/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:56:02,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:56:02,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:56:02,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:56:02,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:56:02,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:56:02,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:56:02,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:56:02,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:56:02,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:56:02,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:56:02,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:56:02,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:56:02,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:56:02,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:56:02,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:56:02,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:56:02,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:56:02,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:56:02,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:56:02,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:56:02,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:56:02,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:56:02,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:56:02,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:56:02,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:56:02,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:56:02,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:56:02,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:56:02,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:56:02,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:56:02,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:56:02,605 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:56:02,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:56:02,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:56:02,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:56:02,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:56:02,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:56:02,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:56:02,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:56:02,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:56:02,614 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 22:56:02,671 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:56:02,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:56:02,676 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:56:02,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:56:02,677 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:56:02,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:56:02,678 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:56:02,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:56:02,679 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:56:02,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:56:02,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:56:02,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:56:02,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:56:02,681 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:56:02,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:56:02,681 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:56:02,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:56:02,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:56:02,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:56:02,682 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:56:02,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:56:02,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:56:02,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:56:02,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:56:02,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:56:02,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:56:02,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:56:02,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:56:02,684 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:56:02,684 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:56:03,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:56:03,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:56:03,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:56:03,131 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:56:03,132 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:56:03,134 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.1.ufo.UNBOUNDED.pals.c [2020-10-27 22:56:03,215 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d9e43220e/3b94e0fd05454c0bbadaf289013ef201/FLAG3f68ac730 [2020-10-27 22:56:03,866 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:56:03,866 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.1.ufo.UNBOUNDED.pals.c [2020-10-27 22:56:03,880 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d9e43220e/3b94e0fd05454c0bbadaf289013ef201/FLAG3f68ac730 [2020-10-27 22:56:04,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d9e43220e/3b94e0fd05454c0bbadaf289013ef201 [2020-10-27 22:56:04,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:56:04,215 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:56:04,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:56:04,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:56:04,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:56:04,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:56:04" (1/1) ... [2020-10-27 22:56:04,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24e39eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:56:04, skipping insertion in model container [2020-10-27 22:56:04,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:56:04" (1/1) ... [2020-10-27 22:56:04,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:56:04,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:56:04,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:56:04,563 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:56:04,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:56:04,641 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:56:04,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:56:04 WrapperNode [2020-10-27 22:56:04,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:56:04,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:56:04,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:56:04,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:56:04,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:56:04" (1/1) ... [2020-10-27 22:56:04,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:56:04" (1/1) ... [2020-10-27 22:56:04,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:56:04" (1/1) ... [2020-10-27 22:56:04,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:56:04" (1/1) ... [2020-10-27 22:56:04,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:56:04" (1/1) ... [2020-10-27 22:56:04,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:56:04" (1/1) ... [2020-10-27 22:56:04,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:56:04" (1/1) ... [2020-10-27 22:56:04,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:56:04,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:56:04,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:56:04,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:56:04,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:56:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:56:04,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:56:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:56:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:56:04,798 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 22:56:04,798 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 22:56:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 22:56:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 22:56:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 22:56:04,800 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 22:56:04,800 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 22:56:04,801 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:56:04,801 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 22:56:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:56:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:56:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:56:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:56:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 22:56:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 22:56:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-27 22:56:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 22:56:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 22:56:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 22:56:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 22:56:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 22:56:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 22:56:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 22:56:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 22:56:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 22:56:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 22:56:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:56:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:56:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:56:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:56:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:56:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:56:04,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:56:05,530 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:56:05,530 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 22:56:05,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:56:05 BoogieIcfgContainer [2020-10-27 22:56:05,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:56:05,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:56:05,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:56:05,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:56:05,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:56:04" (1/3) ... [2020-10-27 22:56:05,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@475c329d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:56:05, skipping insertion in model container [2020-10-27 22:56:05,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:56:04" (2/3) ... [2020-10-27 22:56:05,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@475c329d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:56:05, skipping insertion in model container [2020-10-27 22:56:05,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:56:05" (3/3) ... [2020-10-27 22:56:05,542 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals.c [2020-10-27 22:56:05,554 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:56:05,559 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 22:56:05,573 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 22:56:05,602 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:56:05,603 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:56:05,603 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:56:05,603 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:56:05,603 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:56:05,603 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:56:05,603 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:56:05,603 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:56:05,624 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states. [2020-10-27 22:56:05,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-27 22:56:05,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:56:05,634 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] [2020-10-27 22:56:05,635 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:56:05,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:56:05,642 INFO L82 PathProgramCache]: Analyzing trace with hash 894184064, now seen corresponding path program 1 times [2020-10-27 22:56:05,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:56:05,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2015067505] [2020-10-27 22:56:05,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:56:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:05,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:06,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:06,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-27 22:56:06,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:06,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-10-27 22:56:06,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:06,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:06,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 22:56:06,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:06,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-27 22:56:06,625 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 22:56:06,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:56:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:06,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:06,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:06,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:56:06,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:06,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-27 22:56:06,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:06,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:06,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:06,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:06,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:06,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:56:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:06,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:06,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:06,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:56:06,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:06,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:56:06,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:06,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:06,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:06,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:06,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:06,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 22:56:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:06,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:06,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:06,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:56:06,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:06,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:56:06,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:06,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:06,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:56:06,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:06,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:06,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 22:56:06,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:06,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:06,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:06,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:06,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:06,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:56:06,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:06,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:06,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:56:06,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:06,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:06,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 22:56:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:06,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:06,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:06,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:06,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:06,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:56:06,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:06,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:06,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:56:06,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:06,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:06,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 22:56:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:06,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:06,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:06,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:06,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:06,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:56:06,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:06,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:06,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:56:06,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:06,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:06,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 22:56:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:06,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:06,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:06,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:06,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:06,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:56:06,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:06,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:06,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:56:06,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:06,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:06,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:56:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:06,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:06,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:06,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:56:06,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:06,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:56:06,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:06,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:06,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:56:06,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:06,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:06,952 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 22:56:06,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2015067505] [2020-10-27 22:56:06,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:56:06,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 22:56:06,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857523097] [2020-10-27 22:56:06,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 22:56:06,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:56:06,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 22:56:06,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 22:56:06,978 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 7 states. [2020-10-27 22:56:07,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:56:07,859 INFO L93 Difference]: Finished difference Result 187 states and 270 transitions. [2020-10-27 22:56:07,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 22:56:07,861 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2020-10-27 22:56:07,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:56:07,873 INFO L225 Difference]: With dead ends: 187 [2020-10-27 22:56:07,874 INFO L226 Difference]: Without dead ends: 109 [2020-10-27 22:56:07,878 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:56:07,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-27 22:56:07,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2020-10-27 22:56:07,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-27 22:56:07,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 157 transitions. [2020-10-27 22:56:07,938 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 157 transitions. Word has length 61 [2020-10-27 22:56:07,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:56:07,938 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 157 transitions. [2020-10-27 22:56:07,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 22:56:07,938 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 157 transitions. [2020-10-27 22:56:07,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-27 22:56:07,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:56:07,941 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] [2020-10-27 22:56:07,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:56:07,942 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:56:07,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:56:07,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1472510530, now seen corresponding path program 1 times [2020-10-27 22:56:07,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:56:07,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [28915018] [2020-10-27 22:56:07,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:56:07,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:07,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:08,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:08,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-27 22:56:08,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:08,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 707 [2020-10-27 22:56:08,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:08,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:56:08,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 22:56:08,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:56:08,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:08,846 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 22:56:08,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:56:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:08,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:08,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:08,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:56:08,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:08,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:56:08,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:08,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:08,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:08,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:08,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:08,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:56:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:08,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:08,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:08,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:56:08,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:08,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:56:08,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:08,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:56:08,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:08,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:56:08,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:08,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 22:56:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:08,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:08,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:08,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:56:08,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:08,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:56:08,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:08,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:56:08,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:56:08,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:56:08,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:09,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 22:56:09,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:09,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:09,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:09,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:09,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:09,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:56:09,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:09,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:09,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:56:09,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:09,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:09,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 22:56:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:09,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:09,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:09,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:09,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:09,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:56:09,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:09,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:09,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:56:09,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:09,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:09,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 22:56:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:09,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:09,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:09,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:09,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:09,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:56:09,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:09,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:09,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:56:09,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:09,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:09,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 22:56:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:09,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:09,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:09,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:09,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:09,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:56:09,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:09,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:09,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:56:09,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:09,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:09,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:56:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:09,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:09,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:09,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:56:09,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:09,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:56:09,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:09,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:09,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:56:09,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:09,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:09,172 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 22:56:09,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [28915018] [2020-10-27 22:56:09,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:56:09,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 22:56:09,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994418156] [2020-10-27 22:56:09,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 22:56:09,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:56:09,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 22:56:09,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-27 22:56:09,176 INFO L87 Difference]: Start difference. First operand 108 states and 157 transitions. Second operand 13 states. [2020-10-27 22:56:09,378 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 22:56:09,576 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-27 22:56:09,868 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-27 22:56:10,107 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-27 22:56:11,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:56:11,466 INFO L93 Difference]: Finished difference Result 182 states and 258 transitions. [2020-10-27 22:56:11,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 22:56:11,467 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 61 [2020-10-27 22:56:11,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:56:11,469 INFO L225 Difference]: With dead ends: 182 [2020-10-27 22:56:11,469 INFO L226 Difference]: Without dead ends: 109 [2020-10-27 22:56:11,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-27 22:56:11,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-27 22:56:11,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2020-10-27 22:56:11,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-27 22:56:11,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 134 transitions. [2020-10-27 22:56:11,498 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 134 transitions. Word has length 61 [2020-10-27 22:56:11,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:56:11,498 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 134 transitions. [2020-10-27 22:56:11,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 22:56:11,498 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 134 transitions. [2020-10-27 22:56:11,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-27 22:56:11,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:56:11,500 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] [2020-10-27 22:56:11,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:56:11,501 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:56:11,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:56:11,501 INFO L82 PathProgramCache]: Analyzing trace with hash -627935559, now seen corresponding path program 1 times [2020-10-27 22:56:11,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:56:11,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524589728] [2020-10-27 22:56:11,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:56:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:11,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:11,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:13,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:13,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-27 22:56:13,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:56:13,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2092 [2020-10-27 22:56:13,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:13,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:56:13,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-27 22:56:13,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 22:56:13,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:56:13,867 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 22:56:13,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:56:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:13,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:13,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:13,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:56:13,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:13,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:56:13,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:13,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:13,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:13,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:13,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:13,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:56:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:13,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:13,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:13,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 22:56:13,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:13,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:56:13,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:13,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:13,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:13,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 22:56:13,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:13,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 22:56:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:13,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:13,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:13,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:56:13,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:13,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:56:13,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:13,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:13,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:13,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:56:13,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:13,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 22:56:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:13,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:13,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:13,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:13,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:13,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:56:13,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:13,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:13,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:13,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:56:13,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:13,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:56:13,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:13,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:14,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:14,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:14,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:14,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:56:14,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:14,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:14,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:14,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:56:14,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:14,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 22:56:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:14,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:14,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:14,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:14,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:14,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:56:14,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:14,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:56:14,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:56:14,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:56:14,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:14,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 22:56:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:14,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:14,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:14,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:14,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:14,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:56:14,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:14,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:14,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:56:14,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:14,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:14,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:56:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:14,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:14,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:14,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:56:14,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:14,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:56:14,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:14,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:14,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:56:14,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:14,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:14,144 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 22:56:14,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524589728] [2020-10-27 22:56:14,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:56:14,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 22:56:14,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766211534] [2020-10-27 22:56:14,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 22:56:14,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:56:14,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 22:56:14,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 22:56:14,149 INFO L87 Difference]: Start difference. First operand 108 states and 134 transitions. Second operand 10 states. [2020-10-27 22:56:14,353 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 22:56:16,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:56:16,007 INFO L93 Difference]: Finished difference Result 238 states and 314 transitions. [2020-10-27 22:56:16,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 22:56:16,008 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2020-10-27 22:56:16,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:56:16,015 INFO L225 Difference]: With dead ends: 238 [2020-10-27 22:56:16,015 INFO L226 Difference]: Without dead ends: 171 [2020-10-27 22:56:16,020 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-27 22:56:16,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-27 22:56:16,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 166. [2020-10-27 22:56:16,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-27 22:56:16,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 215 transitions. [2020-10-27 22:56:16,066 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 215 transitions. Word has length 83 [2020-10-27 22:56:16,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:56:16,067 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 215 transitions. [2020-10-27 22:56:16,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 22:56:16,067 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 215 transitions. [2020-10-27 22:56:16,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-27 22:56:16,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:56:16,070 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] [2020-10-27 22:56:16,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:56:16,070 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:56:16,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:56:16,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1373518289, now seen corresponding path program 1 times [2020-10-27 22:56:16,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:56:16,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1737095953] [2020-10-27 22:56:16,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:56:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:16,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:16,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:16,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-27 22:56:16,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:16,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 831 [2020-10-27 22:56:16,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:16,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:56:16,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 22:56:16,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-27 22:56:16,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:17,152 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 22:56:17,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:56:17,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:17,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:17,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:17,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:56:17,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:17,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:56:17,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:17,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:17,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:17,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:17,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:17,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:56:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:17,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:17,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:17,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 22:56:17,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:17,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 22:56:17,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:17,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:56:17,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:17,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 22:56:17,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:17,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 22:56:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:17,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:17,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:17,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:56:17,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:17,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:56:17,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:17,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:17,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:17,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:56:17,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:17,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 22:56:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:17,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:17,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:17,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:17,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:17,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 22:56:17,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:17,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:56:17,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:56:17,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:56:17,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:17,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:56:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:17,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:17,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:17,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:17,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:17,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 22:56:17,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:17,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:56:17,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:56:17,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:56:17,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:17,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 22:56:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:17,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:17,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:17,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:17,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:17,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 22:56:17,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:17,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:56:17,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:56:17,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:56:17,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:17,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 22:56:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:17,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:17,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:17,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:17,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:17,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 22:56:17,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:17,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:56:17,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:56:17,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:56:17,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:17,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:56:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:17,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:17,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:17,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:56:17,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:17,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:56:17,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:17,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:17,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:56:17,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:56:17,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:17,652 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 22:56:17,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1737095953] [2020-10-27 22:56:17,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:56:17,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-27 22:56:17,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415143027] [2020-10-27 22:56:17,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 22:56:17,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:56:17,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 22:56:17,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2020-10-27 22:56:17,659 INFO L87 Difference]: Start difference. First operand 166 states and 215 transitions. Second operand 18 states. [2020-10-27 22:56:17,906 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-27 22:56:18,093 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 22:56:18,280 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 22:56:18,502 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 22:56:20,573 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-27 22:56:20,761 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-27 22:56:21,035 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 22:56:24,483 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-27 22:56:26,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:56:26,704 INFO L93 Difference]: Finished difference Result 1379 states and 1944 transitions. [2020-10-27 22:56:26,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-10-27 22:56:26,709 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 83 [2020-10-27 22:56:26,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:56:26,722 INFO L225 Difference]: With dead ends: 1379 [2020-10-27 22:56:26,722 INFO L226 Difference]: Without dead ends: 1254 [2020-10-27 22:56:26,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1936 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1227, Invalid=4935, Unknown=0, NotChecked=0, Total=6162 [2020-10-27 22:56:26,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2020-10-27 22:56:26,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 1176. [2020-10-27 22:56:26,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1176 states. [2020-10-27 22:56:26,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 1630 transitions. [2020-10-27 22:56:26,886 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 1630 transitions. Word has length 83 [2020-10-27 22:56:26,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:56:26,886 INFO L481 AbstractCegarLoop]: Abstraction has 1176 states and 1630 transitions. [2020-10-27 22:56:26,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 22:56:26,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 1630 transitions. [2020-10-27 22:56:26,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-27 22:56:26,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:56:26,890 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] [2020-10-27 22:56:26,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:56:26,890 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:56:26,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:56:26,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1101819615, now seen corresponding path program 1 times [2020-10-27 22:56:26,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:56:26,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1700936204] [2020-10-27 22:56:26,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:56:26,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:26,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:27,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:27,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:27,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:27,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-27 22:56:27,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:56:27,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 770 [2020-10-27 22:56:27,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:27,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:56:27,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-27 22:56:27,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:56:27,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:27,997 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 22:56:27,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:56:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:28,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:28,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:28,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:56:28,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:28,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:56:28,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:28,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:28,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:28,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:28,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:28,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:56:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:28,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:28,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:28,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 22:56:28,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:28,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 22:56:28,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:28,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:28,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:28,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:28,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:56:28,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 22:56:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:28,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:28,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:28,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:56:28,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:28,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:56:28,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:28,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:28,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:28,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:28,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:56:28,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 22:56:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:28,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:28,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:28,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:28,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:28,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:56:28,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:28,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:28,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:28,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:28,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:28,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:56:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:28,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:28,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:28,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:28,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:28,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:56:28,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:28,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:56:28,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 22:56:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:28,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:28,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:28,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:28,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:28,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:56:28,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:28,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:28,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:28,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:28,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:28,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 22:56:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:28,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:28,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:28,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:28,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:28,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:56:28,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:28,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:28,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:28,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:28,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:28,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:56:28,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:28,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:28,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:28,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:28,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 22:56:28,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:56:28,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:56:28,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:28,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:28,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 22:56:28,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:56:28,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:28,290 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 22:56:28,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1700936204] [2020-10-27 22:56:28,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:56:28,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 22:56:28,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050176903] [2020-10-27 22:56:28,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 22:56:28,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:56:28,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 22:56:28,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-27 22:56:28,293 INFO L87 Difference]: Start difference. First operand 1176 states and 1630 transitions. Second operand 12 states. [2020-10-27 22:56:29,415 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-27 22:56:30,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:56:30,785 INFO L93 Difference]: Finished difference Result 3358 states and 4702 transitions. [2020-10-27 22:56:30,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 22:56:30,786 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 85 [2020-10-27 22:56:30,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:56:30,810 INFO L225 Difference]: With dead ends: 3358 [2020-10-27 22:56:30,810 INFO L226 Difference]: Without dead ends: 2223 [2020-10-27 22:56:30,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2020-10-27 22:56:30,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2020-10-27 22:56:31,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 2166. [2020-10-27 22:56:31,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2166 states. [2020-10-27 22:56:31,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2166 states to 2166 states and 2997 transitions. [2020-10-27 22:56:31,121 INFO L78 Accepts]: Start accepts. Automaton has 2166 states and 2997 transitions. Word has length 85 [2020-10-27 22:56:31,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:56:31,122 INFO L481 AbstractCegarLoop]: Abstraction has 2166 states and 2997 transitions. [2020-10-27 22:56:31,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 22:56:31,122 INFO L276 IsEmpty]: Start isEmpty. Operand 2166 states and 2997 transitions. [2020-10-27 22:56:31,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-27 22:56:31,131 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:56:31,131 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] [2020-10-27 22:56:31,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:56:31,132 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:56:31,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:56:31,132 INFO L82 PathProgramCache]: Analyzing trace with hash -2082425637, now seen corresponding path program 1 times [2020-10-27 22:56:31,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:56:31,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [711425773] [2020-10-27 22:56:31,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:56:31,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:31,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:31,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:31,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:32,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:36,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:36,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-27 22:56:36,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:56:36,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-27 22:56:36,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:36,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:56:36,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-27 22:56:36,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 22:56:36,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:36,348 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 22:56:36,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:56:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:36,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:36,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:36,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:56:36,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:36,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:56:36,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:36,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:36,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:36,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:36,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:36,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:56:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:36,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:36,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:36,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 22:56:36,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:36,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:56:36,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:36,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:36,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:36,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:36,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:36,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 22:56:36,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:36,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:36,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:36,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:56:36,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:36,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:56:36,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:36,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:36,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:36,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:36,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:36,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 22:56:36,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:36,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:36,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:36,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:36,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:36,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:56:36,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:36,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:36,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:36,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:56:36,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:36,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:56:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:36,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:36,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:36,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:36,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:36,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:56:36,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:36,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:36,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:36,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:56:36,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:36,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 22:56:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:36,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:36,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:36,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:36,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:36,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:56:36,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:36,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:36,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:36,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:56:36,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:36,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 22:56:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:36,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:36,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:36,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:56:36,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:36,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:56:36,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:36,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:56:36,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:56:36,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:56:36,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:36,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 22:56:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:36,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:36,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:36,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:56:36,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:36,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:56:36,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:36,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:36,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:56:36,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:36,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:36,650 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 22:56:36,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [711425773] [2020-10-27 22:56:36,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:56:36,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:56:36,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310279019] [2020-10-27 22:56:36,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:56:36,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:56:36,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:56:36,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:56:36,655 INFO L87 Difference]: Start difference. First operand 2166 states and 2997 transitions. Second operand 11 states. [2020-10-27 22:56:37,052 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 22:56:37,626 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 22:56:38,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:56:38,703 INFO L93 Difference]: Finished difference Result 4613 states and 6312 transitions. [2020-10-27 22:56:38,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 22:56:38,703 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 85 [2020-10-27 22:56:38,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:56:38,722 INFO L225 Difference]: With dead ends: 4613 [2020-10-27 22:56:38,722 INFO L226 Difference]: Without dead ends: 2488 [2020-10-27 22:56:38,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506 [2020-10-27 22:56:38,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2020-10-27 22:56:38,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2256. [2020-10-27 22:56:38,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2256 states. [2020-10-27 22:56:38,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2256 states to 2256 states and 3115 transitions. [2020-10-27 22:56:38,957 INFO L78 Accepts]: Start accepts. Automaton has 2256 states and 3115 transitions. Word has length 85 [2020-10-27 22:56:38,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:56:38,958 INFO L481 AbstractCegarLoop]: Abstraction has 2256 states and 3115 transitions. [2020-10-27 22:56:38,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:56:38,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2256 states and 3115 transitions. [2020-10-27 22:56:38,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-27 22:56:38,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:56:38,960 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] [2020-10-27 22:56:38,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 22:56:38,960 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:56:38,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:56:38,961 INFO L82 PathProgramCache]: Analyzing trace with hash -142994693, now seen corresponding path program 1 times [2020-10-27 22:56:38,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:56:38,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137298881] [2020-10-27 22:56:38,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:56:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:39,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:39,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:39,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:40,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:43,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:43,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-27 22:56:43,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:56:43,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4358 [2020-10-27 22:56:43,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:43,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:56:43,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-27 22:56:43,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 22:56:43,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:43,536 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 22:56:43,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:56:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:43,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:43,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:43,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:56:43,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:43,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:56:43,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:43,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:43,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:43,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:43,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:43,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:56:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:43,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:43,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:43,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 22:56:43,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:43,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:56:43,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:43,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:43,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:43,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:43,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:43,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 22:56:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:43,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:43,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:43,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:56:43,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:43,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:56:43,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:43,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:43,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:43,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:43,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:43,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 22:56:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:43,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:43,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:43,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:43,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:43,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:56:43,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:43,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:43,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:43,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:56:43,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:43,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:56:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:43,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:43,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:43,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:56:43,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:43,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:56:43,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:43,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:56:43,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:56:43,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:56:43,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:43,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 22:56:43,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:43,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:43,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:43,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:43,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:43,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:56:43,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:43,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:43,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:56:43,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:43,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:43,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 22:56:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:43,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:43,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:43,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:43,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:43,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:56:43,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:43,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:43,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:56:43,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:43,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:43,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 22:56:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:43,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:43,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:43,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:56:43,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:43,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:56:43,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:56:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:43,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:43,777 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 22:56:43,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137298881] [2020-10-27 22:56:43,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:56:43,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:56:43,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558704788] [2020-10-27 22:56:43,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:56:43,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:56:43,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:56:43,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:56:43,780 INFO L87 Difference]: Start difference. First operand 2256 states and 3115 transitions. Second operand 11 states. [2020-10-27 22:56:44,142 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 22:56:44,462 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 22:56:45,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:56:45,840 INFO L93 Difference]: Finished difference Result 5422 states and 7438 transitions. [2020-10-27 22:56:45,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 22:56:45,840 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 85 [2020-10-27 22:56:45,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:56:45,860 INFO L225 Difference]: With dead ends: 5422 [2020-10-27 22:56:45,861 INFO L226 Difference]: Without dead ends: 3236 [2020-10-27 22:56:45,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506 [2020-10-27 22:56:45,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3236 states. [2020-10-27 22:56:46,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3236 to 2443. [2020-10-27 22:56:46,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2443 states. [2020-10-27 22:56:46,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3366 transitions. [2020-10-27 22:56:46,098 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3366 transitions. Word has length 85 [2020-10-27 22:56:46,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:56:46,099 INFO L481 AbstractCegarLoop]: Abstraction has 2443 states and 3366 transitions. [2020-10-27 22:56:46,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:56:46,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3366 transitions. [2020-10-27 22:56:46,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-27 22:56:46,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:56:46,100 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] [2020-10-27 22:56:46,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 22:56:46,101 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:56:46,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:56:46,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1204346472, now seen corresponding path program 1 times [2020-10-27 22:56:46,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:56:46,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913707144] [2020-10-27 22:56:46,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:56:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:46,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:46,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:46,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:46,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-27 22:56:46,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:56:46,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-27 22:56:46,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:46,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:56:46,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 22:56:46,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 22:56:46,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:46,616 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 22:56:46,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:56:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:46,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:46,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:46,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:56:46,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:46,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:56:46,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:46,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:46,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:46,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:46,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:46,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:56:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:46,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:46,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:46,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 22:56:46,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:46,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:56:46,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:46,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:46,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:46,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 22:56:46,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:46,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 22:56:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:46,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:46,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:46,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:56:46,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:46,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:56:46,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:46,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:46,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:46,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:56:46,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:46,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 22:56:46,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:46,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:46,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:46,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:46,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:46,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 22:56:46,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:46,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:56:46,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:56:46,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:56:46,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:46,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:56:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:46,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:46,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:46,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:46,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:46,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 22:56:46,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:46,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:46,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:46,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:56:46,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:46,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 22:56:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:46,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:46,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:46,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:46,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:46,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:56:46,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:46,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:46,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:46,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:56:46,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:46,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 22:56:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:46,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:46,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:46,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:46,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:46,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:56:46,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:46,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:46,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:46,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:56:46,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:46,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:56:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:46,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:46,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:46,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:46,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:56:46,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:56:46,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:56:46,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:46,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:46,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:56:46,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:56:46,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:47,002 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 22:56:47,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913707144] [2020-10-27 22:56:47,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:56:47,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 22:56:47,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364856625] [2020-10-27 22:56:47,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 22:56:47,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:56:47,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 22:56:47,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 22:56:47,005 INFO L87 Difference]: Start difference. First operand 2443 states and 3366 transitions. Second operand 10 states. [2020-10-27 22:56:47,233 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 22:56:48,479 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-27 22:56:49,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:56:49,778 INFO L93 Difference]: Finished difference Result 5906 states and 8181 transitions. [2020-10-27 22:56:49,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-27 22:56:49,778 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-10-27 22:56:49,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:56:49,803 INFO L225 Difference]: With dead ends: 5906 [2020-10-27 22:56:49,803 INFO L226 Difference]: Without dead ends: 3511 [2020-10-27 22:56:49,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:56:49,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3511 states. [2020-10-27 22:56:50,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3511 to 3437. [2020-10-27 22:56:50,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3437 states. [2020-10-27 22:56:50,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3437 states to 3437 states and 4709 transitions. [2020-10-27 22:56:50,086 INFO L78 Accepts]: Start accepts. Automaton has 3437 states and 4709 transitions. Word has length 86 [2020-10-27 22:56:50,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:56:50,087 INFO L481 AbstractCegarLoop]: Abstraction has 3437 states and 4709 transitions. [2020-10-27 22:56:50,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 22:56:50,087 INFO L276 IsEmpty]: Start isEmpty. Operand 3437 states and 4709 transitions. [2020-10-27 22:56:50,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-27 22:56:50,088 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:56:50,088 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] [2020-10-27 22:56:50,089 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 22:56:50,089 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:56:50,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:56:50,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1673780233, now seen corresponding path program 1 times [2020-10-27 22:56:50,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:56:50,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [462376281] [2020-10-27 22:56:50,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:56:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:50,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:50,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:50,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-27 22:56:50,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:50,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-10-27 22:56:50,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:50,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:56:50,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-27 22:56:50,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:56:50,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:50,679 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 22:56:50,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:56:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:50,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:50,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:50,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:56:50,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:50,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:56:50,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:50,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:50,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:50,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:50,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:50,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:56:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:50,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:50,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:50,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 22:56:50,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:50,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:56:50,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:50,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:50,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:50,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:50,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:50,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 22:56:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:50,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:50,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:50,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:56:50,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:50,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:56:50,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:50,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:50,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:50,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:50,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:50,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 22:56:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:50,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:50,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:50,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:50,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:50,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:56:50,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:50,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:50,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:50,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:50,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:50,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:56:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:50,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:50,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:50,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:50,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:50,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:56:50,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:50,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:50,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:50,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:50,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:50,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 22:56:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:50,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:50,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:50,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:50,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:50,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:56:50,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:50,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:50,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 22:56:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:50,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:50,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:50,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:50,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:50,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:56:50,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:50,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:50,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:50,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:50,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:50,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:56:50,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:50,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:50,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:50,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:56:50,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:50,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:56:50,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:50,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:56:50,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:50,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 22:56:50,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:50,938 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 22:56:50,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [462376281] [2020-10-27 22:56:50,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:56:50,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 22:56:50,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666162694] [2020-10-27 22:56:50,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 22:56:50,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:56:50,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 22:56:50,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-27 22:56:50,942 INFO L87 Difference]: Start difference. First operand 3437 states and 4709 transitions. Second operand 13 states. [2020-10-27 22:56:52,064 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 22:56:52,264 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-27 22:56:52,511 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 22:56:52,713 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-27 22:56:53,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:56:53,209 INFO L93 Difference]: Finished difference Result 3853 states and 5463 transitions. [2020-10-27 22:56:53,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 22:56:53,210 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 86 [2020-10-27 22:56:53,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:56:53,236 INFO L225 Difference]: With dead ends: 3853 [2020-10-27 22:56:53,236 INFO L226 Difference]: Without dead ends: 3850 [2020-10-27 22:56:53,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2020-10-27 22:56:53,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3850 states. [2020-10-27 22:56:53,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3850 to 3599. [2020-10-27 22:56:53,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3599 states. [2020-10-27 22:56:53,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3599 states to 3599 states and 4875 transitions. [2020-10-27 22:56:53,592 INFO L78 Accepts]: Start accepts. Automaton has 3599 states and 4875 transitions. Word has length 86 [2020-10-27 22:56:53,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:56:53,593 INFO L481 AbstractCegarLoop]: Abstraction has 3599 states and 4875 transitions. [2020-10-27 22:56:53,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 22:56:53,593 INFO L276 IsEmpty]: Start isEmpty. Operand 3599 states and 4875 transitions. [2020-10-27 22:56:53,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-27 22:56:53,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:56:53,595 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] [2020-10-27 22:56:53,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 22:56:53,595 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:56:53,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:56:53,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1854051586, now seen corresponding path program 1 times [2020-10-27 22:56:53,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:56:53,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1795855209] [2020-10-27 22:56:53,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:56:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:53,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:53,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:54,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:54,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:58,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:58,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 22:56:58,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:56:58,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 22:56:58,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:58,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:56:58,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-27 22:56:58,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:56:58,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:58,794 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 22:56:58,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:56:58,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:58,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:58,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:58,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:56:58,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:58,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:56:58,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:58,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:58,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:58,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:58,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:58,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:56:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:58,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:58,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:58,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 22:56:58,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:58,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:56:58,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:58,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:58,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:58,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:58,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:58,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 22:56:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:58,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:58,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:58,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:56:58,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:58,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:56:58,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:58,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:58,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:58,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:58,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:58,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 22:56:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:58,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:58,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:58,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 22:56:58,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:58,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 22:56:58,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:58,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:56:58,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:56:58,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 22:56:58,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:58,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 22:56:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:58,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:58,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:58,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:58,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:58,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:56:58,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:58,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:58,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:56:58,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:58,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:59,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 22:56:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:59,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:59,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:59,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:59,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:59,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:56:59,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:59,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:59,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:56:59,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:59,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:59,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 22:56:59,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:59,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:59,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:59,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:56:59,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:59,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:56:59,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:59,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:59,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:56:59,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:59,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:59,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 22:56:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:59,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:59,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:59,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:56:59,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:59,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:56:59,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:59,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:59,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:56:59,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:59,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:59,103 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 22:56:59,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1795855209] [2020-10-27 22:56:59,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:56:59,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:56:59,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44738257] [2020-10-27 22:56:59,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:56:59,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:56:59,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:56:59,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:56:59,106 INFO L87 Difference]: Start difference. First operand 3599 states and 4875 transitions. Second operand 11 states. [2020-10-27 22:56:59,486 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 22:56:59,668 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 22:57:01,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:57:01,276 INFO L93 Difference]: Finished difference Result 7031 states and 9590 transitions. [2020-10-27 22:57:01,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 22:57:01,276 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 87 [2020-10-27 22:57:01,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:57:01,304 INFO L225 Difference]: With dead ends: 7031 [2020-10-27 22:57:01,304 INFO L226 Difference]: Without dead ends: 4476 [2020-10-27 22:57:01,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506 [2020-10-27 22:57:01,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4476 states. [2020-10-27 22:57:01,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4476 to 3525. [2020-10-27 22:57:01,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3525 states. [2020-10-27 22:57:01,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3525 states to 3525 states and 4797 transitions. [2020-10-27 22:57:01,622 INFO L78 Accepts]: Start accepts. Automaton has 3525 states and 4797 transitions. Word has length 87 [2020-10-27 22:57:01,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:57:01,623 INFO L481 AbstractCegarLoop]: Abstraction has 3525 states and 4797 transitions. [2020-10-27 22:57:01,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:57:01,623 INFO L276 IsEmpty]: Start isEmpty. Operand 3525 states and 4797 transitions. [2020-10-27 22:57:01,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-27 22:57:01,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:57:01,624 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] [2020-10-27 22:57:01,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 22:57:01,624 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:57:01,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:57:01,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1531788883, now seen corresponding path program 1 times [2020-10-27 22:57:01,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:57:01,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949236418] [2020-10-27 22:57:01,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:57:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:01,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:01,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:01,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:02,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:02,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-27 22:57:02,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:57:02,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1068 [2020-10-27 22:57:02,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:02,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:02,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-27 22:57:02,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:57:02,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:02,878 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 22:57:02,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:57:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:02,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:02,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:02,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:57:02,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:02,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:57:02,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:02,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:02,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:02,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:02,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:02,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:57:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:02,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:02,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:02,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 22:57:02,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:02,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:57:02,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:02,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:02,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:02,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:57:02,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:02,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 22:57:02,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:02,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:02,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:02,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:57:02,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:02,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:57:02,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:02,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:02,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:02,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:57:02,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:02,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 22:57:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:02,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:02,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:02,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:57:02,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:02,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:57:02,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:02,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:02,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:02,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:57:02,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:03,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 22:57:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:03,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:03,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:03,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:03,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:03,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:57:03,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:03,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:03,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:57:03,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:03,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:03,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 22:57:03,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:03,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:03,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:03,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:03,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:03,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:57:03,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:03,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:03,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:57:03,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:03,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:03,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 22:57:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:03,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:03,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:03,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:03,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:03,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:57:03,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:03,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:03,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:57:03,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:03,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:03,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 22:57:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:03,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:03,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:03,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:57:03,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:03,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:57:03,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:03,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:03,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 22:57:03,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:03,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:03,094 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 22:57:03,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949236418] [2020-10-27 22:57:03,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:57:03,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 22:57:03,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588737424] [2020-10-27 22:57:03,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 22:57:03,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:57:03,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 22:57:03,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 22:57:03,101 INFO L87 Difference]: Start difference. First operand 3525 states and 4797 transitions. Second operand 10 states. [2020-10-27 22:57:03,296 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 22:57:04,160 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-27 22:57:05,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:57:05,432 INFO L93 Difference]: Finished difference Result 7182 states and 9793 transitions. [2020-10-27 22:57:05,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 22:57:05,433 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 88 [2020-10-27 22:57:05,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:57:05,462 INFO L225 Difference]: With dead ends: 7182 [2020-10-27 22:57:05,462 INFO L226 Difference]: Without dead ends: 4556 [2020-10-27 22:57:05,473 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-10-27 22:57:05,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4556 states. [2020-10-27 22:57:05,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4556 to 4390. [2020-10-27 22:57:05,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4390 states. [2020-10-27 22:57:05,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4390 states to 4390 states and 5894 transitions. [2020-10-27 22:57:05,851 INFO L78 Accepts]: Start accepts. Automaton has 4390 states and 5894 transitions. Word has length 88 [2020-10-27 22:57:05,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:57:05,851 INFO L481 AbstractCegarLoop]: Abstraction has 4390 states and 5894 transitions. [2020-10-27 22:57:05,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 22:57:05,851 INFO L276 IsEmpty]: Start isEmpty. Operand 4390 states and 5894 transitions. [2020-10-27 22:57:05,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-27 22:57:05,855 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:57:05,856 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:57:05,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 22:57:05,856 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:57:05,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:57:05,856 INFO L82 PathProgramCache]: Analyzing trace with hash 183880190, now seen corresponding path program 1 times [2020-10-27 22:57:05,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:57:05,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287156928] [2020-10-27 22:57:05,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:57:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:05,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:05,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:06,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:07,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:07,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:07,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:10,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:10,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-27 22:57:10,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:57:10,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-27 22:57:10,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:10,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:10,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-27 22:57:10,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-27 22:57:10,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:11,097 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 22:57:11,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:57:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:11,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:11,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:11,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:57:11,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:11,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:57:11,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:11,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:11,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:11,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:11,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:11,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:57:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:11,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:11,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:11,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 22:57:11,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:11,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:57:11,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:11,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:11,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:11,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:11,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:11,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 22:57:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:11,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:11,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:11,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:57:11,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:11,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:57:11,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:11,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:11,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:11,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:11,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:11,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 22:57:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:11,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:11,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:11,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:11,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:11,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:57:11,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:11,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:11,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:11,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:11,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:11,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:57:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:11,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:11,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:11,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:11,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:11,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:57:11,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:11,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:11,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:11,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:57:11,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:11,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 22:57:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:11,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:11,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:11,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:11,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:11,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:57:11,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:11,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:11,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:11,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:57:11,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:11,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 22:57:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:11,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:11,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:11,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:11,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:11,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:57:11,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:57:11,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:11,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:57:11,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:11,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:11,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:11,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:57:11,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:11,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:57:11,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:11,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:11,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:11,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:57:11,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:11,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 22:57:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:11,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:11,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:11,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:57:11,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:11,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:57:11,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:11,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:11,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:11,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:57:11,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:11,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 22:57:11,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:11,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:11,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:11,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:11,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:11,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:57:11,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:11,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:11,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:11,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:57:11,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:11,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 22:57:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:11,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:11,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:11,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:11,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:11,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:57:11,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:11,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:11,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:11,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:57:11,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:11,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 22:57:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:11,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:11,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:11,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:11,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:11,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:57:11,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:11,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:11,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:57:11,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:11,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:11,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 22:57:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:11,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:11,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:11,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:57:11,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:11,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:57:11,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:11,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:11,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 22:57:11,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:11,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:11,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 22:57:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:11,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:11,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:11,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:57:11,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:11,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:57:11,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:11,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:11,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:57:11,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:11,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:11,417 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-27 22:57:11,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [287156928] [2020-10-27 22:57:11,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:57:11,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 22:57:11,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184148121] [2020-10-27 22:57:11,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 22:57:11,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:57:11,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 22:57:11,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 22:57:11,419 INFO L87 Difference]: Start difference. First operand 4390 states and 5894 transitions. Second operand 10 states. [2020-10-27 22:57:11,681 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-27 22:57:12,302 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 22:57:13,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:57:13,756 INFO L93 Difference]: Finished difference Result 12896 states and 17489 transitions. [2020-10-27 22:57:13,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 22:57:13,757 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 130 [2020-10-27 22:57:13,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:57:13,799 INFO L225 Difference]: With dead ends: 12896 [2020-10-27 22:57:13,799 INFO L226 Difference]: Without dead ends: 8580 [2020-10-27 22:57:13,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-10-27 22:57:13,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8580 states. [2020-10-27 22:57:14,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8580 to 8247. [2020-10-27 22:57:14,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8247 states. [2020-10-27 22:57:14,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8247 states to 8247 states and 11003 transitions. [2020-10-27 22:57:14,511 INFO L78 Accepts]: Start accepts. Automaton has 8247 states and 11003 transitions. Word has length 130 [2020-10-27 22:57:14,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:57:14,511 INFO L481 AbstractCegarLoop]: Abstraction has 8247 states and 11003 transitions. [2020-10-27 22:57:14,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 22:57:14,512 INFO L276 IsEmpty]: Start isEmpty. Operand 8247 states and 11003 transitions. [2020-10-27 22:57:14,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-27 22:57:14,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:57:14,518 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:57:14,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 22:57:14,518 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:57:14,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:57:14,519 INFO L82 PathProgramCache]: Analyzing trace with hash -671538530, now seen corresponding path program 1 times [2020-10-27 22:57:14,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:57:14,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [653937752] [2020-10-27 22:57:14,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:57:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:14,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:14,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:14,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:14,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:15,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:19,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:19,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-27 22:57:19,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:57:19,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-27 22:57:19,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:19,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:19,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-27 22:57:19,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-27 22:57:19,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:19,782 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 22:57:19,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:57:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:19,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:19,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:19,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:57:19,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:19,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:57:19,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:19,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:19,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:19,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:19,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:19,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:57:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:19,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:19,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:19,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 22:57:19,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:19,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:57:19,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:19,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:19,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:19,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:19,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:19,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 22:57:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:19,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:19,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:19,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:57:19,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:19,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:57:19,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:19,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:19,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:19,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:19,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:19,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 22:57:19,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:19,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:19,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:19,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:19,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:19,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:57:19,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:19,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:19,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:19,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:57:19,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:19,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:57:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:19,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:19,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:19,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:19,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:19,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:57:19,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:19,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:57:19,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:19,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 22:57:19,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:19,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:19,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:19,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:19,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:19,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:57:19,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:19,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:19,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:19,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:57:19,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:19,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 22:57:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:19,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:19,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:19,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:19,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:19,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:57:19,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:19,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:19,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:19,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:57:19,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:19,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:57:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:19,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:19,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:19,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:57:19,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:19,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:57:19,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:19,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:19,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:19,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:57:19,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:19,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 22:57:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:19,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:19,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:19,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:57:19,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:19,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:57:19,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:19,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:19,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:19,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:57:19,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:19,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 22:57:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:19,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:19,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:19,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:19,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:19,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:57:19,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:19,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:19,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:19,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:57:19,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:20,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 22:57:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:20,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:20,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:20,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:57:20,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:20,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:57:20,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:20,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:20,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 22:57:20,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:20,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:20,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-27 22:57:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:20,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:20,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:20,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:20,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:20,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:57:20,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:20,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:20,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:57:20,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:20,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:20,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 22:57:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:20,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:20,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:20,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:20,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:20,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:57:20,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:20,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:20,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:57:20,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:20,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:20,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 22:57:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:20,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:20,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:20,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:57:20,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:20,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:57:20,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:20,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:20,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:57:20,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:20,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:20,088 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-27 22:57:20,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [653937752] [2020-10-27 22:57:20,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:57:20,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 22:57:20,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526368514] [2020-10-27 22:57:20,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 22:57:20,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:57:20,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 22:57:20,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 22:57:20,091 INFO L87 Difference]: Start difference. First operand 8247 states and 11003 transitions. Second operand 10 states. [2020-10-27 22:57:20,336 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-27 22:57:20,751 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 22:57:22,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:57:22,292 INFO L93 Difference]: Finished difference Result 14357 states and 19107 transitions. [2020-10-27 22:57:22,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 22:57:22,293 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 130 [2020-10-27 22:57:22,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:57:22,321 INFO L225 Difference]: With dead ends: 14357 [2020-10-27 22:57:22,321 INFO L226 Difference]: Without dead ends: 6202 [2020-10-27 22:57:22,344 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-10-27 22:57:22,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6202 states. [2020-10-27 22:57:22,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6202 to 5701. [2020-10-27 22:57:22,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5701 states. [2020-10-27 22:57:22,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5701 states to 5701 states and 7451 transitions. [2020-10-27 22:57:22,939 INFO L78 Accepts]: Start accepts. Automaton has 5701 states and 7451 transitions. Word has length 130 [2020-10-27 22:57:22,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:57:22,939 INFO L481 AbstractCegarLoop]: Abstraction has 5701 states and 7451 transitions. [2020-10-27 22:57:22,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 22:57:22,939 INFO L276 IsEmpty]: Start isEmpty. Operand 5701 states and 7451 transitions. [2020-10-27 22:57:22,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-27 22:57:22,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:57:22,944 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:57:22,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 22:57:22,944 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:57:22,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:57:22,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1806473367, now seen corresponding path program 1 times [2020-10-27 22:57:22,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:57:22,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [577438123] [2020-10-27 22:57:22,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:57:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:22,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:23,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:23,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:23,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:23,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:27,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:27,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-27 22:57:27,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:57:27,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-27 22:57:27,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:27,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 22:57:27,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-27 22:57:27,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-27 22:57:27,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:28,182 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 22:57:28,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:57:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:28,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:28,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:28,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:57:28,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:28,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:57:28,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:28,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:28,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:28,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:28,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:28,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:57:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:28,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:28,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:28,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 22:57:28,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:28,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 22:57:28,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:28,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:28,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:28,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 22:57:28,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:28,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 22:57:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:28,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:28,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:28,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:57:28,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:28,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:57:28,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:28,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:28,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:28,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:57:28,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:28,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 22:57:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:28,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:28,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:28,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:28,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:28,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:57:28,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:28,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:28,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:28,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:57:28,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:28,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:57:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:28,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:28,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:28,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:28,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:28,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:57:28,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:28,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:28,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:28,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:57:28,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:28,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 22:57:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:28,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:28,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:28,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:28,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:28,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:57:28,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:28,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:28,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:28,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:57:28,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:28,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 22:57:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:28,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:28,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:28,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:28,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:28,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:57:28,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:28,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:28,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:28,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:57:28,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:28,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:57:28,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:28,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:28,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:28,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:57:28,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:28,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:57:28,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:28,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:28,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:28,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:57:28,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:28,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 22:57:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:28,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:28,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:28,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:57:28,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:28,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:57:28,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:28,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:28,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:28,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:57:28,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:28,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 22:57:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:28,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:28,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:28,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 22:57:28,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:28,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:57:28,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:28,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:57:28,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:28,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 22:57:28,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:28,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 22:57:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:28,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:28,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:28,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:28,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:28,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:57:28,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:28,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:28,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:28,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:57:28,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:28,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-27 22:57:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:28,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:28,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:28,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:28,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:28,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:57:28,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:28,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:28,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:28,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:57:28,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:28,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-27 22:57:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:28,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:28,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:28,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:28,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:28,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:57:28,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:28,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:28,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:28,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:57:28,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:28,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 22:57:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:28,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:28,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:28,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:57:28,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:28,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:57:28,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:28,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:28,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:57:28,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:57:28,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:28,687 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-27 22:57:28,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [577438123] [2020-10-27 22:57:28,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:57:28,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-27 22:57:28,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234807049] [2020-10-27 22:57:28,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 22:57:28,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:57:28,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 22:57:28,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2020-10-27 22:57:28,690 INFO L87 Difference]: Start difference. First operand 5701 states and 7451 transitions. Second operand 17 states. [2020-10-27 22:57:29,128 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 133 [2020-10-27 22:57:29,336 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 22:57:29,540 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 22:57:29,759 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-27 22:57:30,403 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-27 22:57:30,586 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-27 22:57:32,060 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-27 22:57:32,274 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-27 22:57:32,480 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-27 22:57:36,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:57:36,577 INFO L93 Difference]: Finished difference Result 11534 states and 15158 transitions. [2020-10-27 22:57:36,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-27 22:57:36,578 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 132 [2020-10-27 22:57:36,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:57:36,634 INFO L225 Difference]: With dead ends: 11534 [2020-10-27 22:57:36,634 INFO L226 Difference]: Without dead ends: 10291 [2020-10-27 22:57:36,645 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1205 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=933, Invalid=3357, Unknown=0, NotChecked=0, Total=4290 [2020-10-27 22:57:36,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10291 states. [2020-10-27 22:57:37,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10291 to 9669. [2020-10-27 22:57:37,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9669 states. [2020-10-27 22:57:37,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9669 states to 9669 states and 12615 transitions. [2020-10-27 22:57:37,567 INFO L78 Accepts]: Start accepts. Automaton has 9669 states and 12615 transitions. Word has length 132 [2020-10-27 22:57:37,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:57:37,568 INFO L481 AbstractCegarLoop]: Abstraction has 9669 states and 12615 transitions. [2020-10-27 22:57:37,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 22:57:37,568 INFO L276 IsEmpty]: Start isEmpty. Operand 9669 states and 12615 transitions. [2020-10-27 22:57:37,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-27 22:57:37,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:57:37,573 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:57:37,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 22:57:37,573 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:57:37,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:57:37,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1618763709, now seen corresponding path program 1 times [2020-10-27 22:57:37,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:57:37,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047147473] [2020-10-27 22:57:37,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:57:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:37,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:37,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:37,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:38,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:42,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:42,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-27 22:57:42,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:57:42,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 22:57:42,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:42,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 22:57:42,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-27 22:57:42,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-27 22:57:42,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:42,802 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 22:57:42,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:57:42,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:42,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:42,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:42,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:57:42,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:42,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:57:42,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:42,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:42,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:42,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:42,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:42,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:57:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:42,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:42,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:42,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 22:57:42,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:42,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:57:42,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:42,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:42,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:42,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 22:57:42,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:42,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 22:57:42,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:42,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:42,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:42,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:57:42,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:42,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:57:42,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:42,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:42,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:42,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:57:42,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:42,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 22:57:42,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:42,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:42,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:42,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:42,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:42,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:57:42,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:42,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:42,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:42,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:57:42,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:42,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:57:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:42,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:42,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:42,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:42,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:42,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:57:42,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:42,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:42,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:42,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:57:42,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:42,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 22:57:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:42,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:42,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:42,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:42,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:42,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:57:42,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:42,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:42,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:42,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:57:42,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:42,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 22:57:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:42,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:42,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:42,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:42,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:42,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:57:42,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:57:42,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:42,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:57:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:42,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:42,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:42,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:57:42,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:42,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:57:42,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:42,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:57:42,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:42,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:57:42,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:42,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 22:57:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:42,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:43,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:43,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:57:43,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:43,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:57:43,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:43,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:43,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:43,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:57:43,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:43,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 22:57:43,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:43,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:43,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:43,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:57:43,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:43,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:57:43,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:43,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:43,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:43,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:57:43,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:43,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 22:57:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:43,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:43,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:43,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:57:43,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:43,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:57:43,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:43,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:57:43,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:43,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:57:43,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:43,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-27 22:57:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:43,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:43,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:43,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:43,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:43,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:57:43,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:43,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:43,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:43,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:57:43,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:43,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-27 22:57:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:43,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:43,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:43,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:43,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:43,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-27 22:57:43,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:43,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:43,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:43,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:57:43,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:43,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 22:57:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:43,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:43,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:43,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:57:43,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:43,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:57:43,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:43,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:43,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:57:43,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:57:43,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:43,222 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-27 22:57:43,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047147473] [2020-10-27 22:57:43,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:57:43,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-27 22:57:43,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874910465] [2020-10-27 22:57:43,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 22:57:43,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:57:43,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 22:57:43,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2020-10-27 22:57:43,224 INFO L87 Difference]: Start difference. First operand 9669 states and 12615 transitions. Second operand 17 states. [2020-10-27 22:57:43,643 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 133 [2020-10-27 22:57:43,884 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 22:57:44,796 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-27 22:57:45,003 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-27 22:57:45,243 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-27 22:57:45,898 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 133 [2020-10-27 22:57:46,025 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-27 22:57:46,191 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-27 22:57:46,527 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-27 22:57:46,703 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-27 22:57:47,170 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-27 22:57:48,073 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-27 22:57:48,583 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-27 22:57:50,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:57:50,483 INFO L93 Difference]: Finished difference Result 26152 states and 35515 transitions. [2020-10-27 22:57:50,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-27 22:57:50,484 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 132 [2020-10-27 22:57:50,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:57:50,552 INFO L225 Difference]: With dead ends: 26152 [2020-10-27 22:57:50,552 INFO L226 Difference]: Without dead ends: 17289 [2020-10-27 22:57:50,580 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=661, Invalid=2095, Unknown=0, NotChecked=0, Total=2756 [2020-10-27 22:57:50,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17289 states. [2020-10-27 22:57:52,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17289 to 16392. [2020-10-27 22:57:52,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16392 states. [2020-10-27 22:57:52,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16392 states to 16392 states and 22059 transitions. [2020-10-27 22:57:52,162 INFO L78 Accepts]: Start accepts. Automaton has 16392 states and 22059 transitions. Word has length 132 [2020-10-27 22:57:52,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:57:52,163 INFO L481 AbstractCegarLoop]: Abstraction has 16392 states and 22059 transitions. [2020-10-27 22:57:52,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 22:57:52,163 INFO L276 IsEmpty]: Start isEmpty. Operand 16392 states and 22059 transitions. [2020-10-27 22:57:52,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-27 22:57:52,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:57:52,168 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:57:52,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 22:57:52,168 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:57:52,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:57:52,169 INFO L82 PathProgramCache]: Analyzing trace with hash -781413799, now seen corresponding path program 1 times [2020-10-27 22:57:52,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:57:52,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1157502616] [2020-10-27 22:57:52,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:57:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:52,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:52,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:52,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:52,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:52,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-27 22:57:57,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:57:57,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-27 22:57:57,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 22:57:57,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-27 22:57:57,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 22:57:57,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,400 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 22:57:57,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:57:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:57,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:57:57,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:57,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:57:57,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:57,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:57,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:57,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:57:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:57,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 22:57:57,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:57,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:57:57,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:57,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:57,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 22:57:57,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 22:57:57,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:57,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:57:57,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:57,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:57:57,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:57,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:57,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:57:57,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 22:57:57,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:57,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:57,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:57,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:57:57,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:57,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:57,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:57:57,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:57:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:57,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:57,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:57,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:57:57,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:57,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:57,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:57:57,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 22:57:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:57,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:57,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:57,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:57:57,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:57,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:57,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:57:57,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 22:57:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:57,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:57,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:57,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:57:57,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:57,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:57,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:57:57,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:57:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:57,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:57:57,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:57,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:57:57,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:57:57,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:57,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:57:57,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 22:57:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:57,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:57:57,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:57,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:57:57,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:57,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:57,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:57:57,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 22:57:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:57,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:57:57,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:57,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:57:57,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:57,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:57,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:57:57,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 22:57:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:57,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:57,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:57,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:57:57,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:57:57,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-27 22:57:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:57,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:57,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:57,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:57:57,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:57,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:57,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:57:57,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 22:57:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:57,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:57:57,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:57,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:57:57,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:57:57,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:57,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:57:57,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 22:57:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:57,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:57:57,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:57,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:57:57,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:57,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:57:57,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:57:57,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,794 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-27 22:57:57,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1157502616] [2020-10-27 22:57:57,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:57:57,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-27 22:57:57,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723728804] [2020-10-27 22:57:57,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 22:57:57,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:57:57,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 22:57:57,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2020-10-27 22:57:57,797 INFO L87 Difference]: Start difference. First operand 16392 states and 22059 transitions. Second operand 17 states. [2020-10-27 22:57:58,217 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 131 [2020-10-27 22:57:58,484 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 22:57:59,033 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-10-27 22:57:59,437 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-27 22:57:59,681 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-27 22:57:59,951 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-10-27 22:58:00,265 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-10-27 22:58:00,768 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-27 22:58:01,287 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 132 [2020-10-27 22:58:01,500 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 22:58:01,691 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-27 22:58:01,913 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 22:58:02,093 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 22:58:02,287 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-27 22:58:02,563 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-27 22:58:04,898 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-10-27 22:58:07,316 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-27 22:58:10,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:58:10,658 INFO L93 Difference]: Finished difference Result 49054 states and 66519 transitions. [2020-10-27 22:58:10,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-10-27 22:58:10,659 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 132 [2020-10-27 22:58:10,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:58:10,955 INFO L225 Difference]: With dead ends: 49054 [2020-10-27 22:58:10,955 INFO L226 Difference]: Without dead ends: 34864 [2020-10-27 22:58:10,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2242 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=1247, Invalid=5559, Unknown=0, NotChecked=0, Total=6806 [2020-10-27 22:58:11,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34864 states. [2020-10-27 22:58:13,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34864 to 33371. [2020-10-27 22:58:13,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33371 states. [2020-10-27 22:58:13,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33371 states to 33371 states and 44835 transitions. [2020-10-27 22:58:13,707 INFO L78 Accepts]: Start accepts. Automaton has 33371 states and 44835 transitions. Word has length 132 [2020-10-27 22:58:13,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:58:13,707 INFO L481 AbstractCegarLoop]: Abstraction has 33371 states and 44835 transitions. [2020-10-27 22:58:13,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 22:58:13,707 INFO L276 IsEmpty]: Start isEmpty. Operand 33371 states and 44835 transitions. [2020-10-27 22:58:13,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-27 22:58:13,712 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:58:13,713 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:58:13,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-27 22:58:13,713 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:58:13,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:58:13,713 INFO L82 PathProgramCache]: Analyzing trace with hash 666089015, now seen corresponding path program 1 times [2020-10-27 22:58:13,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:58:13,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [93746255] [2020-10-27 22:58:13,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:58:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:13,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:13,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:13,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:14,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:14,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:16,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:18,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:18,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-27 22:58:18,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:58:18,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 22:58:18,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:18,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:18,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-27 22:58:18,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-27 22:58:18,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:18,936 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 22:58:18,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:58:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:18,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:18,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:18,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:58:18,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:18,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:58:18,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:18,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:18,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:18,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:18,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:18,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:58:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:18,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:18,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:18,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 22:58:18,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:18,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:58:18,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:18,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:18,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:18,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:18,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:18,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 22:58:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:18,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:18,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:18,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:58:18,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:18,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:58:18,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:18,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:18,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:18,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:18,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:18,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 22:58:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:18,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:18,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:18,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:18,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:18,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:58:18,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:18,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:18,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:18,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:18,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:19,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:58:19,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:19,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:19,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:19,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:19,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:19,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:58:19,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:19,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:19,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:19,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:19,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:19,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 22:58:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:19,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:19,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:19,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:19,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:19,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:58:19,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:19,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:19,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:19,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:19,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:19,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 22:58:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:19,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:19,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:19,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:19,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:19,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:58:19,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:19,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:19,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:19,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:58:19,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:19,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:58:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:19,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:19,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:19,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:58:19,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:19,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:58:19,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:19,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:19,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:19,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:58:19,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:19,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 22:58:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:19,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:19,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:19,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:58:19,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:19,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:58:19,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:19,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:19,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:19,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:58:19,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:19,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 22:58:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:19,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:19,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:19,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:58:19,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:19,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:58:19,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:19,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:19,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:19,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:58:19,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:19,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 22:58:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:19,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:19,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:19,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:19,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:19,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:58:19,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:19,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:19,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:19,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:58:19,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:19,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-27 22:58:19,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:19,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:19,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:19,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:58:19,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:19,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:58:19,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:19,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:19,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:19,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:58:19,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:19,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-27 22:58:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:19,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:19,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:19,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:19,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:19,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:58:19,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:19,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:19,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:58:19,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:58:19,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:19,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 22:58:19,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:19,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:19,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:19,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:58:19,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:19,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:58:19,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:19,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:19,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:58:19,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:19,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:19,214 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-27 22:58:19,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [93746255] [2020-10-27 22:58:19,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:58:19,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 22:58:19,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860181481] [2020-10-27 22:58:19,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 22:58:19,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:58:19,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 22:58:19,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 22:58:19,216 INFO L87 Difference]: Start difference. First operand 33371 states and 44835 transitions. Second operand 10 states. [2020-10-27 22:58:19,532 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-27 22:58:20,365 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 22:58:25,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:58:25,215 INFO L93 Difference]: Finished difference Result 98553 states and 133611 transitions. [2020-10-27 22:58:25,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 22:58:25,216 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 132 [2020-10-27 22:58:25,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:58:25,671 INFO L225 Difference]: With dead ends: 98553 [2020-10-27 22:58:25,671 INFO L226 Difference]: Without dead ends: 65316 [2020-10-27 22:58:25,943 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-10-27 22:58:25,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65316 states. [2020-10-27 22:58:31,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65316 to 62245. [2020-10-27 22:58:31,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62245 states. [2020-10-27 22:58:31,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62245 states to 62245 states and 82693 transitions. [2020-10-27 22:58:31,737 INFO L78 Accepts]: Start accepts. Automaton has 62245 states and 82693 transitions. Word has length 132 [2020-10-27 22:58:31,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:58:31,737 INFO L481 AbstractCegarLoop]: Abstraction has 62245 states and 82693 transitions. [2020-10-27 22:58:31,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 22:58:31,738 INFO L276 IsEmpty]: Start isEmpty. Operand 62245 states and 82693 transitions. [2020-10-27 22:58:31,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-27 22:58:31,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:58:31,745 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:58:31,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-27 22:58:31,745 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:58:31,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:58:31,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1450693395, now seen corresponding path program 1 times [2020-10-27 22:58:31,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:58:31,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716346060] [2020-10-27 22:58:31,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:58:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:31,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:31,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:31,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:34,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:34,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:35,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:36,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:36,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-27 22:58:36,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:58:36,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 22:58:36,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:36,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 22:58:36,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-27 22:58:36,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-27 22:58:36,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:36,974 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 22:58:36,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:58:36,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:36,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:36,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:36,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:58:36,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:36,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:58:36,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:36,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:36,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:36,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:36,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:36,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:58:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:36,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:36,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:36,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 22:58:36,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:36,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:58:36,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:36,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:36,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:36,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:58:36,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:37,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 22:58:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:37,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:37,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:37,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:58:37,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:37,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:58:37,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:37,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:37,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:37,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:58:37,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:37,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 22:58:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:37,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:37,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:37,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:37,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:37,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:58:37,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:37,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:37,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:37,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:58:37,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:37,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:58:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:37,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:37,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:37,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:37,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:37,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:58:37,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:37,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:37,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:37,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:58:37,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:37,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 22:58:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:37,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:37,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:37,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:37,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:37,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:58:37,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:37,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:37,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:58:37,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:58:37,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:37,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 22:58:37,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:37,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:37,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:37,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:37,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:37,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:58:37,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:37,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:37,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:37,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:58:37,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:37,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:58:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:37,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:37,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:37,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:58:37,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:37,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:58:37,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:37,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:58:37,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:37,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:58:37,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:37,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 22:58:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:37,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:37,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:37,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:58:37,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:37,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:58:37,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:37,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:37,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:37,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:58:37,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:37,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 22:58:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:37,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:37,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:37,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:58:37,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:37,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:58:37,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:37,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:37,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:58:37,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:58:37,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:37,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 22:58:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:37,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:37,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:37,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:37,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:37,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:58:37,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:37,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:37,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:58:37,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:58:37,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:37,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-27 22:58:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:37,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:37,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:37,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:58:37,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:37,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:58:37,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:37,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:58:37,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:37,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:58:37,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:37,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-27 22:58:37,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:37,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:37,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:37,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:37,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:37,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:58:37,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:37,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:37,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:58:37,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:58:37,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:37,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 22:58:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:37,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:37,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:37,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:58:37,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:37,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:58:37,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:37,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:37,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:58:37,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:58:37,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:37,349 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-27 22:58:37,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1716346060] [2020-10-27 22:58:37,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:58:37,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-27 22:58:37,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795817529] [2020-10-27 22:58:37,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 22:58:37,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:58:37,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 22:58:37,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2020-10-27 22:58:37,351 INFO L87 Difference]: Start difference. First operand 62245 states and 82693 transitions. Second operand 17 states. [2020-10-27 22:58:37,780 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 133 [2020-10-27 22:58:38,054 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 22:58:38,947 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-27 22:58:39,412 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-27 22:58:39,705 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-27 22:58:39,892 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-10-27 22:58:40,194 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-27 22:58:40,596 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 133 [2020-10-27 22:58:40,780 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-27 22:58:41,248 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-27 22:58:42,229 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-27 22:58:42,660 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-27 22:58:43,472 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-27 22:58:49,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:58:49,417 INFO L93 Difference]: Finished difference Result 122379 states and 163657 transitions. [2020-10-27 22:58:49,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-27 22:58:49,418 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 132 [2020-10-27 22:58:49,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:58:49,961 INFO L225 Difference]: With dead ends: 122379 [2020-10-27 22:58:49,961 INFO L226 Difference]: Without dead ends: 74642 [2020-10-27 22:58:50,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=661, Invalid=2095, Unknown=0, NotChecked=0, Total=2756 [2020-10-27 22:58:50,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74642 states. [2020-10-27 22:58:56,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74642 to 70681. [2020-10-27 22:58:56,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70681 states. [2020-10-27 22:58:56,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70681 states to 70681 states and 93841 transitions. [2020-10-27 22:58:56,635 INFO L78 Accepts]: Start accepts. Automaton has 70681 states and 93841 transitions. Word has length 132 [2020-10-27 22:58:56,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:58:56,635 INFO L481 AbstractCegarLoop]: Abstraction has 70681 states and 93841 transitions. [2020-10-27 22:58:56,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 22:58:56,635 INFO L276 IsEmpty]: Start isEmpty. Operand 70681 states and 93841 transitions. [2020-10-27 22:58:56,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-27 22:58:56,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:58:56,643 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:58:56,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-27 22:58:56,644 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:58:56,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:58:56,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1882621596, now seen corresponding path program 1 times [2020-10-27 22:58:56,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:58:56,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168517582] [2020-10-27 22:58:56,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:58:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:56,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:56,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:56,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:58,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:01,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:01,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 22:59:01,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:59:01,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 22:59:01,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:01,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 22:59:01,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:59:01,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-27 22:59:01,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:01,887 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 22:59:01,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:59:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:01,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:01,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:01,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:59:01,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:01,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:59:01,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:01,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:01,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:01,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:01,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:01,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:59:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:01,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:01,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:01,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 22:59:01,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:01,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:59:01,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:01,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:01,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:01,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:59:01,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:01,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 22:59:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:01,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:01,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:01,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:59:01,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:01,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:59:01,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:01,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:01,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:01,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:59:01,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:01,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 22:59:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:01,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:01,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:01,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:01,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:01,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 22:59:01,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:01,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:59:01,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:59:01,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:59:01,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:02,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:59:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:02,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:02,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:02,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:02,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:02,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:59:02,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:02,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:02,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:02,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:02,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:02,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 22:59:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:02,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:02,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:02,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:02,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:02,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:59:02,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:02,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:02,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:02,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:02,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:02,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 22:59:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:02,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:02,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:02,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:02,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:02,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:59:02,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:02,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:02,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:02,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:02,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:02,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:59:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:02,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:02,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:02,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:59:02,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:02,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:59:02,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:02,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:02,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:02,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:59:02,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:02,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 22:59:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:02,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:02,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:02,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:59:02,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:02,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:59:02,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:02,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:02,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:02,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:59:02,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:02,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 22:59:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:02,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:02,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:02,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:59:02,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:02,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:59:02,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:02,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:02,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:02,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:59:02,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:02,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 22:59:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:02,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:02,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:02,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:02,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:02,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:59:02,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:02,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:59:02,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:59:02,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:59:02,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:02,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-27 22:59:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:02,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:02,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:02,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:02,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:02,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:59:02,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:02,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:02,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:59:02,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:02,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:02,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 22:59:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:02,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:02,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:02,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:02,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:02,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:59:02,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:02,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:02,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:59:02,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:02,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:02,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 22:59:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:02,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:02,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:02,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:59:02,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:02,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:59:02,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:02,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:02,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 22:59:02,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:02,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:02,440 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-27 22:59:02,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168517582] [2020-10-27 22:59:02,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:59:02,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-27 22:59:02,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217245226] [2020-10-27 22:59:02,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 22:59:02,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:59:02,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 22:59:02,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-27 22:59:02,442 INFO L87 Difference]: Start difference. First operand 70681 states and 93841 transitions. Second operand 16 states. [2020-10-27 22:59:02,705 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-27 22:59:03,198 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-27 22:59:03,722 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 150 [2020-10-27 22:59:04,152 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-27 22:59:05,639 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-27 22:59:06,406 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 22:59:08,943 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 22:59:23,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:59:23,578 INFO L93 Difference]: Finished difference Result 278152 states and 371101 transitions. [2020-10-27 22:59:23,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-27 22:59:23,579 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 133 [2020-10-27 22:59:23,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:59:24,921 INFO L225 Difference]: With dead ends: 278152 [2020-10-27 22:59:24,921 INFO L226 Difference]: Without dead ends: 207651 [2020-10-27 22:59:25,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=538, Invalid=2432, Unknown=0, NotChecked=0, Total=2970 [2020-10-27 22:59:25,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207651 states.