 transitions. Second operand 7 states. [2019-10-15 03:31:43,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:31:43,867 INFO L93 Difference]: Finished difference Result 1356 states and 2010 transitions. [2019-10-15 03:31:43,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:31:43,867 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2019-10-15 03:31:43,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:31:43,874 INFO L225 Difference]: With dead ends: 1356 [2019-10-15 03:31:43,874 INFO L226 Difference]: Without dead ends: 874 [2019-10-15 03:31:43,878 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2019-10-15 03:31:43,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2019-10-15 03:31:43,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 684. [2019-10-15 03:31:43,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 684 states. [2019-10-15 03:31:43,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 929 transitions. [2019-10-15 03:31:43,945 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 929 transitions. Word has length 53 [2019-10-15 03:31:43,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:31:43,945 INFO L462 AbstractCegarLoop]: Abstraction has 684 states and 929 transitions. [2019-10-15 03:31:43,946 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:31:43,946 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 929 transitions. [2019-10-15 03:31:43,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-10-15 03:31:43,947 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:31:43,947 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:31:43,948 INFO L410 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:31:43,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:31:43,948 INFO L82 PathProgramCache]: Analyzing trace with hash -241348593, now seen corresponding path program 1 times [2019-10-15 03:31:43,948 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:31:43,949 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771355256] [2019-10-15 03:31:43,949 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:31:43,949 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:31:43,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:31:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:31:44,012 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:31:44,013 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771355256] [2019-10-15 03:31:44,013 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:31:44,013 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:31:44,013 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239982229] [2019-10-15 03:31:44,014 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:31:44,014 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:31:44,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:31:44,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:31:44,015 INFO L87 Difference]: Start difference. First operand 684 states and 929 transitions. Second operand 4 states. [2019-10-15 03:31:44,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:31:44,138 INFO L93 Difference]: Finished difference Result 1499 states and 2239 transitions. [2019-10-15 03:31:44,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 03:31:44,138 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 69 [2019-10-15 03:31:44,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:31:44,145 INFO L225 Difference]: With dead ends: 1499 [2019-10-15 03:31:44,145 INFO L226 Difference]: Without dead ends: 828 [2019-10-15 03:31:44,149 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:31:44,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2019-10-15 03:31:44,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 780. [2019-10-15 03:31:44,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2019-10-15 03:31:44,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1126 transitions. [2019-10-15 03:31:44,220 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1126 transitions. Word has length 69 [2019-10-15 03:31:44,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:31:44,221 INFO L462 AbstractCegarLoop]: Abstraction has 780 states and 1126 transitions. [2019-10-15 03:31:44,221 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:31:44,221 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1126 transitions. [2019-10-15 03:31:44,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-10-15 03:31:44,223 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:31:44,223 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:31:44,224 INFO L410 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:31:44,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:31:44,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1285451814, now seen corresponding path program 1 times [2019-10-15 03:31:44,224 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:31:44,225 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984187758] [2019-10-15 03:31:44,225 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:31:44,225 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:31:44,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:31:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:31:44,293 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-15 03:31:44,293 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984187758] [2019-10-15 03:31:44,294 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:31:44,294 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:31:44,294 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943952931] [2019-10-15 03:31:44,294 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:31:44,295 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:31:44,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:31:44,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:31:44,295 INFO L87 Difference]: Start difference. First operand 780 states and 1126 transitions. Second operand 4 states. [2019-10-15 03:31:44,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:31:44,442 INFO L93 Difference]: Finished difference Result 893 states and 1339 transitions. [2019-10-15 03:31:44,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 03:31:44,443 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2019-10-15 03:31:44,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:31:44,452 INFO L225 Difference]: With dead ends: 893 [2019-10-15 03:31:44,452 INFO L226 Difference]: Without dead ends: 890 [2019-10-15 03:31:44,453 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:31:44,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2019-10-15 03:31:44,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 807. [2019-10-15 03:31:44,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2019-10-15 03:31:44,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1182 transitions. [2019-10-15 03:31:44,541 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1182 transitions. Word has length 80 [2019-10-15 03:31:44,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:31:44,542 INFO L462 AbstractCegarLoop]: Abstraction has 807 states and 1182 transitions. [2019-10-15 03:31:44,542 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:31:44,542 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1182 transitions. [2019-10-15 03:31:44,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-10-15 03:31:44,545 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:31:44,546 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:31:44,546 INFO L410 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:31:44,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:31:44,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1194604893, now seen corresponding path program 1 times [2019-10-15 03:31:44,546 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:31:44,547 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867370877] [2019-10-15 03:31:44,547 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:31:44,547 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:31:44,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:31:44,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:31:44,677 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-15 03:31:44,678 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867370877] [2019-10-15 03:31:44,678 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615499763] [2019-10-15 03:31:44,678 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 03:31:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:31:44,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 33 conjunts are in the unsatisfiable core [2019-10-15 03:31:44,871 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:31:45,013 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:31:45,013 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:31:45,124 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 03:31:45,232 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-15 03:31:45,233 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1303762136] [2019-10-15 03:31:45,283 INFO L162 IcfgInterpreter]: Started Sifa with 65 locations of interest [2019-10-15 03:31:45,284 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:31:45,292 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:31:45,302 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:31:45,303 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:31:45,534 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 46 for LOIs [2019-10-15 03:31:45,565 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 68 for LOIs [2019-10-15 03:31:46,091 INFO L199 IcfgInterpreter]: Interpreting procedure init_model with input of size 52 for LOIs [2019-10-15 03:31:46,189 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 74 for LOIs [2019-10-15 03:31:46,560 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 129 [2019-10-15 03:31:46,950 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 124 [2019-10-15 03:31:47,125 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 124 [2019-10-15 03:31:47,297 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-15 03:31:47,522 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 129 [2019-10-15 03:31:47,679 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 94 for LOIs [2019-10-15 03:31:55,650 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 66 for LOIs [2019-10-15 03:31:56,183 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 42 for LOIs [2019-10-15 03:31:56,201 INFO L199 IcfgInterpreter]: Interpreting procedure do_write_p with input of size 83 for LOIs [2019-10-15 03:31:57,619 INFO L199 IcfgInterpreter]: Interpreting procedure immediate_notify_threads with input of size 44 for LOIs [2019-10-15 03:31:58,035 INFO L199 IcfgInterpreter]: Interpreting procedure is_do_write_p_triggered with input of size 38 for LOIs [2019-10-15 03:31:58,146 INFO L199 IcfgInterpreter]: Interpreting procedure is_do_read_c_triggered with input of size 44 for LOIs [2019-10-15 03:31:58,230 INFO L199 IcfgInterpreter]: Interpreting procedure init_threads with input of size 42 for LOIs [2019-10-15 03:31:58,249 INFO L199 IcfgInterpreter]: Interpreting procedure exists_runnable_thread with input of size 68 for LOIs [2019-10-15 03:31:58,314 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 03:31:58,648 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 36 [2019-10-15 03:31:59,189 WARN L191 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 74 [2019-10-15 03:31:59,546 WARN L191 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 60 [2019-10-15 03:31:59,908 WARN L191 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 62 [2019-10-15 03:32:00,418 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 76 [2019-10-15 03:32:00,897 WARN L191 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 74 [2019-10-15 03:32:01,418 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 76 [2019-10-15 03:32:01,635 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 45 [2019-10-15 03:32:02,410 WARN L191 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 89 [2019-10-15 03:32:02,887 WARN L191 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 84 [2019-10-15 03:32:03,881 WARN L191 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 73 [2019-10-15 03:32:04,233 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2019-10-15 03:32:04,532 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 48 [2019-10-15 03:32:05,046 WARN L191 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 87 [2019-10-15 03:32:05,852 WARN L191 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 90 [2019-10-15 03:32:06,646 WARN L191 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 84 [2019-10-15 03:32:07,617 WARN L191 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 80 [2019-10-15 03:32:08,137 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 91 [2019-10-15 03:32:08,933 WARN L191 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 61 [2019-10-15 03:32:09,237 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 63 [2019-10-15 03:32:09,604 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 65 [2019-10-15 03:32:10,545 WARN L191 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 80 [2019-10-15 03:32:11,308 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2019-10-15 03:32:11,596 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2019-10-15 03:32:11,966 WARN L191 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2019-10-15 03:32:12,126 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2019-10-15 03:32:12,409 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2019-10-15 03:32:12,814 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2019-10-15 03:32:13,169 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 40 [2019-10-15 03:32:13,343 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2019-10-15 03:32:13,542 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2019-10-15 03:32:14,172 WARN L191 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 60 [2019-10-15 03:32:14,537 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66