/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 05:58:56,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 05:58:56,487 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 05:58:56,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 05:58:56,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 05:58:56,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 05:58:56,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 05:58:56,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 05:58:56,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 05:58:56,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 05:58:56,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 05:58:56,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 05:58:56,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 05:58:56,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 05:58:56,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 05:58:56,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 05:58:56,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 05:58:56,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 05:58:56,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 05:58:56,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 05:58:56,620 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 05:58:56,641 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 05:58:56,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 05:58:56,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 05:58:56,645 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 05:58:56,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 05:58:56,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 05:58:56,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 05:58:56,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 05:58:56,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 05:58:56,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 05:58:56,647 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 05:58:56,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 05:58:56,648 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 05:58:56,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 05:58:56,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 05:58:56,649 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 05:58:56,649 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 05:58:56,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 05:58:56,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:58:56,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 05:58:56,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 05:58:56,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 05:58:56,650 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 05:58:57,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 05:58:57,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 05:58:57,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 05:58:57,041 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 05:58:57,041 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 05:58:57,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label42.c [2020-11-07 05:58:57,127 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3d60c03b/5c3dbc19783743c9960cfe34e66715ea/FLAGc193058c2 [2020-11-07 05:58:57,852 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 05:58:57,853 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label42.c [2020-11-07 05:58:57,864 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3d60c03b/5c3dbc19783743c9960cfe34e66715ea/FLAGc193058c2 [2020-11-07 05:58:58,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3d60c03b/5c3dbc19783743c9960cfe34e66715ea [2020-11-07 05:58:58,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 05:58:58,121 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 05:58:58,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 05:58:58,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 05:58:58,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 05:58:58,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:58:58" (1/1) ... [2020-11-07 05:58:58,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3da0ac62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:58:58, skipping insertion in model container [2020-11-07 05:58:58,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:58:58" (1/1) ... [2020-11-07 05:58:58,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 05:58:58,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 05:58:58,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:58:58,655 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 05:58:58,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:58:58,751 INFO L208 MainTranslator]: Completed translation [2020-11-07 05:58:58,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:58:58 WrapperNode [2020-11-07 05:58:58,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 05:58:58,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 05:58:58,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 05:58:58,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 05:58:58,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:58:58" (1/1) ... [2020-11-07 05:58:58,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:58:58" (1/1) ... [2020-11-07 05:58:58,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:58:58" (1/1) ... [2020-11-07 05:58:58,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:58:58" (1/1) ... [2020-11-07 05:58:58,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:58:58" (1/1) ... [2020-11-07 05:58:58,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:58:58" (1/1) ... [2020-11-07 05:58:58,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:58:58" (1/1) ... [2020-11-07 05:58:58,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 05:58:58,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 05:58:58,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 05:58:58,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 05:58:58,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:58:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:58:58,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 05:58:58,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 05:58:58,942 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 05:58:58,943 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-11-07 05:58:58,943 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 05:58:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-11-07 05:58:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 05:58:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 05:58:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 05:58:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 05:58:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 05:58:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-07 05:58:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 05:58:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 05:58:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 05:58:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 05:58:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 05:58:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 05:58:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 05:59:00,813 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 05:59:00,814 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-07 05:59:00,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:59:00 BoogieIcfgContainer [2020-11-07 05:59:00,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 05:59:00,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 05:59:00,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 05:59:00,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 05:59:00,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:58:58" (1/3) ... [2020-11-07 05:59:00,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3874bf00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:59:00, skipping insertion in model container [2020-11-07 05:59:00,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:58:58" (2/3) ... [2020-11-07 05:59:00,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3874bf00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:59:00, skipping insertion in model container [2020-11-07 05:59:00,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:59:00" (3/3) ... [2020-11-07 05:59:00,825 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label42.c [2020-11-07 05:59:00,841 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 05:59:00,845 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 05:59:00,857 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 05:59:00,881 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 05:59:00,881 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 05:59:00,881 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 05:59:00,882 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 05:59:00,882 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 05:59:00,882 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 05:59:00,884 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 05:59:00,884 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 05:59:00,912 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states. [2020-11-07 05:59:00,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-11-07 05:59:00,938 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:59:00,939 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:59:00,939 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:59:00,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:59:00,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1131555461, now seen corresponding path program 1 times [2020-11-07 05:59:00,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:59:00,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1959566387] [2020-11-07 05:59:00,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:59:01,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:01,600 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-07 05:59:01,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:59:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:01,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:59:01,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1959566387] [2020-11-07 05:59:01,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:59:01,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-07 05:59:01,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39620126] [2020-11-07 05:59:01,709 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 05:59:01,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:59:01,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 05:59:01,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-07 05:59:01,726 INFO L87 Difference]: Start difference. First operand 539 states. Second operand 5 states. [2020-11-07 05:59:06,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:59:06,425 INFO L93 Difference]: Finished difference Result 1674 states and 2279 transitions. [2020-11-07 05:59:06,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-07 05:59:06,428 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2020-11-07 05:59:06,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:59:06,484 INFO L225 Difference]: With dead ends: 1674 [2020-11-07 05:59:06,485 INFO L226 Difference]: Without dead ends: 1048 [2020-11-07 05:59:06,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-07 05:59:06,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2020-11-07 05:59:06,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 875. [2020-11-07 05:59:06,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 875 states. [2020-11-07 05:59:06,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1075 transitions. [2020-11-07 05:59:06,782 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1075 transitions. Word has length 135 [2020-11-07 05:59:06,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:59:06,787 INFO L481 AbstractCegarLoop]: Abstraction has 875 states and 1075 transitions. [2020-11-07 05:59:06,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 05:59:06,787 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1075 transitions. [2020-11-07 05:59:06,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-11-07 05:59:06,800 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:59:06,801 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:59:06,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 05:59:06,801 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:59:06,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:59:06,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1773820619, now seen corresponding path program 1 times [2020-11-07 05:59:06,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:59:06,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [708259048] [2020-11-07 05:59:06,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:59:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:07,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:59:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:07,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:59:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:07,307 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:59:07,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [708259048] [2020-11-07 05:59:07,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:59:07,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 05:59:07,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234174332] [2020-11-07 05:59:07,311 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 05:59:07,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:59:07,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 05:59:07,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-07 05:59:07,316 INFO L87 Difference]: Start difference. First operand 875 states and 1075 transitions. Second operand 10 states. [2020-11-07 05:59:07,576 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-07 05:59:08,141 WARN L194 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-11-07 05:59:08,342 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-11-07 05:59:13,064 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-11-07 05:59:14,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:59:14,713 INFO L93 Difference]: Finished difference Result 2360 states and 2927 transitions. [2020-11-07 05:59:14,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-07 05:59:14,714 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 153 [2020-11-07 05:59:14,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:59:14,725 INFO L225 Difference]: With dead ends: 2360 [2020-11-07 05:59:14,726 INFO L226 Difference]: Without dead ends: 1515 [2020-11-07 05:59:14,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=207, Invalid=663, Unknown=0, NotChecked=0, Total=870 [2020-11-07 05:59:14,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2020-11-07 05:59:14,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1217. [2020-11-07 05:59:14,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1217 states. [2020-11-07 05:59:14,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1475 transitions. [2020-11-07 05:59:14,990 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1475 transitions. Word has length 153 [2020-11-07 05:59:14,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:59:14,991 INFO L481 AbstractCegarLoop]: Abstraction has 1217 states and 1475 transitions. [2020-11-07 05:59:14,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 05:59:14,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1475 transitions. [2020-11-07 05:59:14,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-11-07 05:59:14,997 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:59:14,997 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:59:14,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 05:59:14,998 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:59:14,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:59:14,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1805437949, now seen corresponding path program 1 times [2020-11-07 05:59:14,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:59:14,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048270904] [2020-11-07 05:59:14,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:59:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:15,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:59:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:15,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:59:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:15,311 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:59:15,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048270904] [2020-11-07 05:59:15,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:59:15,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-07 05:59:15,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742666219] [2020-11-07 05:59:15,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 05:59:15,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:59:15,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 05:59:15,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 05:59:15,322 INFO L87 Difference]: Start difference. First operand 1217 states and 1475 transitions. Second operand 5 states. [2020-11-07 05:59:18,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:59:18,054 INFO L93 Difference]: Finished difference Result 2452 states and 2978 transitions. [2020-11-07 05:59:18,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 05:59:18,054 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-11-07 05:59:18,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:59:18,063 INFO L225 Difference]: With dead ends: 2452 [2020-11-07 05:59:18,064 INFO L226 Difference]: Without dead ends: 1265 [2020-11-07 05:59:18,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-07 05:59:18,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2020-11-07 05:59:18,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1179. [2020-11-07 05:59:18,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1179 states. [2020-11-07 05:59:18,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 1407 transitions. [2020-11-07 05:59:18,281 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 1407 transitions. Word has length 157 [2020-11-07 05:59:18,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:59:18,282 INFO L481 AbstractCegarLoop]: Abstraction has 1179 states and 1407 transitions. [2020-11-07 05:59:18,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 05:59:18,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 1407 transitions. [2020-11-07 05:59:18,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 05:59:18,287 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:59:18,287 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:59:18,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 05:59:18,288 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:59:18,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:59:18,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1276118528, now seen corresponding path program 1 times [2020-11-07 05:59:18,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:59:18,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711727542] [2020-11-07 05:59:18,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:59:18,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:18,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:59:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:18,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:59:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:18,522 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:59:18,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1711727542] [2020-11-07 05:59:18,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:59:18,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 05:59:18,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914298657] [2020-11-07 05:59:18,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:59:18,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:59:18,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:59:18,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:59:18,525 INFO L87 Difference]: Start difference. First operand 1179 states and 1407 transitions. Second operand 7 states. [2020-11-07 05:59:21,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:59:21,326 INFO L93 Difference]: Finished difference Result 3151 states and 3959 transitions. [2020-11-07 05:59:21,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 05:59:21,327 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 159 [2020-11-07 05:59:21,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:59:21,346 INFO L225 Difference]: With dead ends: 3151 [2020-11-07 05:59:21,346 INFO L226 Difference]: Without dead ends: 2002 [2020-11-07 05:59:21,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 05:59:21,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2020-11-07 05:59:21,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1948. [2020-11-07 05:59:21,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1948 states. [2020-11-07 05:59:21,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 2350 transitions. [2020-11-07 05:59:21,781 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 2350 transitions. Word has length 159 [2020-11-07 05:59:21,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:59:21,782 INFO L481 AbstractCegarLoop]: Abstraction has 1948 states and 2350 transitions. [2020-11-07 05:59:21,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:59:21,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 2350 transitions. [2020-11-07 05:59:21,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-11-07 05:59:21,790 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:59:21,790 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:59:21,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 05:59:21,791 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:59:21,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:59:21,791 INFO L82 PathProgramCache]: Analyzing trace with hash -146615717, now seen corresponding path program 1 times [2020-11-07 05:59:21,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:59:21,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2051489431] [2020-11-07 05:59:21,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:59:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:21,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:59:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:21,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:59:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:21,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-11-07 05:59:21,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:22,050 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-07 05:59:22,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2051489431] [2020-11-07 05:59:22,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:59:22,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-07 05:59:22,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844989351] [2020-11-07 05:59:22,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:59:22,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:59:22,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:59:22,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:59:22,054 INFO L87 Difference]: Start difference. First operand 1948 states and 2350 transitions. Second operand 8 states. [2020-11-07 05:59:22,537 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-07 05:59:26,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:59:26,362 INFO L93 Difference]: Finished difference Result 5289 states and 6713 transitions. [2020-11-07 05:59:26,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 05:59:26,363 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 177 [2020-11-07 05:59:26,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:59:26,388 INFO L225 Difference]: With dead ends: 5289 [2020-11-07 05:59:26,388 INFO L226 Difference]: Without dead ends: 3521 [2020-11-07 05:59:26,396 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-11-07 05:59:26,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3521 states. [2020-11-07 05:59:27,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3521 to 3499. [2020-11-07 05:59:27,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3499 states. [2020-11-07 05:59:27,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3499 states to 3499 states and 4305 transitions. [2020-11-07 05:59:27,236 INFO L78 Accepts]: Start accepts. Automaton has 3499 states and 4305 transitions. Word has length 177 [2020-11-07 05:59:27,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:59:27,236 INFO L481 AbstractCegarLoop]: Abstraction has 3499 states and 4305 transitions. [2020-11-07 05:59:27,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:59:27,237 INFO L276 IsEmpty]: Start isEmpty. Operand 3499 states and 4305 transitions. [2020-11-07 05:59:27,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-11-07 05:59:27,250 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:59:27,250 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:59:27,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 05:59:27,250 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:59:27,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:59:27,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1540730415, now seen corresponding path program 1 times [2020-11-07 05:59:27,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:59:27,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010099760] [2020-11-07 05:59:27,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:59:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:27,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:59:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:27,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:59:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:27,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-11-07 05:59:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:27,575 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 19 proven. 16 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-11-07 05:59:27,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010099760] [2020-11-07 05:59:27,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:59:27,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 05:59:27,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339036266] [2020-11-07 05:59:27,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:59:27,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:59:27,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:59:27,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:59:27,582 INFO L87 Difference]: Start difference. First operand 3499 states and 4305 transitions. Second operand 7 states. [2020-11-07 05:59:27,835 WARN L194 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2020-11-07 05:59:28,856 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-07 05:59:33,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:59:33,089 INFO L93 Difference]: Finished difference Result 7994 states and 10053 transitions. [2020-11-07 05:59:33,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 05:59:33,096 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 186 [2020-11-07 05:59:33,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:59:33,128 INFO L225 Difference]: With dead ends: 7994 [2020-11-07 05:59:33,128 INFO L226 Difference]: Without dead ends: 4675 [2020-11-07 05:59:33,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-11-07 05:59:33,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4675 states. [2020-11-07 05:59:33,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4675 to 4555. [2020-11-07 05:59:33,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4555 states. [2020-11-07 05:59:33,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4555 states to 4555 states and 5634 transitions. [2020-11-07 05:59:33,931 INFO L78 Accepts]: Start accepts. Automaton has 4555 states and 5634 transitions. Word has length 186 [2020-11-07 05:59:33,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:59:33,931 INFO L481 AbstractCegarLoop]: Abstraction has 4555 states and 5634 transitions. [2020-11-07 05:59:33,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:59:33,932 INFO L276 IsEmpty]: Start isEmpty. Operand 4555 states and 5634 transitions. [2020-11-07 05:59:33,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-11-07 05:59:33,946 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:59:33,946 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:59:33,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 05:59:33,947 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:59:33,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:59:33,947 INFO L82 PathProgramCache]: Analyzing trace with hash -2108550011, now seen corresponding path program 1 times [2020-11-07 05:59:33,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:59:33,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [575689557] [2020-11-07 05:59:33,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:59:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:34,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:59:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:34,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:59:34,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:34,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-11-07 05:59:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:34,233 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-07 05:59:34,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [575689557] [2020-11-07 05:59:34,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:59:34,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-07 05:59:34,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570384628] [2020-11-07 05:59:34,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:59:34,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:59:34,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:59:34,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:59:34,237 INFO L87 Difference]: Start difference. First operand 4555 states and 5634 transitions. Second operand 8 states. [2020-11-07 05:59:37,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:59:37,606 INFO L93 Difference]: Finished difference Result 8959 states and 11139 transitions. [2020-11-07 05:59:37,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 05:59:37,607 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 190 [2020-11-07 05:59:37,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:59:37,635 INFO L225 Difference]: With dead ends: 8959 [2020-11-07 05:59:37,636 INFO L226 Difference]: Without dead ends: 4584 [2020-11-07 05:59:37,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-11-07 05:59:37,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4584 states. [2020-11-07 05:59:38,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4584 to 4413. [2020-11-07 05:59:38,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4413 states. [2020-11-07 05:59:38,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4413 states to 4413 states and 5306 transitions. [2020-11-07 05:59:38,398 INFO L78 Accepts]: Start accepts. Automaton has 4413 states and 5306 transitions. Word has length 190 [2020-11-07 05:59:38,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:59:38,398 INFO L481 AbstractCegarLoop]: Abstraction has 4413 states and 5306 transitions. [2020-11-07 05:59:38,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:59:38,398 INFO L276 IsEmpty]: Start isEmpty. Operand 4413 states and 5306 transitions. [2020-11-07 05:59:38,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-11-07 05:59:38,412 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:59:38,412 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:59:38,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 05:59:38,412 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:59:38,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:59:38,413 INFO L82 PathProgramCache]: Analyzing trace with hash -721391226, now seen corresponding path program 1 times [2020-11-07 05:59:38,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:59:38,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1244915814] [2020-11-07 05:59:38,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:59:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:38,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:59:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:38,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:59:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:38,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-11-07 05:59:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:39,068 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 33 proven. 16 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-07 05:59:39,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1244915814] [2020-11-07 05:59:39,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:59:39,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-11-07 05:59:39,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002052345] [2020-11-07 05:59:39,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-07 05:59:39,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:59:39,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-07 05:59:39,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-11-07 05:59:39,073 INFO L87 Difference]: Start difference. First operand 4413 states and 5306 transitions. Second operand 13 states. [2020-11-07 05:59:40,341 WARN L194 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-11-07 05:59:42,063 WARN L194 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-11-07 05:59:45,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:59:45,201 INFO L93 Difference]: Finished difference Result 9725 states and 11819 transitions. [2020-11-07 05:59:45,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-07 05:59:45,205 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 191 [2020-11-07 05:59:45,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:59:45,228 INFO L225 Difference]: With dead ends: 9725 [2020-11-07 05:59:45,228 INFO L226 Difference]: Without dead ends: 3912 [2020-11-07 05:59:45,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-11-07 05:59:45,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3912 states. [2020-11-07 05:59:45,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3912 to 3857. [2020-11-07 05:59:45,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3857 states. [2020-11-07 05:59:45,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3857 states to 3857 states and 4481 transitions. [2020-11-07 05:59:45,913 INFO L78 Accepts]: Start accepts. Automaton has 3857 states and 4481 transitions. Word has length 191 [2020-11-07 05:59:45,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:59:45,914 INFO L481 AbstractCegarLoop]: Abstraction has 3857 states and 4481 transitions. [2020-11-07 05:59:45,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-07 05:59:45,914 INFO L276 IsEmpty]: Start isEmpty. Operand 3857 states and 4481 transitions. [2020-11-07 05:59:45,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-11-07 05:59:45,924 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:59:45,925 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:59:45,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-07 05:59:45,925 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:59:45,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:59:45,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1031494938, now seen corresponding path program 1 times [2020-11-07 05:59:45,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:59:45,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [787446652] [2020-11-07 05:59:45,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:59:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:46,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:59:46,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:46,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:59:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:46,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-11-07 05:59:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:46,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-11-07 05:59:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:46,202 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 58 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-07 05:59:46,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [787446652] [2020-11-07 05:59:46,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:59:46,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-11-07 05:59:46,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275266735] [2020-11-07 05:59:46,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 05:59:46,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:59:46,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 05:59:46,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-07 05:59:46,205 INFO L87 Difference]: Start difference. First operand 3857 states and 4481 transitions. Second operand 9 states. [2020-11-07 05:59:48,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:59:48,049 INFO L93 Difference]: Finished difference Result 6984 states and 8173 transitions. [2020-11-07 05:59:48,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-07 05:59:48,050 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 208 [2020-11-07 05:59:48,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:59:48,068 INFO L225 Difference]: With dead ends: 6984 [2020-11-07 05:59:48,068 INFO L226 Difference]: Without dead ends: 3307 [2020-11-07 05:59:48,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-11-07 05:59:48,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3307 states. [2020-11-07 05:59:48,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3307 to 3151. [2020-11-07 05:59:48,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3151 states. [2020-11-07 05:59:48,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3151 states to 3151 states and 3632 transitions. [2020-11-07 05:59:48,695 INFO L78 Accepts]: Start accepts. Automaton has 3151 states and 3632 transitions. Word has length 208 [2020-11-07 05:59:48,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:59:48,696 INFO L481 AbstractCegarLoop]: Abstraction has 3151 states and 3632 transitions. [2020-11-07 05:59:48,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 05:59:48,696 INFO L276 IsEmpty]: Start isEmpty. Operand 3151 states and 3632 transitions. [2020-11-07 05:59:48,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-11-07 05:59:48,705 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:59:48,706 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:59:48,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-07 05:59:48,706 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:59:48,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:59:48,707 INFO L82 PathProgramCache]: Analyzing trace with hash 2635168, now seen corresponding path program 1 times [2020-11-07 05:59:48,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:59:48,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [501789644] [2020-11-07 05:59:48,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:59:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:48,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:59:48,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:48,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:59:48,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:49,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-11-07 05:59:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:49,324 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 80 proven. 16 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-07 05:59:49,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [501789644] [2020-11-07 05:59:49,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:59:49,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-11-07 05:59:49,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97239070] [2020-11-07 05:59:49,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-07 05:59:49,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:59:49,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-07 05:59:49,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-11-07 05:59:49,327 INFO L87 Difference]: Start difference. First operand 3151 states and 3632 transitions. Second operand 12 states. [2020-11-07 05:59:49,520 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-07 05:59:50,134 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 05:59:52,299 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-07 05:59:53,015 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-07 05:59:56,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:59:56,454 INFO L93 Difference]: Finished difference Result 7408 states and 8560 transitions. [2020-11-07 05:59:56,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-07 05:59:56,455 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 236 [2020-11-07 05:59:56,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:59:56,476 INFO L225 Difference]: With dead ends: 7408 [2020-11-07 05:59:56,477 INFO L226 Difference]: Without dead ends: 4232 [2020-11-07 05:59:56,486 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2020-11-07 05:59:56,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4232 states. [2020-11-07 05:59:57,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4232 to 3443. [2020-11-07 05:59:57,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3443 states. [2020-11-07 05:59:57,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3443 states to 3443 states and 3901 transitions. [2020-11-07 05:59:57,174 INFO L78 Accepts]: Start accepts. Automaton has 3443 states and 3901 transitions. Word has length 236 [2020-11-07 05:59:57,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:59:57,174 INFO L481 AbstractCegarLoop]: Abstraction has 3443 states and 3901 transitions. [2020-11-07 05:59:57,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-07 05:59:57,174 INFO L276 IsEmpty]: Start isEmpty. Operand 3443 states and 3901 transitions. [2020-11-07 05:59:57,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-11-07 05:59:57,183 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:59:57,184 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:59:57,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-07 05:59:57,184 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:59:57,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:59:57,185 INFO L82 PathProgramCache]: Analyzing trace with hash -2142153373, now seen corresponding path program 1 times [2020-11-07 05:59:57,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:59:57,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [991746220] [2020-11-07 05:59:57,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:59:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:57,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:59:57,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:57,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:59:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:57,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-11-07 05:59:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:57,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-07 05:59:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:59:57,513 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 125 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-07 05:59:57,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [991746220] [2020-11-07 05:59:57,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:59:57,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-07 05:59:57,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885398685] [2020-11-07 05:59:57,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:59:57,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:59:57,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:59:57,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:59:57,516 INFO L87 Difference]: Start difference. First operand 3443 states and 3901 transitions. Second operand 8 states. [2020-11-07 06:00:00,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:00:00,664 INFO L93 Difference]: Finished difference Result 6547 states and 7420 transitions. [2020-11-07 06:00:00,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 06:00:00,668 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 262 [2020-11-07 06:00:00,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:00:00,679 INFO L225 Difference]: With dead ends: 6547 [2020-11-07 06:00:00,680 INFO L226 Difference]: Without dead ends: 2253 [2020-11-07 06:00:00,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-11-07 06:00:00,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2253 states. [2020-11-07 06:00:01,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2253 to 2101. [2020-11-07 06:00:01,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2101 states. [2020-11-07 06:00:01,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2101 states to 2101 states and 2226 transitions. [2020-11-07 06:00:01,226 INFO L78 Accepts]: Start accepts. Automaton has 2101 states and 2226 transitions. Word has length 262 [2020-11-07 06:00:01,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:00:01,227 INFO L481 AbstractCegarLoop]: Abstraction has 2101 states and 2226 transitions. [2020-11-07 06:00:01,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 06:00:01,227 INFO L276 IsEmpty]: Start isEmpty. Operand 2101 states and 2226 transitions. [2020-11-07 06:00:01,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-11-07 06:00:01,235 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:00:01,235 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:00:01,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-07 06:00:01,235 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:00:01,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:00:01,236 INFO L82 PathProgramCache]: Analyzing trace with hash -755241556, now seen corresponding path program 1 times [2020-11-07 06:00:01,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:00:01,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352075852] [2020-11-07 06:00:01,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:00:01,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:00:01,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:00:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:00:01,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 06:00:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:00:01,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 06:00:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:00:01,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-11-07 06:00:01,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:00:02,054 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 155 proven. 26 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-11-07 06:00:02,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1352075852] [2020-11-07 06:00:02,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:00:02,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-11-07 06:00:02,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864501371] [2020-11-07 06:00:02,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-07 06:00:02,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:00:02,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-07 06:00:02,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-11-07 06:00:02,057 INFO L87 Difference]: Start difference. First operand 2101 states and 2226 transitions. Second operand 13 states. [2020-11-07 06:00:03,070 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-07 06:00:03,731 WARN L194 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-11-07 06:00:04,404 WARN L194 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-11-07 06:00:05,256 WARN L194 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-11-07 06:00:07,471 WARN L194 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-11-07 06:00:08,060 WARN L194 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-11-07 06:00:08,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:00:08,494 INFO L93 Difference]: Finished difference Result 5637 states and 6029 transitions. [2020-11-07 06:00:08,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-11-07 06:00:08,500 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 304 [2020-11-07 06:00:08,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:00:08,506 INFO L225 Difference]: With dead ends: 5637 [2020-11-07 06:00:08,506 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 06:00:08,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=219, Invalid=593, Unknown=0, NotChecked=0, Total=812 [2020-11-07 06:00:08,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 06:00:08,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 06:00:08,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 06:00:08,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 06:00:08,519 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 304 [2020-11-07 06:00:08,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:00:08,519 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 06:00:08,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-07 06:00:08,519 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 06:00:08,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 06:00:08,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-07 06:00:08,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 06:00:17,556 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 116 [2020-11-07 06:00:23,150 WARN L194 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 111 [2020-11-07 06:00:26,250 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 115 [2020-11-07 06:01:42,413 WARN L194 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 161 DAG size of output: 74 [2020-11-07 06:01:43,356 WARN L194 SmtUtils]: Spent 933.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 80 [2020-11-07 06:01:46,077 WARN L194 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:01:47,930 WARN L194 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 174 DAG size of output: 77 [2020-11-07 06:01:49,386 WARN L194 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 163 DAG size of output: 69 [2020-11-07 06:01:52,066 WARN L194 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:01:54,749 WARN L194 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:01:57,438 WARN L194 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:01:58,893 WARN L194 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 163 DAG size of output: 69 [2020-11-07 06:02:00,352 WARN L194 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 163 DAG size of output: 69 [2020-11-07 06:02:01,458 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 159 DAG size of output: 67 [2020-11-07 06:02:04,189 WARN L194 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 218 DAG size of output: 82 [2020-11-07 06:02:04,840 WARN L194 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:02:05,751 WARN L194 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 67 [2020-11-07 06:02:07,162 WARN L194 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 176 DAG size of output: 71 [2020-11-07 06:02:08,039 WARN L194 SmtUtils]: Spent 870.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 75 [2020-11-07 06:02:09,200 WARN L194 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 125 DAG size of output: 76 [2020-11-07 06:02:09,868 WARN L194 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:02:10,649 WARN L194 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 68 [2020-11-07 06:02:11,299 WARN L194 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:02:11,949 WARN L194 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:02:15,098 WARN L194 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:02:18,270 WARN L194 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:02:19,349 WARN L194 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 130 DAG size of output: 77 [2020-11-07 06:02:20,013 WARN L194 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:02:21,582 WARN L194 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 161 DAG size of output: 74 [2020-11-07 06:02:23,063 WARN L194 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 163 DAG size of output: 69 [2020-11-07 06:02:25,757 WARN L194 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 218 DAG size of output: 82 [2020-11-07 06:02:26,993 WARN L194 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 176 DAG size of output: 71 [2020-11-07 06:02:28,473 WARN L194 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 172 DAG size of output: 73 [2020-11-07 06:02:31,694 WARN L194 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:02:32,815 WARN L194 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 173 DAG size of output: 77 [2020-11-07 06:02:33,870 WARN L194 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 127 DAG size of output: 72 [2020-11-07 06:02:34,651 WARN L194 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 67 [2020-11-07 06:02:35,371 WARN L194 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 67 [2020-11-07 06:02:36,298 WARN L194 SmtUtils]: Spent 920.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 77 [2020-11-07 06:02:39,534 WARN L194 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:02:40,196 WARN L194 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:02:40,948 WARN L194 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 70 [2020-11-07 06:02:44,135 WARN L194 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:02:44,921 WARN L194 SmtUtils]: Spent 779.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 67 [2020-11-07 06:02:45,580 WARN L194 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:02:48,752 WARN L194 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:02:49,912 WARN L194 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 122 DAG size of output: 73 [2020-11-07 06:02:51,307 WARN L194 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 171 DAG size of output: 74 [2020-11-07 06:02:54,498 WARN L194 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:02:57,689 WARN L194 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:02:58,403 WARN L194 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2020-11-07 06:02:59,691 WARN L194 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 167 DAG size of output: 71 [2020-11-07 06:03:00,788 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 131 DAG size of output: 74 [2020-11-07 06:03:01,536 WARN L194 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 70 [2020-11-07 06:03:02,202 WARN L194 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:03:03,318 WARN L194 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 123 DAG size of output: 74 [2020-11-07 06:03:04,024 WARN L194 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 67 [2020-11-07 06:03:04,788 WARN L194 SmtUtils]: Spent 757.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 72 [2020-11-07 06:03:05,450 WARN L194 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:03:06,114 WARN L194 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:03:09,317 WARN L194 SmtUtils]: Spent 3.19 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:03:12,514 WARN L194 SmtUtils]: Spent 3.19 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:03:15,592 WARN L194 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 220 DAG size of output: 85 [2020-11-07 06:03:16,847 WARN L194 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 174 DAG size of output: 67 [2020-11-07 06:03:17,726 WARN L194 SmtUtils]: Spent 873.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2020-11-07 06:03:20,985 WARN L194 SmtUtils]: Spent 3.25 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:03:21,919 WARN L194 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 67 [2020-11-07 06:03:22,986 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 160 DAG size of output: 68 [2020-11-07 06:03:24,561 WARN L194 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 123 DAG size of output: 78 [2020-11-07 06:03:27,305 WARN L194 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:03:28,429 WARN L194 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 159 DAG size of output: 67 [2020-11-07 06:03:31,171 WARN L194 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:03:33,927 WARN L194 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:03:36,662 WARN L194 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 218 DAG size of output: 82 [2020-11-07 06:03:37,723 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 160 DAG size of output: 68 [2020-11-07 06:03:38,449 WARN L194 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2020-11-07 06:03:41,676 WARN L194 SmtUtils]: Spent 3.22 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:03:43,037 WARN L194 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 172 DAG size of output: 77 [2020-11-07 06:03:45,136 WARN L194 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 178 DAG size of output: 79 [2020-11-07 06:03:45,806 WARN L194 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:03:46,478 WARN L194 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:03:47,616 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 126 DAG size of output: 72 [2020-11-07 06:03:48,288 WARN L194 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:03:48,957 WARN L194 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:03:52,189 WARN L194 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:03:55,424 WARN L194 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:03:56,213 WARN L194 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 67 [2020-11-07 06:03:57,292 WARN L194 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 117 DAG size of output: 70 [2020-11-07 06:03:57,967 WARN L194 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:03:59,074 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 119 DAG size of output: 69 [2020-11-07 06:04:00,806 WARN L194 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 174 DAG size of output: 78 [2020-11-07 06:04:03,572 WARN L194 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:04:06,810 WARN L194 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:04:10,141 WARN L194 SmtUtils]: Spent 3.32 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:04:10,950 WARN L194 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 69 [2020-11-07 06:04:12,087 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 159 DAG size of output: 67 [2020-11-07 06:04:13,162 WARN L194 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 160 DAG size of output: 68 [2020-11-07 06:04:15,922 WARN L194 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:04:17,526 WARN L194 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 161 DAG size of output: 74 [2020-11-07 06:04:20,293 WARN L194 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:04:23,061 WARN L194 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:04:23,738 WARN L194 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:04:24,963 WARN L194 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 167 DAG size of output: 72 [2020-11-07 06:04:25,642 WARN L194 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:04:26,327 WARN L194 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:04:27,647 WARN L194 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 170 DAG size of output: 71 [2020-11-07 06:04:30,935 WARN L194 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:04:31,614 WARN L194 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:04:34,868 WARN L194 SmtUtils]: Spent 3.25 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:04:35,430 WARN L194 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2020-11-07 06:04:36,111 WARN L194 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:04:37,511 WARN L194 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 170 DAG size of output: 71 [2020-11-07 06:04:40,781 WARN L194 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:04:44,050 WARN L194 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:04:47,367 WARN L194 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:04:48,051 WARN L194 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:04:49,725 WARN L194 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 172 DAG size of output: 71 [2020-11-07 06:04:50,415 WARN L194 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:04:53,192 WARN L194 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 218 DAG size of output: 82 [2020-11-07 06:04:54,819 WARN L194 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 161 DAG size of output: 74 [2020-11-07 06:04:55,911 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 160 DAG size of output: 68 [2020-11-07 06:04:57,441 WARN L194 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 163 DAG size of output: 69 [2020-11-07 06:04:58,584 WARN L194 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 173 DAG size of output: 69 [2020-11-07 06:04:59,830 WARN L194 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 123 DAG size of output: 80 [2020-11-07 06:05:00,989 WARN L194 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 169 DAG size of output: 70 [2020-11-07 06:05:02,518 WARN L194 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 180 DAG size of output: 72 [2020-11-07 06:05:03,208 WARN L194 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:05:04,624 WARN L194 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 174 DAG size of output: 66 [2020-11-07 06:05:05,694 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 166 DAG size of output: 67 [2020-11-07 06:05:06,376 WARN L194 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:05:07,442 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 120 DAG size of output: 70 [2020-11-07 06:05:08,134 WARN L194 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:05:11,417 WARN L194 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:05:12,109 WARN L194 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:05:15,402 WARN L194 SmtUtils]: Spent 3.29 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:05:18,675 WARN L194 SmtUtils]: Spent 3.27 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:05:19,954 WARN L194 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 173 DAG size of output: 67 [2020-11-07 06:05:20,645 WARN L194 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:05:21,733 WARN L194 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 122 DAG size of output: 73 [2020-11-07 06:05:22,697 WARN L194 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 67 [2020-11-07 06:05:24,252 WARN L194 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 178 DAG size of output: 79 [2020-11-07 06:05:25,544 WARN L194 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 123 DAG size of output: 78 [2020-11-07 06:05:26,556 WARN L194 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 121 DAG size of output: 68 [2020-11-07 06:05:27,251 WARN L194 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:05:28,063 WARN L194 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 67 [2020-11-07 06:05:28,755 WARN L194 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:05:29,851 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 160 DAG size of output: 68 [2020-11-07 06:05:30,952 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 160 DAG size of output: 68 [2020-11-07 06:05:33,766 WARN L194 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:05:34,864 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 160 DAG size of output: 68 [2020-11-07 06:05:37,682 WARN L194 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 218 DAG size of output: 82 [2020-11-07 06:05:38,856 WARN L194 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 159 DAG size of output: 67 [2020-11-07 06:05:40,229 WARN L194 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 170 DAG size of output: 71 [2020-11-07 06:05:40,983 WARN L194 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 67 [2020-11-07 06:05:41,677 WARN L194 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:05:44,981 WARN L194 SmtUtils]: Spent 3.30 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:05:45,945 WARN L194 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 62 [2020-11-07 06:05:47,119 WARN L194 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 127 DAG size of output: 71 [2020-11-07 06:05:47,815 WARN L194 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:05:51,133 WARN L194 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:05:52,240 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 160 DAG size of output: 68 [2020-11-07 06:05:55,070 WARN L194 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:05:57,926 WARN L194 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:05:58,745 WARN L194 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 67 [2020-11-07 06:06:01,570 WARN L194 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:06:03,128 WARN L194 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 163 DAG size of output: 69 [2020-11-07 06:06:05,948 WARN L194 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:06:07,598 WARN L194 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 161 DAG size of output: 74 [2020-11-07 06:06:09,243 WARN L194 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 161 DAG size of output: 74 [2020-11-07 06:06:10,905 WARN L194 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 161 DAG size of output: 74 [2020-11-07 06:06:13,735 WARN L194 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 218 DAG size of output: 82 [2020-11-07 06:06:14,918 WARN L194 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 159 DAG size of output: 67 [2020-11-07 06:06:17,748 WARN L194 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 218 DAG size of output: 82 [2020-11-07 06:06:18,446 WARN L194 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:06:20,084 WARN L194 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 179 DAG size of output: 72 [2020-11-07 06:06:20,790 WARN L194 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:06:24,124 WARN L194 SmtUtils]: Spent 3.33 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:06:24,825 WARN L194 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:06:25,524 WARN L194 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:06:26,350 WARN L194 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 66 [2020-11-07 06:06:29,713 WARN L194 SmtUtils]: Spent 3.36 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:06:33,051 WARN L194 SmtUtils]: Spent 3.33 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:06:34,499 WARN L194 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 170 DAG size of output: 71 [2020-11-07 06:06:37,702 WARN L194 SmtUtils]: Spent 3.19 s on a formula simplification. DAG size of input: 220 DAG size of output: 85 [2020-11-07 06:06:38,830 WARN L194 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 160 DAG size of output: 68 [2020-11-07 06:06:41,679 WARN L194 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:06:44,518 WARN L194 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:06:47,969 WARN L194 SmtUtils]: Spent 3.34 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:06:48,826 WARN L194 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 74 [2020-11-07 06:06:49,540 WARN L194 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:06:52,870 WARN L194 SmtUtils]: Spent 3.32 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:06:54,476 WARN L194 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 122 DAG size of output: 78 [2020-11-07 06:06:57,837 WARN L194 SmtUtils]: Spent 3.35 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:06:59,284 WARN L194 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 129 DAG size of output: 74 [2020-11-07 06:07:00,327 WARN L194 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 124 DAG size of output: 69 [2020-11-07 06:07:01,041 WARN L194 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:07:01,747 WARN L194 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:07:02,796 WARN L194 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 123 DAG size of output: 67 [2020-11-07 06:07:03,508 WARN L194 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:07:04,642 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 117 DAG size of output: 71 [2020-11-07 06:07:05,933 WARN L194 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 175 DAG size of output: 69 [2020-11-07 06:07:06,855 WARN L194 SmtUtils]: Spent 915.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 55 [2020-11-07 06:07:07,564 WARN L194 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:07:08,270 WARN L194 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:07:09,048 WARN L194 SmtUtils]: Spent 772.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 65 [2020-11-07 06:07:12,406 WARN L194 SmtUtils]: Spent 3.35 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:07:13,162 WARN L194 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 68 [2020-11-07 06:07:14,851 WARN L194 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 123 DAG size of output: 78 [2020-11-07 06:07:15,726 WARN L194 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 67 [2020-11-07 06:07:16,490 WARN L194 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 68 [2020-11-07 06:07:19,869 WARN L194 SmtUtils]: Spent 3.37 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:07:23,243 WARN L194 SmtUtils]: Spent 3.36 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:07:24,089 WARN L194 SmtUtils]: Spent 839.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 72 [2020-11-07 06:07:25,107 WARN L194 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 125 DAG size of output: 79 [2020-11-07 06:07:26,392 WARN L194 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 172 DAG size of output: 72 [2020-11-07 06:07:26,995 WARN L194 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2020-11-07 06:07:27,706 WARN L194 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:07:29,167 WARN L194 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 174 DAG size of output: 66 [2020-11-07 06:07:29,937 WARN L194 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 67 [2020-11-07 06:07:31,016 WARN L194 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 122 DAG size of output: 68 [2020-11-07 06:07:34,395 WARN L194 SmtUtils]: Spent 3.37 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:07:37,782 WARN L194 SmtUtils]: Spent 3.38 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:07:39,258 WARN L194 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 130 DAG size of output: 72 [2020-11-07 06:07:42,635 WARN L194 SmtUtils]: Spent 3.37 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:07:46,014 WARN L194 SmtUtils]: Spent 3.37 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:07:46,817 WARN L194 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 66 [2020-11-07 06:07:50,190 WARN L194 SmtUtils]: Spent 3.37 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:07:51,668 WARN L194 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 174 DAG size of output: 72 [2020-11-07 06:07:55,057 WARN L194 SmtUtils]: Spent 3.38 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:07:56,260 WARN L194 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 159 DAG size of output: 67 [2020-11-07 06:07:59,152 WARN L194 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:08:02,050 WARN L194 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:08:04,947 WARN L194 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:08:06,107 WARN L194 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 160 DAG size of output: 68 [2020-11-07 06:08:07,823 WARN L194 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 161 DAG size of output: 74 [2020-11-07 06:08:09,033 WARN L194 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 159 DAG size of output: 67 [2020-11-07 06:08:11,937 WARN L194 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 218 DAG size of output: 82 [2020-11-07 06:08:13,082 WARN L194 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 160 DAG size of output: 68 [2020-11-07 06:08:14,333 WARN L194 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 126 DAG size of output: 72 [2020-11-07 06:08:15,522 WARN L194 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 129 DAG size of output: 72 [2020-11-07 06:08:16,241 WARN L194 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:08:17,695 WARN L194 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 116 DAG size of output: 70 [2020-11-07 06:08:18,416 WARN L194 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:08:19,135 WARN L194 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:08:19,853 WARN L194 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:08:20,573 WARN L194 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:08:21,302 WARN L194 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:08:22,766 WARN L194 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 121 DAG size of output: 73 [2020-11-07 06:08:23,634 WARN L194 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 68 [2020-11-07 06:08:24,665 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 173 DAG size of output: 76 [2020-11-07 06:08:27,284 WARN L194 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 174 DAG size of output: 76 [2020-11-07 06:08:28,499 WARN L194 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 159 DAG size of output: 67 [2020-11-07 06:08:31,545 WARN L194 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 218 DAG size of output: 84 [2020-11-07 06:08:32,934 WARN L194 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 174 DAG size of output: 71 [2020-11-07 06:08:33,817 WARN L194 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 75 [2020-11-07 06:08:34,926 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 120 DAG size of output: 68 [2020-11-07 06:08:38,347 WARN L194 SmtUtils]: Spent 3.41 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:08:39,853 WARN L194 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 175 DAG size of output: 77 [2020-11-07 06:08:41,250 WARN L194 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 167 DAG size of output: 71 [2020-11-07 06:08:41,977 WARN L194 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:08:42,815 WARN L194 SmtUtils]: Spent 831.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 67 [2020-11-07 06:08:44,054 WARN L194 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 126 DAG size of output: 75 [2020-11-07 06:08:44,775 WARN L194 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:08:45,504 WARN L194 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:08:47,119 WARN L194 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 172 DAG size of output: 73 [2020-11-07 06:08:47,845 WARN L194 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:08:48,703 WARN L194 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 67 [2020-11-07 06:08:52,122 WARN L194 SmtUtils]: Spent 3.41 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:08:55,542 WARN L194 SmtUtils]: Spent 3.41 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:08:56,572 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 170 DAG size of output: 55 [2020-11-07 06:09:00,004 WARN L194 SmtUtils]: Spent 3.42 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:09:02,928 WARN L194 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:09:04,061 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 165 DAG size of output: 66 [2020-11-07 06:09:05,290 WARN L194 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 114 DAG size of output: 68 [2020-11-07 06:09:06,033 WARN L194 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:09:06,768 WARN L194 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:09:07,909 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 120 DAG size of output: 68 [2020-11-07 06:09:08,921 WARN L194 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 169 DAG size of output: 67 [2020-11-07 06:09:12,351 WARN L194 SmtUtils]: Spent 3.42 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:09:13,077 WARN L194 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:09:13,809 WARN L194 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:09:17,235 WARN L194 SmtUtils]: Spent 3.42 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:09:17,964 WARN L194 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:09:21,408 WARN L194 SmtUtils]: Spent 3.44 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:09:22,212 WARN L194 SmtUtils]: Spent 798.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 63 [2020-11-07 06:09:22,942 WARN L194 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:09:26,407 WARN L194 SmtUtils]: Spent 3.46 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:09:27,267 WARN L194 SmtUtils]: Spent 854.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 70 [2020-11-07 06:09:28,329 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 119 DAG size of output: 64 [2020-11-07 06:09:29,474 WARN L194 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 118 DAG size of output: 67 [2020-11-07 06:09:30,355 WARN L194 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 72 [2020-11-07 06:09:31,247 WARN L194 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 75 [2020-11-07 06:09:33,440 WARN L194 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 178 DAG size of output: 79 [2020-11-07 06:09:34,172 WARN L194 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:09:35,713 WARN L194 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 171 DAG size of output: 74 [2020-11-07 06:09:36,961 WARN L194 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 125 DAG size of output: 77 [2020-11-07 06:09:38,330 WARN L194 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 167 DAG size of output: 71 [2020-11-07 06:09:39,063 WARN L194 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:09:40,713 WARN L194 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 172 DAG size of output: 73 [2020-11-07 06:09:41,443 WARN L194 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:09:42,183 WARN L194 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:09:43,783 WARN L194 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 116 DAG size of output: 70 [2020-11-07 06:09:44,781 WARN L194 SmtUtils]: Spent 992.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 68 [2020-11-07 06:09:45,572 WARN L194 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 68 [2020-11-07 06:09:49,053 WARN L194 SmtUtils]: Spent 3.47 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:09:49,250 WARN L194 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 34 [2020-11-07 06:09:52,720 WARN L194 SmtUtils]: Spent 3.46 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:09:53,456 WARN L194 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:09:54,866 WARN L194 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 175 DAG size of output: 79 [2020-11-07 06:09:55,596 WARN L194 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:09:56,330 WARN L194 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:09:58,098 WARN L194 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 178 DAG size of output: 71 [2020-11-07 06:09:58,837 WARN L194 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:09:59,645 WARN L194 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 66 [2020-11-07 06:10:00,787 WARN L194 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 166 DAG size of output: 67 [2020-11-07 06:10:01,533 WARN L194 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:10:03,330 WARN L194 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 172 DAG size of output: 71 [2020-11-07 06:10:04,397 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 121 DAG size of output: 66 [2020-11-07 06:10:05,139 WARN L194 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:10:08,601 WARN L194 SmtUtils]: Spent 3.45 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:10:09,837 WARN L194 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 159 DAG size of output: 67 [2020-11-07 06:10:10,902 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 119 DAG size of output: 64 [2020-11-07 06:10:13,905 WARN L194 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:10:17,219 WARN L194 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 220 DAG size of output: 85 [2020-11-07 06:10:18,717 WARN L194 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 174 DAG size of output: 66 [2020-11-07 06:10:21,689 WARN L194 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:10:23,443 WARN L194 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 161 DAG size of output: 74 [2020-11-07 06:10:24,182 WARN L194 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:10:25,360 WARN L194 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 160 DAG size of output: 68 [2020-11-07 06:10:26,099 WARN L194 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:10:29,081 WARN L194 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:10:30,847 WARN L194 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 161 DAG size of output: 74 [2020-11-07 06:10:33,834 WARN L194 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 218 DAG size of output: 82 [2020-11-07 06:10:36,817 WARN L194 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 218 DAG size of output: 82 [2020-11-07 06:10:37,995 WARN L194 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 160 DAG size of output: 68 [2020-11-07 06:10:40,977 WARN L194 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 218 DAG size of output: 82 [2020-11-07 06:10:43,962 WARN L194 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 218 DAG size of output: 82 [2020-11-07 06:10:45,713 WARN L194 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 161 DAG size of output: 74 [2020-11-07 06:10:46,968 WARN L194 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 115 DAG size of output: 69 [2020-11-07 06:10:48,125 WARN L194 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 165 DAG size of output: 66 [2020-11-07 06:10:48,926 WARN L194 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 67 [2020-11-07 06:10:49,671 WARN L194 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 55 [2020-11-07 06:10:50,861 WARN L194 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 160 DAG size of output: 68 [2020-11-07 06:10:53,848 WARN L194 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:10:57,109 WARN L194 SmtUtils]: Spent 3.25 s on a formula simplification. DAG size of input: 219 DAG size of output: 86 [2020-11-07 06:10:58,044 WARN L194 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 66 [2020-11-07 06:11:01,532 WARN L194 SmtUtils]: Spent 3.48 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:11:04,523 WARN L194 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:11:06,278 WARN L194 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 161 DAG size of output: 74 [2020-11-07 06:11:08,040 WARN L194 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 161 DAG size of output: 74 [2020-11-07 06:11:09,815 WARN L194 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 161 DAG size of output: 74 [2020-11-07 06:11:12,819 WARN L194 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 217 DAG size of output: 82 [2020-11-07 06:11:13,435 WARN L194 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2020-11-07 06:11:14,053 WARN L194 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2020-11-07 06:11:14,674 WARN L194 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2020-11-07 06:11:15,327 WARN L194 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2020-11-07 06:11:29,800 WARN L194 SmtUtils]: Spent 14.46 s on a formula simplification. DAG size of input: 303 DAG size of output: 157 [2020-11-07 06:11:44,655 WARN L194 SmtUtils]: Spent 14.80 s on a formula simplification. DAG size of input: 303 DAG size of output: 157 [2020-11-07 06:11:48,186 WARN L194 SmtUtils]: Spent 3.52 s on a formula simplification. DAG size of input: 221 DAG size of output: 86 [2020-11-07 06:11:50,337 WARN L194 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 126 DAG size of output: 75 [2020-11-07 06:11:52,180 WARN L194 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 172 DAG size of output: 71