/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=SHALLOWEST --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/seq-mthreaded/pals_lcr.5.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 04:26:57,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 04:26:57,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 04:26:57,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 04:26:57,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 04:26:57,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 04:26:57,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 04:26:57,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 04:26:57,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 04:26:57,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 04:26:57,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 04:26:57,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 04:26:57,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 04:26:57,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 04:26:57,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 04:26:57,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 04:26:57,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 04:26:57,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 04:26:57,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 04:26:57,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 04:26:57,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 04:26:57,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 04:26:57,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 04:26:57,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 04:26:57,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 04:26:57,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 04:26:57,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 04:26:57,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 04:26:57,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 04:26:57,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 04:26:57,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 04:26:57,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 04:26:57,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 04:26:57,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 04:26:57,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 04:26:57,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 04:26:57,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 04:26:57,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 04:26:57,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 04:26:57,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 04:26:57,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 04:26:57,449 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 04:26:57,493 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 04:26:57,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 04:26:57,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 04:26:57,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 04:26:57,496 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 04:26:57,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 04:26:57,496 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 04:26:57,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 04:26:57,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 04:26:57,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 04:26:57,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 04:26:57,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 04:26:57,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 04:26:57,498 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 04:26:57,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 04:26:57,498 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 04:26:57,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 04:26:57,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 04:26:57,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 04:26:57,499 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 04:26:57,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 04:26:57,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 04:26:57,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 04:26:57,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 04:26:57,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 04:26:57,500 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 04:26:57,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 04:26:57,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 04:26:57,501 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 04:26:57,501 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 04:26:57,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 04:26:57,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 04:26:57,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 04:26:57,907 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 04:26:57,908 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 04:26:57,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.1.ufo.UNBOUNDED.pals.c [2020-10-27 04:26:57,996 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee30a7668/e040b66116f145a38b5bc88ebe3ed3b0/FLAG02db7f18c [2020-10-27 04:26:58,675 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 04:26:58,676 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.1.ufo.UNBOUNDED.pals.c [2020-10-27 04:26:58,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee30a7668/e040b66116f145a38b5bc88ebe3ed3b0/FLAG02db7f18c [2020-10-27 04:26:58,994 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee30a7668/e040b66116f145a38b5bc88ebe3ed3b0 [2020-10-27 04:26:58,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 04:26:59,008 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 04:26:59,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 04:26:59,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 04:26:59,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 04:26:59,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:26:58" (1/1) ... [2020-10-27 04:26:59,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4116517d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:59, skipping insertion in model container [2020-10-27 04:26:59,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:26:58" (1/1) ... [2020-10-27 04:26:59,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 04:26:59,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 04:26:59,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:26:59,405 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 04:26:59,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:26:59,570 INFO L208 MainTranslator]: Completed translation [2020-10-27 04:26:59,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:59 WrapperNode [2020-10-27 04:26:59,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 04:26:59,572 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 04:26:59,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 04:26:59,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 04:26:59,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:59" (1/1) ... [2020-10-27 04:26:59,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:59" (1/1) ... [2020-10-27 04:26:59,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:59" (1/1) ... [2020-10-27 04:26:59,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:59" (1/1) ... [2020-10-27 04:26:59,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:59" (1/1) ... [2020-10-27 04:26:59,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:59" (1/1) ... [2020-10-27 04:26:59,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:59" (1/1) ... [2020-10-27 04:26:59,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 04:26:59,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 04:26:59,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 04:26:59,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 04:26:59,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:59" (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 04:26:59,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 04:26:59,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 04:26:59,745 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 04:26:59,746 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 04:26:59,747 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 04:26:59,747 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 04:26:59,747 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 04:26:59,747 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 04:26:59,748 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-27 04:26:59,748 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 04:26:59,749 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 04:26:59,749 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 04:26:59,750 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 04:26:59,750 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 04:26:59,750 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 04:26:59,751 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 04:26:59,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 04:26:59,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 04:26:59,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 04:26:59,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-27 04:26:59,753 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 04:26:59,753 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 04:26:59,753 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 04:26:59,753 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 04:26:59,753 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 04:26:59,754 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 04:26:59,754 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 04:26:59,754 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 04:26:59,754 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-27 04:26:59,754 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 04:26:59,755 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 04:26:59,755 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 04:26:59,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 04:26:59,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 04:26:59,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 04:26:59,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 04:26:59,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 04:26:59,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 04:27:00,827 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 04:27:00,827 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 04:27:00,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:27:00 BoogieIcfgContainer [2020-10-27 04:27:00,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 04:27:00,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 04:27:00,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 04:27:00,835 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 04:27:00,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 04:26:58" (1/3) ... [2020-10-27 04:27:00,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a89e730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:27:00, skipping insertion in model container [2020-10-27 04:27:00,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:59" (2/3) ... [2020-10-27 04:27:00,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a89e730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:27:00, skipping insertion in model container [2020-10-27 04:27:00,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:27:00" (3/3) ... [2020-10-27 04:27:00,839 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals.c [2020-10-27 04:27:00,852 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 04:27:00,858 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 04:27:00,873 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 04:27:00,930 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 04:27:00,931 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 04:27:00,931 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 04:27:00,931 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 04:27:00,931 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 04:27:00,932 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 04:27:00,932 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 04:27:00,932 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 04:27:00,956 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states. [2020-10-27 04:27:00,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 04:27:00,966 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:27:00,967 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:27:00,968 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:27:00,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:27:00,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1494883357, now seen corresponding path program 1 times [2020-10-27 04:27:00,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:27:00,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [416482351] [2020-10-27 04:27:00,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:27:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:01,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:01,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:01,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-27 04:27:01,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:01,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 437 [2020-10-27 04:27:01,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:01,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:01,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 04:27:01,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:01,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 04:27:02,069 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:27:02,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:27:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:02,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:02,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:02,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:27:02,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:02,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-27 04:27:02,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:02,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:02,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:02,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:02,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 04:27:02,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:27:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:02,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:02,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:02,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:27:02,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:02,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 04:27:02,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:02,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:02,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:02,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:02,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:02,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 04:27:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:02,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:02,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:02,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:27:02,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:02,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-27 04:27:02,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:02,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:02,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 04:27:02,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:02,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:02,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 04:27:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:02,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:02,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:02,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:02,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:02,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:27:02,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:02,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:02,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:27:02,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:02,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:02,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 04:27:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:02,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:02,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:02,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:02,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:02,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:27:02,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:02,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:02,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:27:02,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:02,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:02,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 04:27:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:02,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:02,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:02,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:02,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:02,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:27:02,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:02,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:02,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:27:02,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:02,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:02,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 04:27:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:02,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:02,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:02,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:02,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:02,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:27:02,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:02,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:02,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:27:02,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:02,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:02,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 04:27:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:02,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:02,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:02,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:02,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:02,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:27:02,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:02,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:02,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:27:02,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:02,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:02,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 04:27:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:02,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:02,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:02,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:27:02,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:02,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:27:02,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:02,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:02,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:27:02,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:02,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:02,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:27:02,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [416482351] [2020-10-27 04:27:02,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:27:02,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 04:27:02,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838434896] [2020-10-27 04:27:02,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 04:27:02,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:27:02,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 04:27:02,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-27 04:27:02,667 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 8 states. [2020-10-27 04:27:04,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:27:04,001 INFO L93 Difference]: Finished difference Result 217 states and 318 transitions. [2020-10-27 04:27:04,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 04:27:04,003 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-10-27 04:27:04,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:27:04,016 INFO L225 Difference]: With dead ends: 217 [2020-10-27 04:27:04,016 INFO L226 Difference]: Without dead ends: 128 [2020-10-27 04:27:04,020 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-27 04:27:04,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-27 04:27:04,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 127. [2020-10-27 04:27:04,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-27 04:27:04,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 189 transitions. [2020-10-27 04:27:04,085 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 189 transitions. Word has length 68 [2020-10-27 04:27:04,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:27:04,087 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 189 transitions. [2020-10-27 04:27:04,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 04:27:04,087 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 189 transitions. [2020-10-27 04:27:04,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 04:27:04,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:27:04,095 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:27:04,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 04:27:04,095 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:27:04,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:27:04,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1938784031, now seen corresponding path program 1 times [2020-10-27 04:27:04,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:27:04,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1061780640] [2020-10-27 04:27:04,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:27:04,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:04,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:04,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:04,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-27 04:27:04,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:04,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 802 [2020-10-27 04:27:04,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:04,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:27:04,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 04:27:04,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 04:27:04,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:05,246 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:27:05,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:27:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:05,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:05,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:05,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:27:05,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:05,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 04:27:05,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:05,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:05,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:05,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:05,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:27:05,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:27:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:05,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:05,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:05,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:27:05,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:05,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 04:27:05,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:05,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:05,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:05,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:27:05,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:05,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 04:27:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:05,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:05,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:05,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:27:05,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:05,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:27:05,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:05,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:05,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:27:05,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:27:05,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 04:27:05,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 04:27:05,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:05,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:05,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:05,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:05,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:05,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:27:05,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:05,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:05,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:27:05,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:05,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:05,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 04:27:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:05,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:05,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:05,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:05,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:05,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:27:05,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:05,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:05,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:27:05,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:05,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:05,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 04:27:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:05,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:05,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:05,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:05,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:05,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:27:05,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:05,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:05,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:27:05,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:05,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:05,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 04:27:05,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:05,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:05,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:05,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:05,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:05,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:27:05,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:05,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:05,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:27:05,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:05,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:05,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 04:27:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:05,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:05,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:05,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:05,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:05,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:27:05,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:05,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:05,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:27:05,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:05,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:05,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 04:27:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:05,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:05,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:05,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:27:05,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:05,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:27:05,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:05,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:05,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:27:05,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:05,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:05,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:27:05,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1061780640] [2020-10-27 04:27:05,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:27:05,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 04:27:05,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787806427] [2020-10-27 04:27:05,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 04:27:05,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:27:05,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 04:27:05,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-27 04:27:05,691 INFO L87 Difference]: Start difference. First operand 127 states and 189 transitions. Second operand 14 states. [2020-10-27 04:27:06,060 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:27:06,327 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 04:27:06,697 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 04:27:06,968 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-27 04:27:08,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:27:08,896 INFO L93 Difference]: Finished difference Result 212 states and 306 transitions. [2020-10-27 04:27:08,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 04:27:08,898 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 68 [2020-10-27 04:27:08,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:27:08,905 INFO L225 Difference]: With dead ends: 212 [2020-10-27 04:27:08,906 INFO L226 Difference]: Without dead ends: 128 [2020-10-27 04:27:08,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:27:08,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-27 04:27:08,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 127. [2020-10-27 04:27:08,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-27 04:27:08,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 158 transitions. [2020-10-27 04:27:08,957 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 158 transitions. Word has length 68 [2020-10-27 04:27:08,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:27:08,962 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 158 transitions. [2020-10-27 04:27:08,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 04:27:08,962 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 158 transitions. [2020-10-27 04:27:08,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-27 04:27:08,970 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:27:08,970 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:27:08,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 04:27:08,971 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:27:08,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:27:08,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1276082680, now seen corresponding path program 1 times [2020-10-27 04:27:08,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:27:08,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1982004111] [2020-10-27 04:27:08,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:27:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:09,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:09,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:09,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:14,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:14,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-27 04:27:14,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:27:14,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-27 04:27:14,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:14,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 04:27:14,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 04:27:14,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-27 04:27:14,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:27:14,384 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:27:14,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:27:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:14,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:14,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:14,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:27:14,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:14,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:27:14,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:14,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:14,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:14,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:14,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:14,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:27:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:14,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:14,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:14,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:27:14,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:14,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-27 04:27:14,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:14,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:27:14,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:14,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 04:27:14,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:14,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:27:14,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:14,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:14,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:14,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:27:14,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:14,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:27:14,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:14,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:14,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:14,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:27:14,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:14,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:27:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:14,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:14,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:14,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:14,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:14,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 04:27:14,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:14,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:14,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:14,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:14,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:14,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:27:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:14,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:14,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:14,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:14,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:14,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 04:27:14,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:14,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:14,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:14,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:14,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:14,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:27:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:14,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:14,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:14,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:14,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:14,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 04:27:14,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:14,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:14,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:14,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:14,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:14,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 04:27:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:14,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:14,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:14,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:14,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:14,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 04:27:14,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:14,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:14,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:14,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:14,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:14,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 04:27:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:15,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:15,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:15,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:15,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:15,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 04:27:15,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:15,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:15,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:15,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:15,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:15,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 04:27:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:15,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:15,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:15,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:27:15,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:15,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:27:15,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:15,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:15,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 04:27:15,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 04:27:15,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:15,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:27:15,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1982004111] [2020-10-27 04:27:15,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:27:15,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-27 04:27:15,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096751862] [2020-10-27 04:27:15,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 04:27:15,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:27:15,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 04:27:15,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2020-10-27 04:27:15,129 INFO L87 Difference]: Start difference. First operand 127 states and 158 transitions. Second operand 19 states. [2020-10-27 04:27:15,768 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 156 [2020-10-27 04:27:16,052 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 04:27:16,319 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:27:16,591 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-27 04:27:16,876 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 04:27:17,282 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2020-10-27 04:27:17,682 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-10-27 04:27:18,316 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-10-27 04:27:19,243 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-10-27 04:27:20,418 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-10-27 04:27:22,063 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 04:27:22,349 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 04:27:22,599 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 04:27:22,846 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-27 04:27:23,127 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 04:27:27,758 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 04:27:30,534 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 04:27:31,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:27:31,888 INFO L93 Difference]: Finished difference Result 1033 states and 1434 transitions. [2020-10-27 04:27:31,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2020-10-27 04:27:31,889 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 98 [2020-10-27 04:27:31,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:27:31,903 INFO L225 Difference]: With dead ends: 1033 [2020-10-27 04:27:31,904 INFO L226 Difference]: Without dead ends: 955 [2020-10-27 04:27:31,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4079 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=2092, Invalid=9464, Unknown=0, NotChecked=0, Total=11556 [2020-10-27 04:27:31,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2020-10-27 04:27:32,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 914. [2020-10-27 04:27:32,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 914 states. [2020-10-27 04:27:32,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1280 transitions. [2020-10-27 04:27:32,108 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1280 transitions. Word has length 98 [2020-10-27 04:27:32,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:27:32,109 INFO L481 AbstractCegarLoop]: Abstraction has 914 states and 1280 transitions. [2020-10-27 04:27:32,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 04:27:32,109 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1280 transitions. [2020-10-27 04:27:32,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 04:27:32,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:27:32,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:27:32,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 04:27:32,123 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:27:32,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:27:32,124 INFO L82 PathProgramCache]: Analyzing trace with hash -870746376, now seen corresponding path program 1 times [2020-10-27 04:27:32,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:27:32,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [902556478] [2020-10-27 04:27:32,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:27:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:32,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:32,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:32,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:32,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:37,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:37,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:37,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 04:27:37,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:27:37,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-27 04:27:37,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:37,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:37,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 04:27:37,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-27 04:27:37,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:37,488 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:27:37,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:27:37,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:37,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:37,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:37,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:27:37,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:37,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:27:37,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:37,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:37,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:37,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:37,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:37,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:27:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:37,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:37,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:37,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:27:37,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:37,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:27:37,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:37,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:37,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:37,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 04:27:37,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:37,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:27:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:37,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:37,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:37,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:27:37,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:37,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:27:37,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:37,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:37,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:37,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:27:37,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:37,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:27:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:37,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:37,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:37,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:37,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:37,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 04:27:37,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:37,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:37,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:37,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:37,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:27:37,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:27:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:37,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:37,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:37,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:37,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:37,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:27:37,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:37,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:37,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:37,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:27:37,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:37,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:27:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:37,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:37,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:37,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:37,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:37,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:27:37,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:37,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:37,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:37,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:27:37,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:37,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 04:27:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:37,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:37,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:37,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:37,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:37,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:27:37,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:37,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:37,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:37,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:27:37,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:37,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 04:27:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:37,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:37,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:37,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:37,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:37,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:27:37,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:37,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:37,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:37,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:27:37,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:37,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 04:27:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:37,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:37,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:37,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:37,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:27:37,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:27:37,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:27:37,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:37,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:37,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 04:27:37,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 04:27:37,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:37,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:27:37,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [902556478] [2020-10-27 04:27:37,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:27:37,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 04:27:37,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47713408] [2020-10-27 04:27:37,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 04:27:37,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:27:37,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 04:27:37,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 04:27:37,865 INFO L87 Difference]: Start difference. First operand 914 states and 1280 transitions. Second operand 11 states. [2020-10-27 04:27:38,143 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:27:40,216 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-27 04:27:41,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:27:41,859 INFO L93 Difference]: Finished difference Result 3273 states and 4661 transitions. [2020-10-27 04:27:41,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 04:27:41,860 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-10-27 04:27:41,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:27:41,879 INFO L225 Difference]: With dead ends: 3273 [2020-10-27 04:27:41,879 INFO L226 Difference]: Without dead ends: 2408 [2020-10-27 04:27:41,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2020-10-27 04:27:41,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2408 states. [2020-10-27 04:27:42,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2408 to 2360. [2020-10-27 04:27:42,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2360 states. [2020-10-27 04:27:42,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2360 states to 2360 states and 3306 transitions. [2020-10-27 04:27:42,128 INFO L78 Accepts]: Start accepts. Automaton has 2360 states and 3306 transitions. Word has length 100 [2020-10-27 04:27:42,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:27:42,129 INFO L481 AbstractCegarLoop]: Abstraction has 2360 states and 3306 transitions. [2020-10-27 04:27:42,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 04:27:42,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2360 states and 3306 transitions. [2020-10-27 04:27:42,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 04:27:42,132 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:27:42,133 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:27:42,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 04:27:42,133 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:27:42,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:27:42,134 INFO L82 PathProgramCache]: Analyzing trace with hash -2134816848, now seen corresponding path program 1 times [2020-10-27 04:27:42,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:27:42,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823087648] [2020-10-27 04:27:42,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:27:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:42,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:42,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:42,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:46,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:46,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 04:27:46,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:27:46,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4097 [2020-10-27 04:27:46,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:46,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 04:27:46,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 04:27:46,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:27:46,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:27:46,581 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:27:46,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:27:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:46,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:46,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:46,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:27:46,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:46,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 04:27:46,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:46,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:46,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:46,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:46,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:46,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:27:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:46,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:46,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:46,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:27:46,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:46,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 04:27:46,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:46,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:27:46,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:46,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 04:27:46,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:46,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:27:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:46,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:46,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:46,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:27:46,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:46,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:27:46,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:46,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:46,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:46,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:27:46,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:46,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:27:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:46,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:46,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:46,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:46,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:46,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 04:27:46,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:46,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:46,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:46,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:46,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:46,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:27:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:46,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:46,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:46,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:46,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:46,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 04:27:46,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:46,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:46,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:46,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:46,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:46,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:27:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:46,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:46,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:46,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:46,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:46,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:27:46,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:46,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:46,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:46,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:46,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:47,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 04:27:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:47,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:47,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:47,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:47,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:47,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:27:47,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:47,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:47,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:47,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:47,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:47,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 04:27:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:47,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:47,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:47,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:47,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:47,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:27:47,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:47,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:47,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:47,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:47,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:47,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 04:27:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:47,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:47,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:47,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:27:47,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:47,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:27:47,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:47,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:47,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 04:27:47,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 04:27:47,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:47,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:27:47,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823087648] [2020-10-27 04:27:47,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:27:47,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-27 04:27:47,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858370565] [2020-10-27 04:27:47,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 04:27:47,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:27:47,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 04:27:47,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2020-10-27 04:27:47,330 INFO L87 Difference]: Start difference. First operand 2360 states and 3306 transitions. Second operand 19 states. [2020-10-27 04:27:47,638 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-27 04:27:47,887 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-27 04:27:48,126 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 04:27:48,373 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:27:48,625 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-27 04:27:49,542 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 04:27:50,371 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-27 04:27:51,695 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 04:27:51,967 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 04:27:53,515 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-27 04:27:53,880 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 04:27:55,868 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-27 04:28:02,920 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 04:28:03,995 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 04:28:18,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:28:18,591 INFO L93 Difference]: Finished difference Result 7889 states and 13373 transitions. [2020-10-27 04:28:18,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2020-10-27 04:28:18,592 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 100 [2020-10-27 04:28:18,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:28:18,650 INFO L225 Difference]: With dead ends: 7889 [2020-10-27 04:28:18,650 INFO L226 Difference]: Without dead ends: 5578 [2020-10-27 04:28:18,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10194 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=4636, Invalid=17714, Unknown=0, NotChecked=0, Total=22350 [2020-10-27 04:28:18,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5578 states. [2020-10-27 04:28:19,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5578 to 3166. [2020-10-27 04:28:19,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3166 states. [2020-10-27 04:28:19,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 4475 transitions. [2020-10-27 04:28:19,223 INFO L78 Accepts]: Start accepts. Automaton has 3166 states and 4475 transitions. Word has length 100 [2020-10-27 04:28:19,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:28:19,223 INFO L481 AbstractCegarLoop]: Abstraction has 3166 states and 4475 transitions. [2020-10-27 04:28:19,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 04:28:19,223 INFO L276 IsEmpty]: Start isEmpty. Operand 3166 states and 4475 transitions. [2020-10-27 04:28:19,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 04:28:19,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:28:19,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:28:19,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 04:28:19,227 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:28:19,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:28:19,228 INFO L82 PathProgramCache]: Analyzing trace with hash 597567454, now seen corresponding path program 1 times [2020-10-27 04:28:19,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:28:19,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [572047328] [2020-10-27 04:28:19,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:28:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:19,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:19,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:19,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:19,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:22,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:24,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:24,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 04:28:24,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:28:24,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 04:28:24,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:24,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:28:24,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 04:28:24,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-27 04:28:24,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:24,566 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:28:24,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:28:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:24,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:24,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:24,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:28:24,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:24,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 04:28:24,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:24,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:24,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:24,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 04:28:24,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:24,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:28:24,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:24,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:24,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:24,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:28:24,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:24,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 04:28:24,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:28:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 04:28:24,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:24,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:28:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:24,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:24,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:24,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:28:24,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:24,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:28:24,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:24,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:24,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:24,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:28:24,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:24,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:28:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:24,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:24,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:24,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:24,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:24,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:28:24,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:24,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:24,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:24,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:28:24,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:24,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:28:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:24,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:24,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:24,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:24,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:24,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:28:24,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:24,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:24,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:24,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:28:24,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:24,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:28:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:24,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:24,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:24,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:24,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:24,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:28:24,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:24,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:24,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:24,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:28:24,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 54 [2020-10-27 04:28:24,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 04:28:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:24,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:24,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:24,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:24,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:24,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:28:24,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:24,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:24,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:24,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:28:24,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:24,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 04:28:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:24,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:25,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:25,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:28:25,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:25,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 04:28:25,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:25,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:28:25,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:28:25,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 04:28:25,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:25,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 04:28:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:25,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:25,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:25,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:28:25,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:25,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:28:25,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:25,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:28:25,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:28:25,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:28:25,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:25,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:28:25,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [572047328] [2020-10-27 04:28:25,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:28:25,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 04:28:25,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96249394] [2020-10-27 04:28:25,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 04:28:25,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:28:25,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 04:28:25,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-27 04:28:25,100 INFO L87 Difference]: Start difference. First operand 3166 states and 4475 transitions. Second operand 15 states. [2020-10-27 04:28:25,620 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-27 04:28:25,862 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:28:26,711 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-27 04:28:26,897 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-27 04:28:27,156 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:28:27,438 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:28:27,725 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:28:28,368 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-27 04:28:28,591 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-27 04:28:29,108 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2020-10-27 04:28:29,371 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:28:29,621 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:28:29,867 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:28:30,164 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-27 04:28:30,391 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-10-27 04:28:30,610 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-27 04:28:30,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:28:30,781 INFO L93 Difference]: Finished difference Result 6921 states and 9727 transitions. [2020-10-27 04:28:30,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 04:28:30,781 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 100 [2020-10-27 04:28:30,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:28:30,802 INFO L225 Difference]: With dead ends: 6921 [2020-10-27 04:28:30,802 INFO L226 Difference]: Without dead ends: 3804 [2020-10-27 04:28:30,811 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=326, Invalid=864, Unknown=0, NotChecked=0, Total=1190 [2020-10-27 04:28:30,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3804 states. [2020-10-27 04:28:31,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3804 to 3565. [2020-10-27 04:28:31,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3565 states. [2020-10-27 04:28:31,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3565 states to 3565 states and 5020 transitions. [2020-10-27 04:28:31,210 INFO L78 Accepts]: Start accepts. Automaton has 3565 states and 5020 transitions. Word has length 100 [2020-10-27 04:28:31,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:28:31,211 INFO L481 AbstractCegarLoop]: Abstraction has 3565 states and 5020 transitions. [2020-10-27 04:28:31,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 04:28:31,211 INFO L276 IsEmpty]: Start isEmpty. Operand 3565 states and 5020 transitions. [2020-10-27 04:28:31,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 04:28:31,214 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:28:31,214 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:28:31,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 04:28:31,215 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:28:31,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:28:31,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1673949970, now seen corresponding path program 1 times [2020-10-27 04:28:31,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:28:31,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1232697228] [2020-10-27 04:28:31,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:28:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:31,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:31,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:31,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:32,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:33,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:36,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:36,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 04:28:36,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:28:36,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-27 04:28:36,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:36,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:28:36,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 04:28:36,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-27 04:28:36,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:36,566 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:28:36,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:28:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:36,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:36,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:36,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:28:36,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:36,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 04:28:36,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:36,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:36,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:36,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 04:28:36,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:36,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:28:36,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:36,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:36,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:36,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:28:36,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:36,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 04:28:36,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:36,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:28:36,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:36,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 04:28:36,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:36,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:28:36,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:36,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:36,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:36,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:28:36,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:36,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:28:36,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:36,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:36,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:36,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:28:36,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:36,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:28:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:36,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:36,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:36,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:36,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:36,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:28:36,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:36,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:36,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:36,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:28:36,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:36,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:28:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:36,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:36,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:36,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:36,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:36,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:28:36,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:28:36,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:36,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:28:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:36,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:36,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:36,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:36,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:36,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:28:36,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:36,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:36,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:36,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:28:36,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:36,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 04:28:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:36,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:36,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:36,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:28:36,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:36,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:28:36,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:36,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:28:36,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:28:36,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 04:28:36,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:36,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 04:28:36,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:36,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:36,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:36,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:36,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:36,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:28:36,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:36,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:28:36,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:28:36,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:28:36,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:36,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 04:28:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:36,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:36,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:36,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:28:36,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:36,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:28:36,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:36,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:28:36,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:28:36,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:28:36,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:36,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:28:36,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1232697228] [2020-10-27 04:28:36,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:28:36,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 04:28:36,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487094357] [2020-10-27 04:28:36,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 04:28:36,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:28:36,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 04:28:36,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-27 04:28:36,995 INFO L87 Difference]: Start difference. First operand 3565 states and 5020 transitions. Second operand 15 states. [2020-10-27 04:28:37,513 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-27 04:28:37,765 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:28:38,551 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-27 04:28:38,740 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-27 04:28:38,995 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:28:39,268 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:28:39,897 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-27 04:28:40,113 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-27 04:28:40,349 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:28:40,878 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2020-10-27 04:28:41,123 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:28:41,374 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:28:41,647 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-27 04:28:41,853 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-10-27 04:28:42,040 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-27 04:28:42,318 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:28:42,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:28:42,625 INFO L93 Difference]: Finished difference Result 7627 states and 10659 transitions. [2020-10-27 04:28:42,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 04:28:42,626 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 100 [2020-10-27 04:28:42,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:28:42,648 INFO L225 Difference]: With dead ends: 7627 [2020-10-27 04:28:42,648 INFO L226 Difference]: Without dead ends: 4313 [2020-10-27 04:28:42,658 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=326, Invalid=864, Unknown=0, NotChecked=0, Total=1190 [2020-10-27 04:28:42,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4313 states. [2020-10-27 04:28:43,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4313 to 3782. [2020-10-27 04:28:43,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3782 states. [2020-10-27 04:28:43,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3782 states to 3782 states and 5311 transitions. [2020-10-27 04:28:43,072 INFO L78 Accepts]: Start accepts. Automaton has 3782 states and 5311 transitions. Word has length 100 [2020-10-27 04:28:43,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:28:43,072 INFO L481 AbstractCegarLoop]: Abstraction has 3782 states and 5311 transitions. [2020-10-27 04:28:43,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 04:28:43,072 INFO L276 IsEmpty]: Start isEmpty. Operand 3782 states and 5311 transitions. [2020-10-27 04:28:43,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 04:28:43,075 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:28:43,075 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:28:43,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 04:28:43,075 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:28:43,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:28:43,076 INFO L82 PathProgramCache]: Analyzing trace with hash 908859604, now seen corresponding path program 1 times [2020-10-27 04:28:43,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:28:43,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1041115315] [2020-10-27 04:28:43,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:28:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:43,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:43,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:43,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:43,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:45,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:45,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:48,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:48,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 04:28:48,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 04:28:48,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-27 04:28:48,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:48,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:28:48,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 04:28:48,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-27 04:28:48,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:48,484 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:28:48,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:28:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:48,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:48,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:48,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:28:48,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:48,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 04:28:48,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:48,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:48,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:48,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 04:28:48,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:48,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:28:48,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:48,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:48,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:48,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:28:48,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:48,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 04:28:48,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:48,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:28:48,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:48,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 04:28:48,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:48,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:28:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:48,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:48,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:48,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:28:48,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:48,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:28:48,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:48,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:48,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:48,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:28:48,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:48,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:28:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:48,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:48,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:48,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:48,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:48,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:28:48,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:48,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:48,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:48,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:28:48,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:48,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:28:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:48,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:48,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:48,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:48,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:48,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:28:48,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:48,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:48,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:48,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:28:48,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:48,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:28:48,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:48,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:48,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:48,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:28:48,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:48,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:28:48,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:48,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:28:48,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:28:48,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 04:28:48,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:48,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 04:28:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:48,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:48,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:48,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:48,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:48,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:28:48,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:48,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:28:48,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:28:48,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:28:48,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:48,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 04:28:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:48,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:48,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:48,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:48,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:48,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:28:48,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:48,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:28:48,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:28:48,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:28:48,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:48,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 04:28:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:48,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:48,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:48,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:28:48,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:48,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:28:48,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:48,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:28:48,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:28:48,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:28:48,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:48,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:28:48,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1041115315] [2020-10-27 04:28:48,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:28:48,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 04:28:48,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465639889] [2020-10-27 04:28:48,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 04:28:48,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:28:48,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 04:28:48,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-27 04:28:48,931 INFO L87 Difference]: Start difference. First operand 3782 states and 5311 transitions. Second operand 15 states. [2020-10-27 04:28:49,456 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-27 04:28:49,719 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:28:50,584 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-27 04:28:50,787 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-27 04:28:51,069 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:28:51,706 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-27 04:28:51,939 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-27 04:28:52,171 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:28:52,434 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:28:52,908 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2020-10-27 04:28:53,158 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:28:53,425 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-27 04:28:53,617 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-10-27 04:28:53,822 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-27 04:28:54,110 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:28:54,428 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:28:54,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:28:54,793 INFO L93 Difference]: Finished difference Result 8939 states and 12518 transitions. [2020-10-27 04:28:54,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 04:28:54,794 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 100 [2020-10-27 04:28:54,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:28:54,821 INFO L225 Difference]: With dead ends: 8939 [2020-10-27 04:28:54,822 INFO L226 Difference]: Without dead ends: 5303 [2020-10-27 04:28:54,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=326, Invalid=864, Unknown=0, NotChecked=0, Total=1190 [2020-10-27 04:28:54,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5303 states. [2020-10-27 04:28:55,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5303 to 3899. [2020-10-27 04:28:55,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3899 states. [2020-10-27 04:28:55,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3899 states to 3899 states and 5472 transitions. [2020-10-27 04:28:55,275 INFO L78 Accepts]: Start accepts. Automaton has 3899 states and 5472 transitions. Word has length 100 [2020-10-27 04:28:55,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:28:55,276 INFO L481 AbstractCegarLoop]: Abstraction has 3899 states and 5472 transitions. [2020-10-27 04:28:55,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 04:28:55,276 INFO L276 IsEmpty]: Start isEmpty. Operand 3899 states and 5472 transitions. [2020-10-27 04:28:55,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 04:28:55,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:28:55,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:28:55,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 04:28:55,278 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:28:55,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:28:55,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1898298780, now seen corresponding path program 1 times [2020-10-27 04:28:55,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:28:55,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460574612] [2020-10-27 04:28:55,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:28:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:55,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:55,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:55,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:55,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:55,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:56,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:00,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:00,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 04:29:00,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 04:29:00,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 04:29:00,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:00,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:29:00,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 04:29:00,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 04:29:00,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:00,564 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:29:00,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:29:00,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:00,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:00,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:00,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:29:00,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:00,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 04:29:00,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:00,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:00,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:00,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 04:29:00,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:00,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:29:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:00,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:00,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:00,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:29:00,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:00,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 04:29:00,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:00,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:29:00,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:00,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 04:29:00,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:00,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:29:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:00,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:00,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:00,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:29:00,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:00,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:29:00,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:00,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:00,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:00,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:29:00,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:00,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:29:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:00,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:00,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:00,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:00,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:00,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:29:00,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:00,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:00,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:00,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:00,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:00,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:29:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:00,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:00,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:00,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:29:00,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:00,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:29:00,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:00,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:29:00,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:29:00,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 04:29:00,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:00,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 04:29:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:00,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:00,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:00,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:00,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:00,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:29:00,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:00,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:00,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:29:00,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:00,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:00,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 04:29:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:00,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:00,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:00,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:00,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:00,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:29:00,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:00,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:00,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:29:00,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:00,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:00,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 04:29:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:00,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:00,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:00,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:00,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:00,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:29:00,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:00,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:00,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:29:00,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:00,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:00,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 04:29:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:00,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:00,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:00,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:29:00,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:00,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:29:00,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:00,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:00,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:29:00,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:00,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:01,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:29:01,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460574612] [2020-10-27 04:29:01,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:29:01,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 04:29:01,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336105646] [2020-10-27 04:29:01,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 04:29:01,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:29:01,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 04:29:01,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-27 04:29:01,015 INFO L87 Difference]: Start difference. First operand 3899 states and 5472 transitions. Second operand 15 states. [2020-10-27 04:29:01,296 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-27 04:29:01,557 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:29:02,124 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 04:29:02,614 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 04:29:05,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:29:05,209 INFO L93 Difference]: Finished difference Result 9941 states and 13959 transitions. [2020-10-27 04:29:05,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 04:29:05,210 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 100 [2020-10-27 04:29:05,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:29:05,251 INFO L225 Difference]: With dead ends: 9941 [2020-10-27 04:29:05,251 INFO L226 Difference]: Without dead ends: 6128 [2020-10-27 04:29:05,264 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2020-10-27 04:29:05,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6128 states. [2020-10-27 04:29:05,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6128 to 3929. [2020-10-27 04:29:05,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3929 states. [2020-10-27 04:29:05,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3929 states to 3929 states and 5523 transitions. [2020-10-27 04:29:05,758 INFO L78 Accepts]: Start accepts. Automaton has 3929 states and 5523 transitions. Word has length 100 [2020-10-27 04:29:05,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:29:05,758 INFO L481 AbstractCegarLoop]: Abstraction has 3929 states and 5523 transitions. [2020-10-27 04:29:05,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 04:29:05,759 INFO L276 IsEmpty]: Start isEmpty. Operand 3929 states and 5523 transitions. [2020-10-27 04:29:05,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-27 04:29:05,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:29:05,760 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:29:05,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 04:29:05,761 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:29:05,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:29:05,761 INFO L82 PathProgramCache]: Analyzing trace with hash 492475858, now seen corresponding path program 1 times [2020-10-27 04:29:05,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:29:05,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621079143] [2020-10-27 04:29:05,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:29:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:05,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:05,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:05,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:09,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:09,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 04:29:09,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:29:09,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3990 [2020-10-27 04:29:09,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:09,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:29:09,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-27 04:29:09,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-27 04:29:09,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:10,011 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:29:10,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:29:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:10,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:10,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:10,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:29:10,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:10,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:29:10,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:10,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:10,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:10,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:10,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:10,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:29:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:10,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:10,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:10,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:29:10,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:10,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:29:10,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:10,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:10,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:10,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 04:29:10,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:10,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:29:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:10,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:10,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:10,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:29:10,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:10,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:29:10,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:10,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:10,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:10,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:29:10,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:10,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:29:10,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:10,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:10,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:10,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:10,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:10,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:29:10,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:10,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:10,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:10,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:10,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:10,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:29:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:10,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:10,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:10,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:10,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:10,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:29:10,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:10,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:10,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:10,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:10,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:10,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:29:10,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:10,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:10,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:10,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:10,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:10,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:29:10,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:10,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:10,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:10,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:10,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:10,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 04:29:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:10,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:10,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:10,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:10,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:10,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:29:10,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:10,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:29:10,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:29:10,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:29:10,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:10,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 04:29:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:10,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:10,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:10,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:10,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:10,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:29:10,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:10,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:10,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:29:10,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:10,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:10,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 04:29:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:10,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:10,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:10,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:29:10,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:10,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:29:10,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:10,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:10,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 04:29:10,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:10,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:10,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:29:10,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1621079143] [2020-10-27 04:29:10,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:29:10,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 04:29:10,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159807641] [2020-10-27 04:29:10,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 04:29:10,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:29:10,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 04:29:10,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 04:29:10,321 INFO L87 Difference]: Start difference. First operand 3929 states and 5523 transitions. Second operand 11 states. [2020-10-27 04:29:10,624 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:29:13,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:29:13,352 INFO L93 Difference]: Finished difference Result 10949 states and 15532 transitions. [2020-10-27 04:29:13,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 04:29:13,353 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-27 04:29:13,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:29:13,382 INFO L225 Difference]: With dead ends: 10949 [2020-10-27 04:29:13,383 INFO L226 Difference]: Without dead ends: 7157 [2020-10-27 04:29:13,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:29:13,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7157 states. [2020-10-27 04:29:14,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7157 to 6098. [2020-10-27 04:29:14,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6098 states. [2020-10-27 04:29:14,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6098 states to 6098 states and 8550 transitions. [2020-10-27 04:29:14,080 INFO L78 Accepts]: Start accepts. Automaton has 6098 states and 8550 transitions. Word has length 101 [2020-10-27 04:29:14,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:29:14,080 INFO L481 AbstractCegarLoop]: Abstraction has 6098 states and 8550 transitions. [2020-10-27 04:29:14,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 04:29:14,080 INFO L276 IsEmpty]: Start isEmpty. Operand 6098 states and 8550 transitions. [2020-10-27 04:29:14,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-27 04:29:14,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:29:14,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:29:14,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 04:29:14,082 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:29:14,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:29:14,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1886745956, now seen corresponding path program 1 times [2020-10-27 04:29:14,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:29:14,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [899258307] [2020-10-27 04:29:14,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:29:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:14,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:14,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:15,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:15,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 04:29:15,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:29:15,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1060 [2020-10-27 04:29:15,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:15,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:29:15,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-27 04:29:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-27 04:29:15,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:15,412 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:29:15,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:29:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:15,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:15,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:15,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:29:15,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:15,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:29:15,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:15,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:15,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:15,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:15,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:15,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:29:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:15,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:15,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:15,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:29:15,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:15,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:29:15,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:15,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:15,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:15,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:29:15,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:15,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:29:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:15,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:15,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:15,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:29:15,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:15,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:29:15,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:15,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:15,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:15,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:29:15,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:15,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:29:15,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:15,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:15,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:15,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:15,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:15,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:29:15,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:15,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:15,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:15,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:15,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:15,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:29:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:15,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:15,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:15,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:15,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:15,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:29:15,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:15,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:15,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:15,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:15,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:15,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:29:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:15,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:15,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:15,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:15,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:15,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:29:15,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:15,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:15,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:15,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:15,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:15,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 04:29:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:15,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:15,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:15,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:15,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:15,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:29:15,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:15,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:15,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:15,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:15,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:15,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 04:29:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:15,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:15,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:15,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:15,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:15,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:29:15,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:15,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:29:15,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:29:15,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:29:15,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:15,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 04:29:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:15,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:15,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:15,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:29:15,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:15,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:29:15,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:15,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:15,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 04:29:15,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:15,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:15,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:29:15,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [899258307] [2020-10-27 04:29:15,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:29:15,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 04:29:15,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920292550] [2020-10-27 04:29:15,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 04:29:15,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:29:15,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 04:29:15,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 04:29:15,705 INFO L87 Difference]: Start difference. First operand 6098 states and 8550 transitions. Second operand 11 states. [2020-10-27 04:29:16,001 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:29:19,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:29:19,061 INFO L93 Difference]: Finished difference Result 17432 states and 24596 transitions. [2020-10-27 04:29:19,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 04:29:19,064 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-27 04:29:19,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:29:19,113 INFO L225 Difference]: With dead ends: 17432 [2020-10-27 04:29:19,113 INFO L226 Difference]: Without dead ends: 11492 [2020-10-27 04:29:19,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:29:19,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11492 states. [2020-10-27 04:29:20,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11492 to 11429. [2020-10-27 04:29:20,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11429 states. [2020-10-27 04:29:20,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11429 states to 11429 states and 15913 transitions. [2020-10-27 04:29:20,355 INFO L78 Accepts]: Start accepts. Automaton has 11429 states and 15913 transitions. Word has length 101 [2020-10-27 04:29:20,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:29:20,356 INFO L481 AbstractCegarLoop]: Abstraction has 11429 states and 15913 transitions. [2020-10-27 04:29:20,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 04:29:20,356 INFO L276 IsEmpty]: Start isEmpty. Operand 11429 states and 15913 transitions. [2020-10-27 04:29:20,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-27 04:29:20,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:29:20,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:29:20,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 04:29:20,358 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:29:20,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:29:20,359 INFO L82 PathProgramCache]: Analyzing trace with hash 468190482, now seen corresponding path program 1 times [2020-10-27 04:29:20,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:29:20,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424487230] [2020-10-27 04:29:20,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:29:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:20,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:20,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:20,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 04:29:20,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:20,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-10-27 04:29:20,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:20,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:29:20,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-27 04:29:20,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 04:29:20,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:20,958 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:29:20,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:29:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:20,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:20,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:20,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:29:20,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:20,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:29:20,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:20,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:20,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:20,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:20,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:20,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:29:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:20,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:20,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:20,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:29:20,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:20,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:29:20,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:20,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:20,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:20,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:20,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:20,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:29:20,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:20,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:20,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:20,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:29:20,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:20,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:29:20,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:20,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:20,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:20,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:20,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:21,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:29:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:21,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:21,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:21,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:21,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:21,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:29:21,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:21,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:21,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:21,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:21,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:21,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:29:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:21,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:21,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:21,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:21,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:21,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:29:21,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:21,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:21,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:21,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:21,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:21,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:29:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:21,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:21,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:21,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:21,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:21,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:29:21,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:21,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:21,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:21,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:21,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:21,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 04:29:21,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:21,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:21,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:21,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:21,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:21,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:29:21,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:21,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:21,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:21,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:21,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:21,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 04:29:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:21,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:21,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:21,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:21,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:21,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:29:21,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:21,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:21,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:21,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:21,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:21,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 04:29:21,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:21,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:21,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:21,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:29:21,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:21,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:29:21,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:21,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:29:21,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:21,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:29:21,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:21,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:29:21,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424487230] [2020-10-27 04:29:21,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:29:21,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 04:29:21,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095956175] [2020-10-27 04:29:21,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 04:29:21,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:29:21,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 04:29:21,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-27 04:29:21,218 INFO L87 Difference]: Start difference. First operand 11429 states and 15913 transitions. Second operand 14 states. [2020-10-27 04:29:22,720 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 04:29:22,965 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-27 04:29:23,265 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:29:23,526 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-27 04:29:24,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:29:24,984 INFO L93 Difference]: Finished difference Result 12408 states and 17958 transitions. [2020-10-27 04:29:24,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 04:29:24,986 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 101 [2020-10-27 04:29:24,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:29:25,036 INFO L225 Difference]: With dead ends: 12408 [2020-10-27 04:29:25,036 INFO L226 Difference]: Without dead ends: 12405 [2020-10-27 04:29:25,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2020-10-27 04:29:25,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12405 states. [2020-10-27 04:29:26,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12405 to 11609. [2020-10-27 04:29:26,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11609 states. [2020-10-27 04:29:26,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11609 states to 11609 states and 16077 transitions. [2020-10-27 04:29:26,270 INFO L78 Accepts]: Start accepts. Automaton has 11609 states and 16077 transitions. Word has length 101 [2020-10-27 04:29:26,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:29:26,271 INFO L481 AbstractCegarLoop]: Abstraction has 11609 states and 16077 transitions. [2020-10-27 04:29:26,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 04:29:26,271 INFO L276 IsEmpty]: Start isEmpty. Operand 11609 states and 16077 transitions. [2020-10-27 04:29:26,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-27 04:29:26,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:29:26,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:29:26,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 04:29:26,273 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:29:26,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:29:26,273 INFO L82 PathProgramCache]: Analyzing trace with hash -581620071, now seen corresponding path program 1 times [2020-10-27 04:29:26,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:29:26,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13790256] [2020-10-27 04:29:26,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:29:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:26,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:26,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:26,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:26,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:31,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:31,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-27 04:29:31,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 04:29:31,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 04:29:31,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:31,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:29:31,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 04:29:31,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-27 04:29:31,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:31,570 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:29:31,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:29:31,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:31,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:31,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:31,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:29:31,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:31,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:29:31,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:31,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:31,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:31,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 04:29:31,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:31,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:29:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:31,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:31,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:31,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:29:31,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:31,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:29:31,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:31,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:29:31,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:31,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 04:29:31,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:31,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:29:31,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:31,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:31,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:31,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:29:31,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:31,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:29:31,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:31,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:31,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:31,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:29:31,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:31,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:29:31,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:31,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:31,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:31,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 04:29:31,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:31,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:29:31,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:31,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:29:31,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:29:31,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:29:31,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:31,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 04:29:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:31,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:31,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:31,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:31,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:31,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:29:31,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:31,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:31,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:29:31,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:31,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:31,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 04:29:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:31,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:31,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:31,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:31,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:31,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:29:31,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:31,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:31,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:29:31,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:31,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:31,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 04:29:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:31,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:31,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:31,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:31,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:31,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:29:31,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:31,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:31,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:29:31,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:31,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:31,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 04:29:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:31,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:31,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:31,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:31,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:31,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:29:31,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:31,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:31,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:29:31,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:31,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:31,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 04:29:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:31,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:31,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:31,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:29:31,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:31,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:29:31,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:31,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:31,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:29:31,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:31,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:31,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:29:31,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13790256] [2020-10-27 04:29:31,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:29:31,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 04:29:31,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535244932] [2020-10-27 04:29:31,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 04:29:31,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:29:31,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 04:29:31,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-27 04:29:31,919 INFO L87 Difference]: Start difference. First operand 11609 states and 16077 transitions. Second operand 15 states. [2020-10-27 04:29:32,216 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-27 04:29:32,487 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:29:33,072 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 04:29:33,336 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 04:29:36,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:29:36,835 INFO L93 Difference]: Finished difference Result 22746 states and 31685 transitions. [2020-10-27 04:29:36,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 04:29:36,836 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 102 [2020-10-27 04:29:36,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:29:36,890 INFO L225 Difference]: With dead ends: 22746 [2020-10-27 04:29:36,890 INFO L226 Difference]: Without dead ends: 14327 [2020-10-27 04:29:36,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2020-10-27 04:29:36,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14327 states. [2020-10-27 04:29:38,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14327 to 11572. [2020-10-27 04:29:38,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11572 states. [2020-10-27 04:29:38,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11572 states to 11572 states and 16031 transitions. [2020-10-27 04:29:38,271 INFO L78 Accepts]: Start accepts. Automaton has 11572 states and 16031 transitions. Word has length 102 [2020-10-27 04:29:38,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:29:38,272 INFO L481 AbstractCegarLoop]: Abstraction has 11572 states and 16031 transitions. [2020-10-27 04:29:38,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 04:29:38,272 INFO L276 IsEmpty]: Start isEmpty. Operand 11572 states and 16031 transitions. [2020-10-27 04:29:38,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-27 04:29:38,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:29:38,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:29:38,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 04:29:38,273 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:29:38,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:29:38,274 INFO L82 PathProgramCache]: Analyzing trace with hash -773732392, now seen corresponding path program 1 times [2020-10-27 04:29:38,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:29:38,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965644698] [2020-10-27 04:29:38,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:29:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:38,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:38,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:38,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:39,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:39,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:29:39,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:29:39,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 775 [2020-10-27 04:29:39,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:39,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:29:39,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 04:29:39,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-27 04:29:39,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:39,333 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:29:39,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:29:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:39,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:39,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:39,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:29:39,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:39,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:29:39,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:39,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:39,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:39,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:39,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:39,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:29:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:39,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:39,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:39,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:29:39,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:39,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:29:39,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:39,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:39,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:39,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 04:29:39,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:39,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:29:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:39,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:39,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:39,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:29:39,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:39,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:29:39,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:39,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:39,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:39,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:29:39,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:39,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:29:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:39,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:39,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:39,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:29:39,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:39,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:29:39,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:39,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:29:39,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:29:39,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 04:29:39,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:39,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 04:29:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:39,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:39,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:39,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:39,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:39,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:29:39,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:39,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:39,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:39,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:39,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:39,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 04:29:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:39,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:39,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:39,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:39,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:39,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:29:39,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:39,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:39,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:39,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:39,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:39,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 04:29:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:39,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:39,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:39,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:39,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:39,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:29:39,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:39,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:39,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:39,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:39,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:39,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 04:29:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:39,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:39,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:39,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:39,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:39,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:29:39,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:39,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:39,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:39,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:39,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:39,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 04:29:39,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:39,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:39,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:39,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:39,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:29:39,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:29:39,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:29:39,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:39,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:39,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 04:29:39,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:29:39,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:39,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:29:39,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [965644698] [2020-10-27 04:29:39,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:29:39,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 04:29:39,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910777886] [2020-10-27 04:29:39,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 04:29:39,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:29:39,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 04:29:39,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-27 04:29:39,741 INFO L87 Difference]: Start difference. First operand 11572 states and 16031 transitions. Second operand 13 states. [2020-10-27 04:29:40,029 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:29:40,841 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-27 04:29:43,656 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-27 04:29:46,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:29:46,445 INFO L93 Difference]: Finished difference Result 24810 states and 34815 transitions. [2020-10-27 04:29:46,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-27 04:29:46,446 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 103 [2020-10-27 04:29:46,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:29:46,512 INFO L225 Difference]: With dead ends: 24810 [2020-10-27 04:29:46,512 INFO L226 Difference]: Without dead ends: 16463 [2020-10-27 04:29:46,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=315, Invalid=1167, Unknown=0, NotChecked=0, Total=1482 [2020-10-27 04:29:46,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16463 states. [2020-10-27 04:29:48,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16463 to 16274. [2020-10-27 04:29:48,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16274 states. [2020-10-27 04:29:48,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16274 states to 16274 states and 22631 transitions. [2020-10-27 04:29:48,262 INFO L78 Accepts]: Start accepts. Automaton has 16274 states and 22631 transitions. Word has length 103 [2020-10-27 04:29:48,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:29:48,262 INFO L481 AbstractCegarLoop]: Abstraction has 16274 states and 22631 transitions. [2020-10-27 04:29:48,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 04:29:48,263 INFO L276 IsEmpty]: Start isEmpty. Operand 16274 states and 22631 transitions. [2020-10-27 04:29:48,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-27 04:29:48,271 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:29:48,272 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:29:48,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 04:29:48,272 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:29:48,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:29:48,273 INFO L82 PathProgramCache]: Analyzing trace with hash -888368257, now seen corresponding path program 1 times [2020-10-27 04:29:48,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:29:48,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1822614064] [2020-10-27 04:29:48,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:29:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:48,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:48,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:48,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:49,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:49,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:49,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:50,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:53,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:53,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-27 04:29:53,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 04:29:53,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-27 04:29:53,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:53,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:29:53,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:29:53,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-27 04:29:53,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:53,585 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:29:53,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:29:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:53,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:53,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:53,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:29:53,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:53,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:29:53,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:53,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:53,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:53,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:53,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:53,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:29:53,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:53,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:53,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:53,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:29:53,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:53,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:29:53,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:53,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:53,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:53,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 04:29:53,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:53,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:29:53,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:53,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:53,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:53,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:29:53,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:53,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:29:53,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:53,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:53,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:53,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:29:53,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:53,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:29:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:53,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:53,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:53,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:53,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:53,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:29:53,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:53,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:53,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:53,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:53,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:53,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:29:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:53,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:53,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:53,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:53,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:53,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:29:53,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:53,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:53,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:53,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:53,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:53,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:29:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:53,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:53,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:53,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:53,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:53,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 04:29:53,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:53,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:29:53,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:29:53,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:29:53,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:54,031 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 34 [2020-10-27 04:29:54,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 04:29:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:54,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:54,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:54,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:54,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:54,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:29:54,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:54,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:54,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:54,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:54,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:54,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 04:29:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:54,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:54,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:54,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:54,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:54,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:29:54,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:54,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:54,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:54,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:54,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:54,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 04:29:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:54,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:54,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:54,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:29:54,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:54,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:29:54,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:54,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:54,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:54,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 04:29:54,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:54,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 04:29:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:54,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:54,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:54,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:29:54,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:54,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:29:54,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:54,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:54,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:54,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:29:54,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:54,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 04:29:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:54,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:54,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:54,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:54,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:54,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:29:54,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:54,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:54,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:54,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:54,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:54,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-27 04:29:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:54,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:54,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:54,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:54,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:54,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:29:54,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:54,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:54,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:54,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:54,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:54,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 04:29:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:54,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:54,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:54,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:54,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:54,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:29:54,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:54,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:54,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:54,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:54,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:54,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-27 04:29:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:54,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:54,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:54,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:54,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:54,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:29:54,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:54,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:29:54,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:29:54,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:29:54,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:54,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 04:29:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:54,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:54,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:54,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:29:54,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:54,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:29:54,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:54,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:54,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 04:29:54,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:54,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:54,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 04:29:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:54,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:54,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:54,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:29:54,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:54,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:29:54,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:54,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:54,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:29:54,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:54,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:54,337 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-27 04:29:54,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1822614064] [2020-10-27 04:29:54,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:29:54,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-27 04:29:54,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616327605] [2020-10-27 04:29:54,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 04:29:54,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:29:54,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 04:29:54,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-10-27 04:29:54,339 INFO L87 Difference]: Start difference. First operand 16274 states and 22631 transitions. Second operand 17 states. [2020-10-27 04:29:54,699 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-27 04:29:55,342 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-27 04:29:56,611 WARN L193 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 176 [2020-10-27 04:29:57,083 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-27 04:29:58,046 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-27 04:29:59,109 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-27 04:29:59,880 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 178 [2020-10-27 04:30:00,604 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-27 04:30:05,627 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 04:30:09,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:30:09,339 INFO L93 Difference]: Finished difference Result 75864 states and 104674 transitions. [2020-10-27 04:30:09,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-27 04:30:09,340 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 152 [2020-10-27 04:30:09,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:30:09,715 INFO L225 Difference]: With dead ends: 75864 [2020-10-27 04:30:09,716 INFO L226 Difference]: Without dead ends: 59717 [2020-10-27 04:30:09,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 997 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=698, Invalid=2962, Unknown=0, NotChecked=0, Total=3660 [2020-10-27 04:30:09,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59717 states. [2020-10-27 04:30:16,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59717 to 55778. [2020-10-27 04:30:16,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55778 states. [2020-10-27 04:30:16,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55778 states to 55778 states and 76765 transitions. [2020-10-27 04:30:16,787 INFO L78 Accepts]: Start accepts. Automaton has 55778 states and 76765 transitions. Word has length 152 [2020-10-27 04:30:16,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:30:16,787 INFO L481 AbstractCegarLoop]: Abstraction has 55778 states and 76765 transitions. [2020-10-27 04:30:16,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 04:30:16,787 INFO L276 IsEmpty]: Start isEmpty. Operand 55778 states and 76765 transitions. [2020-10-27 04:30:16,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-27 04:30:16,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:30:16,812 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:30:16,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 04:30:16,812 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:30:16,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:30:16,813 INFO L82 PathProgramCache]: Analyzing trace with hash 188014259, now seen corresponding path program 1 times [2020-10-27 04:30:16,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:30:16,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844359328] [2020-10-27 04:30:16,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:30:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:16,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:16,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:17,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:17,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:17,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:18,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:19,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:19,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:21,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:21,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-27 04:30:21,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 04:30:21,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-27 04:30:21,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:21,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 04:30:21,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:30:21,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-27 04:30:21,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:22,166 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:30:22,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:30:22,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:22,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:22,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:22,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:30:22,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:22,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:30:22,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:22,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:30:22,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:30:22,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:30:22,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:22,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:30:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:22,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:22,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:22,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:30:22,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:22,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:30:22,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:22,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:30:22,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:30:22,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 04:30:22,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:22,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:30:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:22,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:22,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:22,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:30:22,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:22,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:30:22,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:22,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:30:22,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:30:22,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:30:22,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:22,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:30:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:22,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:22,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:22,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:22,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:22,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:30:22,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:22,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:30:22,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:30:22,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:30:22,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:22,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:30:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:22,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:22,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:22,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:22,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:22,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:30:22,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:22,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:30:22,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:30:22,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:30:22,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:22,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:30:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:22,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:22,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:22,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:22,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:22,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:30:22,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:22,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:30:22,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:30:22,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:30:22,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:22,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 04:30:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:22,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:22,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:22,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:22,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:22,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:30:22,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:22,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:30:22,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:30:22,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:30:22,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:22,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 04:30:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:22,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:22,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:22,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:22,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:22,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:30:22,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:22,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:30:22,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:30:22,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:30:22,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:22,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 04:30:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:22,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:22,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:22,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:30:22,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:22,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:30:22,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:22,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:30:22,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:30:22,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 04:30:22,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:22,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 04:30:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:22,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:22,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:22,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:30:22,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:22,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:30:22,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:22,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:30:22,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:30:22,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:30:22,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:22,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 04:30:22,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:22,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:22,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:22,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:22,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:22,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:30:22,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:22,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:30:22,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:30:22,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:30:22,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:22,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-27 04:30:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:22,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:22,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:22,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:22,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:22,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:30:22,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:22,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:30:22,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:30:22,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:30:22,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:22,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 04:30:22,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:22,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:22,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:22,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:22,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:22,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:30:22,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:22,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:30:22,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:30:22,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:30:22,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:22,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-27 04:30:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:22,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:22,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:22,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:30:22,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:22,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:30:22,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:22,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:30:22,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:30:22,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 04:30:22,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:22,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-27 04:30:22,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:22,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:22,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:22,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:22,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:22,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:30:22,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:22,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:30:22,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:30:22,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:30:22,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:22,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 04:30:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:22,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:22,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:22,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:30:22,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:22,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:30:22,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:22,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:30:22,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:30:22,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:30:22,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:22,724 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-27 04:30:22,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1844359328] [2020-10-27 04:30:22,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:30:22,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-27 04:30:22,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788997927] [2020-10-27 04:30:22,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-27 04:30:22,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:30:22,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-27 04:30:22,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2020-10-27 04:30:22,726 INFO L87 Difference]: Start difference. First operand 55778 states and 76765 transitions. Second operand 20 states. [2020-10-27 04:30:23,328 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 156 [2020-10-27 04:30:23,650 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-27 04:30:24,434 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 157 [2020-10-27 04:30:24,877 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-27 04:30:25,184 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-10-27 04:30:25,491 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-27 04:30:26,011 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 159