/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_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 01:10:13,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 01:10:13,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 01:10:13,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 01:10:13,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 01:10:13,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 01:10:13,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 01:10:13,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 01:10:13,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 01:10:13,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 01:10:13,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 01:10:13,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 01:10:13,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 01:10:13,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 01:10:13,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 01:10:13,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 01:10:13,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 01:10:13,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 01:10:13,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 01:10:13,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 01:10:13,999 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 01:10:14,017 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 01:10:14,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 01:10:14,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 01:10:14,023 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 01:10:14,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 01:10:14,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 01:10:14,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 01:10:14,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 01:10:14,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 01:10:14,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 01:10:14,025 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 01:10:14,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 01:10:14,026 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 01:10:14,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 01:10:14,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 01:10:14,027 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 01:10:14,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 01:10:14,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 01:10:14,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 01:10:14,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 01:10:14,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 01:10:14,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 01:10:14,028 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 01:10:14,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 01:10:14,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 01:10:14,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 01:10:14,547 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 01:10:14,550 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 01:10:14,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-10-24 01:10:14,640 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fa302d82/790e6eb54dd44d9581bd8350f0b66c0d/FLAGdcb408c06 [2020-10-24 01:10:15,518 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 01:10:15,519 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-10-24 01:10:15,530 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fa302d82/790e6eb54dd44d9581bd8350f0b66c0d/FLAGdcb408c06 [2020-10-24 01:10:15,695 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fa302d82/790e6eb54dd44d9581bd8350f0b66c0d [2020-10-24 01:10:15,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 01:10:15,713 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 01:10:15,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 01:10:15,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 01:10:15,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 01:10:15,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:10:15" (1/1) ... [2020-10-24 01:10:15,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33af22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:10:15, skipping insertion in model container [2020-10-24 01:10:15,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:10:15" (1/1) ... [2020-10-24 01:10:15,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 01:10:15,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 01:10:16,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:10:16,313 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 01:10:16,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:10:16,543 INFO L208 MainTranslator]: Completed translation [2020-10-24 01:10:16,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:10:16 WrapperNode [2020-10-24 01:10:16,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 01:10:16,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 01:10:16,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 01:10:16,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 01:10:16,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:10:16" (1/1) ... [2020-10-24 01:10:16,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:10:16" (1/1) ... [2020-10-24 01:10:16,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:10:16" (1/1) ... [2020-10-24 01:10:16,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:10:16" (1/1) ... [2020-10-24 01:10:16,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:10:16" (1/1) ... [2020-10-24 01:10:16,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:10:16" (1/1) ... [2020-10-24 01:10:16,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:10:16" (1/1) ... [2020-10-24 01:10:16,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 01:10:16,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 01:10:16,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 01:10:16,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 01:10:16,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:10:16" (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 01:10:16,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 01:10:16,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 01:10:16,795 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 01:10:16,795 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-24 01:10:16,796 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 01:10:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-24 01:10:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 01:10:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 01:10:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 01:10:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 01:10:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 01:10:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-24 01:10:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 01:10:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 01:10:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 01:10:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 01:10:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 01:10:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 01:10:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 01:10:18,808 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 01:10:18,809 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-24 01:10:18,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:10:18 BoogieIcfgContainer [2020-10-24 01:10:18,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 01:10:18,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 01:10:18,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 01:10:18,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 01:10:18,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:10:15" (1/3) ... [2020-10-24 01:10:18,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47347f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:10:18, skipping insertion in model container [2020-10-24 01:10:18,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:10:16" (2/3) ... [2020-10-24 01:10:18,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47347f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:10:18, skipping insertion in model container [2020-10-24 01:10:18,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:10:18" (3/3) ... [2020-10-24 01:10:18,822 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label17.c [2020-10-24 01:10:18,835 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 01:10:18,842 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 01:10:18,857 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 01:10:18,884 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 01:10:18,885 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 01:10:18,885 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 01:10:18,885 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 01:10:18,885 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 01:10:18,886 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 01:10:18,886 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 01:10:18,886 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 01:10:18,918 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states. [2020-10-24 01:10:18,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-24 01:10:18,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:10:18,946 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:10:18,947 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:10:18,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:10:18,954 INFO L82 PathProgramCache]: Analyzing trace with hash -9589882, now seen corresponding path program 1 times [2020-10-24 01:10:18,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:10:18,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1565780446] [2020-10-24 01:10:18,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:10:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:19,697 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-24 01:10:19,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:10:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:19,821 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 01:10:19,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1565780446] [2020-10-24 01:10:19,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:10:19,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 01:10:19,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113182391] [2020-10-24 01:10:19,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 01:10:19,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:10:19,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 01:10:19,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 01:10:19,857 INFO L87 Difference]: Start difference. First operand 537 states. Second operand 4 states. [2020-10-24 01:10:20,211 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:10:23,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:10:23,134 INFO L93 Difference]: Finished difference Result 1353 states and 1752 transitions. [2020-10-24 01:10:23,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 01:10:23,136 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-10-24 01:10:23,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:10:23,161 INFO L225 Difference]: With dead ends: 1353 [2020-10-24 01:10:23,161 INFO L226 Difference]: Without dead ends: 750 [2020-10-24 01:10:23,173 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 01:10:23,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2020-10-24 01:10:23,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 673. [2020-10-24 01:10:23,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 673 states. [2020-10-24 01:10:23,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 789 transitions. [2020-10-24 01:10:23,413 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 789 transitions. Word has length 153 [2020-10-24 01:10:23,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:10:23,414 INFO L481 AbstractCegarLoop]: Abstraction has 673 states and 789 transitions. [2020-10-24 01:10:23,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 01:10:23,415 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 789 transitions. [2020-10-24 01:10:23,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-24 01:10:23,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:10:23,424 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:10:23,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 01:10:23,425 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:10:23,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:10:23,426 INFO L82 PathProgramCache]: Analyzing trace with hash -173327740, now seen corresponding path program 1 times [2020-10-24 01:10:23,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:10:23,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993858511] [2020-10-24 01:10:23,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:10:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:23,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:10:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:23,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:10:23,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:24,189 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 01:10:24,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [993858511] [2020-10-24 01:10:24,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:10:24,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-24 01:10:24,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051535166] [2020-10-24 01:10:24,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-24 01:10:24,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:10:24,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-24 01:10:24,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-24 01:10:24,200 INFO L87 Difference]: Start difference. First operand 673 states and 789 transitions. Second operand 11 states. [2020-10-24 01:10:24,478 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-24 01:10:24,965 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-24 01:10:25,142 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:10:25,589 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-24 01:10:25,858 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-24 01:10:30,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:10:30,169 INFO L93 Difference]: Finished difference Result 2531 states and 3317 transitions. [2020-10-24 01:10:30,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-24 01:10:30,170 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 174 [2020-10-24 01:10:30,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:10:30,196 INFO L225 Difference]: With dead ends: 2531 [2020-10-24 01:10:30,197 INFO L226 Difference]: Without dead ends: 1480 [2020-10-24 01:10:30,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2020-10-24 01:10:30,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2020-10-24 01:10:30,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1248. [2020-10-24 01:10:30,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1248 states. [2020-10-24 01:10:30,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1476 transitions. [2020-10-24 01:10:30,539 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1476 transitions. Word has length 174 [2020-10-24 01:10:30,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:10:30,540 INFO L481 AbstractCegarLoop]: Abstraction has 1248 states and 1476 transitions. [2020-10-24 01:10:30,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-24 01:10:30,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1476 transitions. [2020-10-24 01:10:30,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-24 01:10:30,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:10:30,552 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:10:30,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 01:10:30,553 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:10:30,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:10:30,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1252706518, now seen corresponding path program 1 times [2020-10-24 01:10:30,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:10:30,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964776119] [2020-10-24 01:10:30,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:10:30,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:30,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:10:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:30,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:10:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:30,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:10:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:30,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-24 01:10:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:30,972 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 50 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-24 01:10:30,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964776119] [2020-10-24 01:10:30,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:10:30,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:10:30,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375332592] [2020-10-24 01:10:30,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:10:30,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:10:30,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:10:30,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:10:30,978 INFO L87 Difference]: Start difference. First operand 1248 states and 1476 transitions. Second operand 7 states. [2020-10-24 01:10:34,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:10:34,233 INFO L93 Difference]: Finished difference Result 3418 states and 4187 transitions. [2020-10-24 01:10:34,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 01:10:34,234 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 208 [2020-10-24 01:10:34,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:10:34,251 INFO L225 Difference]: With dead ends: 3418 [2020-10-24 01:10:34,252 INFO L226 Difference]: Without dead ends: 2202 [2020-10-24 01:10:34,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-24 01:10:34,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2202 states. [2020-10-24 01:10:34,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2202 to 2136. [2020-10-24 01:10:34,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2136 states. [2020-10-24 01:10:34,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 2543 transitions. [2020-10-24 01:10:34,768 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 2543 transitions. Word has length 208 [2020-10-24 01:10:34,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:10:34,768 INFO L481 AbstractCegarLoop]: Abstraction has 2136 states and 2543 transitions. [2020-10-24 01:10:34,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:10:34,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 2543 transitions. [2020-10-24 01:10:34,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-10-24 01:10:34,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:10:34,780 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:10:34,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 01:10:34,780 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:10:34,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:10:34,781 INFO L82 PathProgramCache]: Analyzing trace with hash -2028575115, now seen corresponding path program 1 times [2020-10-24 01:10:34,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:10:34,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1453561139] [2020-10-24 01:10:34,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:10:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:34,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:10:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:34,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:10:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:34,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:10:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:34,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-24 01:10:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:35,067 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 01:10:35,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1453561139] [2020-10-24 01:10:35,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:10:35,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:10:35,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712192071] [2020-10-24 01:10:35,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:10:35,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:10:35,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:10:35,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:10:35,071 INFO L87 Difference]: Start difference. First operand 2136 states and 2543 transitions. Second operand 7 states. [2020-10-24 01:10:35,758 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:10:38,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:10:38,841 INFO L93 Difference]: Finished difference Result 4974 states and 6090 transitions. [2020-10-24 01:10:38,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 01:10:38,842 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 225 [2020-10-24 01:10:38,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:10:38,868 INFO L225 Difference]: With dead ends: 4974 [2020-10-24 01:10:38,868 INFO L226 Difference]: Without dead ends: 3011 [2020-10-24 01:10:38,878 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 01:10:38,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3011 states. [2020-10-24 01:10:39,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3011 to 2936. [2020-10-24 01:10:39,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2936 states. [2020-10-24 01:10:39,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 3541 transitions. [2020-10-24 01:10:39,514 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 3541 transitions. Word has length 225 [2020-10-24 01:10:39,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:10:39,515 INFO L481 AbstractCegarLoop]: Abstraction has 2936 states and 3541 transitions. [2020-10-24 01:10:39,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:10:39,516 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 3541 transitions. [2020-10-24 01:10:39,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-24 01:10:39,531 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:10:39,531 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, 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, 1, 1] [2020-10-24 01:10:39,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 01:10:39,532 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:10:39,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:10:39,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1748014486, now seen corresponding path program 1 times [2020-10-24 01:10:39,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:10:39,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [970574577] [2020-10-24 01:10:39,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:10:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:39,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:10:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:39,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:10:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:39,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:10:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:39,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-24 01:10:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:39,880 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 78 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-24 01:10:39,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [970574577] [2020-10-24 01:10:39,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:10:39,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:10:39,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456479854] [2020-10-24 01:10:39,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:10:39,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:10:39,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:10:39,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:10:39,885 INFO L87 Difference]: Start difference. First operand 2936 states and 3541 transitions. Second operand 7 states. [2020-10-24 01:10:41,030 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-24 01:10:43,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:10:43,211 INFO L93 Difference]: Finished difference Result 6468 states and 8187 transitions. [2020-10-24 01:10:43,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 01:10:43,212 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 239 [2020-10-24 01:10:43,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:10:43,249 INFO L225 Difference]: With dead ends: 6468 [2020-10-24 01:10:43,249 INFO L226 Difference]: Without dead ends: 3705 [2020-10-24 01:10:43,265 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 01:10:43,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3705 states. [2020-10-24 01:10:43,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3705 to 3565. [2020-10-24 01:10:43,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3565 states. [2020-10-24 01:10:43,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3565 states to 3565 states and 4275 transitions. [2020-10-24 01:10:43,968 INFO L78 Accepts]: Start accepts. Automaton has 3565 states and 4275 transitions. Word has length 239 [2020-10-24 01:10:43,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:10:43,969 INFO L481 AbstractCegarLoop]: Abstraction has 3565 states and 4275 transitions. [2020-10-24 01:10:43,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:10:43,969 INFO L276 IsEmpty]: Start isEmpty. Operand 3565 states and 4275 transitions. [2020-10-24 01:10:43,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-24 01:10:43,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:10:43,985 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:10:43,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-24 01:10:43,985 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:10:43,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:10:43,986 INFO L82 PathProgramCache]: Analyzing trace with hash -488065714, now seen corresponding path program 1 times [2020-10-24 01:10:43,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:10:43,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1124312187] [2020-10-24 01:10:43,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:10:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:44,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:10:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:44,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:10:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:44,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:10:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:44,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-24 01:10:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:44,307 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 93 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-24 01:10:44,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1124312187] [2020-10-24 01:10:44,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:10:44,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:10:44,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736017684] [2020-10-24 01:10:44,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:10:44,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:10:44,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:10:44,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:10:44,310 INFO L87 Difference]: Start difference. First operand 3565 states and 4275 transitions. Second operand 7 states. [2020-10-24 01:10:47,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:10:47,956 INFO L93 Difference]: Finished difference Result 7130 states and 8548 transitions. [2020-10-24 01:10:47,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 01:10:47,961 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 239 [2020-10-24 01:10:47,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:10:47,986 INFO L225 Difference]: With dead ends: 7130 [2020-10-24 01:10:47,987 INFO L226 Difference]: Without dead ends: 3581 [2020-10-24 01:10:48,000 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-24 01:10:48,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3581 states. [2020-10-24 01:10:48,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3581 to 3526. [2020-10-24 01:10:48,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3526 states. [2020-10-24 01:10:48,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 4009 transitions. [2020-10-24 01:10:48,517 INFO L78 Accepts]: Start accepts. Automaton has 3526 states and 4009 transitions. Word has length 239 [2020-10-24 01:10:48,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:10:48,518 INFO L481 AbstractCegarLoop]: Abstraction has 3526 states and 4009 transitions. [2020-10-24 01:10:48,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:10:48,518 INFO L276 IsEmpty]: Start isEmpty. Operand 3526 states and 4009 transitions. [2020-10-24 01:10:48,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-24 01:10:48,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:10:48,531 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:10:48,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-24 01:10:48,531 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:10:48,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:10:48,532 INFO L82 PathProgramCache]: Analyzing trace with hash 956643824, now seen corresponding path program 1 times [2020-10-24 01:10:48,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:10:48,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [873932398] [2020-10-24 01:10:48,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:10:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:48,754 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-24 01:10:48,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:10:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:48,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:10:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:48,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:10:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:48,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-24 01:10:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:48,930 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 96 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-24 01:10:48,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [873932398] [2020-10-24 01:10:48,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:10:48,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:10:48,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444159791] [2020-10-24 01:10:48,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:10:48,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:10:48,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:10:48,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:10:48,933 INFO L87 Difference]: Start difference. First operand 3526 states and 4009 transitions. Second operand 7 states. [2020-10-24 01:10:51,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:10:51,876 INFO L93 Difference]: Finished difference Result 8393 states and 9804 transitions. [2020-10-24 01:10:51,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 01:10:51,877 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 242 [2020-10-24 01:10:51,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:10:51,909 INFO L225 Difference]: With dead ends: 8393 [2020-10-24 01:10:51,909 INFO L226 Difference]: Without dead ends: 5040 [2020-10-24 01:10:51,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-24 01:10:51,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5040 states. [2020-10-24 01:10:52,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5040 to 4868. [2020-10-24 01:10:52,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4868 states. [2020-10-24 01:10:52,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4868 states to 4868 states and 5527 transitions. [2020-10-24 01:10:52,900 INFO L78 Accepts]: Start accepts. Automaton has 4868 states and 5527 transitions. Word has length 242 [2020-10-24 01:10:52,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:10:52,900 INFO L481 AbstractCegarLoop]: Abstraction has 4868 states and 5527 transitions. [2020-10-24 01:10:52,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:10:52,901 INFO L276 IsEmpty]: Start isEmpty. Operand 4868 states and 5527 transitions. [2020-10-24 01:10:52,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-10-24 01:10:52,917 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:10:52,917 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:10:52,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-24 01:10:52,918 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:10:52,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:10:52,918 INFO L82 PathProgramCache]: Analyzing trace with hash 585262443, now seen corresponding path program 1 times [2020-10-24 01:10:52,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:10:52,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [883711120] [2020-10-24 01:10:52,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:10:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:53,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:10:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:53,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:10:53,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:53,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:10:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:53,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-24 01:10:53,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:53,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-24 01:10:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:10:53,288 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 120 proven. 28 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-24 01:10:53,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [883711120] [2020-10-24 01:10:53,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:10:53,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-24 01:10:53,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659805333] [2020-10-24 01:10:53,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 01:10:53,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:10:53,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 01:10:53,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-24 01:10:53,291 INFO L87 Difference]: Start difference. First operand 4868 states and 5527 transitions. Second operand 10 states. [2020-10-24 01:10:53,747 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-10-24 01:10:54,279 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-24 01:10:54,691 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:10:55,247 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2020-10-24 01:10:56,120 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-24 01:10:56,985 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-24 01:10:57,610 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-24 01:10:57,919 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:11:01,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:11:01,021 INFO L93 Difference]: Finished difference Result 10306 states and 11718 transitions. [2020-10-24 01:11:01,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-24 01:11:01,022 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 264 [2020-10-24 01:11:01,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:11:01,056 INFO L225 Difference]: With dead ends: 10306 [2020-10-24 01:11:01,056 INFO L226 Difference]: Without dead ends: 5611 [2020-10-24 01:11:01,074 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=312, Invalid=1170, Unknown=0, NotChecked=0, Total=1482 [2020-10-24 01:11:01,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5611 states. [2020-10-24 01:11:02,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5611 to 5409. [2020-10-24 01:11:02,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5409 states. [2020-10-24 01:11:02,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5409 states to 5409 states and 6053 transitions. [2020-10-24 01:11:02,187 INFO L78 Accepts]: Start accepts. Automaton has 5409 states and 6053 transitions. Word has length 264 [2020-10-24 01:11:02,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:11:02,188 INFO L481 AbstractCegarLoop]: Abstraction has 5409 states and 6053 transitions. [2020-10-24 01:11:02,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 01:11:02,188 INFO L276 IsEmpty]: Start isEmpty. Operand 5409 states and 6053 transitions. [2020-10-24 01:11:02,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-10-24 01:11:02,204 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:11:02,204 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:11:02,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-24 01:11:02,205 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:11:02,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:11:02,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1127797457, now seen corresponding path program 1 times [2020-10-24 01:11:02,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:11:02,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57612659] [2020-10-24 01:11:02,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:11:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:02,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:11:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:02,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:11:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:02,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:11:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:02,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-24 01:11:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:02,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-24 01:11:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:02,648 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 127 proven. 18 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-24 01:11:02,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57612659] [2020-10-24 01:11:02,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:11:02,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-24 01:11:02,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698371537] [2020-10-24 01:11:02,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:11:02,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:11:02,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:11:02,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:11:02,651 INFO L87 Difference]: Start difference. First operand 5409 states and 6053 transitions. Second operand 8 states. [2020-10-24 01:11:03,063 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 01:11:03,691 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-24 01:11:04,640 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-24 01:11:07,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:11:07,582 INFO L93 Difference]: Finished difference Result 12612 states and 14226 transitions. [2020-10-24 01:11:07,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-24 01:11:07,582 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 267 [2020-10-24 01:11:07,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:11:07,615 INFO L225 Difference]: With dead ends: 12612 [2020-10-24 01:11:07,615 INFO L226 Difference]: Without dead ends: 6480 [2020-10-24 01:11:07,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-24 01:11:07,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6480 states. [2020-10-24 01:11:08,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6480 to 4922. [2020-10-24 01:11:08,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4922 states. [2020-10-24 01:11:08,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4922 states to 4922 states and 5354 transitions. [2020-10-24 01:11:08,520 INFO L78 Accepts]: Start accepts. Automaton has 4922 states and 5354 transitions. Word has length 267 [2020-10-24 01:11:08,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:11:08,520 INFO L481 AbstractCegarLoop]: Abstraction has 4922 states and 5354 transitions. [2020-10-24 01:11:08,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:11:08,520 INFO L276 IsEmpty]: Start isEmpty. Operand 4922 states and 5354 transitions. [2020-10-24 01:11:08,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-10-24 01:11:08,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:11:08,528 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:08,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-24 01:11:08,529 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:11:08,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:11:08,529 INFO L82 PathProgramCache]: Analyzing trace with hash -157973390, now seen corresponding path program 1 times [2020-10-24 01:11:08,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:11:08,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381059357] [2020-10-24 01:11:08,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:11:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:08,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:11:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:08,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:11:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:08,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:11:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:08,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-24 01:11:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:08,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-24 01:11:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:08,877 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 116 proven. 36 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-24 01:11:08,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381059357] [2020-10-24 01:11:08,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:11:08,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-24 01:11:08,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299874788] [2020-10-24 01:11:08,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:11:08,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:11:08,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:11:08,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:11:08,879 INFO L87 Difference]: Start difference. First operand 4922 states and 5354 transitions. Second operand 8 states. [2020-10-24 01:11:09,623 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-24 01:11:09,916 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:11:10,737 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 01:11:13,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:11:13,569 INFO L93 Difference]: Finished difference Result 10112 states and 11015 transitions. [2020-10-24 01:11:13,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-24 01:11:13,570 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 278 [2020-10-24 01:11:13,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:11:13,595 INFO L225 Difference]: With dead ends: 10112 [2020-10-24 01:11:13,595 INFO L226 Difference]: Without dead ends: 5363 [2020-10-24 01:11:13,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-24 01:11:13,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5363 states. [2020-10-24 01:11:14,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5363 to 5250. [2020-10-24 01:11:14,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5250 states. [2020-10-24 01:11:14,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5250 states to 5250 states and 5693 transitions. [2020-10-24 01:11:14,762 INFO L78 Accepts]: Start accepts. Automaton has 5250 states and 5693 transitions. Word has length 278 [2020-10-24 01:11:14,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:11:14,763 INFO L481 AbstractCegarLoop]: Abstraction has 5250 states and 5693 transitions. [2020-10-24 01:11:14,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:11:14,763 INFO L276 IsEmpty]: Start isEmpty. Operand 5250 states and 5693 transitions. [2020-10-24 01:11:14,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-10-24 01:11:14,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:11:14,772 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1] [2020-10-24 01:11:14,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-24 01:11:14,772 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:11:14,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:11:14,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1987273960, now seen corresponding path program 1 times [2020-10-24 01:11:14,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:11:14,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381823232] [2020-10-24 01:11:14,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:11:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:14,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:11:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:14,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:11:14,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:15,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-24 01:11:15,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:15,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-24 01:11:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:15,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-24 01:11:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:15,191 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 198 proven. 28 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-24 01:11:15,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381823232] [2020-10-24 01:11:15,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:11:15,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-24 01:11:15,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449314302] [2020-10-24 01:11:15,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 01:11:15,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:11:15,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 01:11:15,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-24 01:11:15,193 INFO L87 Difference]: Start difference. First operand 5250 states and 5693 transitions. Second operand 10 states. [2020-10-24 01:11:15,585 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-24 01:11:16,696 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-10-24 01:11:16,926 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:11:17,603 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-24 01:11:18,498 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:11:19,218 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-24 01:11:19,945 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:11:20,347 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 01:11:21,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:11:21,891 INFO L93 Difference]: Finished difference Result 10831 states and 11763 transitions. [2020-10-24 01:11:21,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-24 01:11:21,891 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 332 [2020-10-24 01:11:21,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:11:21,918 INFO L225 Difference]: With dead ends: 10831 [2020-10-24 01:11:21,918 INFO L226 Difference]: Without dead ends: 5754 [2020-10-24 01:11:21,938 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=279, Invalid=1053, Unknown=0, NotChecked=0, Total=1332 [2020-10-24 01:11:21,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5754 states. [2020-10-24 01:11:23,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5754 to 5699. [2020-10-24 01:11:23,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5699 states. [2020-10-24 01:11:23,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5699 states to 5699 states and 6124 transitions. [2020-10-24 01:11:23,249 INFO L78 Accepts]: Start accepts. Automaton has 5699 states and 6124 transitions. Word has length 332 [2020-10-24 01:11:23,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:11:23,250 INFO L481 AbstractCegarLoop]: Abstraction has 5699 states and 6124 transitions. [2020-10-24 01:11:23,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 01:11:23,250 INFO L276 IsEmpty]: Start isEmpty. Operand 5699 states and 6124 transitions. [2020-10-24 01:11:23,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2020-10-24 01:11:23,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:11:23,263 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 01:11:23,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-24 01:11:23,263 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:11:23,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:11:23,264 INFO L82 PathProgramCache]: Analyzing trace with hash -544337322, now seen corresponding path program 1 times [2020-10-24 01:11:23,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:11:23,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1846864150] [2020-10-24 01:11:23,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:11:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:23,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:11:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:23,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:11:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:23,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-24 01:11:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:23,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-24 01:11:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:23,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-24 01:11:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:23,742 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 243 proven. 18 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2020-10-24 01:11:23,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1846864150] [2020-10-24 01:11:23,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:11:23,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-24 01:11:23,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100337516] [2020-10-24 01:11:23,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:11:23,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:11:23,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:11:23,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:11:23,746 INFO L87 Difference]: Start difference. First operand 5699 states and 6124 transitions. Second operand 8 states. [2020-10-24 01:11:24,028 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:11:24,187 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-24 01:11:25,332 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 01:11:27,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:11:27,823 INFO L93 Difference]: Finished difference Result 11436 states and 12292 transitions. [2020-10-24 01:11:27,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-24 01:11:27,829 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 372 [2020-10-24 01:11:27,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:11:27,856 INFO L225 Difference]: With dead ends: 11436 [2020-10-24 01:11:27,856 INFO L226 Difference]: Without dead ends: 5910 [2020-10-24 01:11:27,869 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-24 01:11:27,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5910 states. [2020-10-24 01:11:28,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5910 to 5850. [2020-10-24 01:11:28,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5850 states. [2020-10-24 01:11:28,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5850 states to 5850 states and 6266 transitions. [2020-10-24 01:11:28,969 INFO L78 Accepts]: Start accepts. Automaton has 5850 states and 6266 transitions. Word has length 372 [2020-10-24 01:11:28,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:11:28,970 INFO L481 AbstractCegarLoop]: Abstraction has 5850 states and 6266 transitions. [2020-10-24 01:11:28,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:11:28,970 INFO L276 IsEmpty]: Start isEmpty. Operand 5850 states and 6266 transitions. [2020-10-24 01:11:28,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2020-10-24 01:11:28,980 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:11:28,981 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:11:28,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-24 01:11:28,981 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:11:28,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:11:28,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1320190865, now seen corresponding path program 1 times [2020-10-24 01:11:28,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:11:28,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401620594] [2020-10-24 01:11:28,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:11:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:29,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:11:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:29,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:11:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:29,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-24 01:11:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:29,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-24 01:11:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:29,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-24 01:11:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:29,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-24 01:11:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:29,392 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 242 proven. 5 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-10-24 01:11:29,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401620594] [2020-10-24 01:11:29,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:11:29,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-24 01:11:29,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298265964] [2020-10-24 01:11:29,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 01:11:29,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:11:29,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 01:11:29,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 01:11:29,394 INFO L87 Difference]: Start difference. First operand 5850 states and 6266 transitions. Second operand 5 states. [2020-10-24 01:11:30,585 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:11:32,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:11:32,444 INFO L93 Difference]: Finished difference Result 11835 states and 12690 transitions. [2020-10-24 01:11:32,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 01:11:32,444 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 393 [2020-10-24 01:11:32,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:11:32,467 INFO L225 Difference]: With dead ends: 11835 [2020-10-24 01:11:32,467 INFO L226 Difference]: Without dead ends: 5503 [2020-10-24 01:11:32,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 01:11:32,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5503 states. [2020-10-24 01:11:33,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5503 to 5485. [2020-10-24 01:11:33,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5485 states. [2020-10-24 01:11:33,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5485 states to 5485 states and 5838 transitions. [2020-10-24 01:11:33,862 INFO L78 Accepts]: Start accepts. Automaton has 5485 states and 5838 transitions. Word has length 393 [2020-10-24 01:11:33,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:11:33,863 INFO L481 AbstractCegarLoop]: Abstraction has 5485 states and 5838 transitions. [2020-10-24 01:11:33,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 01:11:33,863 INFO L276 IsEmpty]: Start isEmpty. Operand 5485 states and 5838 transitions. [2020-10-24 01:11:33,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2020-10-24 01:11:33,877 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:11:33,877 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:11:33,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-24 01:11:33,878 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:11:33,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:11:33,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1241804021, now seen corresponding path program 1 times [2020-10-24 01:11:33,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:11:33,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [523564974] [2020-10-24 01:11:33,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:11:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:34,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:11:34,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:34,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:11:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:34,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-24 01:11:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:34,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-24 01:11:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:34,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-24 01:11:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:34,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-24 01:11:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:34,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-10-24 01:11:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:34,371 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 366 proven. 4 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2020-10-24 01:11:34,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [523564974] [2020-10-24 01:11:34,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:11:34,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:11:34,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275343625] [2020-10-24 01:11:34,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:11:34,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:11:34,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:11:34,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:11:34,375 INFO L87 Difference]: Start difference. First operand 5485 states and 5838 transitions. Second operand 7 states. [2020-10-24 01:11:37,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:11:37,972 INFO L93 Difference]: Finished difference Result 10767 states and 11526 transitions. [2020-10-24 01:11:37,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 01:11:37,972 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 401 [2020-10-24 01:11:37,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:11:37,993 INFO L225 Difference]: With dead ends: 10767 [2020-10-24 01:11:37,994 INFO L226 Difference]: Without dead ends: 5150 [2020-10-24 01:11:38,004 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 01:11:38,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5150 states. [2020-10-24 01:11:38,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5150 to 3434. [2020-10-24 01:11:38,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3434 states. [2020-10-24 01:11:38,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 3623 transitions. [2020-10-24 01:11:38,862 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 3623 transitions. Word has length 401 [2020-10-24 01:11:38,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:11:38,862 INFO L481 AbstractCegarLoop]: Abstraction has 3434 states and 3623 transitions. [2020-10-24 01:11:38,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:11:38,862 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 3623 transitions. [2020-10-24 01:11:38,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2020-10-24 01:11:38,868 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:11:38,868 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:11:38,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-24 01:11:38,869 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:11:38,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:11:38,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1458869766, now seen corresponding path program 1 times [2020-10-24 01:11:38,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:11:38,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2006755734] [2020-10-24 01:11:38,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:11:38,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:39,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:11:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:39,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:11:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:39,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-24 01:11:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:39,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-24 01:11:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:39,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-24 01:11:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:39,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-24 01:11:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:39,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2020-10-24 01:11:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:39,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2020-10-24 01:11:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:39,710 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 370 proven. 56 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2020-10-24 01:11:39,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2006755734] [2020-10-24 01:11:39,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:11:39,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-24 01:11:39,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357290258] [2020-10-24 01:11:39,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-24 01:11:39,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:11:39,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-24 01:11:39,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-24 01:11:39,713 INFO L87 Difference]: Start difference. First operand 3434 states and 3623 transitions. Second operand 14 states. [2020-10-24 01:11:39,956 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-24 01:11:41,504 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-24 01:11:43,035 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-24 01:11:43,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:11:43,444 INFO L93 Difference]: Finished difference Result 6783 states and 7160 transitions. [2020-10-24 01:11:43,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-24 01:11:43,444 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 463 [2020-10-24 01:11:43,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:11:43,455 INFO L225 Difference]: With dead ends: 6783 [2020-10-24 01:11:43,456 INFO L226 Difference]: Without dead ends: 3434 [2020-10-24 01:11:43,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2020-10-24 01:11:43,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2020-10-24 01:11:44,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 3428. [2020-10-24 01:11:44,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3428 states. [2020-10-24 01:11:44,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3428 states to 3428 states and 3616 transitions. [2020-10-24 01:11:44,408 INFO L78 Accepts]: Start accepts. Automaton has 3428 states and 3616 transitions. Word has length 463 [2020-10-24 01:11:44,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:11:44,408 INFO L481 AbstractCegarLoop]: Abstraction has 3428 states and 3616 transitions. [2020-10-24 01:11:44,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-24 01:11:44,408 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 3616 transitions. [2020-10-24 01:11:44,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2020-10-24 01:11:44,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:11:44,416 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:11:44,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-24 01:11:44,416 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:11:44,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:11:44,417 INFO L82 PathProgramCache]: Analyzing trace with hash -215976248, now seen corresponding path program 1 times [2020-10-24 01:11:44,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:11:44,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2010418842] [2020-10-24 01:11:44,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:11:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:44,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:11:44,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:44,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:11:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:44,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-24 01:11:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:44,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-24 01:11:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:44,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-24 01:11:44,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:44,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-24 01:11:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:44,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2020-10-24 01:11:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:44,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2020-10-24 01:11:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:11:45,302 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 390 proven. 56 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2020-10-24 01:11:45,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2010418842] [2020-10-24 01:11:45,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:11:45,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-24 01:11:45,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155013901] [2020-10-24 01:11:45,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-24 01:11:45,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:11:45,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-24 01:11:45,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2020-10-24 01:11:45,307 INFO L87 Difference]: Start difference. First operand 3428 states and 3616 transitions. Second operand 14 states. [2020-10-24 01:11:45,538 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-24 01:11:46,893 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-24 01:11:47,019 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-24 01:11:48,021 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-24 01:11:50,094 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-24 01:11:50,938 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-24 01:11:51,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:11:51,638 INFO L93 Difference]: Finished difference Result 7010 states and 7425 transitions. [2020-10-24 01:11:51,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-24 01:11:51,639 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 483 [2020-10-24 01:11:51,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:11:51,645 INFO L225 Difference]: With dead ends: 7010 [2020-10-24 01:11:51,645 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 01:11:51,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2020-10-24 01:11:51,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 01:11:51,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 01:11:51,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 01:11:51,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 01:11:51,653 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 483 [2020-10-24 01:11:51,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:11:51,653 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 01:11:51,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-24 01:11:51,654 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 01:11:51,654 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 01:11:51,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-24 01:11:51,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 01:11:52,060 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-24 01:12:15,053 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 222 [2020-10-24 01:12:38,249 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 222 [2020-10-24 01:12:39,037 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 222 [2020-10-24 01:12:39,169 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 222 [2020-10-24 01:12:50,547 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 222 [2020-10-24 01:13:45,580 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 222 [2020-10-24 01:13:47,362 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 161 [2020-10-24 01:14:21,473 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 222 [2020-10-24 01:14:21,630 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 222 [2020-10-24 01:14:21,761 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 222 [2020-10-24 01:14:22,998 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 222 [2020-10-24 01:14:31,603 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-10-24 01:14:34,503 WARN L193 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-10-24 01:14:37,324 WARN L193 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-10-24 01:14:40,159 WARN L193 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-10-24 01:14:41,127 WARN L193 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-10-24 01:14:42,341 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-10-24 01:14:43,334 WARN L193 SmtUtils]: Spent 985.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-10-24 01:14:46,169 WARN L193 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-10-24 01:14:47,399 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-10-24 01:14:50,252 WARN L193 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-10-24 01:14:51,559 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 223 DAG size of output: 80 [2020-10-24 01:14:52,622 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 218 DAG size of output: 78 [2020-10-24 01:14:53,491 WARN L193 SmtUtils]: Spent 861.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 74 [2020-10-24 01:14:54,436 WARN L193 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 78 [2020-10-24 01:14:55,495 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 170 DAG size of output: 74 [2020-10-24 01:14:57,314 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 231 DAG size of output: 89 [2020-10-24 01:14:59,967 WARN L193 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:15:01,220 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 221 DAG size of output: 82 [2020-10-24 01:15:02,235 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 225 DAG size of output: 80 [2020-10-24 01:15:04,871 WARN L193 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:15:07,489 WARN L193 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:15:08,519 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-10-24 01:15:09,375 WARN L193 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 74 [2020-10-24 01:15:10,651 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 167 DAG size of output: 76 [2020-10-24 01:15:11,815 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 218 DAG size of output: 75 [2020-10-24 01:15:14,642 WARN L193 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-10-24 01:15:15,441 WARN L193 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 74 [2020-10-24 01:15:16,448 WARN L193 SmtUtils]: Spent 970.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-10-24 01:15:17,551 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 168 DAG size of output: 73 [2020-10-24 01:15:18,732 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 226 DAG size of output: 77 [2020-10-24 01:15:19,788 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-10-24 01:15:20,704 WARN L193 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 79 [2020-10-24 01:15:23,395 WARN L193 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:15:24,474 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 218 DAG size of output: 78 [2020-10-24 01:15:27,142 WARN L193 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:15:27,997 WARN L193 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 74 [2020-10-24 01:15:28,836 WARN L193 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 74 [2020-10-24 01:15:29,748 WARN L193 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 77 [2020-10-24 01:15:32,381 WARN L193 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:15:33,444 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 173 DAG size of output: 75 [2020-10-24 01:15:34,497 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-10-24 01:15:35,326 WARN L193 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 74 [2020-10-24 01:15:36,644 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 173 DAG size of output: 81 [2020-10-24 01:15:38,226 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 185 DAG size of output: 87 [2020-10-24 01:15:39,386 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 182 DAG size of output: 77 [2020-10-24 01:15:40,282 WARN L193 SmtUtils]: Spent 889.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 76 [2020-10-24 01:15:42,933 WARN L193 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:15:44,016 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 176 DAG size of output: 75 [2020-10-24 01:15:45,214 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 227 DAG size of output: 76 [2020-10-24 01:15:46,158 WARN L193 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 76 [2020-10-24 01:15:47,281 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 170 DAG size of output: 75 [2020-10-24 01:15:48,172 WARN L193 SmtUtils]: Spent 885.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 69 [2020-10-24 01:15:49,071 WARN L193 SmtUtils]: Spent 892.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 76 [2020-10-24 01:15:49,873 WARN L193 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 72 [2020-10-24 01:15:51,180 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 223 DAG size of output: 80 [2020-10-24 01:15:52,056 WARN L193 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 75 [2020-10-24 01:15:53,382 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 174 DAG size of output: 81 [2020-10-24 01:15:56,036 WARN L193 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:15:56,907 WARN L193 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 76 [2020-10-24 01:15:57,915 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 186 DAG size of output: 67 [2020-10-24 01:15:59,164 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-10-24 01:15:59,972 WARN L193 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 74 [2020-10-24 01:16:02,828 WARN L193 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-10-24 01:16:03,625 WARN L193 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 72 [2020-10-24 01:16:04,625 WARN L193 SmtUtils]: Spent 992.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-10-24 01:16:07,524 WARN L193 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-10-24 01:16:10,452 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-10-24 01:16:13,379 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-10-24 01:16:14,376 WARN L193 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-10-24 01:16:15,369 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-10-24 01:16:16,360 WARN L193 SmtUtils]: Spent 983.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-10-24 01:16:19,261 WARN L193 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-10-24 01:16:21,933 WARN L193 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:16:22,745 WARN L193 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 74 [2020-10-24 01:16:24,351 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 184 DAG size of output: 83 [2020-10-24 01:16:27,021 WARN L193 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:16:27,922 WARN L193 SmtUtils]: Spent 892.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 69 [2020-10-24 01:16:29,121 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 227 DAG size of output: 78 [2020-10-24 01:16:30,083 WARN L193 SmtUtils]: Spent 955.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 77 [2020-10-24 01:16:31,221 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 177 DAG size of output: 78 [2020-10-24 01:16:32,586 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 175 DAG size of output: 76 [2020-10-24 01:16:33,495 WARN L193 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 74 [2020-10-24 01:16:34,876 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 231 DAG size of output: 79 [2020-10-24 01:16:35,716 WARN L193 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 74 [2020-10-24 01:16:37,107 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 232 DAG size of output: 79 [2020-10-24 01:16:38,201 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 170 DAG size of output: 72 [2020-10-24 01:16:40,881 WARN L193 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:16:41,763 WARN L193 SmtUtils]: Spent 875.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 77 [2020-10-24 01:16:42,850 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 170 DAG size of output: 72 [2020-10-24 01:16:43,665 WARN L193 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 74 [2020-10-24 01:16:44,534 WARN L193 SmtUtils]: Spent 861.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 77 [2020-10-24 01:16:45,723 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 183 DAG size of output: 79 [2020-10-24 01:16:46,971 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-10-24 01:16:47,780 WARN L193 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 72 [2020-10-24 01:16:50,658 WARN L193 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-10-24 01:16:53,348 WARN L193 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:16:54,351 WARN L193 SmtUtils]: Spent 994.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-10-24 01:16:57,280 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-10-24 01:17:00,169 WARN L193 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-10-24 01:17:03,105 WARN L193 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-10-24 01:17:04,113 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-10-24 01:17:05,444 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 174 DAG size of output: 81 [2020-10-24 01:17:07,012 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 184 DAG size of output: 83 [2020-10-24 01:17:09,701 WARN L193 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:17:10,595 WARN L193 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 73 [2020-10-24 01:17:11,412 WARN L193 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 72 [2020-10-24 01:17:12,373 WARN L193 SmtUtils]: Spent 954.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 75 [2020-10-24 01:17:14,017 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 226 DAG size of output: 81 [2020-10-24 01:17:15,506 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 223 DAG size of output: 78 [2020-10-24 01:17:16,624 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 178 DAG size of output: 74 [2020-10-24 01:17:18,036 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 185 DAG size of output: 79 [2020-10-24 01:17:19,200 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 177 DAG size of output: 78 [2020-10-24 01:17:20,104 WARN L193 SmtUtils]: Spent 896.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 69 [2020-10-24 01:17:21,205 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 172 DAG size of output: 74 [2020-10-24 01:17:24,057 WARN L193 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 268 DAG size of output: 93 [2020-10-24 01:17:25,397 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 223 DAG size of output: 80 [2020-10-24 01:17:28,101 WARN L193 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:17:29,493 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 177 DAG size of output: 76 [2020-10-24 01:17:30,508 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-10-24 01:17:31,773 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-10-24 01:17:34,721 WARN L193 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-10-24 01:17:36,102 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 227 DAG size of output: 76 [2020-10-24 01:17:37,371 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 176 DAG size of output: 76 [2020-10-24 01:17:40,081 WARN L193 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:17:41,007 WARN L193 SmtUtils]: Spent 918.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 79 [2020-10-24 01:17:42,142 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 170 DAG size of output: 74 [2020-10-24 01:17:43,321 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 172 DAG size of output: 76 [2020-10-24 01:17:44,182 WARN L193 SmtUtils]: Spent 854.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 75 [2020-10-24 01:17:45,261 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-10-24 01:17:46,361 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 170 DAG size of output: 72 [2020-10-24 01:17:49,082 WARN L193 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:17:50,784 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 230 DAG size of output: 80 [2020-10-24 01:17:51,667 WARN L193 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 75 [2020-10-24 01:17:53,082 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 177 DAG size of output: 76 [2020-10-24 01:17:54,174 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-10-24 01:17:55,129 WARN L193 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 77 [2020-10-24 01:17:56,350 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-10-24 01:17:57,433 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-10-24 01:17:58,679 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 176 DAG size of output: 76 [2020-10-24 01:17:59,993 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 183 DAG size of output: 79 [2020-10-24 01:18:01,046 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 183 DAG size of output: 81 [2020-10-24 01:18:02,037 WARN L193 SmtUtils]: Spent 985.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 82 [2020-10-24 01:18:03,221 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 171 DAG size of output: 75 [2020-10-24 01:18:04,183 WARN L193 SmtUtils]: Spent 955.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 78 [2020-10-24 01:18:05,160 WARN L193 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 80 [2020-10-24 01:18:06,685 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 198 DAG size of output: 81 [2020-10-24 01:18:07,815 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 170 DAG size of output: 72 [2020-10-24 01:18:09,096 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-10-24 01:18:10,144 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 186 DAG size of output: 67 [2020-10-24 01:18:13,123 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-10-24 01:18:16,111 WARN L193 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-10-24 01:18:17,160 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 186 DAG size of output: 67 [2020-10-24 01:18:18,205 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 186 DAG size of output: 67 [2020-10-24 01:18:19,234 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-10-24 01:18:20,193 WARN L193 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 78 [2020-10-24 01:18:22,945 WARN L193 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:18:24,050 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 171 DAG size of output: 73 [2020-10-24 01:18:25,157 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 173 DAG size of output: 75 [2020-10-24 01:18:26,499 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 167 DAG size of output: 75 [2020-10-24 01:18:29,470 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-10-24 01:18:32,430 WARN L193 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-10-24 01:18:33,678 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 222 DAG size of output: 77 [2020-10-24 01:18:34,871 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 177 DAG size of output: 78 [2020-10-24 01:18:37,843 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-10-24 01:18:38,888 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-10-24 01:18:39,925 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-10-24 01:18:40,964 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-10-24 01:18:43,980 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-10-24 01:18:45,280 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-10-24 01:18:46,321 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-10-24 01:18:49,337 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-10-24 01:18:50,382 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-10-24 01:18:53,400 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-10-24 01:18:54,433 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-10-24 01:18:55,541 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 168 DAG size of output: 72 [2020-10-24 01:18:56,644 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 171 DAG size of output: 73 [2020-10-24 01:18:57,794 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 169 DAG size of output: 74 [2020-10-24 01:19:00,561 WARN L193 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:19:01,809 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 222 DAG size of output: 77 [2020-10-24 01:19:04,571 WARN L193 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:19:05,691 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 173 DAG size of output: 75 [2020-10-24 01:19:06,630 WARN L193 SmtUtils]: Spent 931.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 77 [2020-10-24 01:19:07,676 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-10-24 01:19:10,649 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-10-24 01:19:13,623 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-10-24 01:19:14,832 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 172 DAG size of output: 76 [2020-10-24 01:19:16,179 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 167 DAG size of output: 75 [2020-10-24 01:19:19,175 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-10-24 01:19:20,479 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-10-24 01:19:21,606 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 186 DAG size of output: 67 [2020-10-24 01:19:22,584 WARN L193 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 78 [2020-10-24 01:19:23,844 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 226 DAG size of output: 77 [2020-10-24 01:19:24,989 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 171 DAG size of output: 72 [2020-10-24 01:19:25,977 WARN L193 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 78 [2020-10-24 01:19:28,748 WARN L193 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:19:31,527 WARN L193 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:19:32,498 WARN L193 SmtUtils]: Spent 964.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 80 [2020-10-24 01:19:33,520 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 188 DAG size of output: 79 [2020-10-24 01:19:34,739 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 172 DAG size of output: 76 [2020-10-24 01:19:35,762 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 180 DAG size of output: 79 [2020-10-24 01:19:36,885 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 168 DAG size of output: 72 [2020-10-24 01:19:38,059 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 170 DAG size of output: 74 [2020-10-24 01:19:39,334 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 222 DAG size of output: 77 [2020-10-24 01:19:40,342 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 178 DAG size of output: 76 [2020-10-24 01:19:41,286 WARN L193 SmtUtils]: Spent 937.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 74 [2020-10-24 01:19:42,404 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-10-24 01:19:43,518 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 168 DAG size of output: 72 [2020-10-24 01:19:44,447 WARN L193 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 76 [2020-10-24 01:19:47,228 WARN L193 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:19:48,316 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 183 DAG size of output: 83 [2020-10-24 01:19:49,820 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 184 DAG size of output: 80 [2020-10-24 01:19:51,039 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 170 DAG size of output: 75 [2020-10-24 01:19:52,038 WARN L193 SmtUtils]: Spent 992.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 78 [2020-10-24 01:19:54,841 WARN L193 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:19:55,987 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 170 DAG size of output: 72 [2020-10-24 01:19:58,780 WARN L193 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:20:00,137 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 181 DAG size of output: 78 [2020-10-24 01:20:01,059 WARN L193 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 76 [2020-10-24 01:20:02,002 WARN L193 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 77 [2020-10-24 01:20:04,802 WARN L193 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:20:05,744 WARN L193 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 77 [2020-10-24 01:20:07,706 WARN L193 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 241 DAG size of output: 81 [2020-10-24 01:20:08,836 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-10-24 01:20:09,811 WARN L193 SmtUtils]: Spent 968.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 77 [2020-10-24 01:20:11,594 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 220 DAG size of output: 82 [2020-10-24 01:20:12,671 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 179 DAG size of output: 79 [2020-10-24 01:20:15,488 WARN L193 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:20:16,649 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 170 DAG size of output: 74 [2020-10-24 01:20:19,466 WARN L193 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:20:20,409 WARN L193 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 76 [2020-10-24 01:20:21,634 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 170 DAG size of output: 75 [2020-10-24 01:20:22,761 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-10-24 01:20:24,246 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 232 DAG size of output: 79 [2020-10-24 01:20:27,300 WARN L193 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-10-24 01:20:28,612 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-10-24 01:20:29,949 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-10-24 01:20:31,008 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-10-24 01:20:34,058 WARN L193 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-10-24 01:20:35,405 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-10-24 01:20:38,468 WARN L193 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-10-24 01:20:41,277 WARN L193 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:20:42,450 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 170 DAG size of output: 74 [2020-10-24 01:20:45,262 WARN L193 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:20:46,425 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 173 DAG size of output: 73 [2020-10-24 01:20:47,583 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 170 DAG size of output: 72 [2020-10-24 01:20:50,404 WARN L193 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:20:52,514 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 231 DAG size of output: 89 [2020-10-24 01:20:53,652 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-10-24 01:20:54,603 WARN L193 SmtUtils]: Spent 944.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 74 [2020-10-24 01:20:57,435 WARN L193 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:20:58,386 WARN L193 SmtUtils]: Spent 944.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 76 [2020-10-24 01:21:01,210 WARN L193 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:21:02,543 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-10-24 01:21:05,591 WARN L193 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-10-24 01:21:08,690 WARN L193 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-10-24 01:21:10,202 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 167 DAG size of output: 76 [2020-10-24 01:21:11,322 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 170 DAG size of output: 75 [2020-10-24 01:21:12,293 WARN L193 SmtUtils]: Spent 964.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 74 [2020-10-24 01:21:15,367 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:21:16,489 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 222 DAG size of output: 74 [2020-10-24 01:21:19,524 WARN L193 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:21:20,500 WARN L193 SmtUtils]: Spent 968.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 76 [2020-10-24 01:21:21,828 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 217 DAG size of output: 75 [2020-10-24 01:21:24,835 WARN L193 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:21:26,198 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 222 DAG size of output: 77 [2020-10-24 01:21:27,428 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 177 DAG size of output: 84 [2020-10-24 01:21:28,973 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 175 DAG size of output: 76 [2020-10-24 01:21:30,000 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 175 DAG size of output: 78 [2020-10-24 01:21:33,086 WARN L193 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 268 DAG size of output: 93 [2020-10-24 01:21:36,043 WARN L193 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:21:37,309 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 172 DAG size of output: 76 [2020-10-24 01:21:38,619 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 183 DAG size of output: 79 [2020-10-24 01:21:41,766 WARN L193 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-10-24 01:21:44,607 WARN L193 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:21:46,515 WARN L193 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 221 DAG size of output: 82 [2020-10-24 01:21:48,034 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 237 DAG size of output: 82 [2020-10-24 01:21:50,965 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:21:52,201 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 172 DAG size of output: 76 [2020-10-24 01:21:53,382 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 191 DAG size of output: 88 [2020-10-24 01:21:54,990 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 226 DAG size of output: 78 [2020-10-24 01:21:56,305 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 226 DAG size of output: 77 [2020-10-24 01:21:59,280 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:22:02,118 WARN L193 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:22:03,758 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 223 DAG size of output: 81 [2020-10-24 01:22:05,603 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 174 DAG size of output: 80 [2020-10-24 01:22:08,447 WARN L193 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:22:09,474 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 178 DAG size of output: 77 [2020-10-24 01:22:12,323 WARN L193 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:22:13,190 WARN L193 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 70 [2020-10-24 01:22:14,131 WARN L193 SmtUtils]: Spent 934.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 75 [2020-10-24 01:22:15,623 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 177 DAG size of output: 78 [2020-10-24 01:22:16,508 WARN L193 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 70 [2020-10-24 01:22:17,453 WARN L193 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 76 [2020-10-24 01:22:20,319 WARN L193 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:22:21,748 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 223 DAG size of output: 80 [2020-10-24 01:22:23,125 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 227 DAG size of output: 76 [2020-10-24 01:22:24,748 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 181 DAG size of output: 80 [2020-10-24 01:22:25,991 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-10-24 01:22:26,944 WARN L193 SmtUtils]: Spent 945.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 74 [2020-10-24 01:22:29,973 WARN L193 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:22:32,971 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:22:34,514 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 175 DAG size of output: 76 [2020-10-24 01:22:35,846 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 217 DAG size of output: 75 [2020-10-24 01:22:36,892 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 220 DAG size of output: 76 [2020-10-24 01:22:40,081 WARN L193 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-10-24 01:22:41,598 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 223 DAG size of output: 80 [2020-10-24 01:22:42,979 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 183 DAG size of output: 80 [2020-10-24 01:22:43,988 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 169 DAG size of output: 74 [2020-10-24 01:22:46,987 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:22:47,147 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 39 [2020-10-24 01:22:50,111 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:22:53,105 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-10-24 01:22:54,787 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 223 DAG size of output: 79 [2020-10-24 01:22:56,826 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 241 DAG size of output: 80 [2020-10-24 01:22:58,143 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 218 DAG size of output: 75 [2020-10-24 01:22:59,302 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 186 DAG size of output: 85 [2020-10-24 01:23:00,497 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 187 DAG size of output: 88 [2020-10-24 01:23:01,763 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 176 DAG size of output: 75 [2020-10-24 01:23:03,356 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 232 DAG size of output: 79 [2020-10-24 01:23:04,847 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 228 DAG size of output: 76 [2020-10-24 01:23:06,185 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 180 DAG size of output: 78 [2020-10-24 01:23:09,171 WARN L193 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 269 DAG size of output: 88