/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/Problem01_label00.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 01:09:43,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 01:09:43,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 01:09:43,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 01:09:43,504 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 01:09:43,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 01:09:43,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 01:09:43,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 01:09:43,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 01:09:43,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 01:09:43,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 01:09:43,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 01:09:43,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 01:09:43,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 01:09:43,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 01:09:43,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 01:09:43,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 01:09:43,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 01:09:43,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 01:09:43,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 01:09:43,567 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 01:09:43,588 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 01:09:43,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 01:09:43,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 01:09:43,593 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 01:09:43,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 01:09:43,594 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 01:09:43,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 01:09:43,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 01:09:43,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 01:09:43,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 01:09:43,596 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 01:09:43,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 01:09:43,596 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 01:09:43,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 01:09:43,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 01:09:43,597 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 01:09:43,597 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 01:09:43,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 01:09:43,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 01:09:43,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 01:09:43,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 01:09:43,598 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 01:09:43,599 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 01:09:43,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 01:09:44,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 01:09:44,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 01:09:44,031 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 01:09:44,032 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 01:09:44,033 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label00.c [2020-10-24 01:09:44,096 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1b12a5b6/ade252839c5045288eb04d87fdd9b40e/FLAG4c45af346 [2020-10-24 01:09:44,881 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 01:09:44,882 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label00.c [2020-10-24 01:09:44,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1b12a5b6/ade252839c5045288eb04d87fdd9b40e/FLAG4c45af346 [2020-10-24 01:09:45,061 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1b12a5b6/ade252839c5045288eb04d87fdd9b40e [2020-10-24 01:09:45,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 01:09:45,075 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 01:09:45,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 01:09:45,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 01:09:45,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 01:09:45,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:09:45" (1/1) ... [2020-10-24 01:09:45,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5433dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:45, skipping insertion in model container [2020-10-24 01:09:45,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:09:45" (1/1) ... [2020-10-24 01:09:45,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 01:09:45,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 01:09:45,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:09:45,567 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 01:09:45,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:09:45,829 INFO L208 MainTranslator]: Completed translation [2020-10-24 01:09:45,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:45 WrapperNode [2020-10-24 01:09:45,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 01:09:45,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 01:09:45,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 01:09:45,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 01:09:45,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:45" (1/1) ... [2020-10-24 01:09:45,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:45" (1/1) ... [2020-10-24 01:09:45,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:45" (1/1) ... [2020-10-24 01:09:45,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:45" (1/1) ... [2020-10-24 01:09:45,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:45" (1/1) ... [2020-10-24 01:09:45,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:45" (1/1) ... [2020-10-24 01:09:45,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:45" (1/1) ... [2020-10-24 01:09:45,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 01:09:45,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 01:09:45,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 01:09:45,972 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 01:09:45,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:45" (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 [2020-10-24 01:09:46,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 01:09:46,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 01:09:46,050 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 01:09:46,050 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-24 01:09:46,050 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 01:09:46,051 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-24 01:09:46,051 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 01:09:46,051 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 01:09:46,051 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 01:09:46,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 01:09:46,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 01:09:46,052 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-24 01:09:46,052 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 01:09:46,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 01:09:46,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 01:09:46,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 01:09:46,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 01:09:46,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 01:09:46,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 01:09:47,725 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 01:09:47,725 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-24 01:09:47,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:09:47 BoogieIcfgContainer [2020-10-24 01:09:47,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 01:09:47,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 01:09:47,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 01:09:47,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 01:09:47,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:09:45" (1/3) ... [2020-10-24 01:09:47,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c2003f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:09:47, skipping insertion in model container [2020-10-24 01:09:47,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:45" (2/3) ... [2020-10-24 01:09:47,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c2003f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:09:47, skipping insertion in model container [2020-10-24 01:09:47,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:09:47" (3/3) ... [2020-10-24 01:09:47,738 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label00.c [2020-10-24 01:09:47,750 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 01:09:47,755 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 01:09:47,769 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 01:09:47,794 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 01:09:47,794 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 01:09:47,794 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 01:09:47,794 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 01:09:47,794 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 01:09:47,795 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 01:09:47,795 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 01:09:47,795 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 01:09:47,821 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states. [2020-10-24 01:09:47,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-24 01:09:47,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:09:47,851 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:09:47,852 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:09:47,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:09:47,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1500080742, now seen corresponding path program 1 times [2020-10-24 01:09:47,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:09:47,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332271758] [2020-10-24 01:09:47,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:09:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:09:48,536 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-24 01:09:48,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:09:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:09:48,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:09:48,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332271758] [2020-10-24 01:09:48,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:09:48,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 01:09:48,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918014736] [2020-10-24 01:09:48,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 01:09:48,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:09:48,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 01:09:48,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 01:09:48,661 INFO L87 Difference]: Start difference. First operand 537 states. Second operand 4 states. [2020-10-24 01:09:48,872 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:09:51,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:09:51,517 INFO L93 Difference]: Finished difference Result 1353 states and 1752 transitions. [2020-10-24 01:09:51,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 01:09:51,522 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 145 [2020-10-24 01:09:51,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:09:51,566 INFO L225 Difference]: With dead ends: 1353 [2020-10-24 01:09:51,566 INFO L226 Difference]: Without dead ends: 750 [2020-10-24 01:09:51,594 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 01:09:51,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2020-10-24 01:09:51,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 673. [2020-10-24 01:09:51,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 673 states. [2020-10-24 01:09:51,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 789 transitions. [2020-10-24 01:09:51,808 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 789 transitions. Word has length 145 [2020-10-24 01:09:51,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:09:51,809 INFO L481 AbstractCegarLoop]: Abstraction has 673 states and 789 transitions. [2020-10-24 01:09:51,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 01:09:51,810 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 789 transitions. [2020-10-24 01:09:51,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-24 01:09:51,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:09:51,817 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:09:51,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 01:09:51,818 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:09:51,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:09:51,819 INFO L82 PathProgramCache]: Analyzing trace with hash -2014521500, now seen corresponding path program 1 times [2020-10-24 01:09:51,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:09:51,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48377714] [2020-10-24 01:09:51,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:09:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:09:52,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:09:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:09:52,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:09:52,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:09:52,578 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:09:52,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [48377714] [2020-10-24 01:09:52,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:09:52,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-24 01:09:52,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779196657] [2020-10-24 01:09:52,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-24 01:09:52,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:09:52,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-24 01:09:52,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-24 01:09:52,588 INFO L87 Difference]: Start difference. First operand 673 states and 789 transitions. Second operand 11 states. [2020-10-24 01:09:52,816 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-24 01:09:53,272 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-24 01:09:53,850 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-24 01:09:57,731 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-24 01:09:58,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:09:58,315 INFO L93 Difference]: Finished difference Result 2531 states and 3317 transitions. [2020-10-24 01:09:58,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-24 01:09:58,316 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 166 [2020-10-24 01:09:58,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:09:58,337 INFO L225 Difference]: With dead ends: 2531 [2020-10-24 01:09:58,338 INFO L226 Difference]: Without dead ends: 1631 [2020-10-24 01:09:58,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=118, Invalid=188, Unknown=0, NotChecked=0, Total=306 [2020-10-24 01:09:58,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2020-10-24 01:09:58,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1399. [2020-10-24 01:09:58,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1399 states. [2020-10-24 01:09:58,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1399 states to 1399 states and 1646 transitions. [2020-10-24 01:09:58,707 INFO L78 Accepts]: Start accepts. Automaton has 1399 states and 1646 transitions. Word has length 166 [2020-10-24 01:09:58,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:09:58,708 INFO L481 AbstractCegarLoop]: Abstraction has 1399 states and 1646 transitions. [2020-10-24 01:09:58,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-24 01:09:58,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1399 states and 1646 transitions. [2020-10-24 01:09:58,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-24 01:09:58,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:09:58,719 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:09:58,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 01:09:58,720 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:09:58,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:09:58,723 INFO L82 PathProgramCache]: Analyzing trace with hash -402140788, now seen corresponding path program 1 times [2020-10-24 01:09:58,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:09:58,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [777005182] [2020-10-24 01:09:58,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:09:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:09:59,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:09:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:09:59,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:09:59,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:09:59,446 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:09:59,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [777005182] [2020-10-24 01:09:59,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:09:59,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-24 01:09:59,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230776246] [2020-10-24 01:09:59,456 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-24 01:09:59,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:09:59,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-24 01:09:59,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-24 01:09:59,457 INFO L87 Difference]: Start difference. First operand 1399 states and 1646 transitions. Second operand 11 states. [2020-10-24 01:09:59,919 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:10:00,543 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-24 01:10:01,621 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-24 01:10:05,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:10:05,640 INFO L93 Difference]: Finished difference Result 1880 states and 2169 transitions. [2020-10-24 01:10:05,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-24 01:10:05,641 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 179 [2020-10-24 01:10:05,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:10:05,657 INFO L225 Difference]: With dead ends: 1880 [2020-10-24 01:10:05,657 INFO L226 Difference]: Without dead ends: 1627 [2020-10-24 01:10:05,659 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2020-10-24 01:10:05,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2020-10-24 01:10:05,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1395. [2020-10-24 01:10:05,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1395 states. [2020-10-24 01:10:05,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 1636 transitions. [2020-10-24 01:10:05,946 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 1636 transitions. Word has length 179 [2020-10-24 01:10:05,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:10:05,947 INFO L481 AbstractCegarLoop]: Abstraction has 1395 states and 1636 transitions. [2020-10-24 01:10:05,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-24 01:10:05,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 1636 transitions. [2020-10-24 01:10:05,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-24 01:10:05,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:10:05,954 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:10:05,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 01:10:05,955 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:10:05,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:10:05,955 INFO L82 PathProgramCache]: Analyzing trace with hash 768704178, now seen corresponding path program 1 times [2020-10-24 01:10:05,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:10:05,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483224978] [2020-10-24 01:10:05,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:10:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:06,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:10:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:06,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:10:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:06,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:10:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:06,302 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 31 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-24 01:10:06,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483224978] [2020-10-24 01:10:06,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:10:06,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:10:06,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116463167] [2020-10-24 01:10:06,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:10:06,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:10:06,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:10:06,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:10:06,309 INFO L87 Difference]: Start difference. First operand 1395 states and 1636 transitions. Second operand 7 states. [2020-10-24 01:10:06,535 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:10:09,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:10:09,395 INFO L93 Difference]: Finished difference Result 3713 states and 4523 transitions. [2020-10-24 01:10:09,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 01:10:09,395 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2020-10-24 01:10:09,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:10:09,413 INFO L225 Difference]: With dead ends: 3713 [2020-10-24 01:10:09,413 INFO L226 Difference]: Without dead ends: 2350 [2020-10-24 01:10:09,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-24 01:10:09,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2350 states. [2020-10-24 01:10:09,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2350 to 2283. [2020-10-24 01:10:09,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2283 states. [2020-10-24 01:10:09,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2283 states to 2283 states and 2718 transitions. [2020-10-24 01:10:09,929 INFO L78 Accepts]: Start accepts. Automaton has 2283 states and 2718 transitions. Word has length 183 [2020-10-24 01:10:09,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:10:09,930 INFO L481 AbstractCegarLoop]: Abstraction has 2283 states and 2718 transitions. [2020-10-24 01:10:09,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:10:09,930 INFO L276 IsEmpty]: Start isEmpty. Operand 2283 states and 2718 transitions. [2020-10-24 01:10:09,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-24 01:10:09,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:10:09,940 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:10:09,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 01:10:09,941 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:10:09,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:10:09,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1271303954, now seen corresponding path program 1 times [2020-10-24 01:10:09,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:10:09,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1818173491] [2020-10-24 01:10:09,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:10:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:10,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:10:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:10,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:10:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:10,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:10:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:10,549 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-24 01:10:10,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1818173491] [2020-10-24 01:10:10,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:10:10,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-24 01:10:10,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071926462] [2020-10-24 01:10:10,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-24 01:10:10,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:10:10,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-24 01:10:10,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-24 01:10:10,552 INFO L87 Difference]: Start difference. First operand 2283 states and 2718 transitions. Second operand 11 states. [2020-10-24 01:10:10,895 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-24 01:10:11,413 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-24 01:10:11,792 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-24 01:10:16,131 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-24 01:10:17,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:10:17,180 INFO L93 Difference]: Finished difference Result 5893 states and 7182 transitions. [2020-10-24 01:10:17,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-24 01:10:17,182 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 194 [2020-10-24 01:10:17,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:10:17,211 INFO L225 Difference]: With dead ends: 5893 [2020-10-24 01:10:17,211 INFO L226 Difference]: Without dead ends: 3661 [2020-10-24 01:10:17,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=118, Invalid=188, Unknown=0, NotChecked=0, Total=306 [2020-10-24 01:10:17,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3661 states. [2020-10-24 01:10:17,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3661 to 3041. [2020-10-24 01:10:17,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3041 states. [2020-10-24 01:10:17,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3041 states to 3041 states and 3578 transitions. [2020-10-24 01:10:17,886 INFO L78 Accepts]: Start accepts. Automaton has 3041 states and 3578 transitions. Word has length 194 [2020-10-24 01:10:17,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:10:17,886 INFO L481 AbstractCegarLoop]: Abstraction has 3041 states and 3578 transitions. [2020-10-24 01:10:17,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-24 01:10:17,886 INFO L276 IsEmpty]: Start isEmpty. Operand 3041 states and 3578 transitions. [2020-10-24 01:10:17,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-24 01:10:17,897 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:10:17,898 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:10:17,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-24 01:10:17,898 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:10:17,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:10:17,899 INFO L82 PathProgramCache]: Analyzing trace with hash 363716375, now seen corresponding path program 1 times [2020-10-24 01:10:17,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:10:17,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168812900] [2020-10-24 01:10:17,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:10:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:18,158 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-24 01:10:18,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:10:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:18,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:10:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:18,584 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:10:18,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1168812900] [2020-10-24 01:10:18,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:10:18,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-24 01:10:18,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950136876] [2020-10-24 01:10:18,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-24 01:10:18,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:10:18,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-24 01:10:18,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-24 01:10:18,593 INFO L87 Difference]: Start difference. First operand 3041 states and 3578 transitions. Second operand 11 states. [2020-10-24 01:10:19,856 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-24 01:10:22,957 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-24 01:10:25,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:10:25,057 INFO L93 Difference]: Finished difference Result 6352 states and 7457 transitions. [2020-10-24 01:10:25,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-24 01:10:25,057 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 203 [2020-10-24 01:10:25,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:10:25,081 INFO L225 Difference]: With dead ends: 6352 [2020-10-24 01:10:25,081 INFO L226 Difference]: Without dead ends: 3226 [2020-10-24 01:10:25,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2020-10-24 01:10:25,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3226 states. [2020-10-24 01:10:25,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3226 to 3029. [2020-10-24 01:10:25,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3029 states. [2020-10-24 01:10:25,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3029 states to 3029 states and 3529 transitions. [2020-10-24 01:10:25,835 INFO L78 Accepts]: Start accepts. Automaton has 3029 states and 3529 transitions. Word has length 203 [2020-10-24 01:10:25,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:10:25,836 INFO L481 AbstractCegarLoop]: Abstraction has 3029 states and 3529 transitions. [2020-10-24 01:10:25,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-24 01:10:25,836 INFO L276 IsEmpty]: Start isEmpty. Operand 3029 states and 3529 transitions. [2020-10-24 01:10:25,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-24 01:10:25,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:10:25,846 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:10:25,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-24 01:10:25,847 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:10:25,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:10:25,847 INFO L82 PathProgramCache]: Analyzing trace with hash -687766128, now seen corresponding path program 1 times [2020-10-24 01:10:25,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:10:25,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [290120583] [2020-10-24 01:10:25,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:10:25,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:25,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:10:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:26,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:10:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:26,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:10:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:26,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-24 01:10:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:26,192 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 64 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-24 01:10:26,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [290120583] [2020-10-24 01:10:26,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:10:26,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-24 01:10:26,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652926779] [2020-10-24 01:10:26,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 01:10:26,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:10:26,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 01:10:26,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-24 01:10:26,194 INFO L87 Difference]: Start difference. First operand 3029 states and 3529 transitions. Second operand 9 states. [2020-10-24 01:10:28,718 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:10:32,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:10:32,551 INFO L93 Difference]: Finished difference Result 7196 states and 8381 transitions. [2020-10-24 01:10:32,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-24 01:10:32,552 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 212 [2020-10-24 01:10:32,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:10:32,582 INFO L225 Difference]: With dead ends: 7196 [2020-10-24 01:10:32,582 INFO L226 Difference]: Without dead ends: 4340 [2020-10-24 01:10:32,592 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2020-10-24 01:10:32,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4340 states. [2020-10-24 01:10:33,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4340 to 3912. [2020-10-24 01:10:33,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3912 states. [2020-10-24 01:10:33,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3912 states to 3912 states and 4513 transitions. [2020-10-24 01:10:33,363 INFO L78 Accepts]: Start accepts. Automaton has 3912 states and 4513 transitions. Word has length 212 [2020-10-24 01:10:33,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:10:33,364 INFO L481 AbstractCegarLoop]: Abstraction has 3912 states and 4513 transitions. [2020-10-24 01:10:33,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 01:10:33,364 INFO L276 IsEmpty]: Start isEmpty. Operand 3912 states and 4513 transitions. [2020-10-24 01:10:33,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-24 01:10:33,375 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:10:33,375 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2020-10-24 01:10:33,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-24 01:10:33,376 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:10:33,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:10:33,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1806203819, now seen corresponding path program 1 times [2020-10-24 01:10:33,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:10:33,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869740570] [2020-10-24 01:10:33,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:10:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:33,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:10:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:33,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:10:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:33,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:10:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:33,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-24 01:10:33,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:33,757 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-24 01:10:33,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869740570] [2020-10-24 01:10:33,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:10:33,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:10:33,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136052357] [2020-10-24 01:10:33,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:10:33,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:10:33,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:10:33,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:10:33,760 INFO L87 Difference]: Start difference. First operand 3912 states and 4513 transitions. Second operand 7 states. [2020-10-24 01:10:34,233 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:10:37,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:10:37,087 INFO L93 Difference]: Finished difference Result 8715 states and 10216 transitions. [2020-10-24 01:10:37,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 01:10:37,093 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 217 [2020-10-24 01:10:37,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:10:37,122 INFO L225 Difference]: With dead ends: 8715 [2020-10-24 01:10:37,122 INFO L226 Difference]: Without dead ends: 4976 [2020-10-24 01:10:37,135 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-24 01:10:37,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4976 states. [2020-10-24 01:10:38,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4976 to 4883. [2020-10-24 01:10:38,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4883 states. [2020-10-24 01:10:38,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4883 states to 4883 states and 5701 transitions. [2020-10-24 01:10:38,200 INFO L78 Accepts]: Start accepts. Automaton has 4883 states and 5701 transitions. Word has length 217 [2020-10-24 01:10:38,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:10:38,200 INFO L481 AbstractCegarLoop]: Abstraction has 4883 states and 5701 transitions. [2020-10-24 01:10:38,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:10:38,200 INFO L276 IsEmpty]: Start isEmpty. Operand 4883 states and 5701 transitions. [2020-10-24 01:10:38,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-24 01:10:38,214 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:10:38,214 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2020-10-24 01:10:38,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-24 01:10:38,214 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:10:38,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:10:38,215 INFO L82 PathProgramCache]: Analyzing trace with hash -479619811, now seen corresponding path program 1 times [2020-10-24 01:10:38,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:10:38,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203680261] [2020-10-24 01:10:38,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:10:38,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:38,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:10:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:38,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:10:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:38,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:10:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:38,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-24 01:10:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:38,522 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 74 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-24 01:10:38,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [203680261] [2020-10-24 01:10:38,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:10:38,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-24 01:10:38,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678818724] [2020-10-24 01:10:38,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 01:10:38,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:10:38,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 01:10:38,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-24 01:10:38,524 INFO L87 Difference]: Start difference. First operand 4883 states and 5701 transitions. Second operand 10 states. [2020-10-24 01:10:38,724 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-24 01:10:38,984 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-10-24 01:10:39,719 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:10:40,177 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-24 01:10:40,788 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-24 01:10:41,190 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:10:41,424 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2020-10-24 01:10:46,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:10:46,154 INFO L93 Difference]: Finished difference Result 11667 states and 13751 transitions. [2020-10-24 01:10:46,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-24 01:10:46,154 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 219 [2020-10-24 01:10:46,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:10:46,202 INFO L225 Difference]: With dead ends: 11667 [2020-10-24 01:10:46,202 INFO L226 Difference]: Without dead ends: 6957 [2020-10-24 01:10:46,218 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=312, Invalid=1170, Unknown=0, NotChecked=0, Total=1482 [2020-10-24 01:10:46,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6957 states. [2020-10-24 01:10:47,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6957 to 6258. [2020-10-24 01:10:47,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6258 states. [2020-10-24 01:10:47,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6258 states to 6258 states and 7321 transitions. [2020-10-24 01:10:47,281 INFO L78 Accepts]: Start accepts. Automaton has 6258 states and 7321 transitions. Word has length 219 [2020-10-24 01:10:47,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:10:47,282 INFO L481 AbstractCegarLoop]: Abstraction has 6258 states and 7321 transitions. [2020-10-24 01:10:47,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 01:10:47,282 INFO L276 IsEmpty]: Start isEmpty. Operand 6258 states and 7321 transitions. [2020-10-24 01:10:47,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-10-24 01:10:47,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:10:47,299 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:10:47,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-24 01:10:47,299 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:10:47,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:10:47,299 INFO L82 PathProgramCache]: Analyzing trace with hash -196509747, now seen corresponding path program 1 times [2020-10-24 01:10:47,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:10:47,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [920129039] [2020-10-24 01:10:47,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:10:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:47,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:10:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:47,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:10:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:47,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:10:47,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:47,618 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 76 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-24 01:10:47,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [920129039] [2020-10-24 01:10:47,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:10:47,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-24 01:10:47,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293621771] [2020-10-24 01:10:47,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:10:47,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:10:47,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:10:47,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:10:47,621 INFO L87 Difference]: Start difference. First operand 6258 states and 7321 transitions. Second operand 8 states. [2020-10-24 01:10:48,364 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-24 01:10:49,627 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 01:10:52,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:10:52,476 INFO L93 Difference]: Finished difference Result 12740 states and 14953 transitions. [2020-10-24 01:10:52,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-24 01:10:52,477 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 229 [2020-10-24 01:10:52,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:10:52,507 INFO L225 Difference]: With dead ends: 12740 [2020-10-24 01:10:52,507 INFO L226 Difference]: Without dead ends: 6655 [2020-10-24 01:10:52,525 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-24 01:10:52,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6655 states. [2020-10-24 01:10:53,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6655 to 6268. [2020-10-24 01:10:53,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6268 states. [2020-10-24 01:10:53,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6268 states to 6268 states and 7307 transitions. [2020-10-24 01:10:53,643 INFO L78 Accepts]: Start accepts. Automaton has 6268 states and 7307 transitions. Word has length 229 [2020-10-24 01:10:53,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:10:53,643 INFO L481 AbstractCegarLoop]: Abstraction has 6268 states and 7307 transitions. [2020-10-24 01:10:53,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:10:53,643 INFO L276 IsEmpty]: Start isEmpty. Operand 6268 states and 7307 transitions. [2020-10-24 01:10:53,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-24 01:10:53,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:10:53,663 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:10:53,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-24 01:10:53,663 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:10:53,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:10:53,663 INFO L82 PathProgramCache]: Analyzing trace with hash -27568149, now seen corresponding path program 1 times [2020-10-24 01:10:53,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:10:53,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438707736] [2020-10-24 01:10:53,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:10:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:53,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:10:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:53,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:10:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:53,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:10:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:53,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-24 01:10:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:54,352 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 82 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-24 01:10:54,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [438707736] [2020-10-24 01:10:54,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:10:54,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-24 01:10:54,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714561867] [2020-10-24 01:10:54,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-24 01:10:54,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:10:54,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-24 01:10:54,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-24 01:10:54,355 INFO L87 Difference]: Start difference. First operand 6268 states and 7307 transitions. Second operand 11 states. [2020-10-24 01:10:55,458 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-24 01:10:55,670 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:10:56,219 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:10:57,530 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-24 01:11:00,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:11:00,073 INFO L93 Difference]: Finished difference Result 13476 states and 15876 transitions. [2020-10-24 01:11:00,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-24 01:11:00,075 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 246 [2020-10-24 01:11:00,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:11:00,120 INFO L225 Difference]: With dead ends: 13476 [2020-10-24 01:11:00,120 INFO L226 Difference]: Without dead ends: 6778 [2020-10-24 01:11:00,147 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=88, Invalid=152, Unknown=0, NotChecked=0, Total=240 [2020-10-24 01:11:00,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6778 states. [2020-10-24 01:11:01,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6778 to 6185. [2020-10-24 01:11:01,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6185 states. [2020-10-24 01:11:01,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6185 states to 6185 states and 7019 transitions. [2020-10-24 01:11:01,702 INFO L78 Accepts]: Start accepts. Automaton has 6185 states and 7019 transitions. Word has length 246 [2020-10-24 01:11:01,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:11:01,702 INFO L481 AbstractCegarLoop]: Abstraction has 6185 states and 7019 transitions. [2020-10-24 01:11:01,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-24 01:11:01,702 INFO L276 IsEmpty]: Start isEmpty. Operand 6185 states and 7019 transitions. [2020-10-24 01:11:01,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-24 01:11:01,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:11:01,710 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-24 01:11:01,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-24 01:11:01,710 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:11:01,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:11:01,711 INFO L82 PathProgramCache]: Analyzing trace with hash 913595762, now seen corresponding path program 1 times [2020-10-24 01:11:01,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:11:01,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163433320] [2020-10-24 01:11:01,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:11:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:01,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:11:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:02,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:11:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:02,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-24 01:11:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:02,461 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-24 01:11:02,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1163433320] [2020-10-24 01:11:02,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:11:02,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-24 01:11:02,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530947080] [2020-10-24 01:11:02,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-24 01:11:02,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:11:02,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-24 01:11:02,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-24 01:11:02,466 INFO L87 Difference]: Start difference. First operand 6185 states and 7019 transitions. Second operand 11 states. [2020-10-24 01:11:03,573 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-24 01:11:04,396 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-24 01:11:05,047 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-24 01:11:05,510 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-24 01:11:09,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:11:09,618 INFO L93 Difference]: Finished difference Result 14193 states and 16058 transitions. [2020-10-24 01:11:09,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-24 01:11:09,623 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 249 [2020-10-24 01:11:09,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:11:09,653 INFO L225 Difference]: With dead ends: 14193 [2020-10-24 01:11:09,653 INFO L226 Difference]: Without dead ends: 7498 [2020-10-24 01:11:09,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=118, Invalid=188, Unknown=0, NotChecked=0, Total=306 [2020-10-24 01:11:09,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7498 states. [2020-10-24 01:11:10,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7498 to 6347. [2020-10-24 01:11:10,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6347 states. [2020-10-24 01:11:10,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6347 states to 6347 states and 7105 transitions. [2020-10-24 01:11:10,804 INFO L78 Accepts]: Start accepts. Automaton has 6347 states and 7105 transitions. Word has length 249 [2020-10-24 01:11:10,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:11:10,805 INFO L481 AbstractCegarLoop]: Abstraction has 6347 states and 7105 transitions. [2020-10-24 01:11:10,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-24 01:11:10,805 INFO L276 IsEmpty]: Start isEmpty. Operand 6347 states and 7105 transitions. [2020-10-24 01:11:10,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-10-24 01:11:10,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:11:10,813 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-24 01:11:10,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-24 01:11:10,813 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:11:10,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:11:10,814 INFO L82 PathProgramCache]: Analyzing trace with hash 234186119, now seen corresponding path program 1 times [2020-10-24 01:11:10,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:11:10,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [644452638] [2020-10-24 01:11:10,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:11:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:10,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:11:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:10,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:11:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:11,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-24 01:11:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:11,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-24 01:11:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:11,092 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-10-24 01:11:11,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [644452638] [2020-10-24 01:11:11,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:11:11,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:11:11,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516317207] [2020-10-24 01:11:11,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:11:11,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:11:11,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:11:11,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:11:11,095 INFO L87 Difference]: Start difference. First operand 6347 states and 7105 transitions. Second operand 7 states. [2020-10-24 01:11:14,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:11:14,326 INFO L93 Difference]: Finished difference Result 12720 states and 14213 transitions. [2020-10-24 01:11:14,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 01:11:14,327 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 265 [2020-10-24 01:11:14,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:11:14,353 INFO L225 Difference]: With dead ends: 12720 [2020-10-24 01:11:14,353 INFO L226 Difference]: Without dead ends: 6292 [2020-10-24 01:11:14,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-24 01:11:14,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6292 states. [2020-10-24 01:11:15,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6292 to 6248. [2020-10-24 01:11:15,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6248 states. [2020-10-24 01:11:15,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6248 states to 6248 states and 6681 transitions. [2020-10-24 01:11:15,687 INFO L78 Accepts]: Start accepts. Automaton has 6248 states and 6681 transitions. Word has length 265 [2020-10-24 01:11:15,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:11:15,687 INFO L481 AbstractCegarLoop]: Abstraction has 6248 states and 6681 transitions. [2020-10-24 01:11:15,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:11:15,688 INFO L276 IsEmpty]: Start isEmpty. Operand 6248 states and 6681 transitions. [2020-10-24 01:11:15,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-10-24 01:11:15,695 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:11:15,695 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-24 01:11:15,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-24 01:11:15,696 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:11:15,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:11:15,696 INFO L82 PathProgramCache]: Analyzing trace with hash 2060463762, now seen corresponding path program 1 times [2020-10-24 01:11:15,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:11:15,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1916393799] [2020-10-24 01:11:15,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:11:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:15,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:11:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:15,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:11:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:15,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-24 01:11:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:15,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-24 01:11:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:16,064 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 128 proven. 16 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-10-24 01:11:16,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1916393799] [2020-10-24 01:11:16,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:11:16,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-24 01:11:16,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140988640] [2020-10-24 01:11:16,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 01:11:16,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:11:16,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 01:11:16,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-24 01:11:16,066 INFO L87 Difference]: Start difference. First operand 6248 states and 6681 transitions. Second operand 10 states. [2020-10-24 01:11:16,389 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-24 01:11:17,074 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-24 01:11:17,582 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:11:18,115 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-10-24 01:11:18,350 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-24 01:11:19,929 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-24 01:11:20,935 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 01:11:22,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:11:22,641 INFO L93 Difference]: Finished difference Result 12685 states and 13587 transitions. [2020-10-24 01:11:22,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-24 01:11:22,642 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 266 [2020-10-24 01:11:22,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:11:22,663 INFO L225 Difference]: With dead ends: 12685 [2020-10-24 01:11:22,663 INFO L226 Difference]: Without dead ends: 6610 [2020-10-24 01:11:22,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=279, Invalid=1053, Unknown=0, NotChecked=0, Total=1332 [2020-10-24 01:11:22,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6610 states. [2020-10-24 01:11:23,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6610 to 6103. [2020-10-24 01:11:23,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6103 states. [2020-10-24 01:11:23,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6103 states to 6103 states and 6490 transitions. [2020-10-24 01:11:23,822 INFO L78 Accepts]: Start accepts. Automaton has 6103 states and 6490 transitions. Word has length 266 [2020-10-24 01:11:23,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:11:23,822 INFO L481 AbstractCegarLoop]: Abstraction has 6103 states and 6490 transitions. [2020-10-24 01:11:23,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 01:11:23,822 INFO L276 IsEmpty]: Start isEmpty. Operand 6103 states and 6490 transitions. [2020-10-24 01:11:23,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-10-24 01:11:23,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:11:23,830 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-24 01:11:23,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-24 01:11:23,831 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:11:23,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:11:23,831 INFO L82 PathProgramCache]: Analyzing trace with hash 888262528, now seen corresponding path program 1 times [2020-10-24 01:11:23,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:11:23,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1587395617] [2020-10-24 01:11:23,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:11:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:24,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:11:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:24,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:11:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:24,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-24 01:11:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:24,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-24 01:11:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:24,194 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 173 proven. 4 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-10-24 01:11:24,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1587395617] [2020-10-24 01:11:24,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:11:24,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-24 01:11:24,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802544288] [2020-10-24 01:11:24,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:11:24,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:11:24,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:11:24,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:11:24,196 INFO L87 Difference]: Start difference. First operand 6103 states and 6490 transitions. Second operand 8 states. [2020-10-24 01:11:24,506 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-24 01:11:25,582 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 01:11:26,598 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-24 01:11:28,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:11:28,039 INFO L93 Difference]: Finished difference Result 12134 states and 12904 transitions. [2020-10-24 01:11:28,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-24 01:11:28,040 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 306 [2020-10-24 01:11:28,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:11:28,067 INFO L225 Difference]: With dead ends: 12134 [2020-10-24 01:11:28,067 INFO L226 Difference]: Without dead ends: 6204 [2020-10-24 01:11:28,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-24 01:11:28,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6204 states. [2020-10-24 01:11:29,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6204 to 5837. [2020-10-24 01:11:29,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5837 states. [2020-10-24 01:11:29,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5837 states to 5837 states and 6182 transitions. [2020-10-24 01:11:29,189 INFO L78 Accepts]: Start accepts. Automaton has 5837 states and 6182 transitions. Word has length 306 [2020-10-24 01:11:29,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:11:29,190 INFO L481 AbstractCegarLoop]: Abstraction has 5837 states and 6182 transitions. [2020-10-24 01:11:29,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:11:29,190 INFO L276 IsEmpty]: Start isEmpty. Operand 5837 states and 6182 transitions. [2020-10-24 01:11:29,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-10-24 01:11:29,195 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:11:29,195 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-24 01:11:29,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-24 01:11:29,196 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:11:29,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:11:29,196 INFO L82 PathProgramCache]: Analyzing trace with hash -863851653, now seen corresponding path program 1 times [2020-10-24 01:11:29,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:11:29,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [892515577] [2020-10-24 01:11:29,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:11:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:29,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:11:29,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:29,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:11:29,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:29,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-24 01:11:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:29,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-24 01:11:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:29,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-24 01:11:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:29,570 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 150 proven. 32 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-10-24 01:11:29,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [892515577] [2020-10-24 01:11:29,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:11:29,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:11:29,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262017369] [2020-10-24 01:11:29,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:11:29,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:11:29,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:11:29,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:11:29,572 INFO L87 Difference]: Start difference. First operand 5837 states and 6182 transitions. Second operand 7 states. [2020-10-24 01:11:32,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:11:32,536 INFO L93 Difference]: Finished difference Result 11359 states and 12041 transitions. [2020-10-24 01:11:32,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-24 01:11:32,536 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 327 [2020-10-24 01:11:32,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:11:32,558 INFO L225 Difference]: With dead ends: 11359 [2020-10-24 01:11:32,559 INFO L226 Difference]: Without dead ends: 5695 [2020-10-24 01:11:32,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-24 01:11:32,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5695 states. [2020-10-24 01:11:33,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5695 to 5660. [2020-10-24 01:11:33,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5660 states. [2020-10-24 01:11:33,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5660 states to 5660 states and 5970 transitions. [2020-10-24 01:11:33,675 INFO L78 Accepts]: Start accepts. Automaton has 5660 states and 5970 transitions. Word has length 327 [2020-10-24 01:11:33,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:11:33,676 INFO L481 AbstractCegarLoop]: Abstraction has 5660 states and 5970 transitions. [2020-10-24 01:11:33,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:11:33,676 INFO L276 IsEmpty]: Start isEmpty. Operand 5660 states and 5970 transitions. [2020-10-24 01:11:33,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2020-10-24 01:11:33,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:11:33,687 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-24 01:11:33,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-24 01:11:33,687 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:11:33,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:11:33,688 INFO L82 PathProgramCache]: Analyzing trace with hash -9437547, now seen corresponding path program 1 times [2020-10-24 01:11:33,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:11:33,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1795370418] [2020-10-24 01:11:33,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:11:33,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:33,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:11:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:33,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:11:33,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:33,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-24 01:11:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:33,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-24 01:11:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:33,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-24 01:11:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:33,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-24 01:11:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:33,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-10-24 01:11:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:34,069 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 393 proven. 4 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2020-10-24 01:11:34,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1795370418] [2020-10-24 01:11:34,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:11:34,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:11:34,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484127210] [2020-10-24 01:11:34,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:11:34,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:11:34,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:11:34,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:11:34,071 INFO L87 Difference]: Start difference. First operand 5660 states and 5970 transitions. Second operand 7 states. [2020-10-24 01:11:37,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:11:37,887 INFO L93 Difference]: Finished difference Result 11141 states and 11797 transitions. [2020-10-24 01:11:37,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 01:11:37,887 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 401 [2020-10-24 01:11:37,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:11:37,892 INFO L225 Difference]: With dead ends: 11141 [2020-10-24 01:11:37,892 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 01:11:37,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-24 01:11:37,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 01:11:37,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 01:11:37,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 01:11:37,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 01:11:37,905 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 401 [2020-10-24 01:11:37,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:11:37,906 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 01:11:37,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:11:37,906 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 01:11:37,906 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 01:11:37,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-24 01:11:37,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 01:11:38,534 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:11:53,040 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 107 [2020-10-24 01:11:53,194 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 105 [2020-10-24 01:14:13,906 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 144 [2020-10-24 01:15:09,821 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 107 [2020-10-24 01:15:09,975 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 105 [2020-10-24 01:15:10,082 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 106 [2020-10-24 01:15:11,936 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2020-10-24 01:15:15,049 WARN L193 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2020-10-24 01:15:18,016 WARN L193 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:15:20,920 WARN L193 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2020-10-24 01:15:21,760 WARN L193 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2020-10-24 01:15:22,927 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2020-10-24 01:15:23,750 WARN L193 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2020-10-24 01:15:26,650 WARN L193 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2020-10-24 01:15:27,753 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2020-10-24 01:15:30,666 WARN L193 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2020-10-24 01:15:31,819 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 178 DAG size of output: 71 [2020-10-24 01:15:32,745 WARN L193 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 74 [2020-10-24 01:15:33,542 WARN L193 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 68 [2020-10-24 01:15:34,259 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 65 [2020-10-24 01:15:34,976 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 67 [2020-10-24 01:15:36,680 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 185 DAG size of output: 77 [2020-10-24 01:15:39,646 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:15:40,898 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 183 DAG size of output: 73 [2020-10-24 01:15:41,705 WARN L193 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 70 [2020-10-24 01:15:44,664 WARN L193 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:15:47,632 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:15:48,629 WARN L193 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 67 [2020-10-24 01:15:49,420 WARN L193 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 68 [2020-10-24 01:15:50,226 WARN L193 SmtUtils]: Spent 798.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 67 [2020-10-24 01:15:51,369 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 173 DAG size of output: 68 [2020-10-24 01:15:54,350 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:15:55,077 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 66 [2020-10-24 01:15:55,943 WARN L193 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2020-10-24 01:15:56,913 WARN L193 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 68 [2020-10-24 01:15:57,705 WARN L193 SmtUtils]: Spent 783.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 68 [2020-10-24 01:15:58,711 WARN L193 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 69 [2020-10-24 01:15:59,676 WARN L193 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2020-10-24 01:16:02,629 WARN L193 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:16:03,591 WARN L193 SmtUtils]: Spent 953.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 74 [2020-10-24 01:16:06,568 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:16:07,358 WARN L193 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 68 [2020-10-24 01:16:08,180 WARN L193 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 68 [2020-10-24 01:16:08,983 WARN L193 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 67 [2020-10-24 01:16:11,982 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:16:12,942 WARN L193 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 66 [2020-10-24 01:16:13,958 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 124 DAG size of output: 69 [2020-10-24 01:16:14,706 WARN L193 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 68 [2020-10-24 01:16:15,822 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 133 DAG size of output: 67 [2020-10-24 01:16:17,141 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 141 DAG size of output: 75 [2020-10-24 01:16:18,200 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 133 DAG size of output: 67 [2020-10-24 01:16:19,311 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 128 DAG size of output: 68 [2020-10-24 01:16:22,268 WARN L193 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:16:23,228 WARN L193 SmtUtils]: Spent 952.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 64 [2020-10-24 01:16:24,363 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 180 DAG size of output: 71 [2020-10-24 01:16:25,741 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 134 DAG size of output: 72 [2020-10-24 01:16:26,717 WARN L193 SmtUtils]: Spent 967.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 68 [2020-10-24 01:16:27,590 WARN L193 SmtUtils]: Spent 864.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 65 [2020-10-24 01:16:28,636 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 172 DAG size of output: 68 [2020-10-24 01:16:29,365 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 64 [2020-10-24 01:16:30,518 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 178 DAG size of output: 71 [2020-10-24 01:16:31,315 WARN L193 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 67 [2020-10-24 01:16:32,165 WARN L193 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 69 [2020-10-24 01:16:35,158 WARN L193 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:16:35,958 WARN L193 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 66 [2020-10-24 01:16:36,444 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 57 [2020-10-24 01:16:37,572 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2020-10-24 01:16:38,289 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 66 [2020-10-24 01:16:41,289 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:16:42,011 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 66 [2020-10-24 01:16:42,851 WARN L193 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2020-10-24 01:16:45,797 WARN L193 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2020-10-24 01:16:48,796 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:16:51,739 WARN L193 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2020-10-24 01:16:52,584 WARN L193 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2020-10-24 01:16:53,257 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 55 [2020-10-24 01:16:54,102 WARN L193 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2020-10-24 01:16:54,777 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 55 [2020-10-24 01:16:57,725 WARN L193 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2020-10-24 01:17:00,761 WARN L193 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:17:01,489 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 66 [2020-10-24 01:17:02,818 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 137 DAG size of output: 71 [2020-10-24 01:17:05,824 WARN L193 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:17:06,714 WARN L193 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 66 [2020-10-24 01:17:07,886 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 178 DAG size of output: 70 [2020-10-24 01:17:08,636 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 67 [2020-10-24 01:17:09,415 WARN L193 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 70 [2020-10-24 01:17:11,080 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 184 DAG size of output: 81 [2020-10-24 01:17:12,149 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 172 DAG size of output: 68 [2020-10-24 01:17:13,639 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 208 DAG size of output: 78 [2020-10-24 01:17:14,392 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 68 [2020-10-24 01:17:15,795 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 183 DAG size of output: 72 [2020-10-24 01:17:16,887 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 123 DAG size of output: 65 [2020-10-24 01:17:19,900 WARN L193 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:17:20,639 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 67 [2020-10-24 01:17:21,465 WARN L193 SmtUtils]: Spent 818.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 69 [2020-10-24 01:17:22,194 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 66 [2020-10-24 01:17:22,928 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 67 [2020-10-24 01:17:24,056 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 136 DAG size of output: 69 [2020-10-24 01:17:25,182 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2020-10-24 01:17:25,912 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 66 [2020-10-24 01:17:28,929 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:17:31,944 WARN L193 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:17:32,801 WARN L193 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2020-10-24 01:17:35,770 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2020-10-24 01:17:38,789 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:17:41,757 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2020-10-24 01:17:42,612 WARN L193 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2020-10-24 01:17:43,485 WARN L193 SmtUtils]: Spent 864.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 68 [2020-10-24 01:17:44,752 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 137 DAG size of output: 69 [2020-10-24 01:17:47,795 WARN L193 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:17:48,681 WARN L193 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 68 [2020-10-24 01:17:49,417 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 66 [2020-10-24 01:17:50,212 WARN L193 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 69 [2020-10-24 01:17:51,740 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 187 DAG size of output: 73 [2020-10-24 01:17:52,819 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 175 DAG size of output: 70 [2020-10-24 01:17:53,549 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 64 [2020-10-24 01:17:54,812 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 150 DAG size of output: 72 [2020-10-24 01:17:55,605 WARN L193 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 72 [2020-10-24 01:17:56,535 WARN L193 SmtUtils]: Spent 921.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 68 [2020-10-24 01:17:57,514 WARN L193 SmtUtils]: Spent 970.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 66 [2020-10-24 01:18:00,547 WARN L193 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:18:01,728 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 178 DAG size of output: 71 [2020-10-24 01:18:04,769 WARN L193 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:18:06,320 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 135 DAG size of output: 76 [2020-10-24 01:18:07,177 WARN L193 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2020-10-24 01:18:08,314 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2020-10-24 01:18:11,315 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2020-10-24 01:18:12,432 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 183 DAG size of output: 72 [2020-10-24 01:18:13,588 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 132 DAG size of output: 65 [2020-10-24 01:18:16,624 WARN L193 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:18:17,850 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 134 DAG size of output: 71 [2020-10-24 01:18:18,603 WARN L193 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 66 [2020-10-24 01:18:19,369 WARN L193 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 67 [2020-10-24 01:18:20,349 WARN L193 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 64 [2020-10-24 01:18:21,372 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 121 DAG size of output: 65 [2020-10-24 01:18:22,257 WARN L193 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 72 [2020-10-24 01:18:25,302 WARN L193 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:18:26,370 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 172 DAG size of output: 73 [2020-10-24 01:18:27,217 WARN L193 SmtUtils]: Spent 839.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 67 [2020-10-24 01:18:28,811 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 138 DAG size of output: 79 [2020-10-24 01:18:29,840 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 121 DAG size of output: 65 [2020-10-24 01:18:30,697 WARN L193 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 67 [2020-10-24 01:18:31,544 WARN L193 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 69 [2020-10-24 01:18:32,577 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 121 DAG size of output: 65 [2020-10-24 01:18:33,634 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 125 DAG size of output: 64 [2020-10-24 01:18:34,799 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 142 DAG size of output: 69 [2020-10-24 01:18:35,942 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 135 DAG size of output: 68 [2020-10-24 01:18:37,339 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 183 DAG size of output: 74 [2020-10-24 01:18:38,344 WARN L193 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 66 [2020-10-24 01:18:39,268 WARN L193 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 69 [2020-10-24 01:18:40,124 WARN L193 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 68 [2020-10-24 01:18:41,476 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 153 DAG size of output: 72 [2020-10-24 01:18:42,316 WARN L193 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 69 [2020-10-24 01:18:43,458 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2020-10-24 01:18:43,962 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 57 [2020-10-24 01:18:47,000 WARN L193 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2020-10-24 01:18:50,003 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2020-10-24 01:18:50,508 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 57 [2020-10-24 01:18:51,014 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 57 [2020-10-24 01:18:51,884 WARN L193 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2020-10-24 01:18:52,746 WARN L193 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 68 [2020-10-24 01:18:55,884 WARN L193 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:18:56,928 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 123 DAG size of output: 67 [2020-10-24 01:18:57,974 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 124 DAG size of output: 67 [2020-10-24 01:18:59,081 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 124 DAG size of output: 64 [2020-10-24 01:19:02,147 WARN L193 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:19:05,209 WARN L193 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:19:06,340 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 173 DAG size of output: 69 [2020-10-24 01:19:07,142 WARN L193 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 72 [2020-10-24 01:19:10,223 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:19:11,092 WARN L193 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2020-10-24 01:19:11,978 WARN L193 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2020-10-24 01:19:12,853 WARN L193 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2020-10-24 01:19:15,892 WARN L193 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2020-10-24 01:19:17,045 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2020-10-24 01:19:17,920 WARN L193 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2020-10-24 01:19:20,929 WARN L193 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2020-10-24 01:19:21,803 WARN L193 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2020-10-24 01:19:24,829 WARN L193 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2020-10-24 01:19:25,708 WARN L193 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2020-10-24 01:19:26,746 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 120 DAG size of output: 65 [2020-10-24 01:19:27,801 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 123 DAG size of output: 67 [2020-10-24 01:19:28,573 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 64 [2020-10-24 01:19:31,657 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:19:32,779 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 173 DAG size of output: 69 [2020-10-24 01:19:35,854 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:19:36,861 WARN L193 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 66 [2020-10-24 01:19:37,995 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 128 DAG size of output: 68 [2020-10-24 01:19:38,870 WARN L193 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2020-10-24 01:19:41,962 WARN L193 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:19:45,041 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:19:45,823 WARN L193 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 69 [2020-10-24 01:19:46,666 WARN L193 SmtUtils]: Spent 835.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 65 [2020-10-24 01:19:49,708 WARN L193 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2020-10-24 01:19:50,859 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2020-10-24 01:19:51,430 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 57 [2020-10-24 01:19:52,642 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 126 DAG size of output: 66 [2020-10-24 01:19:53,483 WARN L193 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 68 [2020-10-24 01:19:54,622 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 127 DAG size of output: 70 [2020-10-24 01:19:55,574 WARN L193 SmtUtils]: Spent 944.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 70 [2020-10-24 01:19:58,681 WARN L193 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:20:01,773 WARN L193 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:20:02,711 WARN L193 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 72 [2020-10-24 01:20:03,634 WARN L193 SmtUtils]: Spent 915.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 71 [2020-10-24 01:20:04,427 WARN L193 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 69 [2020-10-24 01:20:05,491 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 121 DAG size of output: 65 [2020-10-24 01:20:06,542 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 120 DAG size of output: 65 [2020-10-24 01:20:07,312 WARN L193 SmtUtils]: Spent 762.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 66 [2020-10-24 01:20:08,451 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 173 DAG size of output: 69 [2020-10-24 01:20:09,292 WARN L193 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 65 [2020-10-24 01:20:10,141 WARN L193 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 65 [2020-10-24 01:20:11,023 WARN L193 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 72 [2020-10-24 01:20:12,080 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 120 DAG size of output: 65 [2020-10-24 01:20:13,082 WARN L193 SmtUtils]: Spent 994.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 74 [2020-10-24 01:20:16,193 WARN L193 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:20:17,082 WARN L193 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 69 [2020-10-24 01:20:18,368 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 138 DAG size of output: 69 [2020-10-24 01:20:19,405 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 125 DAG size of output: 66 [2020-10-24 01:20:20,617 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 135 DAG size of output: 67 [2020-10-24 01:20:23,733 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:20:24,725 WARN L193 SmtUtils]: Spent 983.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 73 [2020-10-24 01:20:27,831 WARN L193 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:20:29,017 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 135 DAG size of output: 68 [2020-10-24 01:20:30,035 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 126 DAG size of output: 66 [2020-10-24 01:20:31,235 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 129 DAG size of output: 68 [2020-10-24 01:20:34,343 WARN L193 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:20:35,501 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 126 DAG size of output: 64 [2020-10-24 01:20:37,316 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 195 DAG size of output: 73 [2020-10-24 01:20:38,373 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 122 DAG size of output: 67 [2020-10-24 01:20:39,268 WARN L193 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 70 [2020-10-24 01:20:40,694 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 180 DAG size of output: 70 [2020-10-24 01:20:41,515 WARN L193 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 68 [2020-10-24 01:20:44,622 WARN L193 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:20:45,403 WARN L193 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 67 [2020-10-24 01:20:48,529 WARN L193 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:20:49,551 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2020-10-24 01:20:50,723 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 127 DAG size of output: 68 [2020-10-24 01:20:51,828 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 122 DAG size of output: 67 [2020-10-24 01:20:53,290 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 183 DAG size of output: 72 [2020-10-24 01:20:56,372 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2020-10-24 01:20:57,560 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2020-10-24 01:20:58,735 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2020-10-24 01:20:59,630 WARN L193 SmtUtils]: Spent 885.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2020-10-24 01:21:02,719 WARN L193 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2020-10-24 01:21:03,906 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2020-10-24 01:21:07,006 WARN L193 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2020-10-24 01:21:10,131 WARN L193 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:21:10,910 WARN L193 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 67 [2020-10-24 01:21:14,037 WARN L193 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:21:15,095 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 122 DAG size of output: 65 [2020-10-24 01:21:16,178 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 123 DAG size of output: 67 [2020-10-24 01:21:19,321 WARN L193 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:21:21,316 WARN L193 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 187 DAG size of output: 75 [2020-10-24 01:21:22,386 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 122 DAG size of output: 67 [2020-10-24 01:21:23,239 WARN L193 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 68 [2020-10-24 01:21:26,422 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:21:27,271 WARN L193 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 66 [2020-10-24 01:21:30,411 WARN L193 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:21:31,588 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2020-10-24 01:21:34,733 WARN L193 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:21:37,901 WARN L193 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:21:38,770 WARN L193 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 65 [2020-10-24 01:21:39,712 WARN L193 SmtUtils]: Spent 934.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 70 [2020-10-24 01:21:40,601 WARN L193 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 66 [2020-10-24 01:21:43,756 WARN L193 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:21:44,667 WARN L193 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 68 [2020-10-24 01:21:47,813 WARN L193 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:21:48,673 WARN L193 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 68 [2020-10-24 01:21:49,905 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 171 DAG size of output: 69 [2020-10-24 01:21:53,053 WARN L193 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:21:54,211 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 173 DAG size of output: 69 [2020-10-24 01:21:55,114 WARN L193 SmtUtils]: Spent 894.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 69 [2020-10-24 01:21:56,887 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 184 DAG size of output: 81 [2020-10-24 01:21:58,093 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 129 DAG size of output: 71 [2020-10-24 01:22:01,240 WARN L193 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:22:04,423 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:22:05,226 WARN L193 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 69 [2020-10-24 01:22:06,100 WARN L193 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 68 [2020-10-24 01:22:09,257 WARN L193 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:22:12,424 WARN L193 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:22:13,949 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 177 DAG size of output: 70 [2020-10-24 01:22:15,464 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 198 DAG size of output: 70 [2020-10-24 01:22:18,642 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:22:19,727 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 121 DAG size of output: 65 [2020-10-24 01:22:20,914 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 143 DAG size of output: 69 [2020-10-24 01:22:22,390 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 182 DAG size of output: 72 [2020-10-24 01:22:23,247 WARN L193 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 68 [2020-10-24 01:22:26,420 WARN L193 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:22:29,596 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:22:31,192 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 185 DAG size of output: 72 [2020-10-24 01:22:32,406 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 128 DAG size of output: 68 [2020-10-24 01:22:35,590 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:22:36,498 WARN L193 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 67 [2020-10-24 01:22:39,662 WARN L193 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 229 DAG size of output: 82 [2020-10-24 01:22:40,434 WARN L193 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 64 [2020-10-24 01:22:41,476 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 124 DAG size of output: 64 [2020-10-24 01:22:42,764 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 132 DAG size of output: 68 [2020-10-24 01:22:43,541 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 64 [2020-10-24 01:22:44,411 WARN L193 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 67