/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_lcr.7.1.ufo.BOUNDED-14.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 17:46:36,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 17:46:36,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 17:46:36,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 17:46:36,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 17:46:36,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 17:46:36,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 17:46:36,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 17:46:36,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 17:46:36,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 17:46:36,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 17:46:36,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 17:46:36,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 17:46:36,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 17:46:36,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 17:46:36,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 17:46:36,945 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 17:46:36,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 17:46:36,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 17:46:36,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 17:46:36,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 17:46:36,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 17:46:36,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 17:46:36,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 17:46:36,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 17:46:36,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 17:46:36,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 17:46:36,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 17:46:36,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 17:46:36,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 17:46:36,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 17:46:36,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 17:46:36,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 17:46:36,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 17:46:36,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 17:46:36,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 17:46:36,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 17:46:36,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 17:46:36,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 17:46:36,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 17:46:36,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 17:46:37,004 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 17:46:37,051 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 17:46:37,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 17:46:37,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 17:46:37,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 17:46:37,053 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 17:46:37,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 17:46:37,053 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 17:46:37,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 17:46:37,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 17:46:37,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 17:46:37,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 17:46:37,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 17:46:37,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 17:46:37,055 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 17:46:37,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 17:46:37,055 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 17:46:37,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 17:46:37,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 17:46:37,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 17:46:37,056 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 17:46:37,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 17:46:37,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 17:46:37,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 17:46:37,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 17:46:37,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 17:46:37,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 17:46:37,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 17:46:37,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 17:46:37,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 17:46:37,058 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 17:46:37,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 17:46:37,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 17:46:37,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 17:46:37,428 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 17:46:37,428 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 17:46:37,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.7.1.ufo.BOUNDED-14.pals.c [2020-10-28 17:46:37,501 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c1da6b0b5/b50c29418941431cb34a693eafdb4b76/FLAGd2321338b [2020-10-28 17:46:38,155 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 17:46:38,156 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.7.1.ufo.BOUNDED-14.pals.c [2020-10-28 17:46:38,175 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c1da6b0b5/b50c29418941431cb34a693eafdb4b76/FLAGd2321338b [2020-10-28 17:46:38,412 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c1da6b0b5/b50c29418941431cb34a693eafdb4b76 [2020-10-28 17:46:38,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 17:46:38,424 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 17:46:38,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 17:46:38,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 17:46:38,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 17:46:38,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:46:38" (1/1) ... [2020-10-28 17:46:38,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19be3450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:46:38, skipping insertion in model container [2020-10-28 17:46:38,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:46:38" (1/1) ... [2020-10-28 17:46:38,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 17:46:38,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 17:46:38,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:46:38,835 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 17:46:38,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:46:39,006 INFO L208 MainTranslator]: Completed translation [2020-10-28 17:46:39,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:46:39 WrapperNode [2020-10-28 17:46:39,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 17:46:39,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 17:46:39,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 17:46:39,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 17:46:39,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:46:39" (1/1) ... [2020-10-28 17:46:39,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:46:39" (1/1) ... [2020-10-28 17:46:39,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:46:39" (1/1) ... [2020-10-28 17:46:39,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:46:39" (1/1) ... [2020-10-28 17:46:39,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:46:39" (1/1) ... [2020-10-28 17:46:39,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:46:39" (1/1) ... [2020-10-28 17:46:39,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:46:39" (1/1) ... [2020-10-28 17:46:39,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 17:46:39,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 17:46:39,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 17:46:39,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 17:46:39,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:46:39" (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 17:46:39,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 17:46:39,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 17:46:39,175 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 17:46:39,175 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 17:46:39,175 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-28 17:46:39,176 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-28 17:46:39,176 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-28 17:46:39,176 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-28 17:46:39,177 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-28 17:46:39,177 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-28 17:46:39,178 INFO L138 BoogieDeclarations]: Found implementation of procedure node7 [2020-10-28 17:46:39,178 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-28 17:46:39,178 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-28 17:46:39,178 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 17:46:39,179 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-28 17:46:39,180 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 17:46:39,180 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 17:46:39,180 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 17:46:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 17:46:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 17:46:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-28 17:46:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-28 17:46:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 17:46:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-28 17:46:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-28 17:46:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-28 17:46:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-28 17:46:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-28 17:46:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-28 17:46:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-28 17:46:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-28 17:46:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure node7 [2020-10-28 17:46:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-28 17:46:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-28 17:46:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 17:46:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 17:46:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 17:46:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 17:46:39,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 17:46:39,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 17:46:39,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 17:46:40,288 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 17:46:40,289 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 17:46:40,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:46:40 BoogieIcfgContainer [2020-10-28 17:46:40,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 17:46:40,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 17:46:40,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 17:46:40,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 17:46:40,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 05:46:38" (1/3) ... [2020-10-28 17:46:40,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e4d793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:46:40, skipping insertion in model container [2020-10-28 17:46:40,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:46:39" (2/3) ... [2020-10-28 17:46:40,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e4d793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:46:40, skipping insertion in model container [2020-10-28 17:46:40,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:46:40" (3/3) ... [2020-10-28 17:46:40,301 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals.c [2020-10-28 17:46:40,313 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 17:46:40,322 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 17:46:40,335 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 17:46:40,363 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 17:46:40,363 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 17:46:40,363 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 17:46:40,363 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 17:46:40,363 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 17:46:40,364 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 17:46:40,364 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 17:46:40,364 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 17:46:40,386 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states. [2020-10-28 17:46:40,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-28 17:46:40,398 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:46:40,399 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] [2020-10-28 17:46:40,400 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:46:40,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:46:40,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1657727978, now seen corresponding path program 1 times [2020-10-28 17:46:40,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:46:40,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1940826024] [2020-10-28 17:46:40,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:46:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:40,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:42,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:42,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 17:46:42,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:42,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1465 [2020-10-28 17:46:42,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:42,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:42,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:46:42,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 17:46:42,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:46:42,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 17:46:42,845 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-28 17:46:42,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:46:42,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:42,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:42,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:42,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:46:42,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:42,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 17:46:42,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:42,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:42,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:42,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:42,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:42,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:42,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:46:42,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:42,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:42,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:42,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:46:42,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:42,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:46:42,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:42,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:42,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:42,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:42,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:46:42,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:42,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 17:46:42,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:42,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:42,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:42,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:46:42,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:42,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:46:42,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:42,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:42,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:42,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:46:42,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:46:42,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:43,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 17:46:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:43,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:43,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:43,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:43,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:43,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:46:43,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:43,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:43,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:43,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:43,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:43,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:43,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-28 17:46:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:43,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:43,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:43,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:43,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:43,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:46:43,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:43,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:43,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:43,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:43,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:43,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:43,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-28 17:46:43,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:43,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:43,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:43,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:43,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:43,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:46:43,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:43,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:43,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:43,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:43,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:43,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:43,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 17:46:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:43,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:43,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:43,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:43,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:43,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:46:43,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:43,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:43,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:43,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:43,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:43,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:43,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 17:46:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:43,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:43,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:43,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:43,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:43,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:46:43,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:43,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:43,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:43,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:43,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:43,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:43,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-28 17:46:43,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:43,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:43,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:43,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:43,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:43,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:46:43,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:43,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:43,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:43,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:43,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:43,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:43,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-28 17:46:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:43,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:43,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:43,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:43,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:43,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:46:43,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:43,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:43,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:43,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:43,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:43,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:43,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-28 17:46:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:43,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:43,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:43,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:46:43,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:43,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:46:43,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:43,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:43,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:43,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:46:43,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:43,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:43,560 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 17:46:43,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1940826024] [2020-10-28 17:46:43,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:46:43,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-28 17:46:43,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71039108] [2020-10-28 17:46:43,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-28 17:46:43,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:46:43,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-28 17:46:43,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-10-28 17:46:43,587 INFO L87 Difference]: Start difference. First operand 175 states. Second operand 16 states. [2020-10-28 17:46:44,259 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-28 17:46:44,612 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-28 17:46:45,187 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-28 17:46:45,585 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 17:46:47,928 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 17:46:48,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:46:48,865 INFO L93 Difference]: Finished difference Result 300 states and 451 transitions. [2020-10-28 17:46:48,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-28 17:46:48,867 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 82 [2020-10-28 17:46:48,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:46:48,889 INFO L225 Difference]: With dead ends: 300 [2020-10-28 17:46:48,890 INFO L226 Difference]: Without dead ends: 180 [2020-10-28 17:46:48,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=175, Invalid=527, Unknown=0, NotChecked=0, Total=702 [2020-10-28 17:46:48,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-28 17:46:49,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 167. [2020-10-28 17:46:49,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-10-28 17:46:49,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 207 transitions. [2020-10-28 17:46:49,005 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 207 transitions. Word has length 82 [2020-10-28 17:46:49,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:46:49,005 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 207 transitions. [2020-10-28 17:46:49,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-28 17:46:49,005 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 207 transitions. [2020-10-28 17:46:49,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-28 17:46:49,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:46:49,012 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] [2020-10-28 17:46:49,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 17:46:49,012 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:46:49,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:46:49,013 INFO L82 PathProgramCache]: Analyzing trace with hash 2029753397, now seen corresponding path program 1 times [2020-10-28 17:46:49,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:46:49,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [172011374] [2020-10-28 17:46:49,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:46:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:49,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:49,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:49,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:49,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:52,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:54,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:54,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 17:46:54,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:46:54,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-28 17:46:54,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:54,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:54,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:54,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-28 17:46:54,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 17:46:54,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:54,442 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-28 17:46:54,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:46:54,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:54,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:54,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:54,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:46:54,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:54,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 17:46:54,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:54,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:54,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:54,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:54,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:54,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:54,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:46:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:54,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:54,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:54,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-28 17:46:54,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:54,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 17:46:54,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:54,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:54,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:54,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:54,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:46:54,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:54,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-28 17:46:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:54,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:54,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:54,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:46:54,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:54,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:46:54,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:54,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:54,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:54,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:54,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:46:54,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:54,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-28 17:46:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:54,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:54,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:54,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:54,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:54,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:46:54,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:54,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:54,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:54,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:54,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:54,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:54,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-28 17:46:54,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:54,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:54,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:54,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:54,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:54,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:46:54,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:54,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:54,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:54,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:54,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:54,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:54,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-28 17:46:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:54,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:54,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:54,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:54,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:54,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:46:54,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:54,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:54,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:54,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:54,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:54,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:54,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-28 17:46:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:54,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:54,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:54,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:54,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:54,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:46:54,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:54,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:54,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:54,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:54,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:54,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:54,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-28 17:46:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:54,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:54,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:54,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:54,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:54,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:46:54,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:54,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:54,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:54,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:46:54,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:46:54,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:54,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-28 17:46:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:54,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:54,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:54,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:54,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:54,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:46:54,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:54,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:54,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:54,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:54,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:54,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:54,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-28 17:46:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:54,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:54,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:54,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:54,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:54,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:46:54,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:54,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:54,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:54,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:54,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:54,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:54,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-28 17:46:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:54,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:54,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:54,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:46:54,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:54,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:46:54,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:54,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:54,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:54,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:46:54,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:54,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:54,992 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 17:46:54,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [172011374] [2020-10-28 17:46:54,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:46:54,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 17:46:54,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158737529] [2020-10-28 17:46:54,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 17:46:54,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:46:54,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 17:46:54,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-28 17:46:54,997 INFO L87 Difference]: Start difference. First operand 167 states and 207 transitions. Second operand 13 states. [2020-10-28 17:46:55,371 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-28 17:46:55,844 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 17:46:56,080 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:46:56,304 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:46:56,536 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:46:58,188 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-28 17:46:58,334 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:46:58,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:46:58,923 INFO L93 Difference]: Finished difference Result 359 states and 477 transitions. [2020-10-28 17:46:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-28 17:46:58,924 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 131 [2020-10-28 17:46:58,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:46:58,930 INFO L225 Difference]: With dead ends: 359 [2020-10-28 17:46:58,930 INFO L226 Difference]: Without dead ends: 260 [2020-10-28 17:46:58,932 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2020-10-28 17:46:58,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-28 17:46:58,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 257. [2020-10-28 17:46:58,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-10-28 17:46:58,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 334 transitions. [2020-10-28 17:46:58,977 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 334 transitions. Word has length 131 [2020-10-28 17:46:58,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:46:58,978 INFO L481 AbstractCegarLoop]: Abstraction has 257 states and 334 transitions. [2020-10-28 17:46:58,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 17:46:58,978 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 334 transitions. [2020-10-28 17:46:58,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-28 17:46:58,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:46:58,982 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] [2020-10-28 17:46:58,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 17:46:58,982 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:46:58,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:46:58,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1255140353, now seen corresponding path program 1 times [2020-10-28 17:46:58,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:46:58,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1373769999] [2020-10-28 17:46:58,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:46:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:59,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:59,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:59,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:59,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:04,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:04,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 17:47:04,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 17:47:04,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-28 17:47:04,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:04,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:04,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:04,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-28 17:47:04,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 17:47:04,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:04,387 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-28 17:47:04,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:47:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:04,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:04,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:04,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:47:04,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:04,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:47:04,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:04,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:04,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:04,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:04,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:04,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:04,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:47:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:04,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:04,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:04,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-28 17:47:04,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:04,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 17:47:04,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:04,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:04,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:04,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:04,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 17:47:04,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:04,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-28 17:47:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:04,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:04,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:04,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:47:04,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:04,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:04,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:04,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:04,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:04,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:04,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:47:04,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:47:04,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-28 17:47:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:04,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:04,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:04,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:04,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:04,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:47:04,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:04,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:04,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:04,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:04,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:04,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:04,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-28 17:47:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:04,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:04,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:04,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:04,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:04,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:47:04,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:04,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:04,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:04,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:04,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:04,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:04,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-28 17:47:04,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:04,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:04,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:04,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:04,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:04,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:47:04,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:04,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:04,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:04,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:04,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:04,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:04,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-28 17:47:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:04,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:04,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:04,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:04,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:04,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:47:04,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:04,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:04,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:04,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:04,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:04,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:04,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-28 17:47:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:04,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:04,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:04,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:04,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:04,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:47:04,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:04,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:04,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:04,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:04,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:04,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:04,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-28 17:47:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:04,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:04,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:04,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:04,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:04,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:47:04,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:04,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:04,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:04,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:04,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:04,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:04,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-28 17:47:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:04,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:04,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:04,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:04,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:04,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:47:04,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:04,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:04,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:04,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:04,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:04,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-28 17:47:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:04,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:04,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:04,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:47:04,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:04,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:47:04,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:04,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:04,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:04,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:47:04,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:04,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:04,899 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 17:47:04,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1373769999] [2020-10-28 17:47:04,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:47:04,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 17:47:04,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104692709] [2020-10-28 17:47:04,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 17:47:04,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:47:04,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 17:47:04,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-28 17:47:04,903 INFO L87 Difference]: Start difference. First operand 257 states and 334 transitions. Second operand 13 states. [2020-10-28 17:47:05,338 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-28 17:47:06,297 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:47:08,099 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:47:08,252 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-28 17:47:08,446 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:47:08,708 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:47:08,938 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:47:09,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:47:09,230 INFO L93 Difference]: Finished difference Result 623 states and 850 transitions. [2020-10-28 17:47:09,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-28 17:47:09,231 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 131 [2020-10-28 17:47:09,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:47:09,236 INFO L225 Difference]: With dead ends: 623 [2020-10-28 17:47:09,236 INFO L226 Difference]: Without dead ends: 434 [2020-10-28 17:47:09,238 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2020-10-28 17:47:09,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-10-28 17:47:09,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 431. [2020-10-28 17:47:09,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2020-10-28 17:47:09,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 578 transitions. [2020-10-28 17:47:09,324 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 578 transitions. Word has length 131 [2020-10-28 17:47:09,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:47:09,325 INFO L481 AbstractCegarLoop]: Abstraction has 431 states and 578 transitions. [2020-10-28 17:47:09,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 17:47:09,325 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 578 transitions. [2020-10-28 17:47:09,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-28 17:47:09,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:47:09,334 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] [2020-10-28 17:47:09,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 17:47:09,335 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:47:09,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:47:09,335 INFO L82 PathProgramCache]: Analyzing trace with hash -2045684173, now seen corresponding path program 1 times [2020-10-28 17:47:09,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:47:09,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [663583736] [2020-10-28 17:47:09,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:47:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:09,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:09,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:09,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:10,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:14,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:14,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 17:47:14,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 17:47:14,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 17:47:14,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:14,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:14,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:14,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-28 17:47:14,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:47:14,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:14,717 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-28 17:47:14,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:47:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:14,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:14,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:14,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:47:14,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:14,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:47:14,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:14,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:14,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:14,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:14,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:14,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:14,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:47:14,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:14,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:14,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:14,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-28 17:47:14,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:14,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 17:47:14,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:14,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:14,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:14,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:14,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:14,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:14,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-28 17:47:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:14,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:14,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:14,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:47:14,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:14,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:14,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:14,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:14,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:14,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:14,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:47:14,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:14,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-28 17:47:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:14,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:14,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:14,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:14,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:14,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:47:14,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:14,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:14,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:14,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:14,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:14,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:14,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-28 17:47:14,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:14,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:14,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:14,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:14,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:14,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:47:14,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:14,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:14,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:14,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:14,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:14,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:14,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-28 17:47:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:14,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:14,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:14,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:14,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:14,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:47:14,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:14,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:14,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:14,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:14,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:14,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:14,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-28 17:47:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:14,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:14,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:14,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:14,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:14,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:14,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:14,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:14,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:14,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:14,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:14,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:15,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-28 17:47:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:15,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:15,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:15,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:15,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:15,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:47:15,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:15,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:15,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:15,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:15,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:15,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:15,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-28 17:47:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:15,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:15,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:15,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:15,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:15,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:15,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:15,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:15,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:15,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:15,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:15,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:15,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-28 17:47:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:15,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:15,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:15,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:15,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:15,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:47:15,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:15,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:15,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:15,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:15,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:15,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:15,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-28 17:47:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:15,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:15,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:15,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:47:15,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:15,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:47:15,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:15,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:15,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:15,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:47:15,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:15,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:15,206 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 17:47:15,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [663583736] [2020-10-28 17:47:15,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:47:15,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 17:47:15,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581635739] [2020-10-28 17:47:15,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 17:47:15,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:47:15,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 17:47:15,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-28 17:47:15,210 INFO L87 Difference]: Start difference. First operand 431 states and 578 transitions. Second operand 13 states. [2020-10-28 17:47:15,590 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-28 17:47:17,744 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-28 17:47:17,897 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:47:18,077 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:47:18,290 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:47:18,542 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:47:18,800 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:47:19,023 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:47:19,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:47:19,259 INFO L93 Difference]: Finished difference Result 1133 states and 1566 transitions. [2020-10-28 17:47:19,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-28 17:47:19,261 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 131 [2020-10-28 17:47:19,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:47:19,267 INFO L225 Difference]: With dead ends: 1133 [2020-10-28 17:47:19,267 INFO L226 Difference]: Without dead ends: 770 [2020-10-28 17:47:19,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2020-10-28 17:47:19,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2020-10-28 17:47:19,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 767. [2020-10-28 17:47:19,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 767 states. [2020-10-28 17:47:19,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1046 transitions. [2020-10-28 17:47:19,379 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1046 transitions. Word has length 131 [2020-10-28 17:47:19,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:47:19,380 INFO L481 AbstractCegarLoop]: Abstraction has 767 states and 1046 transitions. [2020-10-28 17:47:19,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 17:47:19,380 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1046 transitions. [2020-10-28 17:47:19,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-28 17:47:19,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:47:19,382 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] [2020-10-28 17:47:19,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 17:47:19,382 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:47:19,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:47:19,383 INFO L82 PathProgramCache]: Analyzing trace with hash 796358825, now seen corresponding path program 1 times [2020-10-28 17:47:19,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:47:19,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [383059760] [2020-10-28 17:47:19,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:47:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:19,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:19,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:19,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 17:47:24,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:47:24,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 17:47:24,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:24,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-28 17:47:24,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-28 17:47:24,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,747 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-28 17:47:24,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:47:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:47:24,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:47:24,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:24,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:24,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:24,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:47:24,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-28 17:47:24,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:47:24,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:24,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:24,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:47:24,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-28 17:47:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:47:24,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:47:24,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:24,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:24,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:47:24,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-28 17:47:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:24,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 17:47:24,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:24,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:24,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:24,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-28 17:47:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:24,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:24,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:24,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:24,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:24,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:24,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-28 17:47:24,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:24,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:24,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:24,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:24,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:24,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:24,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:24,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:24,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:24,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:24,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:24,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:25,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-28 17:47:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:25,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:25,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:25,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:25,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:25,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:25,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:25,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:25,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:25,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:25,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:25,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:25,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-28 17:47:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:25,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:25,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:25,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:25,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:25,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:25,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:25,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:25,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:25,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:25,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:25,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:25,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-28 17:47:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:25,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:25,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:25,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:25,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:25,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:47:25,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:25,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:25,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:25,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:25,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:25,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:25,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-28 17:47:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:25,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:25,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:25,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:25,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:25,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:25,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:25,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:25,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:25,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:25,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:25,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:25,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-28 17:47:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:25,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:25,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:25,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:47:25,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:25,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:47:25,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:25,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:25,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:25,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:47:25,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:25,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:25,179 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 17:47:25,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [383059760] [2020-10-28 17:47:25,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:47:25,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 17:47:25,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630874743] [2020-10-28 17:47:25,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 17:47:25,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:47:25,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 17:47:25,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-28 17:47:25,182 INFO L87 Difference]: Start difference. First operand 767 states and 1046 transitions. Second operand 13 states. [2020-10-28 17:47:25,569 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-28 17:47:27,204 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 17:47:27,621 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:47:27,783 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 17:47:27,993 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:47:28,266 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:47:28,503 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:47:28,771 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:47:29,045 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:47:29,286 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:47:29,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:47:29,638 INFO L93 Difference]: Finished difference Result 2117 states and 2938 transitions. [2020-10-28 17:47:29,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-28 17:47:29,638 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 131 [2020-10-28 17:47:29,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:47:29,655 INFO L225 Difference]: With dead ends: 2117 [2020-10-28 17:47:29,655 INFO L226 Difference]: Without dead ends: 1418 [2020-10-28 17:47:29,658 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2020-10-28 17:47:29,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2020-10-28 17:47:29,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1415. [2020-10-28 17:47:29,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1415 states. [2020-10-28 17:47:29,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1942 transitions. [2020-10-28 17:47:29,836 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1942 transitions. Word has length 131 [2020-10-28 17:47:29,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:47:29,837 INFO L481 AbstractCegarLoop]: Abstraction has 1415 states and 1942 transitions. [2020-10-28 17:47:29,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 17:47:29,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1942 transitions. [2020-10-28 17:47:29,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-28 17:47:29,839 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:47:29,839 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] [2020-10-28 17:47:29,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 17:47:29,840 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:47:29,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:47:29,840 INFO L82 PathProgramCache]: Analyzing trace with hash 847077109, now seen corresponding path program 1 times [2020-10-28 17:47:29,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:47:29,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1564377512] [2020-10-28 17:47:29,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:47:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:29,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:29,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:30,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:34,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:34,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 17:47:34,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:47:34,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-28 17:47:34,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:34,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:34,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:47:34,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 17:47:34,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-28 17:47:34,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:35,359 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-28 17:47:35,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:47:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:35,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:35,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:35,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:47:35,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:35,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 17:47:35,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:35,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:35,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:35,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:35,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 17:47:35,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:47:35,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:47:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:35,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:35,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:35,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-28 17:47:35,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:35,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 17:47:35,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:35,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:35,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:35,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:35,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-28 17:47:35,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:35,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-28 17:47:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:35,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:35,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:35,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:47:35,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:35,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:35,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:35,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:35,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:35,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:35,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:47:35,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:47:35,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-28 17:47:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:35,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:35,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:35,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:35,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:35,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:47:35,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:35,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:35,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:35,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:35,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:35,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:47:35,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-28 17:47:35,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:35,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:35,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:35,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:35,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:35,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:47:35,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:35,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:35,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:35,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:35,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:35,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:35,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-28 17:47:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:35,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:35,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:35,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:35,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:35,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:47:35,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:35,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:35,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:35,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:35,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:47:35,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:35,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-28 17:47:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:35,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:35,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:35,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:35,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:35,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:47:35,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:35,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:35,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:35,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:35,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:35,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:35,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-28 17:47:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:35,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:35,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:35,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:35,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:35,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:47:35,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:35,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:35,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:35,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:35,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:35,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:35,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-28 17:47:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:35,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:35,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:35,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:35,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:35,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:35,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:35,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:35,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:35,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:35,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:35,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:35,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-28 17:47:35,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:35,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:35,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:35,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:35,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:35,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:35,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:35,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:35,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:35,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:35,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:35,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:35,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-28 17:47:35,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:35,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:35,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:35,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:47:35,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:35,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:47:35,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:35,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:35,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:35,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:47:35,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:35,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:47:35,972 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 17:47:35,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1564377512] [2020-10-28 17:47:35,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:47:35,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-28 17:47:35,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075006735] [2020-10-28 17:47:35,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-28 17:47:35,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:47:35,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-28 17:47:35,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-10-28 17:47:35,981 INFO L87 Difference]: Start difference. First operand 1415 states and 1942 transitions. Second operand 17 states. [2020-10-28 17:47:36,445 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-28 17:47:36,795 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-28 17:47:37,200 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-28 17:47:37,846 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-28 17:47:37,984 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:47:38,161 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:47:38,340 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:47:38,937 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:47:39,178 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:47:39,759 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:47:39,946 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:47:40,171 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:47:40,460 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:47:40,713 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:47:40,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:47:40,907 INFO L93 Difference]: Finished difference Result 2786 states and 3856 transitions. [2020-10-28 17:47:40,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 17:47:40,908 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 131 [2020-10-28 17:47:40,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:47:40,918 INFO L225 Difference]: With dead ends: 2786 [2020-10-28 17:47:40,919 INFO L226 Difference]: Without dead ends: 1439 [2020-10-28 17:47:40,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=328, Invalid=862, Unknown=0, NotChecked=0, Total=1190 [2020-10-28 17:47:40,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2020-10-28 17:47:41,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1415. [2020-10-28 17:47:41,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1415 states. [2020-10-28 17:47:41,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1934 transitions. [2020-10-28 17:47:41,098 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1934 transitions. Word has length 131 [2020-10-28 17:47:41,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:47:41,098 INFO L481 AbstractCegarLoop]: Abstraction has 1415 states and 1934 transitions. [2020-10-28 17:47:41,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-28 17:47:41,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1934 transitions. [2020-10-28 17:47:41,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-28 17:47:41,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:47:41,100 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:47:41,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 17:47:41,101 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:47:41,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:47:41,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1876436407, now seen corresponding path program 1 times [2020-10-28 17:47:41,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:47:41,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798361859] [2020-10-28 17:47:41,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:47:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:41,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:41,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:46,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:46,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 17:47:46,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:47:46,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-28 17:47:46,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:46,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:46,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:47:46,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 17:47:46,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-28 17:47:46,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:46,501 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-28 17:47:46,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:47:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:46,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:46,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:46,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:47:46,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:46,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 17:47:46,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:46,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:46,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:46,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:46,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 17:47:46,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:46,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:47:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:46,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:46,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:46,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-28 17:47:46,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:46,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 17:47:46,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:46,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:46,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:46,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:46,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-28 17:47:46,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:46,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-28 17:47:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:46,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:46,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:46,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:47:46,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:46,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:47:46,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:46,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:46,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:46,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:46,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:47:46,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:46,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-28 17:47:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:46,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:46,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:46,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:46,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:46,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:47:46,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:46,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:46,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:46,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:46,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:46,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:46,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-28 17:47:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:46,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:46,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:46,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:46,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:46,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:46,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:46,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:46,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:46,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:46,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:46,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:46,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-28 17:47:46,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:46,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:46,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:46,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:46,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:46,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:46,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:46,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:46,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:46,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:46,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:46,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:46,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-28 17:47:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:46,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:46,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:46,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:46,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:46,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:47:46,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:46,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:46,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:46,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:46,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:46,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:46,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-28 17:47:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:46,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:46,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:46,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:46,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:46,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:46,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:46,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:46,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:46,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:46,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:46,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:46,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-28 17:47:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:46,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:46,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:46,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:46,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:46,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:46,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:46,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:46,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:46,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:46,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:46,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:46,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-28 17:47:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:46,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:46,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:46,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:46,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:46,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:47:46,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:46,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:46,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:46,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:47:46,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:46,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:46,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-28 17:47:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:46,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:46,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:46,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:47:46,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:46,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:47:46,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:46,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:46,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:46,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:47:46,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:46,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:47,005 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 17:47:47,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798361859] [2020-10-28 17:47:47,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:47:47,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-28 17:47:47,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723912906] [2020-10-28 17:47:47,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-28 17:47:47,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:47:47,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-28 17:47:47,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-10-28 17:47:47,008 INFO L87 Difference]: Start difference. First operand 1415 states and 1934 transitions. Second operand 17 states. [2020-10-28 17:47:47,419 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-28 17:47:47,778 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-28 17:47:48,114 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-28 17:47:48,799 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-28 17:47:48,945 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:47:49,146 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:47:49,327 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:47:49,565 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:47:49,746 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:47:49,923 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:47:50,150 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:47:50,521 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 17:47:50,680 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:47:50,841 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:47:51,050 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:47:51,274 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:47:51,544 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:47:51,738 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:47:51,985 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:47:52,179 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:47:52,445 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:47:52,646 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:47:52,913 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:47:53,340 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:47:53,529 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:47:54,167 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-28 17:47:54,309 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:47:54,591 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:47:54,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:47:54,693 INFO L93 Difference]: Finished difference Result 4669 states and 6446 transitions. [2020-10-28 17:47:54,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-28 17:47:54,694 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 131 [2020-10-28 17:47:54,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:47:54,712 INFO L225 Difference]: With dead ends: 4669 [2020-10-28 17:47:54,712 INFO L226 Difference]: Without dead ends: 3322 [2020-10-28 17:47:54,717 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=578, Invalid=1774, Unknown=0, NotChecked=0, Total=2352 [2020-10-28 17:47:54,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3322 states. [2020-10-28 17:47:55,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3322 to 2807. [2020-10-28 17:47:55,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2807 states. [2020-10-28 17:47:55,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2807 states to 2807 states and 3846 transitions. [2020-10-28 17:47:55,040 INFO L78 Accepts]: Start accepts. Automaton has 2807 states and 3846 transitions. Word has length 131 [2020-10-28 17:47:55,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:47:55,040 INFO L481 AbstractCegarLoop]: Abstraction has 2807 states and 3846 transitions. [2020-10-28 17:47:55,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-28 17:47:55,040 INFO L276 IsEmpty]: Start isEmpty. Operand 2807 states and 3846 transitions. [2020-10-28 17:47:55,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-28 17:47:55,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:47:55,042 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] [2020-10-28 17:47:55,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 17:47:55,042 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:47:55,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:47:55,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1315736629, now seen corresponding path program 1 times [2020-10-28 17:47:55,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:47:55,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661694077] [2020-10-28 17:47:55,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:47:55,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:55,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:56,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:56,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 17:47:56,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:56,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 969 [2020-10-28 17:47:56,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:56,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:56,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-28 17:47:56,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 17:47:56,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-28 17:47:56,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:56,391 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-28 17:47:56,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:47:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:56,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:56,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:56,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:47:56,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:56,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:47:56,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:56,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:56,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:56,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:56,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:56,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:56,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:47:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:56,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:56,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:56,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-28 17:47:56,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:56,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 17:47:56,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:56,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:56,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:47:56,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:56,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:47:56,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:56,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-28 17:47:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:56,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:56,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:56,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:47:56,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:56,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:47:56,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:56,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:56,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:56,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:56,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:47:56,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:56,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-28 17:47:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:56,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:56,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:56,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:56,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:56,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:47:56,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:56,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:56,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:56,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:56,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:56,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:56,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-28 17:47:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:56,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:56,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:56,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:56,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:56,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:47:56,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:56,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:56,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:56,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:56,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:56,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:56,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-28 17:47:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:56,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:56,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:56,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:56,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:56,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:47:56,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:56,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:56,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:56,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:56,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:56,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:56,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-28 17:47:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:56,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:56,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:56,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:56,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:56,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:47:56,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:56,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:56,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:56,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:56,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:56,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:56,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-28 17:47:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:56,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:56,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:56,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:56,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:56,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:47:56,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:56,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:56,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:56,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:56,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:56,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:56,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-28 17:47:56,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:56,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:57,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:57,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:57,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:57,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:47:57,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:57,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:57,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:57,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:57,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:57,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:57,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-28 17:47:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:57,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:57,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:57,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:57,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:57,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:47:57,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:57,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:57,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:57,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:57,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:57,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:57,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-28 17:47:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:57,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:57,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:57,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:47:57,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:57,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:57,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:57,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:57,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:57,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 17:47:57,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:47:57,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:57,234 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 17:47:57,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661694077] [2020-10-28 17:47:57,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:47:57,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-28 17:47:57,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750671237] [2020-10-28 17:47:57,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-28 17:47:57,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:47:57,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-28 17:47:57,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2020-10-28 17:47:57,237 INFO L87 Difference]: Start difference. First operand 2807 states and 3846 transitions. Second operand 25 states. [2020-10-28 17:47:57,737 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-28 17:47:58,119 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-28 17:47:58,467 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-28 17:47:58,829 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-28 17:47:59,199 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-28 17:47:59,602 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-28 17:47:59,993 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-28 17:48:00,361 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:48:00,566 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:48:00,774 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 17:48:00,951 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:48:01,183 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 17:48:01,373 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:48:01,595 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 17:48:01,773 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:48:01,983 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 17:48:02,171 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:48:02,326 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:48:02,537 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:48:02,780 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 17:48:03,007 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:48:03,151 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:48:03,308 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:48:03,564 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:48:03,704 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:48:04,276 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-28 17:48:04,653 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-28 17:48:05,017 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-28 17:48:06,002 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:48:06,173 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:48:06,333 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:48:06,579 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:48:06,749 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 17:48:06,896 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 17:48:07,629 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 17:48:07,956 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-28 17:48:08,124 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:48:08,288 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:48:08,529 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:48:08,706 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:48:08,869 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:48:09,051 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:48:09,202 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:48:09,338 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:48:09,506 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:48:10,229 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-28 17:48:10,566 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-28 17:48:10,751 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-28 17:48:10,918 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:48:11,139 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 17:48:11,272 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:48:11,455 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:48:11,602 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:48:11,769 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:48:11,968 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:48:12,125 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:48:12,306 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:48:12,608 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:48:13,159 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-28 17:48:13,351 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-28 17:48:13,526 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:48:13,756 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 17:48:13,896 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:48:14,066 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:48:14,216 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:48:14,387 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:48:14,559 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:48:14,722 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:48:14,905 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:48:15,072 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:48:15,343 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:48:15,499 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 17:48:15,964 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-28 17:48:16,284 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-28 17:48:16,478 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-28 17:48:16,649 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:48:16,911 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:48:17,062 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 17:48:17,198 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:48:17,386 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:48:17,542 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:48:17,693 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:48:17,865 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:48:18,045 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:48:18,223 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 17:48:18,474 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:48:18,815 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:48:19,581 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-28 17:48:19,796 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-28 17:48:19,959 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:48:20,208 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:48:20,364 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:48:20,504 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 17:48:20,636 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:48:20,826 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:48:20,978 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:48:21,125 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:48:21,292 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:48:21,478 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:48:21,703 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:48:22,119 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 17:48:22,267 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:48:22,403 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:48:23,055 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-28 17:48:23,258 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-28 17:48:23,416 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:48:23,682 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:48:23,833 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:48:23,973 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 17:48:24,106 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:48:24,301 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:48:24,456 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:48:24,605 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:48:24,769 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:48:25,305 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 17:48:26,541 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-28 17:48:27,991 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:48:28,145 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 17:48:28,294 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:48:28,521 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:48:28,691 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:48:28,842 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:48:28,997 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 17:48:29,292 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:48:29,657 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:48:29,813 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:48:30,117 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:48:30,277 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:48:30,435 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 17:48:30,717 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:48:31,044 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:48:31,213 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:48:31,465 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:48:31,635 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:48:32,078 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:48:32,382 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:48:32,549 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:48:32,793 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:48:33,225 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:48:33,440 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:48:33,721 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:48:34,077 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:48:36,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:48:36,017 INFO L93 Difference]: Finished difference Result 46276 states and 65204 transitions. [2020-10-28 17:48:36,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2020-10-28 17:48:36,018 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 131 [2020-10-28 17:48:36,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:48:36,255 INFO L225 Difference]: With dead ends: 46276 [2020-10-28 17:48:36,255 INFO L226 Difference]: Without dead ends: 43537 [2020-10-28 17:48:36,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14018 ImplicationChecksByTransitivity, 25.9s TimeCoverageRelationStatistics Valid=5302, Invalid=29480, Unknown=0, NotChecked=0, Total=34782 [2020-10-28 17:48:36,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43537 states. [2020-10-28 17:48:40,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43537 to 42663. [2020-10-28 17:48:40,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42663 states. [2020-10-28 17:48:40,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42663 states to 42663 states and 58886 transitions. [2020-10-28 17:48:40,744 INFO L78 Accepts]: Start accepts. Automaton has 42663 states and 58886 transitions. Word has length 131 [2020-10-28 17:48:40,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:48:40,745 INFO L481 AbstractCegarLoop]: Abstraction has 42663 states and 58886 transitions. [2020-10-28 17:48:40,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-28 17:48:40,745 INFO L276 IsEmpty]: Start isEmpty. Operand 42663 states and 58886 transitions. [2020-10-28 17:48:40,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-28 17:48:40,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:48:40,747 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] [2020-10-28 17:48:40,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 17:48:40,748 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:48:40,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:48:40,748 INFO L82 PathProgramCache]: Analyzing trace with hash -323645499, now seen corresponding path program 1 times [2020-10-28 17:48:40,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:48:40,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525951786] [2020-10-28 17:48:40,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:48:40,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:40,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:41,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:41,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:41,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:41,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-28 17:48:41,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:48:41,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 785 [2020-10-28 17:48:41,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:41,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:41,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:48:41,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 148 [2020-10-28 17:48:41,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 17:48:41,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:41,877 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-28 17:48:41,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:48:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:41,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:41,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:41,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:48:41,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:41,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:48:41,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:41,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:41,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:48:41,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:48:41,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:48:41,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:41,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:48:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:41,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:41,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:41,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-28 17:48:41,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:41,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:48:41,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:41,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:41,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:48:41,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:48:41,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:48:41,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:41,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-28 17:48:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:41,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:41,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:41,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:48:41,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:41,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:48:41,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:41,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:41,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:48:41,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:48:41,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:48:41,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:41,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-28 17:48:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:41,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:41,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:41,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:48:41,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:41,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:48:41,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:41,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:41,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:48:41,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:48:41,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:48:41,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:41,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-28 17:48:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:41,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:41,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:41,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:48:41,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:41,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:48:41,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:41,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:41,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:48:41,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:48:41,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:48:41,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:41,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-28 17:48:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:41,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:42,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:42,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:48:42,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:42,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:48:42,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:42,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:42,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:48:42,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:48:42,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:48:42,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:42,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-28 17:48:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:42,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:42,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:42,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:48:42,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:42,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:48:42,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:42,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:42,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:48:42,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:48:42,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:48:42,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:42,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-28 17:48:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:42,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:42,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:42,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:48:42,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:42,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:48:42,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:42,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:48:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:48:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:48:42,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:42,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-28 17:48:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:42,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:42,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:42,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:48:42,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:42,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:48:42,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:42,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:42,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:48:42,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:48:42,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:48:42,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:42,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-28 17:48:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:42,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:42,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:42,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:48:42,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:42,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:48:42,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:42,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:42,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:48:42,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:48:42,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:48:42,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:42,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-28 17:48:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:42,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:42,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:42,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:48:42,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:42,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:48:42,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:42,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:42,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:48:42,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 17:48:42,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 17:48:42,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:42,161 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 17:48:42,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525951786] [2020-10-28 17:48:42,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:48:42,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 17:48:42,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674803671] [2020-10-28 17:48:42,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 17:48:42,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:48:42,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 17:48:42,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:48:42,162 INFO L87 Difference]: Start difference. First operand 42663 states and 58886 transitions. Second operand 11 states. [2020-10-28 17:48:43,063 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 17:48:44,133 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-28 17:48:44,911 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:48:45,152 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:48:45,443 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:48:45,934 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:48:46,428 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:48:50,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:48:50,138 INFO L93 Difference]: Finished difference Result 107573 states and 149162 transitions. [2020-10-28 17:48:50,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-28 17:48:50,139 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 133 [2020-10-28 17:48:50,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:48:50,376 INFO L225 Difference]: With dead ends: 107573 [2020-10-28 17:48:50,376 INFO L226 Difference]: Without dead ends: 64978 [2020-10-28 17:48:50,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=184, Invalid=466, Unknown=0, NotChecked=0, Total=650 [2020-10-28 17:48:50,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64978 states. [2020-10-28 17:48:56,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64978 to 64975. [2020-10-28 17:48:56,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64975 states. [2020-10-28 17:48:56,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64975 states to 64975 states and 89574 transitions. [2020-10-28 17:48:56,355 INFO L78 Accepts]: Start accepts. Automaton has 64975 states and 89574 transitions. Word has length 133 [2020-10-28 17:48:56,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:48:56,356 INFO L481 AbstractCegarLoop]: Abstraction has 64975 states and 89574 transitions. [2020-10-28 17:48:56,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 17:48:56,356 INFO L276 IsEmpty]: Start isEmpty. Operand 64975 states and 89574 transitions. [2020-10-28 17:48:56,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-28 17:48:56,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:48:56,357 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] [2020-10-28 17:48:56,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 17:48:56,358 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:48:56,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:48:56,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1587715971, now seen corresponding path program 1 times [2020-10-28 17:48:56,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:48:56,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133980594] [2020-10-28 17:48:56,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:48:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:56,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:57,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:57,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-28 17:48:57,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:57,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1251 [2020-10-28 17:48:57,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:57,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:57,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-28 17:48:57,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 17:48:57,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-28 17:48:57,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:58,053 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-28 17:48:58,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:48:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:58,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:58,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:58,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:48:58,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:58,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:48:58,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:58,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:58,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:48:58,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:48:58,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:48:58,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:58,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:48:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:58,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:58,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:58,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-28 17:48:58,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:58,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 17:48:58,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:58,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:58,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:48:58,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:48:58,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:48:58,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:58,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-28 17:48:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:58,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:58,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:58,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:48:58,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:58,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:48:58,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:58,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:58,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:48:58,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:48:58,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:48:58,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:58,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-28 17:48:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:58,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:58,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:58,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:48:58,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:58,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:48:58,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:58,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:58,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:48:58,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:48:58,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:48:58,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:58,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-28 17:48:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:58,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:58,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:58,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:48:58,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:58,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:48:58,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:58,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:58,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:48:58,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:48:58,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:48:58,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:58,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-28 17:48:58,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:58,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:58,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:58,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:48:58,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:58,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:48:58,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:58,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:58,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:48:58,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:48:58,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:48:58,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:58,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-28 17:48:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:58,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:58,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:58,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:48:58,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:58,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:48:58,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:58,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:58,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:48:58,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:48:58,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:48:58,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:58,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-28 17:48:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:58,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:58,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:58,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:48:58,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:58,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:48:58,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:58,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:58,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:48:58,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:48:58,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:48:58,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:58,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-28 17:48:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:58,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:58,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:58,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:48:58,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:58,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:48:58,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:58,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:58,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:48:58,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:48:58,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:48:58,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:58,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-28 17:48:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:58,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:58,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:58,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:48:58,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:58,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:48:58,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:58,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:58,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:48:58,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:48:58,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:48:58,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:58,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-28 17:48:58,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:58,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:58,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:58,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:48:58,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:58,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:48:58,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:58,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:58,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:48:58,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 17:48:58,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:48:58,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:59,057 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 17:48:59,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133980594] [2020-10-28 17:48:59,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:48:59,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-28 17:48:59,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777459430] [2020-10-28 17:48:59,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-28 17:48:59,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:48:59,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-28 17:48:59,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=491, Unknown=0, NotChecked=0, Total=600 [2020-10-28 17:48:59,059 INFO L87 Difference]: Start difference. First operand 64975 states and 89574 transitions. Second operand 25 states. [2020-10-28 17:48:59,555 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-28 17:48:59,914 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-28 17:49:00,263 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-28 17:49:00,619 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-28 17:49:01,000 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-28 17:49:01,402 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-28 17:49:01,806 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-28 17:49:02,202 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:49:02,423 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 17:49:02,641 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 17:49:02,834 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:49:03,327 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-28 17:49:03,512 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-28 17:49:03,699 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 17:49:03,930 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 17:49:04,144 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 17:49:04,362 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 17:49:04,597 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 17:49:04,774 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-28 17:49:05,009 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:49:05,291 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-28 17:49:05,699 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-28 17:49:05,998 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-28 17:49:06,160 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 17:49:06,343 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:49:06,594 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:49:06,768 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:49:06,916 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:49:07,463 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 17:49:08,464 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 17:49:08,640 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:49:08,815 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:49:09,303 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 17:49:09,554 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 17:49:09,700 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 17:49:10,264 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:49:10,463 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-28 17:49:10,627 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:49:10,974 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-28 17:49:11,231 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:49:11,502 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 17:49:11,644 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:49:11,832 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:49:12,261 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:49:12,410 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:49:13,061 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:49:13,284 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-28 17:49:13,475 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 17:49:13,827 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-28 17:49:14,333 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 17:49:14,492 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:49:14,775 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-28 17:49:14,949 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-28 17:49:15,093 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:49:15,441 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:49:15,751 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:49:15,919 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-28 17:49:16,337 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-28 17:49:16,560 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-28 17:49:17,058 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:49:17,221 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 17:49:17,381 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:49:17,692 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:49:17,861 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:49:18,042 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:49:18,239 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:49:18,428 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:49:18,740 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:49:18,893 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 17:49:19,098 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:49:19,851 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:49:20,087 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-28 17:49:20,506 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-28 17:49:20,960 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-28 17:49:21,136 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-28 17:49:21,303 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 17:49:21,469 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:49:21,752 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-28 17:49:21,939 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-28 17:49:22,148 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-28 17:49:22,314 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:49:22,517 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:49:22,689 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-28 17:49:23,054 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:49:23,197 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:49:23,518 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:49:24,300 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:49:24,583 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:49:25,015 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 17:49:25,994 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-28 17:49:26,179 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-28 17:49:26,356 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-28 17:49:26,530 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-28 17:49:26,708 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:49:27,003 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-28 17:49:27,197 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-28 17:49:27,378 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-28 17:49:27,551 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-28 17:49:27,732 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:49:28,218 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:49:28,372 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:49:28,513 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:49:28,861 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-28 17:49:29,534 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-28 17:49:30,285 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:49:30,454 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:49:30,610 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:49:30,766 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 17:49:30,922 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:49:31,188 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:49:31,365 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-28 17:49:31,530 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:49:31,689 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:49:32,147 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:49:32,305 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:49:32,451 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:49:32,594 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 17:49:37,214 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-28 17:49:37,375 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:49:37,531 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 17:49:37,944 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-28 17:49:38,288 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:49:38,795 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:49:39,311 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-28 17:49:39,484 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:49:39,634 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-28 17:49:40,154 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-28 17:49:40,949 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:49:41,439 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 17:49:41,808 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-28 17:49:42,026 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-28 17:49:42,177 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:49:43,106 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:49:43,733 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 17:49:44,215 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:49:44,739 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-28 17:49:45,103 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-28 17:49:45,857 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-28 17:49:46,290 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-28 17:49:47,089 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-28 17:49:50,121 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-10-28 17:50:06,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:50:06,687 INFO L93 Difference]: Finished difference Result 224929 states and 378370 transitions. [2020-10-28 17:50:06,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 220 states. [2020-10-28 17:50:06,688 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 133 [2020-10-28 17:50:06,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:50:08,160 INFO L225 Difference]: With dead ends: 224929 [2020-10-28 17:50:08,160 INFO L226 Difference]: Without dead ends: 160022 [2020-10-28 17:50:08,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 230 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24530 ImplicationChecksByTransitivity, 31.0s TimeCoverageRelationStatistics Valid=10256, Invalid=43336, Unknown=0, NotChecked=0, Total=53592 [2020-10-28 17:50:08,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160022 states.