/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_floodmax.4.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 17:38:18,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 17:38:18,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 17:38:18,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 17:38:18,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 17:38:18,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 17:38:18,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 17:38:18,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 17:38:18,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 17:38:18,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 17:38:18,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 17:38:18,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 17:38:18,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 17:38:18,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 17:38:18,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 17:38:18,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 17:38:18,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 17:38:18,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 17:38:18,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 17:38:18,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 17:38:18,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 17:38:18,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 17:38:18,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 17:38:18,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 17:38:18,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 17:38:18,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 17:38:18,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 17:38:18,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 17:38:18,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 17:38:18,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 17:38:18,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 17:38:18,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 17:38:18,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 17:38:18,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 17:38:18,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 17:38:18,781 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 17:38:18,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 17:38:18,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 17:38:18,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 17:38:18,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 17:38:18,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 17:38:18,789 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 [2020-10-28 17:38:18,843 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 17:38:18,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 17:38:18,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 17:38:18,849 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 17:38:18,849 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 17:38:18,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 17:38:18,851 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 17:38:18,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 17:38:18,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 17:38:18,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 17:38:18,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 17:38:18,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 17:38:18,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 17:38:18,854 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 17:38:18,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 17:38:18,854 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 17:38:18,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 17:38:18,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 17:38:18,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 17:38:18,855 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 17:38:18,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 17:38:18,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 17:38:18,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 17:38:18,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 17:38:18,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 17:38:18,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 17:38:18,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 17:38:18,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 17:38:18,857 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 17:38:18,857 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 17:38:19,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 17:38:19,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 17:38:19,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 17:38:19,289 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 17:38:19,290 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 17:38:19,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.ufo.UNBOUNDED.pals.c [2020-10-28 17:38:19,367 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/affcceaac/cdf75dbd60884a3e9a3c4cb152301b6d/FLAG8a973eb22 [2020-10-28 17:38:20,154 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 17:38:20,155 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.ufo.UNBOUNDED.pals.c [2020-10-28 17:38:20,179 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/affcceaac/cdf75dbd60884a3e9a3c4cb152301b6d/FLAG8a973eb22 [2020-10-28 17:38:20,399 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/affcceaac/cdf75dbd60884a3e9a3c4cb152301b6d [2020-10-28 17:38:20,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 17:38:20,419 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 17:38:20,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 17:38:20,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 17:38:20,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 17:38:20,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:38:20" (1/1) ... [2020-10-28 17:38:20,433 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 28.10 05:38:20, skipping insertion in model container [2020-10-28 17:38:20,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:38:20" (1/1) ... [2020-10-28 17:38:20,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 17:38:20,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 17:38:20,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:38:20,871 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 17:38:21,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:38:21,053 INFO L208 MainTranslator]: Completed translation [2020-10-28 17:38:21,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:38:21 WrapperNode [2020-10-28 17:38:21,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 17:38:21,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 17:38:21,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 17:38:21,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 17:38:21,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:38:21" (1/1) ... [2020-10-28 17:38:21,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:38:21" (1/1) ... [2020-10-28 17:38:21,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:38:21" (1/1) ... [2020-10-28 17:38:21,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:38:21" (1/1) ... [2020-10-28 17:38:21,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:38:21" (1/1) ... [2020-10-28 17:38:21,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:38:21" (1/1) ... [2020-10-28 17:38:21,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:38:21" (1/1) ... [2020-10-28 17:38:21,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 17:38:21,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 17:38:21,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 17:38:21,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 17:38:21,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:38:21" (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 [2020-10-28 17:38:21,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 17:38:21,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 17:38:21,330 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 17:38:21,330 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 17:38:21,331 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-28 17:38:21,331 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-28 17:38:21,332 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-28 17:38:21,332 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-28 17:38:21,332 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-28 17:38:21,332 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-28 17:38:21,333 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 17:38:21,333 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-28 17:38:21,334 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 17:38:21,334 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 17:38:21,334 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 17:38:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 17:38:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-28 17:38:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-28 17:38:21,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 17:38:21,336 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-28 17:38:21,336 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 17:38:21,336 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-28 17:38:21,337 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-28 17:38:21,337 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-28 17:38:21,337 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-28 17:38:21,337 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-28 17:38:21,337 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-28 17:38:21,337 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-28 17:38:21,338 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-28 17:38:21,338 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 17:38:21,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 17:38:21,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 17:38:21,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 17:38:21,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 17:38:21,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 17:38:21,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 17:38:23,069 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 17:38:23,070 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 17:38:23,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:38:23 BoogieIcfgContainer [2020-10-28 17:38:23,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 17:38:23,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 17:38:23,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 17:38:23,083 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 17:38:23,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 05:38:20" (1/3) ... [2020-10-28 17:38:23,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b512a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:38:23, skipping insertion in model container [2020-10-28 17:38:23,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:38:21" (2/3) ... [2020-10-28 17:38:23,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b512a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:38:23, skipping insertion in model container [2020-10-28 17:38:23,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:38:23" (3/3) ... [2020-10-28 17:38:23,088 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.ufo.UNBOUNDED.pals.c [2020-10-28 17:38:23,101 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 17:38:23,107 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 17:38:23,123 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 17:38:23,180 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 17:38:23,181 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 17:38:23,181 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 17:38:23,181 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 17:38:23,181 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 17:38:23,182 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 17:38:23,182 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 17:38:23,182 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 17:38:23,225 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states. [2020-10-28 17:38:23,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-28 17:38:23,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:38:23,262 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:38:23,262 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:38:23,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:38:23,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1037904158, now seen corresponding path program 1 times [2020-10-28 17:38:23,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:38:23,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1451124933] [2020-10-28 17:38:23,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:38:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:23,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:24,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:24,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:38:24,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:24,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 585 [2020-10-28 17:38:24,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:24,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:24,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:24,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-28 17:38:24,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:24,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-28 17:38:25,046 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:38:25,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:38:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:25,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:25,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:25,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:38:25,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:25,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 17:38:25,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:25,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:25,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:25,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:25,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:25,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:25,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:38:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:25,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:25,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:25,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-28 17:38:25,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:25,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-28 17:38:25,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:25,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:25,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:25,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:25,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:25,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:25,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 17:38:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:25,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:25,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:25,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:38:25,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:25,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:38:25,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:25,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:25,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:25,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 17:38:25,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:25,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:25,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-28 17:38:25,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:25,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:25,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:25,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:25,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:25,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:38:25,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:25,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:25,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:25,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:38:25,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:25,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 17:38:25,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-28 17:38:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:25,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:25,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:25,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:25,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:25,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:38:25,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:25,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:25,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:25,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:38:25,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:25,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:25,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 17:38:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:25,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:25,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:25,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:25,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:25,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:38:25,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:25,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:25,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:25,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:38:25,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:25,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:25,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-28 17:38:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:25,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:25,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:25,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:25,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:25,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:38:25,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:25,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:25,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:25,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:38:25,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:25,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:25,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-28 17:38:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:25,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:25,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:25,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:25,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:25,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:38:25,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:25,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:25,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:25,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:38:25,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:25,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:25,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:38:25,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1451124933] [2020-10-28 17:38:25,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:38:25,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 17:38:25,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023891830] [2020-10-28 17:38:25,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 17:38:25,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:38:25,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 17:38:25,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 17:38:25,545 INFO L87 Difference]: Start difference. First operand 345 states. Second operand 7 states. [2020-10-28 17:38:26,727 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:38:27,213 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:38:27,710 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:38:28,206 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:38:28,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:38:28,807 INFO L93 Difference]: Finished difference Result 513 states and 861 transitions. [2020-10-28 17:38:28,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 17:38:28,810 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 105 [2020-10-28 17:38:28,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:38:28,830 INFO L225 Difference]: With dead ends: 513 [2020-10-28 17:38:28,830 INFO L226 Difference]: Without dead ends: 369 [2020-10-28 17:38:28,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:38:28,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2020-10-28 17:38:28,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 337. [2020-10-28 17:38:28,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-10-28 17:38:28,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 580 transitions. [2020-10-28 17:38:28,947 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 580 transitions. Word has length 105 [2020-10-28 17:38:28,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:38:28,948 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 580 transitions. [2020-10-28 17:38:28,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 17:38:28,949 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 580 transitions. [2020-10-28 17:38:28,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-28 17:38:28,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:38:28,952 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:38:28,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 17:38:28,952 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:38:28,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:38:28,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1286050652, now seen corresponding path program 1 times [2020-10-28 17:38:28,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:38:28,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549528587] [2020-10-28 17:38:28,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:38:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:29,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:30,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:30,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:38:30,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:30,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1476 [2020-10-28 17:38:30,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:30,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:30,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:38:30,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-28 17:38:30,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:38:30,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:31,150 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:38:31,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:38:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:31,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:31,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:31,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:38:31,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:31,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 17:38:31,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:31,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:31,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:31,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:31,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:31,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:31,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:38:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:31,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:31,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:31,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-28 17:38:31,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:31,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-28 17:38:31,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:31,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:31,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:38:31,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:31,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 17:38:31,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 17:38:31,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 17:38:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:31,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:31,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:31,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:38:31,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:31,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:38:31,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:31,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:31,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:38:31,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:38:31,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:38:31,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:31,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-28 17:38:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:31,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:31,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:31,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:31,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:31,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:38:31,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:31,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:31,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:31,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:38:31,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:31,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 17:38:31,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-28 17:38:31,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:31,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:31,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:31,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:31,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:31,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:38:31,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:31,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:31,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:31,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:38:31,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:31,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:31,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 17:38:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:31,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:31,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:31,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:31,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:31,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:38:31,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:31,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:38:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:31,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:31,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-28 17:38:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:31,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:31,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:31,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:31,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:31,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:38:31,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:31,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:31,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:31,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:38:31,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:31,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:31,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-28 17:38:31,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:31,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:31,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:31,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:31,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:31,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:38:31,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:31,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:31,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:31,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:38:31,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:31,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:32,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:38:32,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549528587] [2020-10-28 17:38:32,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:38:32,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 17:38:32,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596898342] [2020-10-28 17:38:32,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 17:38:32,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:38:32,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 17:38:32,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-28 17:38:32,009 INFO L87 Difference]: Start difference. First operand 337 states and 580 transitions. Second operand 13 states. [2020-10-28 17:38:35,015 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-28 17:38:35,751 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 275 [2020-10-28 17:38:36,504 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 271 [2020-10-28 17:38:37,077 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:38:37,884 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:38:38,431 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:38:39,011 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:38:39,617 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:38:40,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:38:40,441 INFO L93 Difference]: Finished difference Result 508 states and 849 transitions. [2020-10-28 17:38:40,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 17:38:40,442 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 105 [2020-10-28 17:38:40,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:38:40,449 INFO L225 Difference]: With dead ends: 508 [2020-10-28 17:38:40,449 INFO L226 Difference]: Without dead ends: 369 [2020-10-28 17:38:40,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-28 17:38:40,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2020-10-28 17:38:40,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 337. [2020-10-28 17:38:40,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-10-28 17:38:40,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 538 transitions. [2020-10-28 17:38:40,533 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 538 transitions. Word has length 105 [2020-10-28 17:38:40,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:38:40,536 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 538 transitions. [2020-10-28 17:38:40,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 17:38:40,536 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 538 transitions. [2020-10-28 17:38:40,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-28 17:38:40,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:38:40,545 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:38:40,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 17:38:40,545 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:38:40,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:38:40,546 INFO L82 PathProgramCache]: Analyzing trace with hash 317206157, now seen corresponding path program 1 times [2020-10-28 17:38:40,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:38:40,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1492717660] [2020-10-28 17:38:40,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:38:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:40,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:40,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:41,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:42,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:43,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:45,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:45,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-28 17:38:45,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:38:45,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-28 17:38:45,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:45,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:45,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:38:45,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-28 17:38:45,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 17:38:45,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:46,318 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:38:46,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:38:46,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:46,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:46,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:46,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:38:46,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:46,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:38:46,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:46,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:46,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:46,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:46,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:46,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:46,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:38:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:46,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:46,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:46,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 17:38:46,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:46,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-28 17:38:46,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:46,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-28 17:38:46,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:46,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:38:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:46,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:46,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:46,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:38:46,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:46,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:38:46,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:46,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:46,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:46,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:46,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:38:46,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:46,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-28 17:38:46,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:46,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:46,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:46,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:46,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:46,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:38:46,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:46,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:46,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:46,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:46,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:38:46,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:38:46,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:38:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:46,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:46,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:46,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:46,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:46,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:38:46,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:46,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:46,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:46,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:46,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:38:46,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:46,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-28 17:38:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:46,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:46,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:46,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:46,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:46,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:38:46,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:46,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:46,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:46,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:46,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:38:46,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:46,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 17:38:46,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:46,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:46,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:46,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:46,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:46,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 17:38:46,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:46,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:46,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:38:46,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:38:46,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:38:46,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:46,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 17:38:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:46,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:46,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:46,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:46,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:46,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:38:46,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:46,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:46,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:46,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:38:46,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:46,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:46,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:38:46,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1492717660] [2020-10-28 17:38:46,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:38:46,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:38:46,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53228836] [2020-10-28 17:38:46,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:38:46,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:38:46,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:38:46,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:38:46,955 INFO L87 Difference]: Start difference. First operand 337 states and 538 transitions. Second operand 10 states. [2020-10-28 17:38:47,630 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-28 17:38:49,925 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-28 17:38:50,417 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-28 17:38:50,955 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-28 17:38:51,518 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:38:51,759 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-28 17:38:52,756 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:38:53,103 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:38:53,482 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:38:53,858 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:38:54,431 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2020-10-28 17:38:54,619 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-28 17:38:54,836 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-28 17:38:54,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:38:54,988 INFO L93 Difference]: Finished difference Result 673 states and 1070 transitions. [2020-10-28 17:38:54,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 17:38:54,988 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 146 [2020-10-28 17:38:54,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:38:54,995 INFO L225 Difference]: With dead ends: 673 [2020-10-28 17:38:54,995 INFO L226 Difference]: Without dead ends: 540 [2020-10-28 17:38:54,997 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:38:54,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2020-10-28 17:38:55,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 469. [2020-10-28 17:38:55,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-10-28 17:38:55,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 751 transitions. [2020-10-28 17:38:55,066 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 751 transitions. Word has length 146 [2020-10-28 17:38:55,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:38:55,067 INFO L481 AbstractCegarLoop]: Abstraction has 469 states and 751 transitions. [2020-10-28 17:38:55,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:38:55,067 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 751 transitions. [2020-10-28 17:38:55,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-28 17:38:55,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:38:55,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:38:55,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 17:38:55,071 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:38:55,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:38:55,072 INFO L82 PathProgramCache]: Analyzing trace with hash -2062583416, now seen corresponding path program 1 times [2020-10-28 17:38:55,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:38:55,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1211068664] [2020-10-28 17:38:55,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:38:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:55,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:55,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:55,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:55,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:56,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:00,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:00,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-28 17:39:00,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:39:00,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-28 17:39:00,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:00,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:00,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:39:00,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:39:00,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-28 17:39:00,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:00,758 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:39:00,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:39:00,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:00,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:00,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:00,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:39:00,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:00,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 17:39:00,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:00,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:00,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:39:00,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:00,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:39:00,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:00,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:39:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:00,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:01,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:01,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 17:39:01,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:01,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-28 17:39:01,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:01,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:01,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:39:01,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:01,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:39:01,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:01,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:39:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:01,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:01,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:01,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:39:01,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:01,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:39:01,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:01,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:01,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:01,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:01,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:39:01,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:01,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-28 17:39:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:01,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:01,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:01,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:01,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:01,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:39:01,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:01,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:01,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:01,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:01,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:39:01,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:01,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:39:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:01,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:01,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:01,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:01,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:01,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:39:01,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:01,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:01,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:01,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:01,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:39:01,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:01,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-28 17:39:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:01,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:01,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:01,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:01,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:01,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:39:01,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:01,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:01,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:01,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:01,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:39:01,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:01,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 17:39:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:01,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:01,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:01,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:39:01,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:01,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:39:01,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:01,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:01,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:01,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 17:39:01,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:39:01,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:01,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-28 17:39:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:01,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:01,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:01,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:01,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:01,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:39:01,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:01,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:01,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:39:01,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:39:01,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:39:01,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:01,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:39:01,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1211068664] [2020-10-28 17:39:01,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:39:01,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:39:01,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103162223] [2020-10-28 17:39:01,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:39:01,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:39:01,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:39:01,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:39:01,448 INFO L87 Difference]: Start difference. First operand 469 states and 751 transitions. Second operand 10 states. [2020-10-28 17:39:02,200 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-28 17:39:02,828 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2020-10-28 17:39:03,718 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2020-10-28 17:39:04,352 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:39:08,159 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:39:08,558 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:08,856 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:09,452 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:09,858 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:10,466 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:10,885 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:11,571 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:11,914 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:13,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:39:13,033 INFO L93 Difference]: Finished difference Result 1452 states and 2319 transitions. [2020-10-28 17:39:13,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 17:39:13,034 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 149 [2020-10-28 17:39:13,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:39:13,041 INFO L225 Difference]: With dead ends: 1452 [2020-10-28 17:39:13,041 INFO L226 Difference]: Without dead ends: 1032 [2020-10-28 17:39:13,044 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:39:13,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2020-10-28 17:39:13,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 924. [2020-10-28 17:39:13,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 924 states. [2020-10-28 17:39:13,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1465 transitions. [2020-10-28 17:39:13,170 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1465 transitions. Word has length 149 [2020-10-28 17:39:13,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:39:13,172 INFO L481 AbstractCegarLoop]: Abstraction has 924 states and 1465 transitions. [2020-10-28 17:39:13,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:39:13,172 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1465 transitions. [2020-10-28 17:39:13,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-28 17:39:13,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:39:13,176 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:39:13,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 17:39:13,176 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:39:13,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:39:13,177 INFO L82 PathProgramCache]: Analyzing trace with hash -231197505, now seen corresponding path program 1 times [2020-10-28 17:39:13,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:39:13,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1738057536] [2020-10-28 17:39:13,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:39:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:13,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:13,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:13,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:13,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:14,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:18,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:18,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-28 17:39:18,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:39:18,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-28 17:39:18,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:18,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:39:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:39:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-28 17:39:18,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:18,949 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:39:18,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:39:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:18,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:18,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:18,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:39:18,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:18,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:39:18,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:18,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:18,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:39:18,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:18,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:39:18,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:39:18,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:39:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:19,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:19,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:19,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 17:39:19,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:19,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-28 17:39:19,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:19,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:19,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:39:19,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:19,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:39:19,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:19,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:39:19,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:19,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:19,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:19,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:39:19,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:19,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:39:19,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:19,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:19,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:19,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:19,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:39:19,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:19,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-28 17:39:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:19,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:19,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:19,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:19,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:19,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:39:19,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:19,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:19,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:19,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:19,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:39:19,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:19,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:39:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:19,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:19,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:19,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:19,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:19,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:39:19,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:19,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:19,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:19,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:19,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:39:19,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:39:19,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-28 17:39:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:19,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:19,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:19,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:19,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:19,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:39:19,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:19,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:19,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:19,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:19,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:39:19,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:19,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 17:39:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:19,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:19,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:19,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 17:39:19,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:19,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:39:19,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:19,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:19,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:19,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 17:39:19,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:39:19,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:19,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-28 17:39:19,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:19,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:19,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:19,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:19,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:19,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:39:19,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:19,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:19,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:39:19,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:39:19,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:39:19,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:19,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:39:19,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1738057536] [2020-10-28 17:39:19,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:39:19,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:39:19,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21343209] [2020-10-28 17:39:19,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:39:19,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:39:19,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:39:19,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:39:19,694 INFO L87 Difference]: Start difference. First operand 924 states and 1465 transitions. Second operand 10 states. [2020-10-28 17:39:20,328 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-28 17:39:20,987 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2020-10-28 17:39:21,678 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-28 17:39:23,684 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 280 DAG size of output: 276 [2020-10-28 17:39:28,414 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:39:28,812 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:29,121 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:39:29,579 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:29,827 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:30,358 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:39:30,926 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:31,227 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:31,781 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:39:32,410 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:32,790 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:33,245 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:39:33,529 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:35,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:39:35,240 INFO L93 Difference]: Finished difference Result 3515 states and 5553 transitions. [2020-10-28 17:39:35,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 17:39:35,243 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 151 [2020-10-28 17:39:35,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:39:35,258 INFO L225 Difference]: With dead ends: 3515 [2020-10-28 17:39:35,258 INFO L226 Difference]: Without dead ends: 2652 [2020-10-28 17:39:35,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-28 17:39:35,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2652 states. [2020-10-28 17:39:35,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2652 to 2398. [2020-10-28 17:39:35,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2398 states. [2020-10-28 17:39:35,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2398 states to 2398 states and 3764 transitions. [2020-10-28 17:39:35,506 INFO L78 Accepts]: Start accepts. Automaton has 2398 states and 3764 transitions. Word has length 151 [2020-10-28 17:39:35,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:39:35,506 INFO L481 AbstractCegarLoop]: Abstraction has 2398 states and 3764 transitions. [2020-10-28 17:39:35,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:39:35,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2398 states and 3764 transitions. [2020-10-28 17:39:35,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-28 17:39:35,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:39:35,513 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:39:35,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 17:39:35,513 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:39:35,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:39:35,514 INFO L82 PathProgramCache]: Analyzing trace with hash -2058315933, now seen corresponding path program 1 times [2020-10-28 17:39:35,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:39:35,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297354673] [2020-10-28 17:39:35,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:39:35,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:35,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:35,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:35,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:36,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:36,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:40,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:40,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-28 17:39:40,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:39:40,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-28 17:39:40,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:40,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:40,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:39:40,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:39:40,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-28 17:39:40,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:41,256 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:39:41,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:39:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:41,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:41,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:41,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:39:41,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:41,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:39:41,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:41,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:41,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:39:41,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:41,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:39:41,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:41,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:39:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:41,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:41,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:41,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 17:39:41,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:41,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-28 17:39:41,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:41,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:41,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:39:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:39:41,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:41,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:39:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:41,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:41,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:41,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:39:41,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:41,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:39:41,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:41,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:41,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:41,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:41,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:39:41,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:41,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-28 17:39:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:41,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:41,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:41,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:41,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:41,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:39:41,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:41,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:41,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:41,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:41,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:39:41,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:41,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:39:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:41,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:41,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:41,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:41,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:41,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:39:41,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:41,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:41,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:41,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:41,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:39:41,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:41,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-28 17:39:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:41,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:41,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:41,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:41,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:41,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:39:41,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:41,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:41,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:41,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:41,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:39:41,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:41,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 17:39:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:41,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:41,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:41,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 17:39:41,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:41,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:39:41,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:41,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:41,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:41,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:39:41,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:39:41,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:41,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-28 17:39:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:41,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:41,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:41,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:41,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:41,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:39:41,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:41,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:41,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:39:41,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:39:41,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:39:41,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:41,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:39:41,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1297354673] [2020-10-28 17:39:41,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:39:41,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:39:41,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182868879] [2020-10-28 17:39:41,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:39:41,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:39:41,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:39:41,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:39:41,951 INFO L87 Difference]: Start difference. First operand 2398 states and 3764 transitions. Second operand 10 states. [2020-10-28 17:39:42,551 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-28 17:39:43,120 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2020-10-28 17:39:43,809 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2020-10-28 17:39:44,379 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:39:48,782 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:39:49,158 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:49,440 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:49,993 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:50,426 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:51,115 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:51,540 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:52,259 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:52,594 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:53,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:39:53,915 INFO L93 Difference]: Finished difference Result 7331 states and 11426 transitions. [2020-10-28 17:39:53,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 17:39:53,918 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 151 [2020-10-28 17:39:53,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:39:53,947 INFO L225 Difference]: With dead ends: 7331 [2020-10-28 17:39:53,947 INFO L226 Difference]: Without dead ends: 5221 [2020-10-28 17:39:53,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:39:53,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5221 states. [2020-10-28 17:39:54,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5221 to 4755. [2020-10-28 17:39:54,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4755 states. [2020-10-28 17:39:54,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4755 states to 4755 states and 7347 transitions. [2020-10-28 17:39:54,475 INFO L78 Accepts]: Start accepts. Automaton has 4755 states and 7347 transitions. Word has length 151 [2020-10-28 17:39:54,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:39:54,476 INFO L481 AbstractCegarLoop]: Abstraction has 4755 states and 7347 transitions. [2020-10-28 17:39:54,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:39:54,476 INFO L276 IsEmpty]: Start isEmpty. Operand 4755 states and 7347 transitions. [2020-10-28 17:39:54,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-28 17:39:54,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:39:54,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:39:54,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 17:39:54,488 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:39:54,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:39:54,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1798147382, now seen corresponding path program 1 times [2020-10-28 17:39:54,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:39:54,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755312312] [2020-10-28 17:39:54,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:39:54,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:54,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:54,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:54,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:55,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:55,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:59,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:59,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-28 17:39:59,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:39:59,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-28 17:39:59,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:59,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:59,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:39:59,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-28 17:39:59,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-28 17:39:59,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:00,288 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:40:00,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:40:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:00,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:00,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:00,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:40:00,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:00,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:40:00,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:00,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:00,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:40:00,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:00,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:40:00,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:00,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:40:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:00,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:00,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:00,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 17:40:00,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:00,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-28 17:40:00,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:00,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:00,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:40:00,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:00,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 17:40:00,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:00,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:40:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:00,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:00,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:00,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:40:00,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:00,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:40:00,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:00,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:00,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:40:00,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:00,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:40:00,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:00,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-28 17:40:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:00,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:00,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:00,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:40:00,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:00,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:40:00,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:00,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:00,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:40:00,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:00,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:40:00,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:00,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:40:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:00,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:00,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:00,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:40:00,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:00,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:40:00,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:00,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:00,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:40:00,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:00,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:40:00,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:00,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-28 17:40:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:00,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:00,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:00,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:40:00,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:00,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:40:00,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:00,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:00,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:40:00,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:40:00,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:40:00,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:00,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 17:40:00,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:00,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:00,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:00,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 17:40:00,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:00,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:40:00,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:00,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:00,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:40:00,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 17:40:00,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:40:00,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:00,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-28 17:40:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:00,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:00,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:00,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:40:00,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:00,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:40:00,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:00,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:00,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:40:00,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:40:00,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:40:00,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:00,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:40:00,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755312312] [2020-10-28 17:40:00,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:40:00,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:40:00,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80266059] [2020-10-28 17:40:00,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:40:00,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:40:00,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:40:00,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:40:00,886 INFO L87 Difference]: Start difference. First operand 4755 states and 7347 transitions. Second operand 10 states. [2020-10-28 17:40:01,522 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-28 17:40:03,992 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-28 17:40:04,518 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-28 17:40:05,148 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:40:05,423 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:40:05,869 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-28 17:40:06,065 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:40:07,250 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:40:07,571 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:40:07,952 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-28 17:40:08,588 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2020-10-28 17:40:08,782 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-28 17:40:09,038 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 17:40:09,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:40:09,207 INFO L93 Difference]: Finished difference Result 10791 states and 16725 transitions. [2020-10-28 17:40:09,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 17:40:09,213 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 152 [2020-10-28 17:40:09,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:40:09,250 INFO L225 Difference]: With dead ends: 10791 [2020-10-28 17:40:09,250 INFO L226 Difference]: Without dead ends: 8296 [2020-10-28 17:40:09,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:40:09,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8296 states. [2020-10-28 17:40:09,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8296 to 7287. [2020-10-28 17:40:09,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7287 states. [2020-10-28 17:40:10,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7287 states to 7287 states and 11299 transitions. [2020-10-28 17:40:10,024 INFO L78 Accepts]: Start accepts. Automaton has 7287 states and 11299 transitions. Word has length 152 [2020-10-28 17:40:10,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:40:10,025 INFO L481 AbstractCegarLoop]: Abstraction has 7287 states and 11299 transitions. [2020-10-28 17:40:10,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:40:10,025 INFO L276 IsEmpty]: Start isEmpty. Operand 7287 states and 11299 transitions. [2020-10-28 17:40:10,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-28 17:40:10,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:40:10,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:40:10,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 17:40:10,041 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:40:10,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:40:10,042 INFO L82 PathProgramCache]: Analyzing trace with hash -186497845, now seen corresponding path program 1 times [2020-10-28 17:40:10,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:40:10,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849734276] [2020-10-28 17:40:10,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:40:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:10,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:10,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:10,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:10,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:11,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:11,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:15,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:15,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-28 17:40:15,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 17:40:15,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-28 17:40:15,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:15,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:15,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:40:15,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:40:15,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-28 17:40:15,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:15,705 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:40:15,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:40:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:15,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:15,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:15,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:40:15,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:15,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:40:15,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:15,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:15,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:40:15,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:15,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:40:15,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:15,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:40:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:15,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:15,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:15,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 17:40:15,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:15,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-28 17:40:15,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:15,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:15,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:40:15,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:15,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 17:40:15,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:16,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:40:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:16,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:16,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:16,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:40:16,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:16,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:40:16,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:16,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:16,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:40:16,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:16,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:40:16,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:16,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-28 17:40:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:16,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:16,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:16,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:40:16,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:16,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:40:16,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:16,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:40:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:40:16,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:16,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:40:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:16,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:16,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:16,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:40:16,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:16,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:40:16,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:16,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:16,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:40:16,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:16,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:40:16,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:16,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-28 17:40:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:16,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:16,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:16,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:40:16,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:16,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:40:16,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:16,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:16,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:40:16,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 17:40:16,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:40:16,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:16,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-28 17:40:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:16,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:16,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:16,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 17:40:16,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:16,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:40:16,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:16,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:16,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:40:16,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 17:40:16,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:40:16,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:16,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-28 17:40:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:16,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:16,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:16,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:40:16,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:16,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:40:16,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:16,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:16,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:40:16,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:40:16,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:40:16,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:16,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:40:16,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1849734276] [2020-10-28 17:40:16,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:40:16,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:40:16,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772513113] [2020-10-28 17:40:16,311 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:40:16,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:40:16,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:40:16,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:40:16,312 INFO L87 Difference]: Start difference. First operand 7287 states and 11299 transitions. Second operand 10 states. [2020-10-28 17:40:16,965 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-28 17:40:17,579 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2020-10-28 17:40:18,815 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 280 DAG size of output: 276 [2020-10-28 17:40:19,457 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-28 17:40:25,878 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:40:26,271 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:40:26,577 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:40:27,017 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:40:27,261 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:40:27,761 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:40:28,351 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:40:28,745 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:40:29,265 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:40:29,699 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:40:30,268 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:40:30,458 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:40:30,726 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:40:32,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:40:32,690 INFO L93 Difference]: Finished difference Result 28715 states and 44540 transitions. [2020-10-28 17:40:32,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 17:40:32,691 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 155 [2020-10-28 17:40:32,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:40:32,782 INFO L225 Difference]: With dead ends: 28715 [2020-10-28 17:40:32,782 INFO L226 Difference]: Without dead ends: 21702 [2020-10-28 17:40:32,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-28 17:40:32,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21702 states. [2020-10-28 17:40:34,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21702 to 19541. [2020-10-28 17:40:34,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19541 states. [2020-10-28 17:40:34,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19541 states to 19541 states and 30090 transitions. [2020-10-28 17:40:34,499 INFO L78 Accepts]: Start accepts. Automaton has 19541 states and 30090 transitions. Word has length 155 [2020-10-28 17:40:34,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:40:34,500 INFO L481 AbstractCegarLoop]: Abstraction has 19541 states and 30090 transitions. [2020-10-28 17:40:34,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:40:34,500 INFO L276 IsEmpty]: Start isEmpty. Operand 19541 states and 30090 transitions. [2020-10-28 17:40:34,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-28 17:40:34,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:40:34,533 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:40:34,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 17:40:34,533 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:40:34,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:40:34,534 INFO L82 PathProgramCache]: Analyzing trace with hash -2045242814, now seen corresponding path program 1 times [2020-10-28 17:40:34,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:40:34,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [40906024] [2020-10-28 17:40:34,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:40:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:34,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:34,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:34,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:35,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:35,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:35,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:36,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:39,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:39,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-28 17:40:39,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 17:40:39,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-28 17:40:39,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:39,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:39,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:40:39,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:40:39,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-28 17:40:39,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:40,219 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:40:40,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:40:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:40,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:40,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:40,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:40:40,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:40,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:40:40,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:40,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:40,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:40:40,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:40,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:40:40,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:40,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:40:40,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:40,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:40,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:40,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 17:40:40,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:40,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-28 17:40:40,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:40,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:40,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:40:40,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:40,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-28 17:40:40,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:40,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:40:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:40,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:40,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:40,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:40:40,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:40,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:40:40,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:40,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:40,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:40:40,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:40,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:40:40,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:40,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-28 17:40:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:40,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:40,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:40,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:40:40,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:40,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:40:40,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:40,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:40,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:40:40,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:40,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:40:40,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:40,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:40:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:40,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:40,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:40,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:40:40,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:40,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:40:40,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:40,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:40,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:40:40,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:40,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:40:40,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:40,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-28 17:40:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:40,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:40,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:40,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 17:40:40,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:40,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:40:40,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:40,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:40,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:40:40,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:40:40,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:40:40,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:40,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-28 17:40:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:40,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:40,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:40,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 17:40:40,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:40,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:40:40,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:40,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:40,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:40:40,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 17:40:40,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:40:40,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:40,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-28 17:40:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:40,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:40,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:40,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:40:40,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:40,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:40:40,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:40,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:40,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:40:40,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:40:40,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:40:40,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:40,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:40:40,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [40906024] [2020-10-28 17:40:40,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:40:40,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:40:40,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690102137] [2020-10-28 17:40:40,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:40:40,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:40:40,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:40:40,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:40:40,712 INFO L87 Difference]: Start difference. First operand 19541 states and 30090 transitions. Second operand 10 states. [2020-10-28 17:40:41,337 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-28 17:40:41,926 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2020-10-28 17:40:42,687 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2020-10-28 17:40:43,358 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:40:48,687 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:40:49,122 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:40:49,415 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:40:49,919 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:40:50,355 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:40:51,002 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:40:51,380 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:40:52,110 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:40:52,375 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:40:54,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:40:54,629 INFO L93 Difference]: Finished difference Result 61405 states and 94531 transitions. [2020-10-28 17:40:54,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 17:40:54,630 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-28 17:40:54,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:40:54,782 INFO L225 Difference]: With dead ends: 61405 [2020-10-28 17:40:54,783 INFO L226 Difference]: Without dead ends: 42995 [2020-10-28 17:40:54,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:40:54,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42995 states. [2020-10-28 17:40:57,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42995 to 39026. [2020-10-28 17:40:57,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39026 states. [2020-10-28 17:40:57,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39026 states to 39026 states and 59391 transitions. [2020-10-28 17:40:57,844 INFO L78 Accepts]: Start accepts. Automaton has 39026 states and 59391 transitions. Word has length 157 [2020-10-28 17:40:57,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:40:57,844 INFO L481 AbstractCegarLoop]: Abstraction has 39026 states and 59391 transitions. [2020-10-28 17:40:57,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:40:57,844 INFO L276 IsEmpty]: Start isEmpty. Operand 39026 states and 59391 transitions. [2020-10-28 17:40:57,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-28 17:40:57,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:40:57,918 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:40:57,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 17:40:57,919 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:40:57,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:40:57,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1561629520, now seen corresponding path program 1 times [2020-10-28 17:40:57,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:40:57,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804725172] [2020-10-28 17:40:57,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:40:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:58,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:58,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:58,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:58,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:58,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:58,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:02,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:41:02,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-28 17:41:02,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 17:41:02,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-28 17:41:02,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:41:02,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:41:02,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:41:02,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:41:02,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-28 17:41:02,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:41:03,701 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:41:03,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:41:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:41:03,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:03,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:41:03,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:41:03,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:41:03,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:41:03,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:41:03,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:41:03,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:41:03,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:41:03,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:41:03,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:41:03,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:41:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:41:03,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:03,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:41:03,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 17:41:03,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:41:03,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-28 17:41:03,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:41:03,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:41:03,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:41:03,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:41:03,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:41:03,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:41:03,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:41:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:41:03,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:03,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:41:03,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:41:03,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:41:03,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:41:03,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:41:03,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:41:03,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:41:03,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:41:03,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:41:03,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:41:04,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-28 17:41:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:41:04,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:04,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:41:04,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:41:04,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:41:04,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:41:04,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:41:04,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:41:04,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:41:04,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:41:04,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:41:04,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:41:04,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:41:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:41:04,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:04,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:41:04,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:41:04,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:41:04,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:41:04,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:41:04,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:41:04,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:41:04,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:41:04,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:41:04,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:41:04,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-28 17:41:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:41:04,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:04,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:41:04,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 17:41:04,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:41:04,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:41:04,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:41:04,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:41:04,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:41:04,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:41:04,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 17:41:04,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:41:04,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-28 17:41:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:41:04,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:04,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:41:04,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 17:41:04,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:41:04,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:41:04,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:41:04,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:41:04,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:41:04,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:41:04,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:41:04,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:41:04,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-28 17:41:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:41:04,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:04,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:41:04,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:41:04,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:41:04,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:41:04,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:41:04,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:41:04,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:41:04,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:41:04,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:41:04,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:41:04,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:41:04,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804725172] [2020-10-28 17:41:04,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:41:04,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:41:04,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048403268] [2020-10-28 17:41:04,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:41:04,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:41:04,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:41:04,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:41:04,320 INFO L87 Difference]: Start difference. First operand 39026 states and 59391 transitions. Second operand 10 states. [2020-10-28 17:41:04,985 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-28 17:41:05,635 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2020-10-28 17:41:06,472 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-28 17:41:07,817 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 280 DAG size of output: 276 [2020-10-28 17:41:16,654 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:41:17,106 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:41:17,460 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:41:17,998 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:41:18,302 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:41:18,886 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:41:19,575 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:41:20,047 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:41:20,653 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:41:21,304 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:41:22,195 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:41:22,714 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:41:23,166 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:41:27,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:41:27,297 INFO L93 Difference]: Finished difference Result 148520 states and 225701 transitions. [2020-10-28 17:41:27,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 17:41:27,298 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-28 17:41:27,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:41:27,727 INFO L225 Difference]: With dead ends: 148520 [2020-10-28 17:41:27,727 INFO L226 Difference]: Without dead ends: 110181 [2020-10-28 17:41:27,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-28 17:41:27,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110181 states. [2020-10-28 17:41:36,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110181 to 100661. [2020-10-28 17:41:36,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100661 states. [2020-10-28 17:41:36,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100661 states to 100661 states and 151543 transitions. [2020-10-28 17:41:36,666 INFO L78 Accepts]: Start accepts. Automaton has 100661 states and 151543 transitions. Word has length 157 [2020-10-28 17:41:36,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:41:36,666 INFO L481 AbstractCegarLoop]: Abstraction has 100661 states and 151543 transitions. [2020-10-28 17:41:36,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:41:36,667 INFO L276 IsEmpty]: Start isEmpty. Operand 100661 states and 151543 transitions. [2020-10-28 17:41:37,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-28 17:41:37,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:41:37,016 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:41:37,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 17:41:37,016 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:41:37,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:41:37,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1443209215, now seen corresponding path program 1 times [2020-10-28 17:41:37,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:41:37,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [840424271] [2020-10-28 17:41:37,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:41:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:41:37,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:37,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:37,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:37,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:37,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:42,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:41:42,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-28 17:41:42,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:41:42,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-28 17:41:42,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:41:42,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:41:42,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:41:42,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:41:42,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-28 17:41:42,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:41:42,707 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:41:42,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:41:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:41:42,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:42,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:41:42,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:41:42,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:41:42,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:41:42,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:41:42,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:41:42,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:41:42,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:41:42,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:41:42,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:41:42,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:41:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:41:42,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:42,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:41:42,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 17:41:42,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:41:42,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-28 17:41:42,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:41:42,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:41:42,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:41:42,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:41:42,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:41:42,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:41:42,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:41:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:41:42,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:42,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:41:42,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:41:42,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:41:42,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:41:42,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:41:42,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:41:42,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:41:42,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:41:42,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:41:42,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:41:42,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-28 17:41:42,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:41:42,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:42,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:41:42,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:41:42,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:41:42,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:41:42,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:41:42,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:41:42,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:41:42,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:41:42,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:41:42,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:41:43,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:41:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:41:43,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:43,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:41:43,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:41:43,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:41:43,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:41:43,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:41:43,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:41:43,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:41:43,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:41:43,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:41:43,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:41:43,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-28 17:41:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:41:43,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:43,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:41:43,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 17:41:43,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:41:43,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:41:43,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:41:43,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:41:43,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:41:43,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 17:41:43,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:41:43,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:41:43,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-28 17:41:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:41:43,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:43,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:41:43,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:41:43,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:41:43,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:41:43,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:41:43,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:41:43,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:41:43,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 17:41:43,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:41:43,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:41:43,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-28 17:41:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:41:43,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:41:43,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:41:43,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:41:43,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:41:43,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:41:43,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:41:43,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:41:43,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:41:43,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:41:43,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:41:43,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:41:43,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:41:43,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [840424271] [2020-10-28 17:41:43,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:41:43,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:41:43,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585124848] [2020-10-28 17:41:43,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:41:43,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:41:43,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:41:43,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:41:43,229 INFO L87 Difference]: Start difference. First operand 100661 states and 151543 transitions. Second operand 10 states. [2020-10-28 17:41:43,908 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-28 17:41:44,605 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2020-10-28 17:41:45,527 WARN L193 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2020-10-28 17:41:46,169 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 274