/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 23:39:00,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 23:39:00,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 23:39:00,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 23:39:00,205 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 23:39:00,231 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 23:39:00,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 23:39:00,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 23:39:00,237 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 23:39:00,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 23:39:00,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 23:39:00,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 23:39:00,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 23:39:00,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 23:39:00,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 23:39:00,239 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 23:39:00,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 23:39:00,240 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 23:39:00,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 23:39:00,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 23:39:00,241 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 23:39:00,241 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 23:39:00,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 23:39:00,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 23:39:00,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 23:39:00,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 23:39:00,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 23:39:00,242 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 23:39:00,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 23:39:00,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 23:39:00,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 23:39:00,667 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 23:39:00,668 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 23:39:00,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label32.c [2021-02-23 23:39:00,747 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a11482b2/069b05402a12456d9eca667e9dc60960/FLAG0a7211007 [2021-02-23 23:39:01,525 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 23:39:01,526 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label32.c [2021-02-23 23:39:01,548 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a11482b2/069b05402a12456d9eca667e9dc60960/FLAG0a7211007 [2021-02-23 23:39:01,769 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a11482b2/069b05402a12456d9eca667e9dc60960 [2021-02-23 23:39:01,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 23:39:01,785 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 23:39:01,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 23:39:01,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 23:39:01,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 23:39:01,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:39:01" (1/1) ... [2021-02-23 23:39:01,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@753f314c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:39:01, skipping insertion in model container [2021-02-23 23:39:01,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:39:01" (1/1) ... [2021-02-23 23:39:01,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 23:39:01,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 23:39:02,229 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label32.c[17811,17824] [2021-02-23 23:39:02,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:39:02,299 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 23:39:02,432 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label32.c[17811,17824] [2021-02-23 23:39:02,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:39:02,500 INFO L208 MainTranslator]: Completed translation [2021-02-23 23:39:02,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:39:02 WrapperNode [2021-02-23 23:39:02,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 23:39:02,502 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 23:39:02,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 23:39:02,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 23:39:02,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:39:02" (1/1) ... [2021-02-23 23:39:02,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:39:02" (1/1) ... [2021-02-23 23:39:02,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:39:02" (1/1) ... [2021-02-23 23:39:02,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:39:02" (1/1) ... [2021-02-23 23:39:02,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:39:02" (1/1) ... [2021-02-23 23:39:02,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:39:02" (1/1) ... [2021-02-23 23:39:02,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:39:02" (1/1) ... [2021-02-23 23:39:02,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 23:39:02,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 23:39:02,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 23:39:02,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 23:39:02,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:39:02" (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 [2021-02-23 23:39:02,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 23:39:02,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 23:39:02,757 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 23:39:02,757 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-23 23:39:02,757 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 23:39:02,757 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-23 23:39:02,757 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 23:39:02,758 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 23:39:02,758 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 23:39:02,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 23:39:02,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 23:39:02,758 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-23 23:39:02,759 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 23:39:02,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 23:39:02,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 23:39:02,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 23:39:02,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 23:39:02,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 23:39:02,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 23:39:04,689 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 23:39:04,689 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 23:39:04,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:39:04 BoogieIcfgContainer [2021-02-23 23:39:04,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 23:39:04,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 23:39:04,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 23:39:04,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 23:39:04,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 11:39:01" (1/3) ... [2021-02-23 23:39:04,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335e972d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:39:04, skipping insertion in model container [2021-02-23 23:39:04,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:39:02" (2/3) ... [2021-02-23 23:39:04,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335e972d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:39:04, skipping insertion in model container [2021-02-23 23:39:04,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:39:04" (3/3) ... [2021-02-23 23:39:04,702 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label32.c [2021-02-23 23:39:04,708 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 23:39:04,714 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 23:39:04,735 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 23:39:04,763 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 23:39:04,763 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 23:39:04,764 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 23:39:04,764 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 23:39:04,764 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 23:39:04,764 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 23:39:04,764 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 23:39:04,764 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 23:39:04,794 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states. [2021-02-23 23:39:04,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-02-23 23:39:04,820 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:39:04,822 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:39:04,822 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:39:04,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:39:04,829 INFO L82 PathProgramCache]: Analyzing trace with hash -71069369, now seen corresponding path program 1 times [2021-02-23 23:39:04,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:39:04,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [275244352] [2021-02-23 23:39:04,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:39:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:05,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:05,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:05,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:05,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:05,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:05,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:05,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:05,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:05,576 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-23 23:39:05,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:39:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:05,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:05,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:05,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:05,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:39:05,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:39:05,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [275244352] [2021-02-23 23:39:05,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:39:05,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 23:39:05,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797083351] [2021-02-23 23:39:05,679 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 23:39:05,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:39:05,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 23:39:05,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 23:39:05,696 INFO L87 Difference]: Start difference. First operand 536 states. Second operand 4 states. [2021-02-23 23:39:05,999 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-02-23 23:39:09,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:39:09,282 INFO L93 Difference]: Finished difference Result 1215 states and 1661 transitions. [2021-02-23 23:39:09,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 23:39:09,284 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2021-02-23 23:39:09,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:39:09,306 INFO L225 Difference]: With dead ends: 1215 [2021-02-23 23:39:09,306 INFO L226 Difference]: Without dead ends: 636 [2021-02-23 23:39:09,319 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 23:39:09,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2021-02-23 23:39:09,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 623. [2021-02-23 23:39:09,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2021-02-23 23:39:09,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 759 transitions. [2021-02-23 23:39:09,528 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 759 transitions. Word has length 143 [2021-02-23 23:39:09,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:39:09,529 INFO L480 AbstractCegarLoop]: Abstraction has 623 states and 759 transitions. [2021-02-23 23:39:09,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 23:39:09,529 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 759 transitions. [2021-02-23 23:39:09,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-02-23 23:39:09,540 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:39:09,541 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:39:09,544 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 23:39:09,544 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:39:09,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:39:09,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1072071505, now seen corresponding path program 1 times [2021-02-23 23:39:09,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:39:09,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171030912] [2021-02-23 23:39:09,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:39:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:09,714 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-23 23:39:09,715 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-23 23:39:09,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:09,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:39:09,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:09,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:09,887 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-23 23:39:09,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:39:09,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:09,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:09,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:09,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:09,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:09,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:39:09,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:09,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:09,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:10,003 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:10,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:10,061 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:39:10,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [171030912] [2021-02-23 23:39:10,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:39:10,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 23:39:10,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793660179] [2021-02-23 23:39:10,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 23:39:10,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:39:10,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 23:39:10,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-02-23 23:39:10,066 INFO L87 Difference]: Start difference. First operand 623 states and 759 transitions. Second operand 8 states. [2021-02-23 23:39:10,290 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-02-23 23:39:10,655 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-02-23 23:39:11,246 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-02-23 23:39:14,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:39:14,700 INFO L93 Difference]: Finished difference Result 1904 states and 2487 transitions. [2021-02-23 23:39:14,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 23:39:14,701 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 177 [2021-02-23 23:39:14,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:39:14,714 INFO L225 Difference]: With dead ends: 1904 [2021-02-23 23:39:14,714 INFO L226 Difference]: Without dead ends: 1311 [2021-02-23 23:39:14,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-02-23 23:39:14,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2021-02-23 23:39:14,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1247. [2021-02-23 23:39:14,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1247 states. [2021-02-23 23:39:14,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1549 transitions. [2021-02-23 23:39:14,993 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1549 transitions. Word has length 177 [2021-02-23 23:39:14,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:39:14,994 INFO L480 AbstractCegarLoop]: Abstraction has 1247 states and 1549 transitions. [2021-02-23 23:39:14,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 23:39:14,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1549 transitions. [2021-02-23 23:39:15,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-02-23 23:39:15,000 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:39:15,001 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:39:15,001 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 23:39:15,001 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:39:15,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:39:15,002 INFO L82 PathProgramCache]: Analyzing trace with hash 931465068, now seen corresponding path program 1 times [2021-02-23 23:39:15,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:39:15,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1894420903] [2021-02-23 23:39:15,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:39:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:15,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:15,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:15,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:15,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:15,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:15,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:15,216 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-23 23:39:15,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:39:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:15,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:15,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:15,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:15,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:15,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:39:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:15,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:15,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:15,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:15,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:15,357 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:39:15,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1894420903] [2021-02-23 23:39:15,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:39:15,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 23:39:15,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198901423] [2021-02-23 23:39:15,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 23:39:15,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:39:15,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 23:39:15,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-23 23:39:15,360 INFO L87 Difference]: Start difference. First operand 1247 states and 1549 transitions. Second operand 7 states. [2021-02-23 23:39:15,693 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-02-23 23:39:16,390 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-02-23 23:39:20,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:39:20,065 INFO L93 Difference]: Finished difference Result 3489 states and 4482 transitions. [2021-02-23 23:39:20,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 23:39:20,066 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2021-02-23 23:39:20,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:39:20,087 INFO L225 Difference]: With dead ends: 3489 [2021-02-23 23:39:20,087 INFO L226 Difference]: Without dead ends: 2272 [2021-02-23 23:39:20,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-23 23:39:20,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2021-02-23 23:39:20,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 2156. [2021-02-23 23:39:20,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2156 states. [2021-02-23 23:39:20,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 2639 transitions. [2021-02-23 23:39:20,590 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 2639 transitions. Word has length 178 [2021-02-23 23:39:20,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:39:20,591 INFO L480 AbstractCegarLoop]: Abstraction has 2156 states and 2639 transitions. [2021-02-23 23:39:20,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 23:39:20,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 2639 transitions. [2021-02-23 23:39:20,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-02-23 23:39:20,600 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:39:20,601 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:39:20,601 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 23:39:20,602 INFO L428 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:39:20,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:39:20,602 INFO L82 PathProgramCache]: Analyzing trace with hash 279718740, now seen corresponding path program 1 times [2021-02-23 23:39:20,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:39:20,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571674153] [2021-02-23 23:39:20,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:39:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:20,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:20,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:39:20,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:20,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:39:20,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:20,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:20,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:20,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 23:39:20,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:20,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 23:39:20,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:20,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:21,019 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-23 23:39:21,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:39:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:21,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:21,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:21,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:21,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:21,063 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:39:21,064 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:39:21,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:39:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:21,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:21,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:21,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:21,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:39:21,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-23 23:39:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:21,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:21,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:21,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:21,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:39:21,159 WARN L141 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-02-23 23:39:21,160 WARN L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-02-23 23:39:21,196 WARN L141 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-02-23 23:39:21,197 WARN L147 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size 10 [2021-02-23 23:39:21,235 WARN L141 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size [2021-02-23 23:39:21,236 WARN L147 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size 13 [2021-02-23 23:39:21,280 WARN L141 QuantifierPusher]: treesize reduction 8, result has 66.7 percent of original size [2021-02-23 23:39:21,282 WARN L147 QuantifierPusher]: treesize reduction 8, result has 66.7 percent of original size 16 [2021-02-23 23:39:21,333 WARN L141 QuantifierPusher]: treesize reduction 8, result has 70.4 percent of original size [2021-02-23 23:39:21,334 WARN L147 QuantifierPusher]: treesize reduction 8, result has 70.4 percent of original size 19 [2021-02-23 23:39:21,671 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 33 proven. 16 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-02-23 23:39:21,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571674153] [2021-02-23 23:39:21,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:39:21,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-02-23 23:39:21,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99875185] [2021-02-23 23:39:21,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-23 23:39:21,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:39:21,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-23 23:39:21,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-02-23 23:39:21,674 INFO L87 Difference]: Start difference. First operand 2156 states and 2639 transitions. Second operand 13 states. [2021-02-23 23:39:21,935 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-02-23 23:39:22,358 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-02-23 23:39:23,862 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2021-02-23 23:39:24,232 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-02-23 23:39:27,473 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2021-02-23 23:39:31,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:39:31,113 INFO L93 Difference]: Finished difference Result 7495 states and 9617 transitions. [2021-02-23 23:39:31,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-23 23:39:31,115 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 199 [2021-02-23 23:39:31,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:39:31,152 INFO L225 Difference]: With dead ends: 7495 [2021-02-23 23:39:31,153 INFO L226 Difference]: Without dead ends: 3976 [2021-02-23 23:39:31,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-02-23 23:39:31,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3976 states. [2021-02-23 23:39:31,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3976 to 3543. [2021-02-23 23:39:31,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3543 states. [2021-02-23 23:39:31,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3543 states to 3543 states and 4270 transitions. [2021-02-23 23:39:31,803 INFO L78 Accepts]: Start accepts. Automaton has 3543 states and 4270 transitions. Word has length 199 [2021-02-23 23:39:31,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:39:31,804 INFO L480 AbstractCegarLoop]: Abstraction has 3543 states and 4270 transitions. [2021-02-23 23:39:31,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-23 23:39:31,804 INFO L276 IsEmpty]: Start isEmpty. Operand 3543 states and 4270 transitions. [2021-02-23 23:39:31,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-02-23 23:39:31,816 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:39:31,817 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:39:31,817 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 23:39:31,818 INFO L428 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:39:31,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:39:31,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1491190369, now seen corresponding path program 1 times [2021-02-23 23:39:31,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:39:31,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1968092126] [2021-02-23 23:39:31,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:39:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:31,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:31,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:31,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:31,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:31,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:31,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:39:31,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:31,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:32,029 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-23 23:39:32,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:39:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:32,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:32,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:32,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:32,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:32,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:39:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:32,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:32,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:32,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:32,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:32,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-23 23:39:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:32,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:32,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:32,126 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:32,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:32,228 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 60 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-23 23:39:32,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1968092126] [2021-02-23 23:39:32,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:39:32,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-02-23 23:39:32,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869691226] [2021-02-23 23:39:32,231 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 23:39:32,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:39:32,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 23:39:32,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-02-23 23:39:32,232 INFO L87 Difference]: Start difference. First operand 3543 states and 4270 transitions. Second operand 9 states. [2021-02-23 23:39:32,482 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-02-23 23:39:32,903 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-02-23 23:39:33,837 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-02-23 23:39:34,894 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-02-23 23:39:37,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:39:37,134 INFO L93 Difference]: Finished difference Result 7478 states and 9203 transitions. [2021-02-23 23:39:37,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-23 23:39:37,135 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 210 [2021-02-23 23:39:37,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:39:37,165 INFO L225 Difference]: With dead ends: 7478 [2021-02-23 23:39:37,165 INFO L226 Difference]: Without dead ends: 3784 [2021-02-23 23:39:37,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-02-23 23:39:37,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3784 states. [2021-02-23 23:39:37,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3784 to 3738. [2021-02-23 23:39:37,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3738 states. [2021-02-23 23:39:37,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3738 states to 3738 states and 4371 transitions. [2021-02-23 23:39:37,983 INFO L78 Accepts]: Start accepts. Automaton has 3738 states and 4371 transitions. Word has length 210 [2021-02-23 23:39:37,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:39:37,984 INFO L480 AbstractCegarLoop]: Abstraction has 3738 states and 4371 transitions. [2021-02-23 23:39:37,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 23:39:37,984 INFO L276 IsEmpty]: Start isEmpty. Operand 3738 states and 4371 transitions. [2021-02-23 23:39:37,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-02-23 23:39:37,995 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:39:37,996 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:39:37,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 23:39:37,996 INFO L428 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:39:37,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:39:37,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1899705773, now seen corresponding path program 1 times [2021-02-23 23:39:37,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:39:37,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [942150343] [2021-02-23 23:39:37,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:39:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:38,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:38,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:38,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:38,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:38,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:38,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:38,183 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-23 23:39:38,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:39:38,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:38,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:38,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:38,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:39:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:38,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:38,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:38,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:38,227 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:39:38,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-23 23:39:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:38,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:38,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:38,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:38,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:39:38,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-02-23 23:39:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:38,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:38,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:38,343 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 89 proven. 18 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-02-23 23:39:38,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [942150343] [2021-02-23 23:39:38,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:39:38,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-23 23:39:38,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742351537] [2021-02-23 23:39:38,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 23:39:38,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:39:38,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 23:39:38,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-23 23:39:38,345 INFO L87 Difference]: Start difference. First operand 3738 states and 4371 transitions. Second operand 7 states. [2021-02-23 23:39:38,602 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-02-23 23:39:39,017 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-02-23 23:39:42,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:39:42,807 INFO L93 Difference]: Finished difference Result 7573 states and 8834 transitions. [2021-02-23 23:39:42,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 23:39:42,809 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 232 [2021-02-23 23:39:42,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:39:42,837 INFO L225 Difference]: With dead ends: 7573 [2021-02-23 23:39:42,837 INFO L226 Difference]: Without dead ends: 3660 [2021-02-23 23:39:42,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-23 23:39:42,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3660 states. [2021-02-23 23:39:43,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3660 to 3617. [2021-02-23 23:39:43,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3617 states. [2021-02-23 23:39:43,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3617 states to 3617 states and 4063 transitions. [2021-02-23 23:39:43,731 INFO L78 Accepts]: Start accepts. Automaton has 3617 states and 4063 transitions. Word has length 232 [2021-02-23 23:39:43,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:39:43,732 INFO L480 AbstractCegarLoop]: Abstraction has 3617 states and 4063 transitions. [2021-02-23 23:39:43,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 23:39:43,732 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 4063 transitions. [2021-02-23 23:39:43,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-02-23 23:39:43,746 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:39:43,747 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:39:43,747 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 23:39:43,747 INFO L428 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:39:43,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:39:43,748 INFO L82 PathProgramCache]: Analyzing trace with hash 37317072, now seen corresponding path program 1 times [2021-02-23 23:39:43,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:39:43,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [945038764] [2021-02-23 23:39:43,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:39:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:43,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:43,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:43,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:43,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:43,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:43,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:43,996 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-23 23:39:43,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:39:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:44,015 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:44,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:44,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:39:44,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:44,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:44,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:44,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 23:39:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:44,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:44,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:44,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:44,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:39:44,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-02-23 23:39:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:44,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:44,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:44,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:44,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:39:44,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:44,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:44,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 23:39:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:44,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:44,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:44,188 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 133 proven. 4 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-02-23 23:39:44,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [945038764] [2021-02-23 23:39:44,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:39:44,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-02-23 23:39:44,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474155904] [2021-02-23 23:39:44,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 23:39:44,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:39:44,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 23:39:44,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-02-23 23:39:44,190 INFO L87 Difference]: Start difference. First operand 3617 states and 4063 transitions. Second operand 6 states. [2021-02-23 23:39:44,405 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-02-23 23:39:44,876 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-02-23 23:39:46,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:39:46,898 INFO L93 Difference]: Finished difference Result 4123 states and 4621 transitions. [2021-02-23 23:39:46,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-23 23:39:46,899 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 262 [2021-02-23 23:39:46,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:39:46,909 INFO L225 Difference]: With dead ends: 4123 [2021-02-23 23:39:46,910 INFO L226 Difference]: Without dead ends: 2026 [2021-02-23 23:39:46,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-02-23 23:39:46,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2021-02-23 23:39:47,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 2026. [2021-02-23 23:39:47,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2026 states. [2021-02-23 23:39:47,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2026 states to 2026 states and 2227 transitions. [2021-02-23 23:39:47,288 INFO L78 Accepts]: Start accepts. Automaton has 2026 states and 2227 transitions. Word has length 262 [2021-02-23 23:39:47,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:39:47,288 INFO L480 AbstractCegarLoop]: Abstraction has 2026 states and 2227 transitions. [2021-02-23 23:39:47,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 23:39:47,288 INFO L276 IsEmpty]: Start isEmpty. Operand 2026 states and 2227 transitions. [2021-02-23 23:39:47,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-02-23 23:39:47,297 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:39:47,297 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:39:47,298 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 23:39:47,298 INFO L428 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:39:47,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:39:47,298 INFO L82 PathProgramCache]: Analyzing trace with hash -328948752, now seen corresponding path program 1 times [2021-02-23 23:39:47,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:39:47,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1777287490] [2021-02-23 23:39:47,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:39:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:47,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:47,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:47,369 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-23 23:39:47,370 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-23 23:39:47,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:47,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:47,520 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-23 23:39:47,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:39:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:47,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:47,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:47,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:39:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:47,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:47,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:47,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:47,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:47,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 23:39:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:47,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:47,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:47,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:47,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:47,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-23 23:39:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:47,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:47,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:47,763 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 130 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-02-23 23:39:47,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1777287490] [2021-02-23 23:39:47,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:39:47,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-02-23 23:39:47,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78531634] [2021-02-23 23:39:47,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 23:39:47,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:39:47,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 23:39:47,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-02-23 23:39:47,766 INFO L87 Difference]: Start difference. First operand 2026 states and 2227 transitions. Second operand 8 states. [2021-02-23 23:39:48,031 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-02-23 23:39:48,424 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-02-23 23:39:50,055 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-02-23 23:39:51,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:39:51,870 INFO L93 Difference]: Finished difference Result 4178 states and 4610 transitions. [2021-02-23 23:39:51,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 23:39:51,870 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 275 [2021-02-23 23:39:51,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:39:51,880 INFO L225 Difference]: With dead ends: 4178 [2021-02-23 23:39:51,880 INFO L226 Difference]: Without dead ends: 1448 [2021-02-23 23:39:51,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-02-23 23:39:51,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2021-02-23 23:39:52,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1448. [2021-02-23 23:39:52,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1448 states. [2021-02-23 23:39:52,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 1500 transitions. [2021-02-23 23:39:52,176 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 1500 transitions. Word has length 275 [2021-02-23 23:39:52,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:39:52,177 INFO L480 AbstractCegarLoop]: Abstraction has 1448 states and 1500 transitions. [2021-02-23 23:39:52,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 23:39:52,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 1500 transitions. [2021-02-23 23:39:52,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-02-23 23:39:52,189 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:39:52,190 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 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] [2021-02-23 23:39:52,190 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 23:39:52,190 INFO L428 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:39:52,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:39:52,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1849571097, now seen corresponding path program 1 times [2021-02-23 23:39:52,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:39:52,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669931921] [2021-02-23 23:39:52,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:39:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:52,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:52,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 23:39:52,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:52,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 23:39:52,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:52,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:39:52,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:52,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:39:52,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:52,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:39:52,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:52,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:39:52,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:52,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:52,505 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-23 23:39:52,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:39:52,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:52,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:52,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:52,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:52,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:52,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:52,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:52,552 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:39:52,554 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:39:52,575 WARN L141 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-02-23 23:39:52,576 WARN L147 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size 10 [2021-02-23 23:39:52,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:39:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:52,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:52,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:52,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:52,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:52,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 23:39:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:52,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:52,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:52,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:52,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:52,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-02-23 23:39:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:39:52,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:52,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:39:52,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:39:52,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:39:52,820 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 126 proven. 24 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-02-23 23:39:52,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669931921] [2021-02-23 23:39:52,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:39:52,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-23 23:39:52,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994574579] [2021-02-23 23:39:52,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 23:39:52,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:39:52,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 23:39:52,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-23 23:39:52,823 INFO L87 Difference]: Start difference. First operand 1448 states and 1500 transitions. Second operand 10 states. [2021-02-23 23:39:53,180 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-02-23 23:39:53,717 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-02-23 23:39:54,963 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-02-23 23:39:55,753 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-02-23 23:39:56,936 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-02-23 23:39:58,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:39:58,256 INFO L93 Difference]: Finished difference Result 2090 states and 2178 transitions. [2021-02-23 23:39:58,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-23 23:39:58,257 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 317 [2021-02-23 23:39:58,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:39:58,259 INFO L225 Difference]: With dead ends: 2090 [2021-02-23 23:39:58,259 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 23:39:58,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2021-02-23 23:39:58,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 23:39:58,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 23:39:58,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 23:39:58,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 23:39:58,264 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 317 [2021-02-23 23:39:58,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:39:58,264 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 23:39:58,264 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 23:39:58,264 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 23:39:58,265 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 23:39:58,265 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 23:39:58,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 23:40:55,615 WARN L202 SmtUtils]: Spent 4.22 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:40:59,770 WARN L202 SmtUtils]: Spent 4.14 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:41:01,380 WARN L202 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 100 DAG size of output: 69 [2021-02-23 23:41:03,309 WARN L202 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 150 DAG size of output: 66 [2021-02-23 23:41:04,484 WARN L202 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 138 DAG size of output: 67 [2021-02-23 23:41:05,697 WARN L202 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 138 DAG size of output: 67 [2021-02-23 23:41:09,971 WARN L202 SmtUtils]: Spent 4.27 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:41:11,499 WARN L202 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 137 DAG size of output: 66 [2021-02-23 23:41:15,764 WARN L202 SmtUtils]: Spent 4.26 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:41:20,045 WARN L202 SmtUtils]: Spent 4.27 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:41:24,308 WARN L202 SmtUtils]: Spent 4.25 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:41:25,806 WARN L202 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 137 DAG size of output: 66 [2021-02-23 23:41:27,763 WARN L202 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 150 DAG size of output: 71 [2021-02-23 23:41:29,761 WARN L202 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 143 DAG size of output: 69 [2021-02-23 23:41:31,018 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:41:32,940 WARN L202 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 150 DAG size of output: 77 [2021-02-23 23:41:34,404 WARN L202 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-02-23 23:41:35,776 WARN L202 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 102 DAG size of output: 68 [2021-02-23 23:41:39,937 WARN L202 SmtUtils]: Spent 4.16 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:41:41,858 WARN L202 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 150 DAG size of output: 66 [2021-02-23 23:41:43,118 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:41:47,290 WARN L202 SmtUtils]: Spent 4.17 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:41:48,547 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:41:49,802 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:41:51,192 WARN L202 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 93 DAG size of output: 65 [2021-02-23 23:41:52,359 WARN L202 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2021-02-23 23:41:53,245 WARN L202 SmtUtils]: Spent 884.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 60 [2021-02-23 23:41:54,705 WARN L202 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 141 DAG size of output: 66 [2021-02-23 23:41:58,870 WARN L202 SmtUtils]: Spent 4.16 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:42:00,395 WARN L202 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-02-23 23:42:01,293 WARN L202 SmtUtils]: Spent 894.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 60 [2021-02-23 23:42:02,181 WARN L202 SmtUtils]: Spent 885.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 60 [2021-02-23 23:42:03,698 WARN L202 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 137 DAG size of output: 66 [2021-02-23 23:42:08,032 WARN L202 SmtUtils]: Spent 4.28 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:42:09,559 WARN L202 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 137 DAG size of output: 66 [2021-02-23 23:42:10,792 WARN L202 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 138 DAG size of output: 67 [2021-02-23 23:42:12,270 WARN L202 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 93 DAG size of output: 65 [2021-02-23 23:42:13,704 WARN L202 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-02-23 23:42:14,963 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:42:16,559 WARN L202 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 147 DAG size of output: 70 [2021-02-23 23:42:20,731 WARN L202 SmtUtils]: Spent 4.16 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:42:22,326 WARN L202 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 99 DAG size of output: 72 [2021-02-23 23:42:24,067 WARN L202 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 150 DAG size of output: 67 [2021-02-23 23:42:28,259 WARN L202 SmtUtils]: Spent 4.18 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:42:29,814 WARN L202 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 110 DAG size of output: 70 [2021-02-23 23:42:31,080 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:42:32,450 WARN L202 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 88 DAG size of output: 60 [2021-02-23 23:42:36,625 WARN L202 SmtUtils]: Spent 4.17 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:42:40,802 WARN L202 SmtUtils]: Spent 4.17 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:42:42,068 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:42:43,652 WARN L202 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2021-02-23 23:42:44,650 WARN L202 SmtUtils]: Spent 992.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-02-23 23:42:45,915 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:42:46,808 WARN L202 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 60 [2021-02-23 23:42:48,075 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:42:52,257 WARN L202 SmtUtils]: Spent 4.18 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:42:56,413 WARN L202 SmtUtils]: Spent 4.15 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:42:57,895 WARN L202 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 103 DAG size of output: 65 [2021-02-23 23:42:59,393 WARN L202 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-02-23 23:43:00,897 WARN L202 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 93 DAG size of output: 65 [2021-02-23 23:43:02,421 WARN L202 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 99 DAG size of output: 70 [2021-02-23 23:43:03,767 WARN L202 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-02-23 23:43:05,035 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:43:06,303 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:43:07,575 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:43:08,577 WARN L202 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-02-23 23:43:09,841 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:43:11,415 WARN L202 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 112 DAG size of output: 72 [2021-02-23 23:43:12,794 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:43:16,984 WARN L202 SmtUtils]: Spent 4.18 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:43:18,589 WARN L202 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-02-23 23:43:20,021 WARN L202 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-02-23 23:43:21,226 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 93 DAG size of output: 69 [2021-02-23 23:43:25,542 WARN L202 SmtUtils]: Spent 4.28 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:43:29,863 WARN L202 SmtUtils]: Spent 4.32 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:43:31,540 WARN L202 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 137 DAG size of output: 66 [2021-02-23 23:43:33,222 WARN L202 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 137 DAG size of output: 66 [2021-02-23 23:43:34,582 WARN L202 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 138 DAG size of output: 67 [2021-02-23 23:43:39,251 WARN L202 SmtUtils]: Spent 4.66 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:43:40,597 WARN L202 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 138 DAG size of output: 67 [2021-02-23 23:43:45,240 WARN L202 SmtUtils]: Spent 4.64 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:43:49,887 WARN L202 SmtUtils]: Spent 4.64 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:43:51,264 WARN L202 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:43:53,432 WARN L202 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 150 DAG size of output: 78 [2021-02-23 23:43:54,769 WARN L202 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:43:56,839 WARN L202 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 142 DAG size of output: 66 [2021-02-23 23:43:58,669 WARN L202 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 143 DAG size of output: 70 [2021-02-23 23:44:03,223 WARN L202 SmtUtils]: Spent 4.55 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:44:04,753 WARN L202 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-02-23 23:44:06,341 WARN L202 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 141 DAG size of output: 66 [2021-02-23 23:44:07,707 WARN L202 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:44:09,062 WARN L202 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:44:10,421 WARN L202 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:44:12,075 WARN L202 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 100 DAG size of output: 72 [2021-02-23 23:44:16,510 WARN L202 SmtUtils]: Spent 4.43 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:44:18,210 WARN L202 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 141 DAG size of output: 71 [2021-02-23 23:44:22,538 WARN L202 SmtUtils]: Spent 4.32 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:44:23,814 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:44:24,986 WARN L202 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 143 DAG size of output: 67 [2021-02-23 23:44:29,188 WARN L202 SmtUtils]: Spent 4.20 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:44:33,410 WARN L202 SmtUtils]: Spent 4.22 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:44:34,870 WARN L202 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 142 DAG size of output: 55 [2021-02-23 23:44:39,094 WARN L202 SmtUtils]: Spent 4.22 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:44:43,405 WARN L202 SmtUtils]: Spent 4.30 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:44:45,367 WARN L202 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 142 DAG size of output: 66 [2021-02-23 23:44:46,578 WARN L202 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 93 DAG size of output: 69 [2021-02-23 23:44:47,857 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:44:52,167 WARN L202 SmtUtils]: Spent 4.30 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:44:53,409 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 138 DAG size of output: 67 [2021-02-23 23:44:54,650 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 138 DAG size of output: 67 [2021-02-23 23:44:55,894 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 138 DAG size of output: 67 [2021-02-23 23:45:00,205 WARN L202 SmtUtils]: Spent 4.30 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:45:01,213 WARN L202 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-02-23 23:45:05,511 WARN L202 SmtUtils]: Spent 4.29 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:45:07,080 WARN L202 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 100 DAG size of output: 71 [2021-02-23 23:45:08,354 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:45:12,563 WARN L202 SmtUtils]: Spent 4.20 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:45:14,012 WARN L202 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-02-23 23:45:15,291 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:45:16,744 WARN L202 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-02-23 23:45:18,021 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:45:19,298 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:45:20,713 WARN L202 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2021-02-23 23:45:22,291 WARN L202 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-02-23 23:45:23,570 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:45:24,849 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:45:26,831 WARN L202 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 151 DAG size of output: 77 [2021-02-23 23:45:28,108 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:45:29,648 WARN L202 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 137 DAG size of output: 66 [2021-02-23 23:45:33,964 WARN L202 SmtUtils]: Spent 4.31 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:45:38,289 WARN L202 SmtUtils]: Spent 4.32 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:45:39,539 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 138 DAG size of output: 67 [2021-02-23 23:45:40,788 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 138 DAG size of output: 67 [2021-02-23 23:45:42,458 WARN L202 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 101 DAG size of output: 70 [2021-02-23 23:45:46,666 WARN L202 SmtUtils]: Spent 4.20 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:45:47,950 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:45:49,394 WARN L202 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-02-23 23:45:53,609 WARN L202 SmtUtils]: Spent 4.21 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:45:54,800 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 145 DAG size of output: 67 [2021-02-23 23:45:56,081 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:46:00,289 WARN L202 SmtUtils]: Spent 4.20 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:46:01,572 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:46:03,093 WARN L202 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 148 DAG size of output: 66 [2021-02-23 23:46:05,186 WARN L202 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 151 DAG size of output: 69 [2021-02-23 23:46:06,746 WARN L202 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 103 DAG size of output: 70 [2021-02-23 23:46:08,184 WARN L202 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 101 DAG size of output: 69 [2021-02-23 23:46:09,633 WARN L202 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 102 DAG size of output: 68 [2021-02-23 23:46:11,390 WARN L202 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 150 DAG size of output: 73 [2021-02-23 23:46:13,382 WARN L202 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 151 DAG size of output: 77 [2021-02-23 23:46:17,592 WARN L202 SmtUtils]: Spent 4.20 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:46:19,482 WARN L202 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 149 DAG size of output: 71 [2021-02-23 23:46:21,016 WARN L202 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 103 DAG size of output: 69 [2021-02-23 23:46:22,214 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 145 DAG size of output: 67 [2021-02-23 23:46:23,250 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-02-23 23:46:27,574 WARN L202 SmtUtils]: Spent 4.32 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:46:28,858 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:46:30,405 WARN L202 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 137 DAG size of output: 66 [2021-02-23 23:46:31,955 WARN L202 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 137 DAG size of output: 66 [2021-02-23 23:46:36,283 WARN L202 SmtUtils]: Spent 4.32 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:46:37,589 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:46:39,094 WARN L202 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-02-23 23:46:40,380 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:46:41,664 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:46:45,891 WARN L202 SmtUtils]: Spent 4.22 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:46:50,125 WARN L202 SmtUtils]: Spent 4.23 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:46:51,648 WARN L202 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 95 DAG size of output: 66 [2021-02-23 23:46:52,947 WARN L202 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:46:54,630 WARN L202 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 137 DAG size of output: 66 [2021-02-23 23:46:56,308 WARN L202 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 102 DAG size of output: 68 [2021-02-23 23:47:01,072 WARN L202 SmtUtils]: Spent 4.76 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:47:02,476 WARN L202 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 103 DAG size of output: 72 [2021-02-23 23:47:04,170 WARN L202 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 137 DAG size of output: 66 [2021-02-23 23:47:05,579 WARN L202 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:47:10,276 WARN L202 SmtUtils]: Spent 4.69 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:47:14,918 WARN L202 SmtUtils]: Spent 4.64 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:47:16,521 WARN L202 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 137 DAG size of output: 66 [2021-02-23 23:47:21,112 WARN L202 SmtUtils]: Spent 4.58 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:47:25,707 WARN L202 SmtUtils]: Spent 4.59 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:47:30,417 WARN L202 SmtUtils]: Spent 4.70 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:47:31,763 WARN L202 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 138 DAG size of output: 67 [2021-02-23 23:47:33,432 WARN L202 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 137 DAG size of output: 66 [2021-02-23 23:47:34,781 WARN L202 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 138 DAG size of output: 67 [2021-02-23 23:47:39,431 WARN L202 SmtUtils]: Spent 4.64 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:47:40,801 WARN L202 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:47:42,174 WARN L202 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:47:46,650 WARN L202 SmtUtils]: Spent 4.47 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:47:51,140 WARN L202 SmtUtils]: Spent 4.48 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:47:52,675 WARN L202 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-02-23 23:47:54,266 WARN L202 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-02-23 23:47:55,644 WARN L202 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:47:59,933 WARN L202 SmtUtils]: Spent 4.28 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:48:01,986 WARN L202 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 146 DAG size of output: 69 [2021-02-23 23:48:03,530 WARN L202 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 101 DAG size of output: 68 [2021-02-23 23:48:07,774 WARN L202 SmtUtils]: Spent 4.24 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:48:09,307 WARN L202 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 148 DAG size of output: 66 [2021-02-23 23:48:10,860 WARN L202 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 137 DAG size of output: 66 [2021-02-23 23:48:12,071 WARN L202 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 102 DAG size of output: 69 [2021-02-23 23:48:16,410 WARN L202 SmtUtils]: Spent 4.33 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:48:17,771 WARN L202 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:48:19,245 WARN L202 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 100 DAG size of output: 66 [2021-02-23 23:48:20,539 WARN L202 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:48:22,333 WARN L202 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 103 DAG size of output: 74 [2021-02-23 23:48:23,394 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-02-23 23:48:25,001 WARN L202 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 103 DAG size of output: 71 [2021-02-23 23:48:26,157 WARN L202 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 138 DAG size of output: 67 [2021-02-23 23:48:27,451 WARN L202 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:48:31,688 WARN L202 SmtUtils]: Spent 4.23 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:48:35,948 WARN L202 SmtUtils]: Spent 4.25 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:48:37,021 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 102 DAG size of output: 69 [2021-02-23 23:48:41,275 WARN L202 SmtUtils]: Spent 4.25 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:48:43,245 WARN L202 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 150 DAG size of output: 77 [2021-02-23 23:48:45,964 WARN L202 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 151 DAG size of output: 72 [2021-02-23 23:48:47,260 WARN L202 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:48:48,557 WARN L202 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:48:50,101 WARN L202 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 104 DAG size of output: 70 [2021-02-23 23:48:54,347 WARN L202 SmtUtils]: Spent 4.24 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:48:56,151 WARN L202 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 150 DAG size of output: 77 [2021-02-23 23:49:00,399 WARN L202 SmtUtils]: Spent 4.24 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:49:01,472 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 102 DAG size of output: 69 [2021-02-23 23:49:03,486 WARN L202 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 146 DAG size of output: 72 [2021-02-23 23:49:05,028 WARN L202 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 104 DAG size of output: 66 [2021-02-23 23:49:05,972 WARN L202 SmtUtils]: Spent 941.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 60 [2021-02-23 23:49:07,035 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 101 DAG size of output: 69 [2021-02-23 23:49:08,080 WARN L202 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-02-23 23:49:09,584 WARN L202 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-02-23 23:49:11,680 WARN L202 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 156 DAG size of output: 68 [2021-02-23 23:49:12,987 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:49:14,759 WARN L202 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 154 DAG size of output: 70 [2021-02-23 23:49:16,443 WARN L202 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 101 DAG size of output: 72 [2021-02-23 23:49:17,901 WARN L202 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 94 DAG size of output: 63 [2021-02-23 23:49:19,199 WARN L202 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:49:21,279 WARN L202 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 150 DAG size of output: 78 [2021-02-23 23:49:22,579 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:49:23,615 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-02-23 23:49:25,664 WARN L202 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 139 DAG size of output: 67 [2021-02-23 23:49:29,936 WARN L202 SmtUtils]: Spent 4.26 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:49:31,238 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:49:35,493 WARN L202 SmtUtils]: Spent 4.25 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:49:37,285 WARN L202 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2021-02-23 23:49:41,545 WARN L202 SmtUtils]: Spent 4.25 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:49:43,013 WARN L202 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-02-23 23:49:44,314 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:49:45,580 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 138 DAG size of output: 67 [2021-02-23 23:49:46,850 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 138 DAG size of output: 67 [2021-02-23 23:49:51,221 WARN L202 SmtUtils]: Spent 4.37 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:49:52,492 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 138 DAG size of output: 67 [2021-02-23 23:49:56,880 WARN L202 SmtUtils]: Spent 4.36 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:50:01,303 WARN L202 SmtUtils]: Spent 4.37 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:50:05,765 WARN L202 SmtUtils]: Spent 4.46 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:50:07,351 WARN L202 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 137 DAG size of output: 66 [2021-02-23 23:50:08,624 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 138 DAG size of output: 67 [2021-02-23 23:50:10,196 WARN L202 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 137 DAG size of output: 66 [2021-02-23 23:50:11,501 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:50:13,055 WARN L202 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 147 DAG size of output: 66 [2021-02-23 23:50:17,325 WARN L202 SmtUtils]: Spent 4.26 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:50:21,600 WARN L202 SmtUtils]: Spent 4.27 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:50:25,867 WARN L202 SmtUtils]: Spent 4.26 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:50:27,174 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:50:28,733 WARN L202 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 148 DAG size of output: 66 [2021-02-23 23:50:30,042 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:50:31,641 WARN L202 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 95 DAG size of output: 66 [2021-02-23 23:50:33,378 WARN L202 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 144 DAG size of output: 77 [2021-02-23 23:50:37,767 WARN L202 SmtUtils]: Spent 4.38 s on a formula simplification. DAG size of input: 186 DAG size of output: 81 [2021-02-23 23:50:42,050 WARN L202 SmtUtils]: Spent 4.28 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:50:46,331 WARN L202 SmtUtils]: Spent 4.27 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:50:47,957 WARN L202 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-02-23 23:50:49,476 WARN L202 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 100 DAG size of output: 69 [2021-02-23 23:50:50,794 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 100 DAG size of output: 75 [2021-02-23 23:50:52,186 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:50:53,499 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:50:54,808 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:50:59,095 WARN L202 SmtUtils]: Spent 4.28 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:51:00,410 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:51:04,696 WARN L202 SmtUtils]: Spent 4.28 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:51:08,993 WARN L202 SmtUtils]: Spent 4.29 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:51:11,104 WARN L202 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 149 DAG size of output: 71 [2021-02-23 23:51:13,176 WARN L202 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 139 DAG size of output: 67 [2021-02-23 23:51:14,246 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 97 DAG size of output: 70 [2021-02-23 23:51:15,563 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:51:19,860 WARN L202 SmtUtils]: Spent 4.29 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:51:21,299 WARN L202 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-02-23 23:51:22,827 WARN L202 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 103 DAG size of output: 64 [2021-02-23 23:51:24,146 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:51:28,443 WARN L202 SmtUtils]: Spent 4.29 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:51:30,002 WARN L202 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 148 DAG size of output: 66 [2021-02-23 23:51:31,495 WARN L202 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 105 DAG size of output: 65 [2021-02-23 23:51:32,732 WARN L202 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 102 DAG size of output: 71 [2021-02-23 23:51:34,150 WARN L202 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 102 DAG size of output: 66 [2021-02-23 23:51:35,468 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:51:36,642 WARN L202 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 138 DAG size of output: 67 [2021-02-23 23:51:37,963 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:51:39,622 WARN L202 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 147 DAG size of output: 70 [2021-02-23 23:51:41,057 WARN L202 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2021-02-23 23:51:42,749 WARN L202 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 142 DAG size of output: 72 [2021-02-23 23:51:44,835 WARN L202 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 155 DAG size of output: 75 [2021-02-23 23:51:46,155 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:51:48,129 WARN L202 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 150 DAG size of output: 66 [2021-02-23 23:51:49,685 WARN L202 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 147 DAG size of output: 66 [2021-02-23 23:51:51,002 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:51:52,324 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:51:53,746 WARN L202 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2021-02-23 23:51:55,069 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:51:56,397 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:51:58,676 WARN L202 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 151 DAG size of output: 70 [2021-02-23 23:52:00,631 WARN L202 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 148 DAG size of output: 69 [2021-02-23 23:52:01,951 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:52:03,276 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:52:05,193 WARN L202 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 149 DAG size of output: 70 [2021-02-23 23:52:06,518 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:52:10,829 WARN L202 SmtUtils]: Spent 4.30 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2021-02-23 23:52:12,152 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:52:13,475 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-23 23:52:14,971 WARN L202 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-02-23 23:52:16,497 WARN L202 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 98 DAG size of output: 69 [2021-02-23 23:52:16,793 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 34 [2021-02-23 23:52:18,268 WARN L202 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 95 DAG size of output: 64