/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/Problem11_label18.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 02:11:04,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 02:11:04,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 02:11:04,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 02:11:04,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 02:11:04,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 02:11:04,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 02:11:04,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 02:11:04,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 02:11:04,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 02:11:04,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 02:11:04,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 02:11:04,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 02:11:04,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 02:11:04,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 02:11:04,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 02:11:04,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 02:11:04,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 02:11:04,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 02:11:04,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 02:11:04,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 02:11:04,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 02:11:04,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 02:11:04,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 02:11:04,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 02:11:04,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 02:11:04,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 02:11:04,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 02:11:04,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 02:11:04,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 02:11:04,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 02:11:04,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 02:11:04,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 02:11:04,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 02:11:04,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 02:11:04,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 02:11:04,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 02:11:04,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 02:11:04,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 02:11:04,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 02:11:04,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 02:11:04,250 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 02:11:04,278 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 02:11:04,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 02:11:04,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 02:11:04,282 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 02:11:04,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 02:11:04,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 02:11:04,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 02:11:04,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 02:11:04,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 02:11:04,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 02:11:04,284 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 02:11:04,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 02:11:04,285 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 02:11:04,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 02:11:04,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 02:11:04,286 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 02:11:04,286 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 02:11:04,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 02:11:04,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 02:11:04,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 02:11:04,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 02:11:04,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 02:11:04,287 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 02:11:04,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 02:11:04,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 02:11:04,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 02:11:04,735 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 02:11:04,735 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 02:11:04,736 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label18.c [2020-10-24 02:11:04,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed5b0786c/afaf91408e17440a86b2cb715a91569a/FLAG1c9417a60 [2020-10-24 02:11:05,563 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 02:11:05,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label18.c [2020-10-24 02:11:05,580 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed5b0786c/afaf91408e17440a86b2cb715a91569a/FLAG1c9417a60 [2020-10-24 02:11:05,734 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed5b0786c/afaf91408e17440a86b2cb715a91569a [2020-10-24 02:11:05,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 02:11:05,747 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 02:11:05,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 02:11:05,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 02:11:05,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 02:11:05,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:11:05" (1/1) ... [2020-10-24 02:11:05,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@104fb775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:05, skipping insertion in model container [2020-10-24 02:11:05,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:11:05" (1/1) ... [2020-10-24 02:11:05,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 02:11:05,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 02:11:06,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:11:06,543 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 02:11:06,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:11:06,831 INFO L208 MainTranslator]: Completed translation [2020-10-24 02:11:06,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06 WrapperNode [2020-10-24 02:11:06,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 02:11:06,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 02:11:06,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 02:11:06,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 02:11:06,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (1/1) ... [2020-10-24 02:11:06,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (1/1) ... [2020-10-24 02:11:06,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (1/1) ... [2020-10-24 02:11:06,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (1/1) ... [2020-10-24 02:11:06,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (1/1) ... [2020-10-24 02:11:07,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (1/1) ... [2020-10-24 02:11:07,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (1/1) ... [2020-10-24 02:11:07,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 02:11:07,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 02:11:07,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 02:11:07,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 02:11:07,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (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 02:11:07,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 02:11:07,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 02:11:07,176 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 02:11:07,176 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-24 02:11:07,176 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 02:11:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-24 02:11:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 02:11:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 02:11:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 02:11:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 02:11:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 02:11:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-24 02:11:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 02:11:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 02:11:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 02:11:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 02:11:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 02:11:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 02:11:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 02:11:09,460 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 02:11:09,461 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-24 02:11:09,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:11:09 BoogieIcfgContainer [2020-10-24 02:11:09,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 02:11:09,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 02:11:09,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 02:11:09,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 02:11:09,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:11:05" (1/3) ... [2020-10-24 02:11:09,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@175cd7dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:11:09, skipping insertion in model container [2020-10-24 02:11:09,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:06" (2/3) ... [2020-10-24 02:11:09,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@175cd7dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:11:09, skipping insertion in model container [2020-10-24 02:11:09,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:11:09" (3/3) ... [2020-10-24 02:11:09,474 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label18.c [2020-10-24 02:11:09,486 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 02:11:09,493 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 02:11:09,506 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 02:11:09,546 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 02:11:09,546 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 02:11:09,546 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 02:11:09,546 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 02:11:09,546 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 02:11:09,546 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 02:11:09,547 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 02:11:09,547 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 02:11:09,591 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states. [2020-10-24 02:11:09,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-24 02:11:09,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:11:09,609 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] [2020-10-24 02:11:09,609 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:11:09,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:11:09,618 INFO L82 PathProgramCache]: Analyzing trace with hash 505397221, now seen corresponding path program 1 times [2020-10-24 02:11:09,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:11:09,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83963785] [2020-10-24 02:11:09,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:11:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:10,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:11:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:10,176 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 02:11:10,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83963785] [2020-10-24 02:11:10,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:11:10,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 02:11:10,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917280910] [2020-10-24 02:11:10,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 02:11:10,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:11:10,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 02:11:10,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 02:11:10,210 INFO L87 Difference]: Start difference. First operand 825 states. Second operand 4 states. [2020-10-24 02:11:10,483 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-24 02:11:15,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:11:15,183 INFO L93 Difference]: Finished difference Result 1970 states and 2566 transitions. [2020-10-24 02:11:15,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 02:11:15,187 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 64 [2020-10-24 02:11:15,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:11:15,214 INFO L225 Difference]: With dead ends: 1970 [2020-10-24 02:11:15,214 INFO L226 Difference]: Without dead ends: 1096 [2020-10-24 02:11:15,230 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 02:11:15,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2020-10-24 02:11:15,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1048. [2020-10-24 02:11:15,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1048 states. [2020-10-24 02:11:15,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1236 transitions. [2020-10-24 02:11:15,487 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1236 transitions. Word has length 64 [2020-10-24 02:11:15,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:11:15,490 INFO L481 AbstractCegarLoop]: Abstraction has 1048 states and 1236 transitions. [2020-10-24 02:11:15,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 02:11:15,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1236 transitions. [2020-10-24 02:11:15,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-24 02:11:15,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:11:15,506 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:11:15,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 02:11:15,507 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:11:15,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:11:15,508 INFO L82 PathProgramCache]: Analyzing trace with hash -742084967, now seen corresponding path program 1 times [2020-10-24 02:11:15,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:11:15,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1910576758] [2020-10-24 02:11:15,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:11:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:15,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:11:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:15,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-24 02:11:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:15,988 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:11:15,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1910576758] [2020-10-24 02:11:15,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:11:15,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-24 02:11:15,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096325437] [2020-10-24 02:11:15,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 02:11:15,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:11:15,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 02:11:15,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 02:11:15,995 INFO L87 Difference]: Start difference. First operand 1048 states and 1236 transitions. Second operand 8 states. [2020-10-24 02:11:22,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:11:22,233 INFO L93 Difference]: Finished difference Result 3264 states and 4042 transitions. [2020-10-24 02:11:22,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-24 02:11:22,234 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 146 [2020-10-24 02:11:22,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:11:22,254 INFO L225 Difference]: With dead ends: 3264 [2020-10-24 02:11:22,255 INFO L226 Difference]: Without dead ends: 2241 [2020-10-24 02:11:22,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-24 02:11:22,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2020-10-24 02:11:22,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 1849. [2020-10-24 02:11:22,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1849 states. [2020-10-24 02:11:22,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1849 states to 1849 states and 2326 transitions. [2020-10-24 02:11:22,602 INFO L78 Accepts]: Start accepts. Automaton has 1849 states and 2326 transitions. Word has length 146 [2020-10-24 02:11:22,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:11:22,603 INFO L481 AbstractCegarLoop]: Abstraction has 1849 states and 2326 transitions. [2020-10-24 02:11:22,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 02:11:22,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1849 states and 2326 transitions. [2020-10-24 02:11:22,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-24 02:11:22,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:11:22,606 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:11:22,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 02:11:22,607 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:11:22,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:11:22,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1293057356, now seen corresponding path program 1 times [2020-10-24 02:11:22,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:11:22,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1088096641] [2020-10-24 02:11:22,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:11:22,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:22,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:11:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:22,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-24 02:11:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:22,884 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:11:22,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1088096641] [2020-10-24 02:11:22,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:11:22,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-24 02:11:22,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607439433] [2020-10-24 02:11:22,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 02:11:22,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:11:22,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 02:11:22,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 02:11:22,888 INFO L87 Difference]: Start difference. First operand 1849 states and 2326 transitions. Second operand 7 states. [2020-10-24 02:11:28,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:11:28,459 INFO L93 Difference]: Finished difference Result 4812 states and 6293 transitions. [2020-10-24 02:11:28,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 02:11:28,460 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 153 [2020-10-24 02:11:28,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:11:28,485 INFO L225 Difference]: With dead ends: 4812 [2020-10-24 02:11:28,486 INFO L226 Difference]: Without dead ends: 2988 [2020-10-24 02:11:28,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-24 02:11:28,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2020-10-24 02:11:28,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 2925. [2020-10-24 02:11:28,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2925 states. [2020-10-24 02:11:28,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 3649 transitions. [2020-10-24 02:11:28,943 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 3649 transitions. Word has length 153 [2020-10-24 02:11:28,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:11:28,944 INFO L481 AbstractCegarLoop]: Abstraction has 2925 states and 3649 transitions. [2020-10-24 02:11:28,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 02:11:28,944 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 3649 transitions. [2020-10-24 02:11:28,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-10-24 02:11:28,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:11:28,950 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:11:28,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 02:11:28,950 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:11:28,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:11:28,951 INFO L82 PathProgramCache]: Analyzing trace with hash -167250543, now seen corresponding path program 1 times [2020-10-24 02:11:28,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:11:28,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1510350911] [2020-10-24 02:11:28,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:11:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:29,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:11:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:29,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-24 02:11:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:29,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-24 02:11:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:29,346 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 147 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-24 02:11:29,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1510350911] [2020-10-24 02:11:29,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:11:29,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 02:11:29,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547328792] [2020-10-24 02:11:29,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 02:11:29,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:11:29,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 02:11:29,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 02:11:29,352 INFO L87 Difference]: Start difference. First operand 2925 states and 3649 transitions. Second operand 7 states. [2020-10-24 02:11:34,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:11:34,403 INFO L93 Difference]: Finished difference Result 6120 states and 8182 transitions. [2020-10-24 02:11:34,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 02:11:34,404 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 229 [2020-10-24 02:11:34,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:11:34,446 INFO L225 Difference]: With dead ends: 6120 [2020-10-24 02:11:34,446 INFO L226 Difference]: Without dead ends: 3614 [2020-10-24 02:11:34,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 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 02:11:34,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3614 states. [2020-10-24 02:11:35,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3614 to 3300. [2020-10-24 02:11:35,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3300 states. [2020-10-24 02:11:35,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 4071 transitions. [2020-10-24 02:11:35,123 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 4071 transitions. Word has length 229 [2020-10-24 02:11:35,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:11:35,125 INFO L481 AbstractCegarLoop]: Abstraction has 3300 states and 4071 transitions. [2020-10-24 02:11:35,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 02:11:35,125 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 4071 transitions. [2020-10-24 02:11:35,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-24 02:11:35,131 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:11:35,133 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:11:35,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 02:11:35,134 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:11:35,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:11:35,134 INFO L82 PathProgramCache]: Analyzing trace with hash -571991014, now seen corresponding path program 1 times [2020-10-24 02:11:35,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:11:35,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [881600101] [2020-10-24 02:11:35,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:11:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:35,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:11:35,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:35,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-24 02:11:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:35,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-24 02:11:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:35,470 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-24 02:11:35,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [881600101] [2020-10-24 02:11:35,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:11:35,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-24 02:11:35,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084126946] [2020-10-24 02:11:35,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 02:11:35,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:11:35,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 02:11:35,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 02:11:35,473 INFO L87 Difference]: Start difference. First operand 3300 states and 4071 transitions. Second operand 5 states. [2020-10-24 02:11:40,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:11:40,218 INFO L93 Difference]: Finished difference Result 8213 states and 10417 transitions. [2020-10-24 02:11:40,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 02:11:40,219 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 237 [2020-10-24 02:11:40,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:11:40,269 INFO L225 Difference]: With dead ends: 8213 [2020-10-24 02:11:40,269 INFO L226 Difference]: Without dead ends: 5332 [2020-10-24 02:11:40,282 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 02:11:40,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5332 states. [2020-10-24 02:11:41,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5332 to 5301. [2020-10-24 02:11:41,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5301 states. [2020-10-24 02:11:41,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5301 states to 5301 states and 6619 transitions. [2020-10-24 02:11:41,140 INFO L78 Accepts]: Start accepts. Automaton has 5301 states and 6619 transitions. Word has length 237 [2020-10-24 02:11:41,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:11:41,140 INFO L481 AbstractCegarLoop]: Abstraction has 5301 states and 6619 transitions. [2020-10-24 02:11:41,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 02:11:41,141 INFO L276 IsEmpty]: Start isEmpty. Operand 5301 states and 6619 transitions. [2020-10-24 02:11:41,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-24 02:11:41,148 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:11:41,149 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:11:41,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-24 02:11:41,149 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:11:41,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:11:41,150 INFO L82 PathProgramCache]: Analyzing trace with hash -2078689973, now seen corresponding path program 1 times [2020-10-24 02:11:41,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:11:41,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302712802] [2020-10-24 02:11:41,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:11:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:41,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:11:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:41,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-24 02:11:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:41,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-24 02:11:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:41,767 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-24 02:11:41,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1302712802] [2020-10-24 02:11:41,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:11:41,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 02:11:41,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979466324] [2020-10-24 02:11:41,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 02:11:41,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:11:41,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 02:11:41,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 02:11:41,779 INFO L87 Difference]: Start difference. First operand 5301 states and 6619 transitions. Second operand 7 states. [2020-10-24 02:11:48,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:11:48,181 INFO L93 Difference]: Finished difference Result 13560 states and 18076 transitions. [2020-10-24 02:11:48,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 02:11:48,182 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 260 [2020-10-24 02:11:48,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:11:48,327 INFO L225 Difference]: With dead ends: 13560 [2020-10-24 02:11:48,327 INFO L226 Difference]: Without dead ends: 8678 [2020-10-24 02:11:48,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-24 02:11:48,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8678 states. [2020-10-24 02:11:49,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8678 to 7547. [2020-10-24 02:11:49,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7547 states. [2020-10-24 02:11:49,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7547 states to 7547 states and 9445 transitions. [2020-10-24 02:11:49,720 INFO L78 Accepts]: Start accepts. Automaton has 7547 states and 9445 transitions. Word has length 260 [2020-10-24 02:11:49,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:11:49,720 INFO L481 AbstractCegarLoop]: Abstraction has 7547 states and 9445 transitions. [2020-10-24 02:11:49,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 02:11:49,721 INFO L276 IsEmpty]: Start isEmpty. Operand 7547 states and 9445 transitions. [2020-10-24 02:11:49,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-10-24 02:11:49,735 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:11:49,735 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:11:49,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-24 02:11:49,736 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:11:49,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:11:49,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1831944684, now seen corresponding path program 1 times [2020-10-24 02:11:49,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:11:49,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727733628] [2020-10-24 02:11:49,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:11:49,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:49,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:11:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:49,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-24 02:11:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:49,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-24 02:11:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:50,124 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-10-24 02:11:50,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727733628] [2020-10-24 02:11:50,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:11:50,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-24 02:11:50,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200634824] [2020-10-24 02:11:50,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 02:11:50,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:11:50,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 02:11:50,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 02:11:50,129 INFO L87 Difference]: Start difference. First operand 7547 states and 9445 transitions. Second operand 5 states. [2020-10-24 02:11:54,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:11:54,139 INFO L93 Difference]: Finished difference Result 8954 states and 11241 transitions. [2020-10-24 02:11:54,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 02:11:54,141 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 310 [2020-10-24 02:11:54,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:11:54,180 INFO L225 Difference]: With dead ends: 8954 [2020-10-24 02:11:54,180 INFO L226 Difference]: Without dead ends: 8951 [2020-10-24 02:11:54,185 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 02:11:54,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8951 states. [2020-10-24 02:11:55,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8951 to 8931. [2020-10-24 02:11:55,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8931 states. [2020-10-24 02:11:55,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 11218 transitions. [2020-10-24 02:11:55,497 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 11218 transitions. Word has length 310 [2020-10-24 02:11:55,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:11:55,498 INFO L481 AbstractCegarLoop]: Abstraction has 8931 states and 11218 transitions. [2020-10-24 02:11:55,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 02:11:55,498 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 11218 transitions. [2020-10-24 02:11:55,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2020-10-24 02:11:55,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:11:55,518 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:11:55,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-24 02:11:55,518 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:11:55,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:11:55,519 INFO L82 PathProgramCache]: Analyzing trace with hash 391675070, now seen corresponding path program 1 times [2020-10-24 02:11:55,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:11:55,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [984248057] [2020-10-24 02:11:55,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:11:55,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:55,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:11:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:55,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-24 02:11:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:55,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-24 02:11:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:11:56,068 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 182 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-24 02:11:56,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [984248057] [2020-10-24 02:11:56,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:11:56,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 02:11:56,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960734160] [2020-10-24 02:11:56,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 02:11:56,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:11:56,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 02:11:56,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 02:11:56,073 INFO L87 Difference]: Start difference. First operand 8931 states and 11218 transitions. Second operand 7 states. [2020-10-24 02:12:02,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:12:02,707 INFO L93 Difference]: Finished difference Result 19321 states and 24438 transitions. [2020-10-24 02:12:02,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 02:12:02,708 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 321 [2020-10-24 02:12:02,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:12:02,777 INFO L225 Difference]: With dead ends: 19321 [2020-10-24 02:12:02,777 INFO L226 Difference]: Without dead ends: 10816 [2020-10-24 02:12:02,816 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-24 02:12:02,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10816 states. [2020-10-24 02:12:04,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10816 to 10394. [2020-10-24 02:12:04,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10394 states. [2020-10-24 02:12:04,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10394 states to 10394 states and 12846 transitions. [2020-10-24 02:12:04,483 INFO L78 Accepts]: Start accepts. Automaton has 10394 states and 12846 transitions. Word has length 321 [2020-10-24 02:12:04,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:12:04,484 INFO L481 AbstractCegarLoop]: Abstraction has 10394 states and 12846 transitions. [2020-10-24 02:12:04,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 02:12:04,484 INFO L276 IsEmpty]: Start isEmpty. Operand 10394 states and 12846 transitions. [2020-10-24 02:12:04,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-10-24 02:12:04,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:12:04,497 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:12:04,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-24 02:12:04,497 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:12:04,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:12:04,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1322996460, now seen corresponding path program 1 times [2020-10-24 02:12:04,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:12:04,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1123070159] [2020-10-24 02:12:04,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:12:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:04,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:12:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:04,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-24 02:12:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:04,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-24 02:12:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:05,092 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-10-24 02:12:05,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1123070159] [2020-10-24 02:12:05,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:12:05,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-24 02:12:05,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238977910] [2020-10-24 02:12:05,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 02:12:05,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:12:05,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 02:12:05,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 02:12:05,095 INFO L87 Difference]: Start difference. First operand 10394 states and 12846 transitions. Second operand 5 states. [2020-10-24 02:12:09,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:12:09,579 INFO L93 Difference]: Finished difference Result 18954 states and 23440 transitions. [2020-10-24 02:12:09,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 02:12:09,580 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 322 [2020-10-24 02:12:09,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:12:09,637 INFO L225 Difference]: With dead ends: 18954 [2020-10-24 02:12:09,637 INFO L226 Difference]: Without dead ends: 10398 [2020-10-24 02:12:09,664 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 02:12:09,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10398 states. [2020-10-24 02:12:11,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10398 to 10392. [2020-10-24 02:12:11,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10392 states. [2020-10-24 02:12:11,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10392 states to 10392 states and 12761 transitions. [2020-10-24 02:12:11,074 INFO L78 Accepts]: Start accepts. Automaton has 10392 states and 12761 transitions. Word has length 322 [2020-10-24 02:12:11,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:12:11,075 INFO L481 AbstractCegarLoop]: Abstraction has 10392 states and 12761 transitions. [2020-10-24 02:12:11,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 02:12:11,075 INFO L276 IsEmpty]: Start isEmpty. Operand 10392 states and 12761 transitions. [2020-10-24 02:12:11,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2020-10-24 02:12:11,096 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:12:11,097 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:12:11,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-24 02:12:11,097 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:12:11,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:12:11,098 INFO L82 PathProgramCache]: Analyzing trace with hash -2050756235, now seen corresponding path program 1 times [2020-10-24 02:12:11,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:12:11,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526890913] [2020-10-24 02:12:11,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:12:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:11,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:12:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:11,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-24 02:12:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:11,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-24 02:12:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:11,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2020-10-24 02:12:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:11,766 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 334 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-24 02:12:11,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1526890913] [2020-10-24 02:12:11,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:12:11,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 02:12:11,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159816204] [2020-10-24 02:12:11,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 02:12:11,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:12:11,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 02:12:11,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 02:12:11,769 INFO L87 Difference]: Start difference. First operand 10392 states and 12761 transitions. Second operand 7 states. [2020-10-24 02:12:18,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:12:18,810 INFO L93 Difference]: Finished difference Result 21062 states and 25818 transitions. [2020-10-24 02:12:18,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 02:12:18,811 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 438 [2020-10-24 02:12:18,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:12:18,870 INFO L225 Difference]: With dead ends: 21062 [2020-10-24 02:12:18,871 INFO L226 Difference]: Without dead ends: 10890 [2020-10-24 02:12:18,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-24 02:12:18,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10890 states. [2020-10-24 02:12:20,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10890 to 10688. [2020-10-24 02:12:20,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10688 states. [2020-10-24 02:12:20,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10688 states to 10688 states and 12698 transitions. [2020-10-24 02:12:20,362 INFO L78 Accepts]: Start accepts. Automaton has 10688 states and 12698 transitions. Word has length 438 [2020-10-24 02:12:20,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:12:20,362 INFO L481 AbstractCegarLoop]: Abstraction has 10688 states and 12698 transitions. [2020-10-24 02:12:20,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 02:12:20,363 INFO L276 IsEmpty]: Start isEmpty. Operand 10688 states and 12698 transitions. [2020-10-24 02:12:20,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2020-10-24 02:12:20,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:12:20,388 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:12:20,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-24 02:12:20,389 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:12:20,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:12:20,389 INFO L82 PathProgramCache]: Analyzing trace with hash 549065546, now seen corresponding path program 1 times [2020-10-24 02:12:20,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:12:20,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [583204132] [2020-10-24 02:12:20,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:12:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:20,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:12:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:20,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-24 02:12:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:20,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-24 02:12:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:20,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2020-10-24 02:12:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:21,088 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2020-10-24 02:12:21,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [583204132] [2020-10-24 02:12:21,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:12:21,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-24 02:12:21,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967124354] [2020-10-24 02:12:21,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 02:12:21,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:12:21,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 02:12:21,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 02:12:21,092 INFO L87 Difference]: Start difference. First operand 10688 states and 12698 transitions. Second operand 5 states. [2020-10-24 02:12:26,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:12:26,157 INFO L93 Difference]: Finished difference Result 20518 states and 24429 transitions. [2020-10-24 02:12:26,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 02:12:26,157 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 467 [2020-10-24 02:12:26,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:12:26,202 INFO L225 Difference]: With dead ends: 20518 [2020-10-24 02:12:26,203 INFO L226 Difference]: Without dead ends: 11212 [2020-10-24 02:12:26,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 02:12:26,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11212 states. [2020-10-24 02:12:27,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11212 to 11206. [2020-10-24 02:12:27,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11206 states. [2020-10-24 02:12:27,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11206 states to 11206 states and 13087 transitions. [2020-10-24 02:12:27,824 INFO L78 Accepts]: Start accepts. Automaton has 11206 states and 13087 transitions. Word has length 467 [2020-10-24 02:12:27,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:12:27,824 INFO L481 AbstractCegarLoop]: Abstraction has 11206 states and 13087 transitions. [2020-10-24 02:12:27,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 02:12:27,824 INFO L276 IsEmpty]: Start isEmpty. Operand 11206 states and 13087 transitions. [2020-10-24 02:12:27,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2020-10-24 02:12:27,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:12:27,847 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:12:27,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-24 02:12:27,847 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:12:27,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:12:27,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1335139560, now seen corresponding path program 1 times [2020-10-24 02:12:27,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:12:27,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1743116053] [2020-10-24 02:12:27,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:12:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:28,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:12:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:28,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-24 02:12:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:28,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-24 02:12:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:28,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2020-10-24 02:12:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:28,411 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 118 proven. 3 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2020-10-24 02:12:28,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1743116053] [2020-10-24 02:12:28,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:12:28,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-24 02:12:28,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53880702] [2020-10-24 02:12:28,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 02:12:28,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:12:28,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 02:12:28,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 02:12:28,414 INFO L87 Difference]: Start difference. First operand 11206 states and 13087 transitions. Second operand 5 states. [2020-10-24 02:12:34,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:12:34,088 INFO L93 Difference]: Finished difference Result 21652 states and 25352 transitions. [2020-10-24 02:12:34,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 02:12:34,089 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 511 [2020-10-24 02:12:34,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:12:34,130 INFO L225 Difference]: With dead ends: 21652 [2020-10-24 02:12:34,130 INFO L226 Difference]: Without dead ends: 12279 [2020-10-24 02:12:34,147 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 02:12:34,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12279 states. [2020-10-24 02:12:35,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12279 to 12219. [2020-10-24 02:12:35,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12219 states. [2020-10-24 02:12:35,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12219 states to 12219 states and 14312 transitions. [2020-10-24 02:12:35,776 INFO L78 Accepts]: Start accepts. Automaton has 12219 states and 14312 transitions. Word has length 511 [2020-10-24 02:12:35,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:12:35,777 INFO L481 AbstractCegarLoop]: Abstraction has 12219 states and 14312 transitions. [2020-10-24 02:12:35,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 02:12:35,777 INFO L276 IsEmpty]: Start isEmpty. Operand 12219 states and 14312 transitions. [2020-10-24 02:12:35,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2020-10-24 02:12:35,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:12:35,797 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:12:35,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-24 02:12:35,797 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:12:35,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:12:35,798 INFO L82 PathProgramCache]: Analyzing trace with hash 328073760, now seen corresponding path program 1 times [2020-10-24 02:12:35,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:12:35,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795022469] [2020-10-24 02:12:35,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:12:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:35,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:12:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:36,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-24 02:12:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:36,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-24 02:12:36,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:36,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2020-10-24 02:12:36,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:36,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2020-10-24 02:12:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:36,435 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 381 proven. 99 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2020-10-24 02:12:36,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [795022469] [2020-10-24 02:12:36,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:12:36,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 02:12:36,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546179899] [2020-10-24 02:12:36,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 02:12:36,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:12:36,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 02:12:36,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 02:12:36,439 INFO L87 Difference]: Start difference. First operand 12219 states and 14312 transitions. Second operand 7 states. [2020-10-24 02:12:43,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:12:43,454 INFO L93 Difference]: Finished difference Result 25018 states and 30389 transitions. [2020-10-24 02:12:43,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 02:12:43,455 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 543 [2020-10-24 02:12:43,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:12:43,525 INFO L225 Difference]: With dead ends: 25018 [2020-10-24 02:12:43,525 INFO L226 Difference]: Without dead ends: 14632 [2020-10-24 02:12:43,550 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-24 02:12:43,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14632 states. [2020-10-24 02:12:45,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14632 to 12647. [2020-10-24 02:12:45,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12647 states. [2020-10-24 02:12:45,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12647 states to 12647 states and 14859 transitions. [2020-10-24 02:12:45,460 INFO L78 Accepts]: Start accepts. Automaton has 12647 states and 14859 transitions. Word has length 543 [2020-10-24 02:12:45,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:12:45,461 INFO L481 AbstractCegarLoop]: Abstraction has 12647 states and 14859 transitions. [2020-10-24 02:12:45,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 02:12:45,461 INFO L276 IsEmpty]: Start isEmpty. Operand 12647 states and 14859 transitions. [2020-10-24 02:12:45,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2020-10-24 02:12:45,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:12:45,485 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 3, 3, 3, 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] [2020-10-24 02:12:45,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-24 02:12:45,486 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:12:45,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:12:45,486 INFO L82 PathProgramCache]: Analyzing trace with hash 55291470, now seen corresponding path program 1 times [2020-10-24 02:12:45,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:12:45,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [643612996] [2020-10-24 02:12:45,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:12:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:45,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:12:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:45,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-24 02:12:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:45,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-24 02:12:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:45,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2020-10-24 02:12:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:45,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-24 02:12:45,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:46,073 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 381 proven. 99 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2020-10-24 02:12:46,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [643612996] [2020-10-24 02:12:46,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:12:46,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 02:12:46,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137306291] [2020-10-24 02:12:46,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 02:12:46,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:12:46,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 02:12:46,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 02:12:46,076 INFO L87 Difference]: Start difference. First operand 12647 states and 14859 transitions. Second operand 7 states. [2020-10-24 02:12:53,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:12:53,693 INFO L93 Difference]: Finished difference Result 26153 states and 30881 transitions. [2020-10-24 02:12:53,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 02:12:53,694 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 558 [2020-10-24 02:12:53,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:12:53,743 INFO L225 Difference]: With dead ends: 26153 [2020-10-24 02:12:53,743 INFO L226 Difference]: Without dead ends: 14817 [2020-10-24 02:12:53,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-24 02:12:53,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14817 states. [2020-10-24 02:12:55,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14817 to 13440. [2020-10-24 02:12:55,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13440 states. [2020-10-24 02:12:55,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13440 states to 13440 states and 15784 transitions. [2020-10-24 02:12:55,586 INFO L78 Accepts]: Start accepts. Automaton has 13440 states and 15784 transitions. Word has length 558 [2020-10-24 02:12:55,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:12:55,587 INFO L481 AbstractCegarLoop]: Abstraction has 13440 states and 15784 transitions. [2020-10-24 02:12:55,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 02:12:55,587 INFO L276 IsEmpty]: Start isEmpty. Operand 13440 states and 15784 transitions. [2020-10-24 02:12:55,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2020-10-24 02:12:55,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:12:55,612 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:12:55,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-24 02:12:55,612 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:12:55,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:12:55,613 INFO L82 PathProgramCache]: Analyzing trace with hash 170541429, now seen corresponding path program 1 times [2020-10-24 02:12:55,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:12:55,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702530414] [2020-10-24 02:12:55,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:12:55,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:55,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:12:55,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:55,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-24 02:12:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:55,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-24 02:12:55,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:56,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-24 02:12:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:56,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2020-10-24 02:12:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:12:56,329 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 178 proven. 392 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-10-24 02:12:56,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702530414] [2020-10-24 02:12:56,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:12:56,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-24 02:12:56,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908858669] [2020-10-24 02:12:56,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 02:12:56,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:12:56,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 02:12:56,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-24 02:12:56,331 INFO L87 Difference]: Start difference. First operand 13440 states and 15784 transitions. Second operand 9 states. [2020-10-24 02:13:07,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:13:07,107 INFO L93 Difference]: Finished difference Result 30500 states and 36112 transitions. [2020-10-24 02:13:07,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-24 02:13:07,108 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 576 [2020-10-24 02:13:07,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:13:07,165 INFO L225 Difference]: With dead ends: 30500 [2020-10-24 02:13:07,166 INFO L226 Difference]: Without dead ends: 19283 [2020-10-24 02:13:07,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2020-10-24 02:13:07,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19283 states. [2020-10-24 02:13:09,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19283 to 18795. [2020-10-24 02:13:09,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18795 states. [2020-10-24 02:13:09,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18795 states to 18795 states and 22073 transitions. [2020-10-24 02:13:09,989 INFO L78 Accepts]: Start accepts. Automaton has 18795 states and 22073 transitions. Word has length 576 [2020-10-24 02:13:09,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:13:09,989 INFO L481 AbstractCegarLoop]: Abstraction has 18795 states and 22073 transitions. [2020-10-24 02:13:09,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 02:13:09,990 INFO L276 IsEmpty]: Start isEmpty. Operand 18795 states and 22073 transitions. [2020-10-24 02:13:10,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2020-10-24 02:13:10,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:13:10,028 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:10,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-24 02:13:10,029 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:13:10,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:13:10,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1689616405, now seen corresponding path program 1 times [2020-10-24 02:13:10,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:13:10,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1888257271] [2020-10-24 02:13:10,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:13:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:10,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:13:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:10,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-24 02:13:10,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:10,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-24 02:13:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:10,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2020-10-24 02:13:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:10,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2020-10-24 02:13:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:10,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2020-10-24 02:13:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:10,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 248 proven. 558 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2020-10-24 02:13:10,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1888257271] [2020-10-24 02:13:10,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:13:10,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-24 02:13:10,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689255516] [2020-10-24 02:13:10,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 02:13:10,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:13:10,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 02:13:10,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-24 02:13:10,990 INFO L87 Difference]: Start difference. First operand 18795 states and 22073 transitions. Second operand 9 states. [2020-10-24 02:13:22,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:13:22,559 INFO L93 Difference]: Finished difference Result 42061 states and 49932 transitions. [2020-10-24 02:13:22,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-24 02:13:22,565 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 667 [2020-10-24 02:13:22,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:13:22,643 INFO L225 Difference]: With dead ends: 42061 [2020-10-24 02:13:22,644 INFO L226 Difference]: Without dead ends: 24308 [2020-10-24 02:13:22,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2020-10-24 02:13:22,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24308 states. [2020-10-24 02:13:25,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24308 to 21770. [2020-10-24 02:13:25,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21770 states. [2020-10-24 02:13:25,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21770 states to 21770 states and 25478 transitions. [2020-10-24 02:13:25,919 INFO L78 Accepts]: Start accepts. Automaton has 21770 states and 25478 transitions. Word has length 667 [2020-10-24 02:13:25,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:13:25,920 INFO L481 AbstractCegarLoop]: Abstraction has 21770 states and 25478 transitions. [2020-10-24 02:13:25,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 02:13:25,920 INFO L276 IsEmpty]: Start isEmpty. Operand 21770 states and 25478 transitions. [2020-10-24 02:13:25,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2020-10-24 02:13:25,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:13:25,952 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:25,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-24 02:13:25,952 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:13:25,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:13:25,953 INFO L82 PathProgramCache]: Analyzing trace with hash 2055424256, now seen corresponding path program 1 times [2020-10-24 02:13:25,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:13:25,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806350010] [2020-10-24 02:13:25,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:13:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:26,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:13:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:26,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-24 02:13:26,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:26,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-24 02:13:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:26,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-24 02:13:26,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:26,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2020-10-24 02:13:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:26,824 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 173 proven. 8 refuted. 0 times theorem prover too weak. 749 trivial. 0 not checked. [2020-10-24 02:13:26,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806350010] [2020-10-24 02:13:26,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:13:26,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-24 02:13:26,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810090184] [2020-10-24 02:13:26,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 02:13:26,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:13:26,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 02:13:26,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 02:13:26,827 INFO L87 Difference]: Start difference. First operand 21770 states and 25478 transitions. Second operand 5 states. [2020-10-24 02:13:32,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:13:32,185 INFO L93 Difference]: Finished difference Result 38895 states and 45502 transitions. [2020-10-24 02:13:32,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 02:13:32,186 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 688 [2020-10-24 02:13:32,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:13:32,253 INFO L225 Difference]: With dead ends: 38895 [2020-10-24 02:13:32,254 INFO L226 Difference]: Without dead ends: 19457 [2020-10-24 02:13:32,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 02:13:32,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19457 states. [2020-10-24 02:13:35,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19457 to 19425. [2020-10-24 02:13:35,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19425 states. [2020-10-24 02:13:35,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19425 states to 19425 states and 22630 transitions. [2020-10-24 02:13:35,431 INFO L78 Accepts]: Start accepts. Automaton has 19425 states and 22630 transitions. Word has length 688 [2020-10-24 02:13:35,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:13:35,432 INFO L481 AbstractCegarLoop]: Abstraction has 19425 states and 22630 transitions. [2020-10-24 02:13:35,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 02:13:35,432 INFO L276 IsEmpty]: Start isEmpty. Operand 19425 states and 22630 transitions. [2020-10-24 02:13:35,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2020-10-24 02:13:35,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:13:35,470 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:13:35,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-24 02:13:35,470 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:13:35,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:13:35,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1542466900, now seen corresponding path program 1 times [2020-10-24 02:13:35,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:13:35,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [939096385] [2020-10-24 02:13:35,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:13:35,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:35,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:13:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:35,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-24 02:13:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:35,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-24 02:13:35,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:35,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-10-24 02:13:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:36,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2020-10-24 02:13:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:36,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 560 [2020-10-24 02:13:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:36,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 341 proven. 321 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked. [2020-10-24 02:13:36,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [939096385] [2020-10-24 02:13:36,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:13:36,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 02:13:36,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321669443] [2020-10-24 02:13:36,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 02:13:36,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:13:36,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 02:13:36,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 02:13:36,518 INFO L87 Difference]: Start difference. First operand 19425 states and 22630 transitions. Second operand 7 states. [2020-10-24 02:13:46,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:13:46,964 INFO L93 Difference]: Finished difference Result 43010 states and 50558 transitions. [2020-10-24 02:13:46,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 02:13:46,964 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 709 [2020-10-24 02:13:46,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:13:47,035 INFO L225 Difference]: With dead ends: 43010 [2020-10-24 02:13:47,036 INFO L226 Difference]: Without dead ends: 24004 [2020-10-24 02:13:47,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 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 02:13:47,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24004 states. [2020-10-24 02:13:50,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24004 to 21929. [2020-10-24 02:13:50,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21929 states. [2020-10-24 02:13:50,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21929 states to 21929 states and 25749 transitions. [2020-10-24 02:13:50,527 INFO L78 Accepts]: Start accepts. Automaton has 21929 states and 25749 transitions. Word has length 709 [2020-10-24 02:13:50,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:13:50,527 INFO L481 AbstractCegarLoop]: Abstraction has 21929 states and 25749 transitions. [2020-10-24 02:13:50,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 02:13:50,527 INFO L276 IsEmpty]: Start isEmpty. Operand 21929 states and 25749 transitions. [2020-10-24 02:13:50,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2020-10-24 02:13:50,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:13:50,559 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:13:50,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-24 02:13:50,559 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:13:50,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:13:50,559 INFO L82 PathProgramCache]: Analyzing trace with hash -381775526, now seen corresponding path program 1 times [2020-10-24 02:13:50,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:13:50,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705150359] [2020-10-24 02:13:50,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:13:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:50,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:13:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:50,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-24 02:13:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:50,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-24 02:13:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:50,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-10-24 02:13:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:50,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2020-10-24 02:13:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:51,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2020-10-24 02:13:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:51,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-24 02:13:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:13:51,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1698 backedges. 344 proven. 306 refuted. 0 times theorem prover too weak. 1048 trivial. 0 not checked. [2020-10-24 02:13:51,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705150359] [2020-10-24 02:13:51,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:13:51,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 02:13:51,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430443094] [2020-10-24 02:13:51,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 02:13:51,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:13:51,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 02:13:51,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 02:13:51,429 INFO L87 Difference]: Start difference. First operand 21929 states and 25749 transitions. Second operand 7 states. [2020-10-24 02:14:02,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:14:02,233 INFO L93 Difference]: Finished difference Result 52283 states and 61795 transitions. [2020-10-24 02:14:02,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 02:14:02,234 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 765 [2020-10-24 02:14:02,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:14:02,334 INFO L225 Difference]: With dead ends: 52283 [2020-10-24 02:14:02,334 INFO L226 Difference]: Without dead ends: 30773 [2020-10-24 02:14:02,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 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 02:14:02,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30773 states. [2020-10-24 02:14:07,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30773 to 30285. [2020-10-24 02:14:07,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30285 states. [2020-10-24 02:14:07,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30285 states to 30285 states and 35290 transitions. [2020-10-24 02:14:07,154 INFO L78 Accepts]: Start accepts. Automaton has 30285 states and 35290 transitions. Word has length 765 [2020-10-24 02:14:07,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:14:07,154 INFO L481 AbstractCegarLoop]: Abstraction has 30285 states and 35290 transitions. [2020-10-24 02:14:07,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 02:14:07,154 INFO L276 IsEmpty]: Start isEmpty. Operand 30285 states and 35290 transitions. [2020-10-24 02:14:07,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2020-10-24 02:14:07,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:14:07,198 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2020-10-24 02:14:07,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-24 02:14:07,199 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:14:07,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:14:07,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1919735180, now seen corresponding path program 1 times [2020-10-24 02:14:07,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:14:07,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1607319633] [2020-10-24 02:14:07,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:14:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:14:07,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:14:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:14:07,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-24 02:14:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:14:07,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-24 02:14:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:14:07,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-10-24 02:14:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:14:07,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2020-10-24 02:14:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:14:07,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2020-10-24 02:14:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:14:07,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 643 [2020-10-24 02:14:07,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:14:08,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1802 backedges. 467 proven. 251 refuted. 0 times theorem prover too weak. 1084 trivial. 0 not checked. [2020-10-24 02:14:08,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1607319633] [2020-10-24 02:14:08,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:14:08,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-24 02:14:08,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507056509] [2020-10-24 02:14:08,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 02:14:08,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:14:08,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 02:14:08,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 02:14:08,371 INFO L87 Difference]: Start difference. First operand 30285 states and 35290 transitions. Second operand 8 states. [2020-10-24 02:14:22,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:14:22,721 INFO L93 Difference]: Finished difference Result 67098 states and 78423 transitions. [2020-10-24 02:14:22,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-24 02:14:22,722 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 792 [2020-10-24 02:14:22,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:14:22,885 INFO L225 Difference]: With dead ends: 67098 [2020-10-24 02:14:22,885 INFO L226 Difference]: Without dead ends: 37253 [2020-10-24 02:14:22,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-24 02:14:22,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37253 states. [2020-10-24 02:14:28,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37253 to 35617. [2020-10-24 02:14:28,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35617 states. [2020-10-24 02:14:28,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35617 states to 35617 states and 40744 transitions. [2020-10-24 02:14:28,692 INFO L78 Accepts]: Start accepts. Automaton has 35617 states and 40744 transitions. Word has length 792 [2020-10-24 02:14:28,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:14:28,692 INFO L481 AbstractCegarLoop]: Abstraction has 35617 states and 40744 transitions. [2020-10-24 02:14:28,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 02:14:28,693 INFO L276 IsEmpty]: Start isEmpty. Operand 35617 states and 40744 transitions. [2020-10-24 02:14:28,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 801 [2020-10-24 02:14:28,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:14:28,740 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:28,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-24 02:14:28,740 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:14:28,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:14:28,741 INFO L82 PathProgramCache]: Analyzing trace with hash 439138316, now seen corresponding path program 1 times [2020-10-24 02:14:28,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:14:28,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1917592086] [2020-10-24 02:14:28,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:14:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:14:29,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:14:29,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:14:29,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-24 02:14:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:14:29,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-24 02:14:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:14:29,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2020-10-24 02:14:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:14:29,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2020-10-24 02:14:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:14:29,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2020-10-24 02:14:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:14:29,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 651 [2020-10-24 02:14:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:14:29,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 241 proven. 6 refuted. 0 times theorem prover too weak. 1582 trivial. 0 not checked. [2020-10-24 02:14:29,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1917592086] [2020-10-24 02:14:29,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:14:29,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-24 02:14:29,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577137069] [2020-10-24 02:14:29,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 02:14:29,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:14:29,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 02:14:29,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-24 02:14:29,790 INFO L87 Difference]: Start difference. First operand 35617 states and 40744 transitions. Second operand 6 states. [2020-10-24 02:14:43,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:14:43,171 INFO L93 Difference]: Finished difference Result 80527 states and 92322 transitions. [2020-10-24 02:14:43,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-24 02:14:43,172 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 800 [2020-10-24 02:14:43,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:14:43,229 INFO L225 Difference]: With dead ends: 80527 [2020-10-24 02:14:43,229 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 02:14:43,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-24 02:14:43,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 02:14:43,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 02:14:43,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 02:14:43,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 02:14:43,348 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 800 [2020-10-24 02:14:43,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:14:43,348 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 02:14:43,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 02:14:43,348 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 02:14:43,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 02:14:43,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-24 02:14:43,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 02:14:46,094 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2020-10-24 02:14:46,381 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 125 [2020-10-24 02:14:46,649 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:14:46,949 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:14:47,251 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:14:49,304 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:14:49,426 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:14:49,601 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:15:08,490 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:15:08,610 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:15:08,771 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:15:13,050 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:15:13,172 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:15:13,336 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:15:15,486 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:15:15,610 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:15:15,773 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:15:18,845 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 749 DAG size of output: 438 [2020-10-24 02:15:23,766 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:15:23,885 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:15:24,050 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:15:25,611 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:15:25,730 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:15:25,895 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:15:33,804 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:15:33,923 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:15:34,089 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:15:37,549 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:15:37,669 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:15:37,832 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:15:41,285 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:15:41,408 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:15:41,571 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:15:44,852 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:15:44,979 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:15:45,143 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:15:47,239 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:15:47,358 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:15:47,523 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:15:53,480 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:15:53,601 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:15:53,766 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:15:55,310 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:15:55,433 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:15:55,598 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:15:57,192 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:15:57,312 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:15:57,484 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:15:59,974 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 749 DAG size of output: 438 [2020-10-24 02:16:03,150 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 749 DAG size of output: 438 [2020-10-24 02:16:06,563 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 749 DAG size of output: 438 [2020-10-24 02:16:07,433 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:16:07,553 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:16:07,715 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:16:09,298 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:16:09,417 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:16:09,580 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:16:13,668 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:16:13,788 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:16:13,949 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:16:27,970 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:16:28,092 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:16:28,254 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:16:29,860 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:16:29,983 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:16:30,151 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:16:31,689 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:16:31,807 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:16:31,972 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:16:33,326 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:33,521 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-10-24 02:16:33,628 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-10-24 02:16:34,275 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-10-24 02:16:34,574 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-10-24 02:16:34,702 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:34,907 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-10-24 02:16:35,011 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:35,317 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:36,153 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-10-24 02:16:36,981 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:37,086 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:37,266 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:37,373 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:37,480 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:37,678 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:37,784 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:38,065 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:38,748 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-10-24 02:16:39,022 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-10-24 02:16:39,468 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-10-24 02:16:39,811 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:40,622 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:41,175 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:41,375 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-10-24 02:16:41,670 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-10-24 02:16:42,212 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-10-24 02:16:42,376 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-10-24 02:16:42,828 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-10-24 02:16:43,183 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:43,470 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:43,577 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:43,681 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:43,938 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-10-24 02:16:44,315 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:44,421 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:44,695 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-10-24 02:16:44,800 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:44,910 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:45,187 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 02:16:45,746 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-10-24 02:16:52,194 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:16:52,316 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:16:52,478 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:16:54,583 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:16:54,704 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:16:54,873 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:16:59,428 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:16:59,549 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:16:59,714 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:17:01,257 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:17:01,377 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:17:01,543 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:17:05,049 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:17:05,169 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:17:05,335 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:17:09,162 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:17:09,279 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:17:09,443 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:17:16,860 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 749 DAG size of output: 438 [2020-10-24 02:17:22,029 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:17:22,148 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:17:22,311 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:17:23,888 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:17:24,011 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:17:24,174 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:17:29,263 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:17:29,384 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:17:29,550 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:17:31,111 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:17:31,233 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:17:31,395 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:17:33,599 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:17:33,718 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:17:33,879 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:17:35,494 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:17:35,614 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:17:35,777 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:17:50,011 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:17:50,129 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:17:50,295 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:17:55,799 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:17:55,917 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:17:56,084 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:18:00,799 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:18:00,929 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:18:01,094 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:18:05,146 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:18:05,266 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:18:05,428 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:18:08,956 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:18:09,078 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:18:09,243 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:18:42,693 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:18:42,816 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:18:42,981 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:18:45,140 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:18:45,262 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:18:45,430 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:18:48,947 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:18:49,070 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:18:49,237 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:18:51,970 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:18:52,094 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:18:52,257 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:18:53,824 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:18:53,947 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:18:54,116 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:18:56,262 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:18:56,381 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:18:56,548 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:19:06,843 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:19:06,964 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:19:07,127 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:19:08,745 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:19:08,866 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:19:09,032 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:19:13,715 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:19:13,835 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:19:14,001 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:19:16,584 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 749 DAG size of output: 438 [2020-10-24 02:19:18,426 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 749 DAG size of output: 438 [2020-10-24 02:19:20,842 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 749 DAG size of output: 438 [2020-10-24 02:19:22,721 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 749 DAG size of output: 438 [2020-10-24 02:19:24,673 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:19:24,794 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:19:24,963 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:19:58,927 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:19:59,056 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:19:59,223 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:20:02,074 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:20:02,200 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:20:02,367 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:20:03,956 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:20:04,081 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:20:04,253 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:20:09,785 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:20:09,907 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:20:10,074 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:20:12,854 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:20:12,976 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:20:13,143 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:20:14,718 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:20:14,850 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:20:15,020 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:20:17,686 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:20:17,849 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:20:18,021 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:20:21,304 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:20:21,426 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:20:21,591 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:20:26,209 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:20:26,330 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:20:26,496 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:20:38,683 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:20:38,805 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:20:38,976 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:20:41,164 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:20:41,286 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:20:41,454 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:20:43,024 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:20:43,147 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:20:43,319 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:20:45,626 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:20:45,751 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:20:45,924 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:20:47,515 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:20:47,639 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:20:47,807 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:20:49,397 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:20:49,519 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:20:49,684 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:20:53,057 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 150 [2020-10-24 02:20:53,550 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 157 [2020-10-24 02:20:53,789 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 149 [2020-10-24 02:20:54,447 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 157 [2020-10-24 02:20:58,609 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 150 [2020-10-24 02:21:00,211 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 183 [2020-10-24 02:21:03,680 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:21:03,803 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:21:03,971 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:21:17,193 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:21:17,314 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:21:17,479 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:21:21,064 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:21:21,185 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:21:21,366 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:21:24,871 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:21:24,996 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:21:25,164 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:21:32,360 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 749 DAG size of output: 438 [2020-10-24 02:21:38,326 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:21:38,446 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:21:38,617 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:21:44,242 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:21:44,366 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:21:44,529 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:21:48,888 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:21:49,011 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:21:49,181 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:21:50,862 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:21:50,986 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:21:51,151 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:21:56,710 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:21:56,895 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:21:57,058 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:22:00,655 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:22:00,775 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:22:00,939 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:22:07,725 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:22:07,847 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:22:08,016 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:22:12,329 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:22:12,450 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:22:12,628 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:22:16,261 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:22:16,384 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:22:16,555 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:22:19,475 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:22:19,598 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:22:19,839 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:22:21,438 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:22:21,558 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:22:21,722 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:22:28,276 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:22:28,398 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:22:28,565 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:22:38,933 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 125 [2020-10-24 02:22:39,084 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:22:39,209 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:22:39,378 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:22:46,351 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:22:46,476 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:22:46,646 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:22:54,150 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:22:54,277 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:22:54,448 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:22:58,540 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:22:58,671 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:22:58,843 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:23:00,466 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:23:00,588 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:23:00,758 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:23:02,353 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:23:02,479 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:23:02,645 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:23:09,292 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:23:09,412 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:23:09,582 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:23:18,622 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:23:18,759 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:23:18,923 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:23:20,558 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:23:20,684 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:23:20,851 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:23:24,404 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:23:24,525 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:23:24,698 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:23:29,227 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:23:29,359 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:23:29,534 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:23:31,812 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:23:31,933 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:23:32,102 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:23:36,702 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:23:36,821 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:23:36,986 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:23:39,970 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:23:40,095 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:23:40,270 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:23:43,106 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:23:43,236 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:23:43,405 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:23:45,012 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:23:45,138 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:23:45,386 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:23:51,767 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:23:51,891 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:23:52,061 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:23:55,757 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:23:55,880 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:23:56,055 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:24:00,318 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:24:00,447 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:24:00,618 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:24:02,866 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:24:02,988 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:24:03,159 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:24:04,798 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:24:04,923 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:24:05,094 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:24:10,739 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:24:10,862 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:24:11,032 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:24:12,756 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:24:12,880 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:24:13,049 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-10-24 02:24:17,241 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-10-24 02:24:17,362 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-24 02:24:17,529 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133