/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label55.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:11:06,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:11:06,500 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:11:06,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:11:06,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:11:06,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:11:06,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:11:06,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:11:06,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:11:06,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:11:06,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:11:06,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:11:06,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:11:06,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:11:06,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:11:06,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:11:06,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:11:06,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:11:06,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:11:06,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:11:06,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:11:06,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:11:06,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:11:06,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:11:06,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:11:06,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:11:06,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:11:06,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:11:06,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:11:06,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-09-24 17:11:06,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:11:06,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:11:06,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:11:06,635 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 17:11:06,680 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:11:06,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:11:06,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:11:06,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:11:06,683 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:11:06,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:11:06,684 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:11:06,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:11:06,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:11:06,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:11:06,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:11:06,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:11:06,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:11:06,687 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:11:06,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:11:06,687 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:11:06,687 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:11:06,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:11:06,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:11:06,688 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:11:06,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:11:06,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:11:06,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:11:06,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:11:06,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:11:06,689 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:11:06,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:11:06,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:11:06,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:11:06,690 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES 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: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; [2020-09-24 17:11:07,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:11:07,159 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:11:07,165 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:11:07,169 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:11:07,170 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:11:07,171 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label55.c [2020-09-24 17:11:07,269 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a927f52dc/62ea52ed0c034928915c47150c039bfb/FLAG9d4547cba [2020-09-24 17:11:07,957 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:11:07,960 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label55.c [2020-09-24 17:11:07,981 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a927f52dc/62ea52ed0c034928915c47150c039bfb/FLAG9d4547cba [2020-09-24 17:11:08,178 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a927f52dc/62ea52ed0c034928915c47150c039bfb [2020-09-24 17:11:08,197 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:11:08,202 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:11:08,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:11:08,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:11:08,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:11:08,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:11:08" (1/1) ... [2020-09-24 17:11:08,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17e5ec8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:11:08, skipping insertion in model container [2020-09-24 17:11:08,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:11:08" (1/1) ... [2020-09-24 17:11:08,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:11:08,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:11:08,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:11:08,781 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:11:08,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:11:09,016 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:11:09,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:11:09 WrapperNode [2020-09-24 17:11:09,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:11:09,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:11:09,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:11:09,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:11:09,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:11:09" (1/1) ... [2020-09-24 17:11:09,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:11:09" (1/1) ... [2020-09-24 17:11:09,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:11:09" (1/1) ... [2020-09-24 17:11:09,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:11:09" (1/1) ... [2020-09-24 17:11:09,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:11:09" (1/1) ... [2020-09-24 17:11:09,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:11:09" (1/1) ... [2020-09-24 17:11:09,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:11:09" (1/1) ... [2020-09-24 17:11:09,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:11:09,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:11:09,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:11:09,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:11:09,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:11:09" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:11:09,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:11:09,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:11:09,264 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-24 17:11:09,264 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:11:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-24 17:11:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:11:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:11:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-24 17:11:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:11:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:11:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:11:10,583 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:11:10,584 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 17:11:10,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:11:10 BoogieIcfgContainer [2020-09-24 17:11:10,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:11:10,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:11:10,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:11:10,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:11:10,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:11:08" (1/3) ... [2020-09-24 17:11:10,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223224ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:11:10, skipping insertion in model container [2020-09-24 17:11:10,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:11:09" (2/3) ... [2020-09-24 17:11:10,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223224ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:11:10, skipping insertion in model container [2020-09-24 17:11:10,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:11:10" (3/3) ... [2020-09-24 17:11:10,603 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label55.c [2020-09-24 17:11:10,615 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:11:10,627 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:11:10,651 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:11:10,687 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:11:10,687 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:11:10,688 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:11:10,688 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:11:10,688 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:11:10,688 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:11:10,688 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:11:10,688 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:11:10,721 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states. [2020-09-24 17:11:10,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-09-24 17:11:10,742 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:11:10,743 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] [2020-09-24 17:11:10,744 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:11:10,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:11:10,752 INFO L82 PathProgramCache]: Analyzing trace with hash -2144769179, now seen corresponding path program 1 times [2020-09-24 17:11:10,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:11:10,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68871380] [2020-09-24 17:11:10,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:11:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:11:11,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:11:11,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:11:12,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:11:12,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:11:15,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:11:16,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:11:16,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:11:18,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:11:19,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:11:21,858 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:11:21,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-09-24 17:11:21,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 17:11:21,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10811 [2020-09-24 17:11:21,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:11:21,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 17:11:21,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 17:11:21,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 17:11:21,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:11:22,517 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2020-09-24 17:11:22,693 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 37 [2020-09-24 17:11:22,853 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2020-09-24 17:11:23,047 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2020-09-24 17:11:23,194 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2020-09-24 17:11:23,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:11:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:11:24,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:11:24,068 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:11:24,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 17:11:24,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:11:24,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 17:11:24,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:11:24,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:11:24,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:11:24,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 17:11:24,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:11:24,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:11:24,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [68871380] [2020-09-24 17:11:24,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:11:24,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-09-24 17:11:24,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272090678] [2020-09-24 17:11:24,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-24 17:11:24,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:11:24,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-24 17:11:24,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=339, Unknown=0, NotChecked=0, Total=552 [2020-09-24 17:11:24,292 INFO L87 Difference]: Start difference. First operand 525 states. Second operand 24 states. [2020-09-24 17:11:24,651 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-09-24 17:11:24,911 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-09-24 17:11:25,213 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-09-24 17:11:25,562 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-09-24 17:11:25,869 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-24 17:11:26,107 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-24 17:11:26,837 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-24 17:11:27,215 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-24 17:11:27,694 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-24 17:11:27,995 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-24 17:11:28,506 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-24 17:11:28,955 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-24 17:11:29,165 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-09-24 17:11:29,652 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-09-24 17:11:30,706 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-09-24 17:11:31,274 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-09-24 17:11:31,606 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-09-24 17:11:31,805 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-09-24 17:11:32,306 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-09-24 17:11:32,546 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-09-24 17:11:32,929 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-09-24 17:11:33,215 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-09-24 17:11:33,559 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-09-24 17:11:33,978 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-09-24 17:11:34,153 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-09-24 17:11:34,463 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-09-24 17:11:35,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:11:35,402 INFO L93 Difference]: Finished difference Result 1690 states and 2458 transitions. [2020-09-24 17:11:35,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-09-24 17:11:35,405 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 139 [2020-09-24 17:11:35,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:11:35,435 INFO L225 Difference]: With dead ends: 1690 [2020-09-24 17:11:35,435 INFO L226 Difference]: Without dead ends: 1062 [2020-09-24 17:11:35,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1142 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=1263, Invalid=2769, Unknown=0, NotChecked=0, Total=4032 [2020-09-24 17:11:35,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2020-09-24 17:11:35,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 978. [2020-09-24 17:11:35,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 978 states. [2020-09-24 17:11:35,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1140 transitions. [2020-09-24 17:11:35,585 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1140 transitions. Word has length 139 [2020-09-24 17:11:35,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:11:35,586 INFO L479 AbstractCegarLoop]: Abstraction has 978 states and 1140 transitions. [2020-09-24 17:11:35,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-24 17:11:35,587 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1140 transitions. [2020-09-24 17:11:35,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 17:11:35,600 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:11:35,600 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:11:35,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:11:35,604 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:11:35,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:11:35,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1074396456, now seen corresponding path program 1 times [2020-09-24 17:11:35,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:11:35,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [867698447] [2020-09-24 17:11:35,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:11:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:11:35,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:11:35,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:11:35,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:11:37,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:11:37,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:11:37,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:11:38,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:11:40,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:11:40,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:11:46,467 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:11:46,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-24 17:11:46,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 17:11:46,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10804 [2020-09-24 17:11:46,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:11:46,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 17:11:46,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 17:11:46,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-24 17:11:46,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:11:46,931 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2020-09-24 17:11:47,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:11:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:11:47,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:11:47,822 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:11:47,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 17:11:47,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:11:47,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 17:11:47,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:11:47,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:11:47,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:11:47,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 17:11:47,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:11:47,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-24 17:11:47,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:11:47,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:11:47,985 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:11:47,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 17:11:47,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:11:47,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 17:11:47,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:11:47,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:11:47,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 17:11:47,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 17:11:47,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:11:48,396 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:11:48,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [867698447] [2020-09-24 17:11:48,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:11:48,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-09-24 17:11:48,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134948087] [2020-09-24 17:11:48,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-09-24 17:11:48,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:11:48,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-09-24 17:11:48,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=513, Unknown=0, NotChecked=0, Total=650 [2020-09-24 17:11:48,400 INFO L87 Difference]: Start difference. First operand 978 states and 1140 transitions. Second operand 26 states. [2020-09-24 17:11:49,250 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2020-09-24 17:11:49,508 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2020-09-24 17:11:49,965 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 91 [2020-09-24 17:11:50,661 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 88 [2020-09-24 17:11:51,005 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-09-24 17:11:51,425 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 90 [2020-09-24 17:11:52,195 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 90 [2020-09-24 17:11:52,427 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2020-09-24 17:11:52,606 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 43 [2020-09-24 17:11:52,985 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 90 [2020-09-24 17:11:53,769 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2020-09-24 17:11:54,299 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2020-09-24 17:11:54,620 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 84 [2020-09-24 17:11:55,070 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 89 [2020-09-24 17:11:55,307 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 40 [2020-09-24 17:11:55,598 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 81 [2020-09-24 17:11:56,081 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2020-09-24 17:11:56,615 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 89 [2020-09-24 17:11:56,885 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2020-09-24 17:11:57,242 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 88 [2020-09-24 17:11:57,693 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 83 [2020-09-24 17:11:57,882 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 36 [2020-09-24 17:11:58,227 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 83 [2020-09-24 17:11:58,713 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 87 [2020-09-24 17:11:59,039 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 83 [2020-09-24 17:11:59,369 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 84