/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.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 SequenceOfStatements --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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/reducercommutativity/max10-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:40:52,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:40:52,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:40:52,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:40:52,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:40:52,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:40:52,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:40:52,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:40:52,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:40:52,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:40:52,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:40:52,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:40:52,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:40:52,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:40:52,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:40:52,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:40:52,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:40:52,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:40:52,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:40:52,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:40:52,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:40:52,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:40:52,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:40:52,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:40:52,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:40:52,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:40:52,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:40:52,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:40:52,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:40:52,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:40:52,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:40:52,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:40:52,628 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:40:52,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:40:52,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:40:52,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:40:52,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:40:52,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:40:52,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:40:52,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:40:52,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:40:52,635 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 [2020-10-27 22:40:52,665 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:40:52,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:40:52,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:40:52,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:40:52,667 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:40:52,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:40:52,668 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:40:52,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:40:52,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:40:52,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:40:52,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:40:52,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:40:52,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:40:52,670 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:40:52,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:40:52,670 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:40:52,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:40:52,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:40:52,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:40:52,671 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:40:52,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:40:52,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:40:52,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:40:52,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:40:52,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:40:52,673 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:40:52,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:40:52,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:40:52,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:40:52,674 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:40:53,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:40:53,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:40:53,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:40:53,101 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:40:53,102 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:40:53,104 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/max10-1.i [2020-10-27 22:40:53,205 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bbf83f217/15a7234c63ce4dfbac2ab6c3f9704e52/FLAG1deb91205 [2020-10-27 22:40:53,798 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:40:53,799 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/reducercommutativity/max10-1.i [2020-10-27 22:40:53,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bbf83f217/15a7234c63ce4dfbac2ab6c3f9704e52/FLAG1deb91205 [2020-10-27 22:40:54,169 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bbf83f217/15a7234c63ce4dfbac2ab6c3f9704e52 [2020-10-27 22:40:54,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:40:54,189 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:40:54,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:40:54,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:40:54,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:40:54,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:40:54" (1/1) ... [2020-10-27 22:40:54,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ffe4bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:40:54, skipping insertion in model container [2020-10-27 22:40:54,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:40:54" (1/1) ... [2020-10-27 22:40:54,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:40:54,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:40:54,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:40:54,411 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:40:54,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:40:54,457 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:40:54,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:40:54 WrapperNode [2020-10-27 22:40:54,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:40:54,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:40:54,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:40:54,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:40:54,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:40:54" (1/1) ... [2020-10-27 22:40:54,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:40:54" (1/1) ... [2020-10-27 22:40:54,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:40:54" (1/1) ... [2020-10-27 22:40:54,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:40:54" (1/1) ... [2020-10-27 22:40:54,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:40:54" (1/1) ... [2020-10-27 22:40:54,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:40:54" (1/1) ... [2020-10-27 22:40:54,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:40:54" (1/1) ... [2020-10-27 22:40:54,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:40:54,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:40:54,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:40:54,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:40:54,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:40:54" (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 [2020-10-27 22:40:54,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:40:54,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:40:54,658 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:40:54,659 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2020-10-27 22:40:54,659 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:40:54,659 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:40:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:40:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 22:40:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 22:40:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:40:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:40:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 22:40:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure max [2020-10-27 22:40:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:40:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:40:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:40:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:40:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:40:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:40:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:40:55,057 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:40:55,058 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-27 22:40:55,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:40:55 BoogieIcfgContainer [2020-10-27 22:40:55,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:40:55,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:40:55,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:40:55,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:40:55,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:40:54" (1/3) ... [2020-10-27 22:40:55,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b074d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:40:55, skipping insertion in model container [2020-10-27 22:40:55,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:40:54" (2/3) ... [2020-10-27 22:40:55,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b074d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:40:55, skipping insertion in model container [2020-10-27 22:40:55,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:40:55" (3/3) ... [2020-10-27 22:40:55,072 INFO L111 eAbstractionObserver]: Analyzing ICFG max10-1.i [2020-10-27 22:40:55,089 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:40:55,098 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 22:40:55,134 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 22:40:55,193 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:40:55,193 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:40:55,193 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:40:55,193 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:40:55,194 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:40:55,194 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:40:55,194 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:40:55,194 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:40:55,214 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-10-27 22:40:55,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-27 22:40:55,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:40:55,223 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:40:55,223 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:40:55,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:40:55,230 INFO L82 PathProgramCache]: Analyzing trace with hash -122162658, now seen corresponding path program 1 times [2020-10-27 22:40:55,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:40:55,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182788496] [2020-10-27 22:40:55,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:40:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:55,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:55,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:55,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:55,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:55,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:56,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:57,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:57,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-27 22:40:57,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:40:57,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1719 [2020-10-27 22:40:57,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:57,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:40:57,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-27 22:40:57,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:40:57,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 22:40:57,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:40:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:57,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:57,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:57,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:40:57,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:57,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:40:57,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:57,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:40:57,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:57,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:40:57,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:40:57,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 22:40:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:57,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:57,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:57,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:57,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:40:57,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:40:57,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:40:57,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:57,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:40:57,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:40:57,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:40:57,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:40:57,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-27 22:40:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:57,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:57,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:57,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:57,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:40:57,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:40:57,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:40:57,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:57,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:40:57,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:40:57,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:40:57,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:57,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:40:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:57,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:57,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:57,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:40:57,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:57,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:40:57,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:57,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:40:57,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:40:57,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:40:57,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:40:57,294 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-27 22:40:57,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [182788496] [2020-10-27 22:40:57,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:40:57,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 22:40:57,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390207721] [2020-10-27 22:40:57,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-27 22:40:57,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:40:57,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-27 22:40:57,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 22:40:57,335 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2020-10-27 22:40:57,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:40:57,448 INFO L93 Difference]: Finished difference Result 64 states and 86 transitions. [2020-10-27 22:40:57,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 22:40:57,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-10-27 22:40:57,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:40:57,459 INFO L225 Difference]: With dead ends: 64 [2020-10-27 22:40:57,459 INFO L226 Difference]: Without dead ends: 30 [2020-10-27 22:40:57,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 22:40:57,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-27 22:40:57,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-27 22:40:57,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-27 22:40:57,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2020-10-27 22:40:57,520 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 34 [2020-10-27 22:40:57,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:40:57,521 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2020-10-27 22:40:57,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-27 22:40:57,521 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2020-10-27 22:40:57,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-27 22:40:57,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:40:57,524 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:40:57,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:40:57,524 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:40:57,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:40:57,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1084102031, now seen corresponding path program 1 times [2020-10-27 22:40:57,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:40:57,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [165687156] [2020-10-27 22:40:57,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:40:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:57,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:57,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:57,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:57,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:57,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:57,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:59,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:59,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-27 22:40:59,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:40:59,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1606 [2020-10-27 22:40:59,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:59,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:40:59,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-27 22:40:59,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:40:59,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:59,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:40:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:59,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:59,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:59,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:40:59,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:59,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:40:59,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:59,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:40:59,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:59,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:40:59,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:59,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 22:40:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:59,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:59,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:59,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:59,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:40:59,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:40:59,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:40:59,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:59,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:40:59,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:40:59,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:40:59,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:59,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-27 22:40:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:59,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:59,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:59,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:59,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:40:59,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:40:59,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:40:59,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:59,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:40:59,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:40:59,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:40:59,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:40:59,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 22:40:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:59,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:59,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:59,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:40:59,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:59,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:40:59,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:59,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:40:59,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:40:59,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:40:59,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:59,267 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-27 22:40:59,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [165687156] [2020-10-27 22:40:59,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:40:59,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:40:59,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985601981] [2020-10-27 22:40:59,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:40:59,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:40:59,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:40:59,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:40:59,281 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand 4 states. [2020-10-27 22:40:59,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:40:59,431 INFO L93 Difference]: Finished difference Result 55 states and 68 transitions. [2020-10-27 22:40:59,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 22:40:59,432 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-10-27 22:40:59,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:40:59,433 INFO L225 Difference]: With dead ends: 55 [2020-10-27 22:40:59,433 INFO L226 Difference]: Without dead ends: 34 [2020-10-27 22:40:59,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 22:40:59,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-27 22:40:59,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2020-10-27 22:40:59,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-27 22:40:59,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2020-10-27 22:40:59,445 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 34 [2020-10-27 22:40:59,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:40:59,445 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2020-10-27 22:40:59,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:40:59,446 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2020-10-27 22:40:59,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-27 22:40:59,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:40:59,447 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:40:59,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:40:59,448 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:40:59,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:40:59,449 INFO L82 PathProgramCache]: Analyzing trace with hash 548239116, now seen corresponding path program 1 times [2020-10-27 22:40:59,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:40:59,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281778474] [2020-10-27 22:40:59,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:40:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:59,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:59,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:59,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:59,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:59,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:02,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:02,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-27 22:41:02,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:41:02,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3473 [2020-10-27 22:41:02,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:02,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:41:02,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-27 22:41:02,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:41:02,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:03,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:41:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:03,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:03,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:03,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:41:03,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:03,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:41:03,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:03,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:03,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:03,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:03,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:41:03,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 22:41:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:03,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:03,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:03,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:03,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:41:03,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:03,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 22:41:03,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:03,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:41:03,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:41:03,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:41:03,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:03,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:41:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:03,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:03,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:03,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:03,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:41:03,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:03,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 22:41:03,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:03,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:41:03,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:41:03,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:41:03,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:41:03,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 22:41:03,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:03,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:03,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:03,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:41:03,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:03,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 22:41:03,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:03,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:41:03,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:41:03,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:41:03,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:03,168 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-10-27 22:41:03,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1281778474] [2020-10-27 22:41:03,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:41:03,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 22:41:03,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517486340] [2020-10-27 22:41:03,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 22:41:03,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:41:03,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 22:41:03,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 22:41:03,173 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand 5 states. [2020-10-27 22:41:03,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:41:03,404 INFO L93 Difference]: Finished difference Result 60 states and 74 transitions. [2020-10-27 22:41:03,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 22:41:03,404 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2020-10-27 22:41:03,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:41:03,406 INFO L225 Difference]: With dead ends: 60 [2020-10-27 22:41:03,406 INFO L226 Difference]: Without dead ends: 38 [2020-10-27 22:41:03,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-27 22:41:03,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-27 22:41:03,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2020-10-27 22:41:03,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-27 22:41:03,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2020-10-27 22:41:03,428 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 46 [2020-10-27 22:41:03,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:41:03,429 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2020-10-27 22:41:03,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 22:41:03,429 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2020-10-27 22:41:03,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-27 22:41:03,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:41:03,431 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:41:03,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:41:03,432 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:41:03,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:41:03,432 INFO L82 PathProgramCache]: Analyzing trace with hash 2055205671, now seen corresponding path program 2 times [2020-10-27 22:41:03,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:41:03,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121328144] [2020-10-27 22:41:03,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:41:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:03,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:03,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:03,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:03,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:03,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:05,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:08,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:08,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 22:41:08,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:41:08,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-27 22:41:08,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:08,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:41:08,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-27 22:41:08,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:41:08,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:41:08,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:41:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:08,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:08,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:08,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:41:08,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:08,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:41:08,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:08,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:08,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:08,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:08,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:41:08,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 22:41:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:08,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:08,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:08,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:08,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 22:41:08,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:08,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 22:41:08,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:08,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:41:08,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:41:08,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:41:08,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 22:41:08,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 22:41:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:08,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:08,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:08,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:08,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 22:41:08,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:08,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 22:41:08,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:08,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:41:08,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:41:08,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:41:08,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:08,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 22:41:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:08,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:08,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:08,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:08,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 22:41:08,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:08,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 22:41:08,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:08,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:08,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 22:41:08,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:08,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:08,748 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 6 proven. 66 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-27 22:41:08,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1121328144] [2020-10-27 22:41:08,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:41:08,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 22:41:08,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375709485] [2020-10-27 22:41:08,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 22:41:08,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:41:08,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 22:41:08,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 22:41:08,751 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand 7 states. [2020-10-27 22:41:08,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:41:08,993 INFO L93 Difference]: Finished difference Result 70 states and 87 transitions. [2020-10-27 22:41:08,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 22:41:08,993 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2020-10-27 22:41:08,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:41:08,995 INFO L225 Difference]: With dead ends: 70 [2020-10-27 22:41:08,996 INFO L226 Difference]: Without dead ends: 44 [2020-10-27 22:41:08,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-27 22:41:08,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-27 22:41:09,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2020-10-27 22:41:09,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-27 22:41:09,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2020-10-27 22:41:09,016 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 58 [2020-10-27 22:41:09,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:41:09,016 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2020-10-27 22:41:09,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 22:41:09,016 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2020-10-27 22:41:09,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-27 22:41:09,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:41:09,021 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:41:09,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:41:09,021 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:41:09,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:41:09,022 INFO L82 PathProgramCache]: Analyzing trace with hash 167781920, now seen corresponding path program 1 times [2020-10-27 22:41:09,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:41:09,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [634710297] [2020-10-27 22:41:09,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:41:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:09,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:09,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:09,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:09,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:09,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:12,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:12,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:14,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:14,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-27 22:41:14,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 22:41:14,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 22:41:14,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:14,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 22:41:14,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-27 22:41:14,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 22:41:14,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:14,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:41:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:14,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:14,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:14,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:41:14,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:14,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:41:14,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:14,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:14,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:14,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:14,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:14,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 22:41:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:14,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:14,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:14,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:14,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 22:41:14,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:14,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-27 22:41:14,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:14,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:41:14,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:41:14,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:41:14,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:14,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 22:41:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:14,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:14,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:14,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:14,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 22:41:14,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:14,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 22:41:14,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:14,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:41:14,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:41:14,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:41:14,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:14,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:41:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:14,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:14,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:14,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:14,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 22:41:14,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:14,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-27 22:41:14,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:14,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:41:14,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:41:14,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:41:14,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:14,566 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 45 proven. 91 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-10-27 22:41:14,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [634710297] [2020-10-27 22:41:14,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:41:14,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 22:41:14,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112244024] [2020-10-27 22:41:14,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 22:41:14,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:41:14,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 22:41:14,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-27 22:41:14,570 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand 9 states. [2020-10-27 22:41:14,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:41:14,869 INFO L93 Difference]: Finished difference Result 85 states and 106 transitions. [2020-10-27 22:41:14,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 22:41:14,870 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 72 [2020-10-27 22:41:14,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:41:14,871 INFO L225 Difference]: With dead ends: 85 [2020-10-27 22:41:14,871 INFO L226 Difference]: Without dead ends: 54 [2020-10-27 22:41:14,872 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-27 22:41:14,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-27 22:41:14,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 44. [2020-10-27 22:41:14,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-27 22:41:14,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2020-10-27 22:41:14,882 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 72 [2020-10-27 22:41:14,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:41:14,883 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2020-10-27 22:41:14,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 22:41:14,883 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2020-10-27 22:41:14,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-27 22:41:14,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:41:14,885 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:41:14,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:41:14,885 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:41:14,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:41:14,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1620937275, now seen corresponding path program 2 times [2020-10-27 22:41:14,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:41:14,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2050309909] [2020-10-27 22:41:14,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:41:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:14,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:14,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:14,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:14,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:15,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:19,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:19,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 22:41:19,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:41:19,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-27 22:41:19,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:19,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:41:19,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-27 22:41:19,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:41:19,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:19,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:41:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:19,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:19,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:19,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:41:19,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:19,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:41:19,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:19,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:19,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:19,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:19,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:19,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 22:41:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:19,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:19,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:20,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:20,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 22:41:20,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:20,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-27 22:41:20,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:20,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:41:20,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:41:20,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 22:41:20,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:20,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 22:41:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:20,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:20,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:20,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:20,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 22:41:20,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:20,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-27 22:41:20,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:20,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:41:20,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:41:20,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 22:41:20,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-10-27 22:41:20,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 22:41:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:20,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:20,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:20,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:20,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 22:41:20,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:20,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 22:41:20,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:20,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:20,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-27 22:41:20,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:20,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:20,289 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 28 proven. 237 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-10-27 22:41:20,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2050309909] [2020-10-27 22:41:20,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:41:20,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 22:41:20,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100902742] [2020-10-27 22:41:20,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 22:41:20,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:41:20,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 22:41:20,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-27 22:41:20,293 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand 10 states. [2020-10-27 22:41:20,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:41:20,665 INFO L93 Difference]: Finished difference Result 89 states and 110 transitions. [2020-10-27 22:41:20,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 22:41:20,666 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2020-10-27 22:41:20,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:41:20,667 INFO L225 Difference]: With dead ends: 89 [2020-10-27 22:41:20,667 INFO L226 Difference]: Without dead ends: 54 [2020-10-27 22:41:20,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-10-27 22:41:20,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-27 22:41:20,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2020-10-27 22:41:20,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-27 22:41:20,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2020-10-27 22:41:20,676 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 84 [2020-10-27 22:41:20,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:41:20,677 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2020-10-27 22:41:20,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 22:41:20,677 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2020-10-27 22:41:20,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-27 22:41:20,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:41:20,679 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:41:20,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 22:41:20,679 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:41:20,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:41:20,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1852266420, now seen corresponding path program 3 times [2020-10-27 22:41:20,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:41:20,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857506592] [2020-10-27 22:41:20,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:41:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:20,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:20,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:20,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:20,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:20,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:25,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:25,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-27 22:41:25,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:41:25,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 22:41:25,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:25,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:41:25,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-27 22:41:25,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:41:25,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:25,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:41:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:25,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:25,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:25,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:41:25,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:25,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:41:25,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:25,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:25,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:25,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:25,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:25,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 22:41:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:25,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:25,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:25,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:25,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 22:41:25,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:25,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-27 22:41:25,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:25,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:41:25,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:41:25,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 22:41:25,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:25,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 22:41:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:25,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:25,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:26,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:26,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 22:41:26,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:26,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-27 22:41:26,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:26,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:41:26,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:41:26,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 22:41:26,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:26,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 22:41:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:26,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:26,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:26,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:26,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 22:41:26,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:26,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-27 22:41:26,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:26,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:26,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-27 22:41:26,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:26,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:26,122 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 45 proven. 367 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-27 22:41:26,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [857506592] [2020-10-27 22:41:26,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:41:26,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 22:41:26,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040789030] [2020-10-27 22:41:26,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 22:41:26,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:41:26,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 22:41:26,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-27 22:41:26,126 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand 12 states. [2020-10-27 22:41:26,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:41:26,583 INFO L93 Difference]: Finished difference Result 101 states and 124 transitions. [2020-10-27 22:41:26,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 22:41:26,583 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 98 [2020-10-27 22:41:26,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:41:26,585 INFO L225 Difference]: With dead ends: 101 [2020-10-27 22:41:26,585 INFO L226 Difference]: Without dead ends: 60 [2020-10-27 22:41:26,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2020-10-27 22:41:26,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-27 22:41:26,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2020-10-27 22:41:26,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-27 22:41:26,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 66 transitions. [2020-10-27 22:41:26,597 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 66 transitions. Word has length 98 [2020-10-27 22:41:26,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:41:26,597 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 66 transitions. [2020-10-27 22:41:26,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 22:41:26,598 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2020-10-27 22:41:26,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-27 22:41:26,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:41:26,600 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:41:26,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 22:41:26,600 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:41:26,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:41:26,600 INFO L82 PathProgramCache]: Analyzing trace with hash 314844973, now seen corresponding path program 4 times [2020-10-27 22:41:26,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:41:26,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [94021901] [2020-10-27 22:41:26,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:41:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:26,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:26,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:26,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:26,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:26,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:31,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:31,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 22:41:31,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:41:31,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 22:41:31,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:31,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:41:31,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-27 22:41:31,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:41:31,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:31,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:41:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:31,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:31,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:31,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:41:31,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:31,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:41:31,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:31,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:31,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:31,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:31,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:31,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 22:41:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:31,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:31,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:31,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:31,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 22:41:31,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:31,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-27 22:41:31,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:31,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:41:31,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:41:31,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 22:41:31,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:31,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 22:41:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:31,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:31,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:32,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:32,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 22:41:32,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:32,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-27 22:41:32,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:32,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:41:32,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:41:32,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 22:41:32,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:32,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 22:41:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:32,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:32,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:32,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:32,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 22:41:32,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:32,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-27 22:41:32,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:32,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:32,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-27 22:41:32,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:32,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:32,243 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 66 proven. 527 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-10-27 22:41:32,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [94021901] [2020-10-27 22:41:32,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:41:32,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 22:41:32,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303021430] [2020-10-27 22:41:32,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 22:41:32,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:41:32,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 22:41:32,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-27 22:41:32,246 INFO L87 Difference]: Start difference. First operand 56 states and 66 transitions. Second operand 14 states. [2020-10-27 22:41:32,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:41:32,809 INFO L93 Difference]: Finished difference Result 113 states and 138 transitions. [2020-10-27 22:41:32,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 22:41:32,810 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 112 [2020-10-27 22:41:32,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:41:32,812 INFO L225 Difference]: With dead ends: 113 [2020-10-27 22:41:32,812 INFO L226 Difference]: Without dead ends: 66 [2020-10-27 22:41:32,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2020-10-27 22:41:32,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-27 22:41:32,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2020-10-27 22:41:32,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-27 22:41:32,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 73 transitions. [2020-10-27 22:41:32,822 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 73 transitions. Word has length 112 [2020-10-27 22:41:32,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:41:32,823 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 73 transitions. [2020-10-27 22:41:32,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 22:41:32,823 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 73 transitions. [2020-10-27 22:41:32,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-27 22:41:32,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:41:32,824 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:41:32,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 22:41:32,825 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:41:32,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:41:32,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1903585114, now seen corresponding path program 5 times [2020-10-27 22:41:32,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:41:32,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [459286289] [2020-10-27 22:41:32,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:41:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:32,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:32,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:32,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:32,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:32,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:37,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:37,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-27 22:41:37,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:41:37,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 22:41:37,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:37,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:41:37,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-27 22:41:37,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:41:37,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:37,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:41:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:37,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:37,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:37,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:41:37,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:37,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:41:37,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:37,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:37,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:37,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:37,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:37,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 22:41:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:37,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:37,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:38,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:38,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 22:41:38,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:38,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-27 22:41:38,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:38,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:41:38,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:41:38,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 22:41:38,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:38,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 22:41:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:38,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:38,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:38,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:38,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 22:41:38,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:38,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-27 22:41:38,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:38,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:41:38,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:41:38,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 22:41:38,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:38,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 22:41:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:38,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:38,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:38,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:38,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 22:41:38,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:38,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-27 22:41:38,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:38,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:38,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-27 22:41:38,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:38,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:38,391 INFO L134 CoverageAnalysis]: Checked inductivity of 934 backedges. 91 proven. 717 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-27 22:41:38,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [459286289] [2020-10-27 22:41:38,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:41:38,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-27 22:41:38,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868304787] [2020-10-27 22:41:38,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 22:41:38,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:41:38,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 22:41:38,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-27 22:41:38,394 INFO L87 Difference]: Start difference. First operand 62 states and 73 transitions. Second operand 16 states. [2020-10-27 22:41:39,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:41:39,097 INFO L93 Difference]: Finished difference Result 125 states and 152 transitions. [2020-10-27 22:41:39,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 22:41:39,098 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 126 [2020-10-27 22:41:39,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:41:39,101 INFO L225 Difference]: With dead ends: 125 [2020-10-27 22:41:39,102 INFO L226 Difference]: Without dead ends: 72 [2020-10-27 22:41:39,103 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2020-10-27 22:41:39,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-27 22:41:39,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2020-10-27 22:41:39,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-27 22:41:39,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 80 transitions. [2020-10-27 22:41:39,121 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 80 transitions. Word has length 126 [2020-10-27 22:41:39,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:41:39,121 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 80 transitions. [2020-10-27 22:41:39,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 22:41:39,121 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2020-10-27 22:41:39,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-27 22:41:39,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:41:39,124 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 5, 5, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:41:39,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 22:41:39,125 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:41:39,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:41:39,130 INFO L82 PathProgramCache]: Analyzing trace with hash 475352095, now seen corresponding path program 6 times [2020-10-27 22:41:39,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:41:39,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1146391221] [2020-10-27 22:41:39,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:41:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:39,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:39,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:39,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:39,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:39,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:44,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:44,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-27 22:41:44,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:41:44,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-27 22:41:44,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:44,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:41:44,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-27 22:41:44,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 22:41:44,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:44,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:41:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:44,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:44,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:44,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:41:44,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:44,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:41:44,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:44,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:44,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:44,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:44,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:44,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 22:41:44,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:44,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:44,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:44,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:44,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-27 22:41:44,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:44,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-27 22:41:44,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:44,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 22:41:44,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:41:44,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 22:41:44,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:44,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 22:41:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:44,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:44,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:44,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:44,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-27 22:41:44,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:44,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-27 22:41:44,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:44,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 22:41:44,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:41:44,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 22:41:44,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:44,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 22:41:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:44,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:44,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:45,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:45,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-27 22:41:45,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:45,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-10-27 22:41:45,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:45,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:45,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-27 22:41:45,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:45,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:45,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1216 backedges. 120 proven. 937 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2020-10-27 22:41:45,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1146391221] [2020-10-27 22:41:45,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:41:45,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-27 22:41:45,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414117723] [2020-10-27 22:41:45,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 22:41:45,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:41:45,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 22:41:45,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2020-10-27 22:41:45,070 INFO L87 Difference]: Start difference. First operand 68 states and 80 transitions. Second operand 18 states. [2020-10-27 22:41:45,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:41:45,712 INFO L93 Difference]: Finished difference Result 137 states and 166 transitions. [2020-10-27 22:41:45,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:41:45,712 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 140 [2020-10-27 22:41:45,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:41:45,714 INFO L225 Difference]: With dead ends: 137 [2020-10-27 22:41:45,714 INFO L226 Difference]: Without dead ends: 78 [2020-10-27 22:41:45,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=192, Invalid=510, Unknown=0, NotChecked=0, Total=702 [2020-10-27 22:41:45,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-27 22:41:45,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74. [2020-10-27 22:41:45,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-27 22:41:45,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 87 transitions. [2020-10-27 22:41:45,737 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 87 transitions. Word has length 140 [2020-10-27 22:41:45,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:41:45,738 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 87 transitions. [2020-10-27 22:41:45,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 22:41:45,738 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 87 transitions. [2020-10-27 22:41:45,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-27 22:41:45,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:41:45,740 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:41:45,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 22:41:45,741 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:41:45,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:41:45,746 INFO L82 PathProgramCache]: Analyzing trace with hash -2104696424, now seen corresponding path program 7 times [2020-10-27 22:41:45,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:41:45,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2055623086] [2020-10-27 22:41:45,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:41:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:45,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:45,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:45,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:45,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:46,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:50,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:50,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-27 22:41:50,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:41:50,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-27 22:41:50,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:50,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:41:50,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-27 22:41:50,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:41:50,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:50,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:41:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:50,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:50,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:50,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:41:50,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:50,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:41:50,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:50,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:50,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:50,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:50,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:50,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 22:41:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:50,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:50,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:51,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:51,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 22:41:51,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:51,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-27 22:41:51,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:51,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:41:51,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:41:51,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 22:41:51,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:51,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:41:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:51,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:51,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:51,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:51,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 22:41:51,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:51,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-27 22:41:51,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:51,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:41:51,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:41:51,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 22:41:51,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:51,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-27 22:41:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:51,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:51,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:51,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:51,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 22:41:51,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:41:51,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-27 22:41:51,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:51,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:51,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-27 22:41:51,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:51,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:51,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1536 backedges. 153 proven. 1187 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2020-10-27 22:41:51,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2055623086] [2020-10-27 22:41:51,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:41:51,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-27 22:41:51,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967777567] [2020-10-27 22:41:51,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-27 22:41:51,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:41:51,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-27 22:41:51,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-10-27 22:41:51,702 INFO L87 Difference]: Start difference. First operand 74 states and 87 transitions. Second operand 20 states. [2020-10-27 22:41:52,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:41:52,457 INFO L93 Difference]: Finished difference Result 146 states and 176 transitions. [2020-10-27 22:41:52,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-27 22:41:52,457 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 154 [2020-10-27 22:41:52,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:41:52,459 INFO L225 Difference]: With dead ends: 146 [2020-10-27 22:41:52,459 INFO L226 Difference]: Without dead ends: 81 [2020-10-27 22:41:52,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=233, Invalid=637, Unknown=0, NotChecked=0, Total=870 [2020-10-27 22:41:52,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-27 22:41:52,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2020-10-27 22:41:52,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-27 22:41:52,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 94 transitions. [2020-10-27 22:41:52,481 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 94 transitions. Word has length 154 [2020-10-27 22:41:52,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:41:52,481 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 94 transitions. [2020-10-27 22:41:52,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-27 22:41:52,481 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 94 transitions. [2020-10-27 22:41:52,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-27 22:41:52,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:41:52,484 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 7, 7, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:41:52,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 22:41:52,484 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:41:52,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:41:52,485 INFO L82 PathProgramCache]: Analyzing trace with hash 626915601, now seen corresponding path program 8 times [2020-10-27 22:41:52,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:41:52,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1343280084] [2020-10-27 22:41:52,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:41:52,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:52,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:52,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:52,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:52,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:53,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:56,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:57,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:57,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-27 22:41:57,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:41:57,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-27 22:41:57,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:57,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:41:57,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-27 22:41:57,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 22:41:57,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:57,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:41:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:57,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:57,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:57,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:41:57,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:57,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:41:57,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:57,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:57,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:57,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:57,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:57,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 22:41:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:57,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:57,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:57,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 22:41:57,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:57,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 22:41:57,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:57,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:57,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:57,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:57,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:57,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 22:41:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:57,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:57,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:57,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 22:41:57,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:57,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 22:41:57,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:57,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:57,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:57,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:57,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:57,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-27 22:41:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:57,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:57,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:57,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 22:41:57,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:57,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 22:41:57,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:57,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:57,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-27 22:41:57,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:57,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:57,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1894 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1845 trivial. 0 not checked. [2020-10-27 22:41:57,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1343280084] [2020-10-27 22:41:57,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:41:57,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-27 22:41:57,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540374315] [2020-10-27 22:41:57,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:41:57,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:41:57,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:41:57,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:41:57,801 INFO L87 Difference]: Start difference. First operand 80 states and 94 transitions. Second operand 11 states. [2020-10-27 22:41:57,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:41:57,985 INFO L93 Difference]: Finished difference Result 136 states and 161 transitions. [2020-10-27 22:41:57,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 22:41:57,986 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 168 [2020-10-27 22:41:57,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:41:57,989 INFO L225 Difference]: With dead ends: 136 [2020-10-27 22:41:57,989 INFO L226 Difference]: Without dead ends: 83 [2020-10-27 22:41:57,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:41:57,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-27 22:41:58,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2020-10-27 22:41:58,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-27 22:41:58,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 96 transitions. [2020-10-27 22:41:58,009 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 96 transitions. Word has length 168 [2020-10-27 22:41:58,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:41:58,009 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 96 transitions. [2020-10-27 22:41:58,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:41:58,010 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 96 transitions. [2020-10-27 22:41:58,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-27 22:41:58,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:41:58,013 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 8, 8, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:41:58,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 22:41:58,014 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:41:58,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:41:58,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1163608815, now seen corresponding path program 9 times [2020-10-27 22:41:58,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:41:58,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1459133515] [2020-10-27 22:41:58,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:41:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:58,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:58,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:58,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:58,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:58,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:03,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:03,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-27 22:42:03,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:42:03,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-27 22:42:03,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:03,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 22:42:03,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-27 22:42:03,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 22:42:03,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:03,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:42:03,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:03,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:03,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:03,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:42:03,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:03,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:42:03,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:03,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:42:03,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:03,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:42:03,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:03,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 22:42:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:03,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:03,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:03,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 22:42:03,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:03,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 22:42:03,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:03,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:42:03,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:03,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:42:03,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:03,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 22:42:03,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:03,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:03,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:03,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 22:42:03,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:03,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 22:42:03,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:03,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:42:03,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:03,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:42:03,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:03,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-27 22:42:03,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:03,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:03,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:03,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 22:42:03,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:03,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 22:42:03,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:03,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:42:03,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-27 22:42:03,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:42:03,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:03,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1909 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 1845 trivial. 0 not checked. [2020-10-27 22:42:03,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1459133515] [2020-10-27 22:42:03,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:42:03,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 22:42:03,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104946074] [2020-10-27 22:42:03,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 22:42:03,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:42:03,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 22:42:03,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-27 22:42:03,415 INFO L87 Difference]: Start difference. First operand 82 states and 96 transitions. Second operand 12 states. [2020-10-27 22:42:03,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:42:03,603 INFO L93 Difference]: Finished difference Result 137 states and 162 transitions. [2020-10-27 22:42:03,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 22:42:03,603 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 170 [2020-10-27 22:42:03,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:42:03,604 INFO L225 Difference]: With dead ends: 137 [2020-10-27 22:42:03,604 INFO L226 Difference]: Without dead ends: 84 [2020-10-27 22:42:03,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-27 22:42:03,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-27 22:42:03,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-10-27 22:42:03,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-27 22:42:03,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 98 transitions. [2020-10-27 22:42:03,618 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 98 transitions. Word has length 170 [2020-10-27 22:42:03,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:42:03,620 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 98 transitions. [2020-10-27 22:42:03,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 22:42:03,620 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 98 transitions. [2020-10-27 22:42:03,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-27 22:42:03,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:42:03,624 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 9, 9, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:42:03,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 22:42:03,624 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:42:03,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:42:03,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1529711949, now seen corresponding path program 10 times [2020-10-27 22:42:03,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:42:03,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1864529597] [2020-10-27 22:42:03,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:42:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:03,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:03,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:03,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:04,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:06,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:08,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:08,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-27 22:42:08,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:42:08,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-27 22:42:08,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:08,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 22:42:08,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 22:42:08,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-27 22:42:08,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:08,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:42:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:08,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:08,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:08,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:42:08,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:08,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:42:08,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:08,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:42:08,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:08,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:42:08,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:08,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 22:42:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:08,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:08,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:09,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:09,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 22:42:09,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:42:09,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-10-27 22:42:09,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:09,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:42:09,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:09,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-27 22:42:09,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:09,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 22:42:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:09,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:09,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:09,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:09,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 22:42:09,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:42:09,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 425 [2020-10-27 22:42:09,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:09,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 22:42:09,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:42:09,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 22:42:09,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:10,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-27 22:42:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:10,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:10,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:10,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 22:42:10,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:10,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 22:42:10,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:10,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:42:10,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-27 22:42:10,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:42:10,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:10,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1926 backedges. 0 proven. 1511 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2020-10-27 22:42:10,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1864529597] [2020-10-27 22:42:10,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:42:10,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-27 22:42:10,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694945721] [2020-10-27 22:42:10,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-27 22:42:10,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:42:10,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-27 22:42:10,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:42:10,446 INFO L87 Difference]: Start difference. First operand 84 states and 98 transitions. Second operand 25 states. [2020-10-27 22:42:13,073 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2020-10-27 22:42:18,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:42:18,317 INFO L93 Difference]: Finished difference Result 413 states and 527 transitions. [2020-10-27 22:42:18,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-10-27 22:42:18,317 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 172 [2020-10-27 22:42:18,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:42:18,321 INFO L225 Difference]: With dead ends: 413 [2020-10-27 22:42:18,322 INFO L226 Difference]: Without dead ends: 340 [2020-10-27 22:42:18,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1637 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=605, Invalid=5715, Unknown=0, NotChecked=0, Total=6320 [2020-10-27 22:42:18,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-10-27 22:42:18,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 303. [2020-10-27 22:42:18,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2020-10-27 22:42:18,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 377 transitions. [2020-10-27 22:42:18,375 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 377 transitions. Word has length 172 [2020-10-27 22:42:18,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:42:18,376 INFO L481 AbstractCegarLoop]: Abstraction has 303 states and 377 transitions. [2020-10-27 22:42:18,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-27 22:42:18,376 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 377 transitions. [2020-10-27 22:42:18,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-27 22:42:18,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:42:18,381 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 29, 9, 9, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:42:18,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 22:42:18,382 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:42:18,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:42:18,382 INFO L82 PathProgramCache]: Analyzing trace with hash -117650993, now seen corresponding path program 1 times [2020-10-27 22:42:18,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:42:18,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [920348386] [2020-10-27 22:42:18,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:42:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:18,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:18,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:26,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:26,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-27 22:42:26,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:42:26,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7761 [2020-10-27 22:42:26,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:26,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 57 [2020-10-27 22:42:26,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 22:42:26,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-27 22:42:26,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:43:27,271 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 30 [2020-10-27 22:43:27,633 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 35 [2020-10-27 22:43:28,134 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 37 [2020-10-27 22:43:28,487 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 41 [2020-10-27 22:43:29,030 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 41 [2020-10-27 22:43:29,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:43:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:43:29,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:43:29,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:43:29,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:43:29,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:43:29,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:43:29,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:43:29,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:43:29,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:43:29,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:43:29,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:43:29,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 22:43:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:43:29,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:43:29,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:43:29,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:43:30,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:43:30,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 22:43:30,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:43:30,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 806 [2020-10-27 22:43:30,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:43:30,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 22:43:30,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:43:30,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-27 22:43:30,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:43:30,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 22:43:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:43:31,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:43:31,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:43:31,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:43:31,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:43:31,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 22:43:31,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:43:31,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 420 [2020-10-27 22:43:31,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:43:31,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:43:31,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:43:31,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 22:43:31,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:43:31,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-27 22:43:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:43:31,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:43:31,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:43:32,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:43:33,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:43:34,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:43:34,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:43:34,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:43:34,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:43:35,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:43:35,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:43:36,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:43:36,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 22:43:36,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 22:43:36,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4660 [2020-10-27 22:43:36,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:43:36,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 22:43:36,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:43:36,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 22:43:36,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:43:39,237 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-10-27 22:43:39,505 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-10-27 22:43:39,795 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-10-27 22:43:40,085 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-10-27 22:43:40,378 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2020-10-27 22:43:40,690 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2020-10-27 22:43:40,998 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2020-10-27 22:43:41,322 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2020-10-27 22:43:41,680 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2020-10-27 22:43:41,991 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2020-10-27 22:43:42,286 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2020-10-27 22:43:42,586 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2020-10-27 22:43:42,941 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2020-10-27 22:43:43,297 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2020-10-27 22:43:43,670 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 67 [2020-10-27 22:43:44,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1926 backedges. 497 proven. 1230 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2020-10-27 22:43:44,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [920348386] [2020-10-27 22:43:44,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:43:44,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66] total 66 [2020-10-27 22:43:44,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324884327] [2020-10-27 22:43:44,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 66 states [2020-10-27 22:43:44,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:43:44,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2020-10-27 22:43:44,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=3990, Unknown=0, NotChecked=0, Total=4290 [2020-10-27 22:43:44,172 INFO L87 Difference]: Start difference. First operand 303 states and 377 transitions. Second operand 66 states. [2020-10-27 22:43:45,418 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 98 [2020-10-27 22:43:45,898 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-27 22:43:46,088 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-10-27 22:43:46,535 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2020-10-27 22:43:46,920 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 108 [2020-10-27 22:43:47,164 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 43 [2020-10-27 22:43:47,347 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 22:43:47,568 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2020-10-27 22:43:47,792 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 49 [2020-10-27 22:43:48,062 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2020-10-27 22:43:48,304 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2020-10-27 22:43:48,538 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 53 [2020-10-27 22:43:48,772 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 51 [2020-10-27 22:43:49,008 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-27 22:43:49,558 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2020-10-27 22:43:49,791 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-10-27 22:43:49,965 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-10-27 22:43:50,544 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-27 22:43:50,730 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2020-10-27 22:43:51,003 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 105 [2020-10-27 22:43:51,309 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-10-27 22:43:51,559 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-27 22:43:51,809 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2020-10-27 22:43:52,030 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2020-10-27 22:43:52,359 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2020-10-27 22:43:52,676 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 107 [2020-10-27 22:43:52,954 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2020-10-27 22:43:53,158 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-27 22:43:53,397 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-27 22:43:53,621 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-10-27 22:43:54,123 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2020-10-27 22:43:54,331 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-27 22:43:54,525 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-10-27 22:43:55,251 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2020-10-27 22:43:55,488 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2020-10-27 22:43:55,699 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-27 22:43:55,899 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2020-10-27 22:43:56,530 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2020-10-27 22:43:56,889 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2020-10-27 22:43:57,172 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-10-27 22:43:57,422 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2020-10-27 22:43:57,756 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-10-27 22:43:58,004 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-27 22:43:58,273 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2020-10-27 22:43:58,508 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2020-10-27 22:43:58,879 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2020-10-27 22:43:59,100 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-27 22:43:59,312 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-27 22:43:59,515 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-27 22:43:59,749 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2020-10-27 22:43:59,941 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-27 22:44:00,145 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-27 22:44:00,740 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2020-10-27 22:44:00,956 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-27 22:44:01,162 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-27 22:44:01,363 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-27 22:44:01,616 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2020-10-27 22:44:01,836 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-27 22:44:02,052 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-10-27 22:44:02,262 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-10-27 22:44:02,773 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 85 [2020-10-27 22:44:03,029 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-10-27 22:44:03,270 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-27 22:44:03,511 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2020-10-27 22:44:03,784 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2020-10-27 22:44:04,022 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2020-10-27 22:44:04,245 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-27 22:44:04,470 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2020-10-27 22:44:04,673 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 22:44:05,374 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 100 [2020-10-27 22:44:05,839 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2020-10-27 22:44:06,167 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2020-10-27 22:44:06,451 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2020-10-27 22:44:06,813 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-10-27 22:44:07,109 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-10-27 22:44:07,414 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-10-27 22:44:07,691 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2020-10-27 22:44:08,116 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2020-10-27 22:44:08,417 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2020-10-27 22:44:08,683 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-10-27 22:44:08,946 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2020-10-27 22:44:09,258 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-10-27 22:44:09,530 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-27 22:44:09,809 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2020-10-27 22:44:10,078 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2020-10-27 22:44:10,643 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2020-10-27 22:44:10,906 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2020-10-27 22:44:11,158 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2020-10-27 22:44:11,405 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-27 22:44:11,699 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-10-27 22:44:11,939 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-27 22:44:12,178 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-27 22:44:12,414 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-27 22:44:12,782 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2020-10-27 22:44:13,029 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-27 22:44:13,266 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-27 22:44:13,511 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-27 22:44:13,795 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2020-10-27 22:44:14,031 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-27 22:44:14,270 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-27 22:44:14,535 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-10-27 22:44:15,121 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2020-10-27 22:44:15,381 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2020-10-27 22:44:15,636 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-27 22:44:15,882 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-27 22:44:16,184 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2020-10-27 22:44:16,418 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-27 22:44:16,649 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-27 22:44:16,916 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-27 22:44:17,306 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2020-10-27 22:44:17,531 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-27 22:44:17,774 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-27 22:44:18,002 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-27 22:44:18,264 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2020-10-27 22:44:18,478 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-27 22:44:18,690 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-10-27 22:44:18,908 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-10-27 22:44:19,713 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 97 [2020-10-27 22:44:20,041 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2020-10-27 22:44:20,376 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-10-27 22:44:20,665 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-10-27 22:44:21,001 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2020-10-27 22:44:21,296 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-10-27 22:44:21,563 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-27 22:44:21,838 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2020-10-27 22:44:22,296 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 85 [2020-10-27 22:44:22,569 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-10-27 22:44:22,826 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-27 22:44:23,098 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2020-10-27 22:44:23,471 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2020-10-27 22:44:23,742 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2020-10-27 22:44:23,996 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-27 22:44:24,259 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2020-10-27 22:44:24,497 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 22:44:25,469 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 109 [2020-10-27 22:44:26,231 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 99 [2020-10-27 22:44:26,631 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77