/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 17:37:40,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 17:37:40,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 17:37:40,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 17:37:40,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 17:37:40,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 17:37:40,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 17:37:40,928 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 17:37:40,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 17:37:40,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 17:37:40,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 17:37:40,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 17:37:40,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 17:37:40,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 17:37:40,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 17:37:40,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 17:37:40,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 17:37:40,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 17:37:40,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 17:37:40,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 17:37:40,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 17:37:40,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 17:37:40,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 17:37:40,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 17:37:40,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 17:37:40,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 17:37:40,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 17:37:40,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 17:37:40,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 17:37:40,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 17:37:40,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 17:37:40,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 17:37:40,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 17:37:40,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 17:37:40,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 17:37:40,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 17:37:40,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 17:37:40,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 17:37:40,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 17:37:40,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 17:37:40,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 17:37:40,991 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 17:37:41,020 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 17:37:41,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 17:37:41,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 17:37:41,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 17:37:41,023 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 17:37:41,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 17:37:41,023 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 17:37:41,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 17:37:41,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 17:37:41,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 17:37:41,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 17:37:41,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 17:37:41,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 17:37:41,025 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 17:37:41,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 17:37:41,026 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 17:37:41,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 17:37:41,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 17:37:41,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 17:37:41,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 17:37:41,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 17:37:41,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 17:37:41,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 17:37:41,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 17:37:41,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 17:37:41,029 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 17:37:41,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 17:37:41,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 17:37:41,030 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 17:37:41,030 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 17:37:41,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 17:37:41,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 17:37:41,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 17:37:41,457 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 17:37:41,458 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 17:37:41,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c [2020-10-28 17:37:41,538 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fe0780b78/4f7d33d32ac1499c93536a50f5ad3c4b/FLAGb4608fa7b [2020-10-28 17:37:42,373 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 17:37:42,374 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c [2020-10-28 17:37:42,388 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fe0780b78/4f7d33d32ac1499c93536a50f5ad3c4b/FLAGb4608fa7b [2020-10-28 17:37:42,620 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fe0780b78/4f7d33d32ac1499c93536a50f5ad3c4b [2020-10-28 17:37:42,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 17:37:42,629 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 17:37:42,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 17:37:42,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 17:37:42,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 17:37:42,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:37:42" (1/1) ... [2020-10-28 17:37:42,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f3c1806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:37:42, skipping insertion in model container [2020-10-28 17:37:42,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:37:42" (1/1) ... [2020-10-28 17:37:42,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 17:37:42,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 17:37:43,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:37:43,139 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 17:37:43,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:37:43,310 INFO L208 MainTranslator]: Completed translation [2020-10-28 17:37:43,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:37:43 WrapperNode [2020-10-28 17:37:43,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 17:37:43,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 17:37:43,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 17:37:43,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 17:37:43,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:37:43" (1/1) ... [2020-10-28 17:37:43,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:37:43" (1/1) ... [2020-10-28 17:37:43,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:37:43" (1/1) ... [2020-10-28 17:37:43,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:37:43" (1/1) ... [2020-10-28 17:37:43,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:37:43" (1/1) ... [2020-10-28 17:37:43,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:37:43" (1/1) ... [2020-10-28 17:37:43,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:37:43" (1/1) ... [2020-10-28 17:37:43,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 17:37:43,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 17:37:43,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 17:37:43,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 17:37:43,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:37:43" (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 17:37:43,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 17:37:43,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 17:37:43,519 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 17:37:43,519 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 17:37:43,520 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-28 17:37:43,520 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-28 17:37:43,520 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-28 17:37:43,520 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-28 17:37:43,520 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-28 17:37:43,520 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-28 17:37:43,521 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 17:37:43,521 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-28 17:37:43,521 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 17:37:43,521 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 17:37:43,521 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 17:37:43,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 17:37:43,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-28 17:37:43,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-28 17:37:43,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 17:37:43,522 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-28 17:37:43,522 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 17:37:43,522 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-28 17:37:43,522 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-28 17:37:43,522 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-28 17:37:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-28 17:37:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-28 17:37:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-28 17:37:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-28 17:37:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-28 17:37:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 17:37:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 17:37:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 17:37:43,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 17:37:43,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 17:37:43,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 17:37:43,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 17:37:44,829 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 17:37:44,829 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 17:37:44,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:37:44 BoogieIcfgContainer [2020-10-28 17:37:44,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 17:37:44,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 17:37:44,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 17:37:44,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 17:37:44,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 05:37:42" (1/3) ... [2020-10-28 17:37:44,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@416d3138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:37:44, skipping insertion in model container [2020-10-28 17:37:44,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:37:43" (2/3) ... [2020-10-28 17:37:44,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@416d3138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:37:44, skipping insertion in model container [2020-10-28 17:37:44,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:37:44" (3/3) ... [2020-10-28 17:37:44,842 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c [2020-10-28 17:37:44,854 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 17:37:44,860 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 17:37:44,874 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 17:37:44,905 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 17:37:44,905 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 17:37:44,905 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 17:37:44,905 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 17:37:44,906 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 17:37:44,906 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 17:37:44,906 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 17:37:44,906 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 17:37:44,932 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states. [2020-10-28 17:37:44,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-28 17:37:44,950 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:37:44,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:37:44,952 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:37:44,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:37:44,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1878219674, now seen corresponding path program 1 times [2020-10-28 17:37:44,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:37:44,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [642298396] [2020-10-28 17:37:44,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:37:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:37:45,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:37:46,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:37:46,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:37:46,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:37:46,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 758 [2020-10-28 17:37:46,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:37:46,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:37:46,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:37:46,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-28 17:37:46,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:37:46,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-28 17:37:46,875 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:37:46,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:37:46,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:37:46,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:37:46,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:37:46,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:37:46,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:37:46,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 17:37:46,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:37:46,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:37:46,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:37:46,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:37:46,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:37:46,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:37:46,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:37:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:37:46,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:37:47,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:37:47,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-28 17:37:47,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:37:47,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-28 17:37:47,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:37:47,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:37:47,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:37:47,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:37:47,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:37:47,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:37:47,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 17:37:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:37:47,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:37:47,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:37:47,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:37:47,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:37:47,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:37:47,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:37:47,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:37:47,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:37:47,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 17:37:47,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:37:47,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:37:47,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-28 17:37:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:37:47,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:37:47,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:37:47,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:37:47,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:37:47,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 17:37:47,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:37:47,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:37:47,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:37:47,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:37:47,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:37:47,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:37:47,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-28 17:37:47,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:37:47,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:37:47,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:37:47,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:37:47,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:37:47,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:37:47,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:37:47,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:37:47,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:37:47,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:37:47,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:37:47,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 17:37:47,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 17:37:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:37:47,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:37:47,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:37:47,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:37:47,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:37:47,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:37:47,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:37:47,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:37:47,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:37:47,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:37:47,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:37:47,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:37:47,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-28 17:37:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:37:47,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:37:47,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:37:47,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:37:47,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:37:47,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:37:47,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:37:47,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:37:47,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:37:47,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:37:47,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:37:47,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:37:47,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-28 17:37:47,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:37:47,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:37:47,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:37:47,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:37:47,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:37:47,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:37:47,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:37:47,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:37:47,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:37:47,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:37:47,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:37:47,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:37:47,391 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 17:37:47,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [642298396] [2020-10-28 17:37:47,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:37:47,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 17:37:47,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670179433] [2020-10-28 17:37:47,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 17:37:47,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:37:47,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 17:37:47,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 17:37:47,419 INFO L87 Difference]: Start difference. First operand 337 states. Second operand 7 states. [2020-10-28 17:37:48,492 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:37:49,011 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:37:49,932 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:37:50,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:37:50,544 INFO L93 Difference]: Finished difference Result 493 states and 833 transitions. [2020-10-28 17:37:50,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 17:37:50,561 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 105 [2020-10-28 17:37:50,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:37:50,583 INFO L225 Difference]: With dead ends: 493 [2020-10-28 17:37:50,583 INFO L226 Difference]: Without dead ends: 357 [2020-10-28 17:37:50,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:37:50,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-10-28 17:37:50,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 329. [2020-10-28 17:37:50,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-10-28 17:37:50,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 568 transitions. [2020-10-28 17:37:50,757 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 568 transitions. Word has length 105 [2020-10-28 17:37:50,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:37:50,758 INFO L481 AbstractCegarLoop]: Abstraction has 329 states and 568 transitions. [2020-10-28 17:37:50,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 17:37:50,758 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 568 transitions. [2020-10-28 17:37:50,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-28 17:37:50,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:37:50,763 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:37:50,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 17:37:50,763 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:37:50,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:37:50,764 INFO L82 PathProgramCache]: Analyzing trace with hash 2126366168, now seen corresponding path program 1 times [2020-10-28 17:37:50,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:37:50,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302965022] [2020-10-28 17:37:50,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:37:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:37:50,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:37:52,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:37:52,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:37:52,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:37:52,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1482 [2020-10-28 17:37:52,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:37:52,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:37:52,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:37:52,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-28 17:37:52,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:37:52,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:37:52,837 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:37:52,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:37:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:37:52,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:37:52,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:37:52,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:37:52,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:37:52,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 17:37:52,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:37:52,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:37:52,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:37:52,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:37:52,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:37:52,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:37:52,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:37:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:37:52,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:37:53,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:37:53,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-28 17:37:53,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:37:53,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 393 [2020-10-28 17:37:53,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:37:53,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:37:53,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:37:53,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:37:53,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 17:37:53,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:37:53,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 17:37:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:37:53,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:37:53,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:37:53,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:37:53,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:37:53,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:37:53,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:37:53,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:37:53,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:37:53,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:37:53,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:37:53,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:37:53,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-28 17:37:53,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:37:53,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:37:53,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:37:53,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:37:53,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:37:53,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:37:53,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:37:53,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:37:53,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:37:53,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:37:53,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:37:53,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:37:53,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-28 17:37:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:37:53,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:37:53,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:37:53,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:37:53,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:37:53,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:37:53,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:37:53,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:37:53,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:37:53,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:37:53,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:37:53,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:37:53,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 17:37:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:37:53,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:37:53,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:37:53,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:37:53,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:37:53,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:37:53,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:37:53,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:37:53,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:37:53,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:37:53,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:37:53,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:37:53,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-28 17:37:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:37:53,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:37:53,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:37:53,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:37:53,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:37:53,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:37:53,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:37:53,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:37:53,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:37:53,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:37:53,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:37:53,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:37:53,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-28 17:37:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:37:53,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:37:53,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:37:53,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:37:53,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:37:53,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:37:53,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:37:53,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:37:53,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:37:53,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:37:53,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:37:53,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:37:53,770 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 17:37:53,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1302965022] [2020-10-28 17:37:53,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:37:53,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 17:37:53,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562211729] [2020-10-28 17:37:53,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 17:37:53,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:37:53,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 17:37:53,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-28 17:37:53,777 INFO L87 Difference]: Start difference. First operand 329 states and 568 transitions. Second operand 13 states. [2020-10-28 17:37:56,284 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-28 17:37:56,817 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 275 [2020-10-28 17:37:57,391 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 271 [2020-10-28 17:37:57,915 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:38:00,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:38:00,859 INFO L93 Difference]: Finished difference Result 488 states and 821 transitions. [2020-10-28 17:38:00,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 17:38:00,859 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 105 [2020-10-28 17:38:00,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:38:00,870 INFO L225 Difference]: With dead ends: 488 [2020-10-28 17:38:00,871 INFO L226 Difference]: Without dead ends: 357 [2020-10-28 17:38:00,876 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-28 17:38:00,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-10-28 17:38:00,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 329. [2020-10-28 17:38:00,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-10-28 17:38:00,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 526 transitions. [2020-10-28 17:38:00,951 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 526 transitions. Word has length 105 [2020-10-28 17:38:00,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:38:00,952 INFO L481 AbstractCegarLoop]: Abstraction has 329 states and 526 transitions. [2020-10-28 17:38:00,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 17:38:00,952 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 526 transitions. [2020-10-28 17:38:00,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-28 17:38:00,955 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:38:00,955 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:38:00,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 17:38:00,955 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:38:00,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:38:00,956 INFO L82 PathProgramCache]: Analyzing trace with hash 2050372793, now seen corresponding path program 1 times [2020-10-28 17:38:00,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:38:00,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [732027151] [2020-10-28 17:38:00,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:38:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:01,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:01,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:01,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:03,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:03,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:06,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:06,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-28 17:38:06,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:38:06,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5068 [2020-10-28 17:38:06,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:06,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:06,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:38:06,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-28 17:38:06,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 17:38:06,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:38:06,616 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:38:06,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:38:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:06,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:06,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:06,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:38:06,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:06,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 17:38:06,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:06,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:06,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:06,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:06,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:06,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:06,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:38:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:06,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:06,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:06,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 17:38:06,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:06,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-28 17:38:06,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:06,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:06,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:06,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:06,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-28 17:38:06,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:06,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:38:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:06,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:06,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:06,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:38:06,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:06,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:38:06,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:06,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:06,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:06,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:06,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:38:06,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:06,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-28 17:38:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:06,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:06,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:06,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:06,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:06,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:38:06,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:06,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:06,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:06,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:06,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:38:06,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:06,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:38:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:06,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:06,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:06,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:06,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:06,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:38:06,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:06,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:06,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:06,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:06,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:38:06,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:07,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-28 17:38:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:07,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:07,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:07,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:07,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:07,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:38:07,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:07,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:38:07,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:07,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 17:38:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:07,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:07,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:07,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:07,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:07,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 17:38:07,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:07,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:07,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:38:07,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:38:07,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:38:07,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:07,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 17:38:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:07,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:07,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:07,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:07,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:07,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:38:07,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:07,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:07,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:07,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:38:07,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:07,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:07,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:38:07,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [732027151] [2020-10-28 17:38:07,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:38:07,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:38:07,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079036007] [2020-10-28 17:38:07,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:38:07,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:38:07,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:38:07,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:38:07,199 INFO L87 Difference]: Start difference. First operand 329 states and 526 transitions. Second operand 10 states. [2020-10-28 17:38:07,628 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-28 17:38:10,485 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-28 17:38:11,230 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-28 17:38:13,256 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2020-10-28 17:38:13,428 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-28 17:38:13,582 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-28 17:38:13,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:38:13,647 INFO L93 Difference]: Finished difference Result 631 states and 1008 transitions. [2020-10-28 17:38:13,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-28 17:38:13,648 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 146 [2020-10-28 17:38:13,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:38:13,654 INFO L225 Difference]: With dead ends: 631 [2020-10-28 17:38:13,655 INFO L226 Difference]: Without dead ends: 506 [2020-10-28 17:38:13,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-28 17:38:13,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2020-10-28 17:38:13,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 444. [2020-10-28 17:38:13,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-28 17:38:13,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 711 transitions. [2020-10-28 17:38:13,715 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 711 transitions. Word has length 146 [2020-10-28 17:38:13,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:38:13,716 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 711 transitions. [2020-10-28 17:38:13,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:38:13,717 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 711 transitions. [2020-10-28 17:38:13,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-28 17:38:13,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:38:13,719 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:38:13,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 17:38:13,720 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:38:13,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:38:13,720 INFO L82 PathProgramCache]: Analyzing trace with hash -338480186, now seen corresponding path program 1 times [2020-10-28 17:38:13,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:38:13,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [476568026] [2020-10-28 17:38:13,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:38:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:13,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:13,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:14,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:14,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:14,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:18,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:18,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-28 17:38:18,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:38:18,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-28 17:38:18,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:18,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:18,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:38:18,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:38:18,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-28 17:38:18,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:19,278 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:38:19,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:38:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:19,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:19,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:19,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:38:19,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:19,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:38:19,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:19,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:19,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:19,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:19,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:19,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:19,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:38:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:19,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:19,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:19,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 17:38:19,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:19,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-28 17:38:19,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:19,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:19,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:38:19,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:19,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:38:19,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:19,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:38:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:19,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:19,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:19,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:38:19,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:19,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:38:19,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:19,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:19,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:19,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:19,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:38:19,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:19,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-28 17:38:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:19,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:19,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:19,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:19,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:19,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:38:19,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:19,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:19,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:19,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:19,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:38:19,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:19,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:38:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:19,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:19,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:19,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:19,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:19,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:38:19,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:19,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:19,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:19,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:19,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:38:19,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:19,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-28 17:38:19,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:19,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:19,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:19,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:19,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:19,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:38:19,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:19,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:19,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:19,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:19,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:38:19,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:19,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 17:38:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:19,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:19,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:19,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:38:19,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:19,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 17:38:19,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:19,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:19,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:19,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 17:38:19,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:38:19,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:19,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-28 17:38:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:19,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:19,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:19,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:19,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:19,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:38:19,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:19,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:19,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:19,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:38:19,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:19,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:20,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:38:20,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [476568026] [2020-10-28 17:38:20,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:38:20,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:38:20,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969747450] [2020-10-28 17:38:20,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:38:20,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:38:20,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:38:20,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:38:20,006 INFO L87 Difference]: Start difference. First operand 444 states and 711 transitions. Second operand 10 states. [2020-10-28 17:38:20,479 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-28 17:38:20,914 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2020-10-28 17:38:21,682 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2020-10-28 17:38:22,171 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:38:25,682 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:38:26,159 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:38:26,615 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:38:26,983 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:38:27,461 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:38:27,821 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:38:28,274 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:38:28,592 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:38:29,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:38:29,526 INFO L93 Difference]: Finished difference Result 1365 states and 2187 transitions. [2020-10-28 17:38:29,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 17:38:29,526 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 149 [2020-10-28 17:38:29,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:38:29,533 INFO L225 Difference]: With dead ends: 1365 [2020-10-28 17:38:29,533 INFO L226 Difference]: Without dead ends: 970 [2020-10-28 17:38:29,535 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:38:29,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-10-28 17:38:29,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 874. [2020-10-28 17:38:29,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 874 states. [2020-10-28 17:38:29,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1385 transitions. [2020-10-28 17:38:29,639 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1385 transitions. Word has length 149 [2020-10-28 17:38:29,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:38:29,640 INFO L481 AbstractCegarLoop]: Abstraction has 874 states and 1385 transitions. [2020-10-28 17:38:29,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:38:29,640 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1385 transitions. [2020-10-28 17:38:29,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-28 17:38:29,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:38:29,644 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:38:29,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 17:38:29,644 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:38:29,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:38:29,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1287364510, now seen corresponding path program 1 times [2020-10-28 17:38:29,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:38:29,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [742529409] [2020-10-28 17:38:29,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:38:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:29,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:29,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:29,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:30,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:30,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:34,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:34,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-28 17:38:34,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:38:34,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 17:38:34,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:34,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:34,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:38:34,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:38:34,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 17:38:34,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:35,192 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:38:35,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:38:35,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:35,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:35,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:35,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:38:35,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:35,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 17:38:35,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:35,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:35,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:35,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:35,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:35,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:35,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:38:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:35,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:35,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:35,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 17:38:35,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:35,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-28 17:38:35,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:35,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:35,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:38:35,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:35,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:38:35,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:35,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:38:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:35,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:35,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:35,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:38:35,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:35,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:38:35,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:35,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:35,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:35,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:35,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:38:35,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:35,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-28 17:38:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:35,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:35,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:35,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:35,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:35,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:38:35,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:35,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:35,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:35,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:35,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:38:35,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:35,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:38:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:35,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:35,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:35,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:35,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:35,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:38:35,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:35,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:35,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:35,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:35,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:38:35,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:35,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-28 17:38:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:35,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:35,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:35,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:35,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:35,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:38:35,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:35,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:35,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:35,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:35,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:38:35,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:35,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 17:38:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:35,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:35,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:35,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:38:35,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:35,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:38:35,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:35,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:35,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:35,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 17:38:35,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:38:35,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:35,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-28 17:38:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:35,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:35,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:35,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:35,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:35,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:38:35,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:35,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:35,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:35,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:38:35,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:35,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:35,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:38:35,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [742529409] [2020-10-28 17:38:35,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:38:35,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:38:35,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679135082] [2020-10-28 17:38:35,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:38:35,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:38:35,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:38:35,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:38:35,870 INFO L87 Difference]: Start difference. First operand 874 states and 1385 transitions. Second operand 10 states. [2020-10-28 17:38:36,333 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-28 17:38:36,790 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2020-10-28 17:38:37,310 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2020-10-28 17:38:37,766 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:38:41,492 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:38:41,799 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:38:42,031 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:38:42,509 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:38:42,936 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:38:43,448 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:38:43,867 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:38:44,448 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:38:46,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:38:46,113 INFO L93 Difference]: Finished difference Result 2761 states and 4390 transitions. [2020-10-28 17:38:46,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 17:38:46,116 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 149 [2020-10-28 17:38:46,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:38:46,128 INFO L225 Difference]: With dead ends: 2761 [2020-10-28 17:38:46,128 INFO L226 Difference]: Without dead ends: 1905 [2020-10-28 17:38:46,131 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:38:46,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1905 states. [2020-10-28 17:38:46,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1905 to 1724. [2020-10-28 17:38:46,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1724 states. [2020-10-28 17:38:46,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 2700 transitions. [2020-10-28 17:38:46,357 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 2700 transitions. Word has length 149 [2020-10-28 17:38:46,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:38:46,359 INFO L481 AbstractCegarLoop]: Abstraction has 1724 states and 2700 transitions. [2020-10-28 17:38:46,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:38:46,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 2700 transitions. [2020-10-28 17:38:46,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-28 17:38:46,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:38:46,365 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:38:46,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 17:38:46,366 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:38:46,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:38:46,366 INFO L82 PathProgramCache]: Analyzing trace with hash 59069213, now seen corresponding path program 1 times [2020-10-28 17:38:46,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:38:46,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1630015135] [2020-10-28 17:38:46,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:38:46,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:46,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:46,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:46,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:48,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:48,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:49,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:51,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:51,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-28 17:38:51,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 17:38:51,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-28 17:38:51,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:51,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:51,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:38:51,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:38:51,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-28 17:38:51,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:51,922 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:38:51,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:38:51,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:51,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:51,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:51,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:38:51,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:51,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:38:51,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:51,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:51,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:51,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:51,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:51,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:51,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:38:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:51,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:52,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:52,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 17:38:52,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:52,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-28 17:38:52,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:52,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:52,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:38:52,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:52,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:38:52,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:52,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:38:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:52,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:52,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:52,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:38:52,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:52,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:38:52,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:52,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:52,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:52,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:52,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:38:52,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:52,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-28 17:38:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:52,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:52,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:52,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:52,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:52,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:38:52,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:52,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:52,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:52,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:52,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:38:52,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:52,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:38:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:52,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:52,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:52,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:52,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:52,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:38:52,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:52,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:52,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:52,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:52,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:38:52,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:52,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-28 17:38:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:52,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:52,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:52,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:52,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:52,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:38:52,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:52,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:52,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:52,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:38:52,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:38:52,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:38:52,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 17:38:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:52,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:52,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:52,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 17:38:52,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:52,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 17:38:52,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:52,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:52,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:38:52,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 17:38:52,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:38:52,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:52,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-28 17:38:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:38:52,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:38:52,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:38:52,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:38:52,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:38:52,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:38:52,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:38:52,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:38:52,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:38:52,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:38:52,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:38:52,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:38:52,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:38:52,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1630015135] [2020-10-28 17:38:52,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:38:52,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:38:52,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746282553] [2020-10-28 17:38:52,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:38:52,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:38:52,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:38:52,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:38:52,580 INFO L87 Difference]: Start difference. First operand 1724 states and 2700 transitions. Second operand 10 states. [2020-10-28 17:38:53,079 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-28 17:38:53,533 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2020-10-28 17:38:54,086 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2020-10-28 17:38:54,542 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:38:58,117 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:38:58,435 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:38:58,685 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:38:59,172 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:38:59,604 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:00,178 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:00,588 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:01,148 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:01,525 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:02,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:39:02,836 INFO L93 Difference]: Finished difference Result 5297 states and 8290 transitions. [2020-10-28 17:39:02,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 17:39:02,837 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2020-10-28 17:39:02,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:39:02,857 INFO L225 Difference]: With dead ends: 5297 [2020-10-28 17:39:02,857 INFO L226 Difference]: Without dead ends: 3640 [2020-10-28 17:39:02,862 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:39:02,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3640 states. [2020-10-28 17:39:03,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3640 to 3297. [2020-10-28 17:39:03,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3297 states. [2020-10-28 17:39:03,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3297 states to 3297 states and 5082 transitions. [2020-10-28 17:39:03,221 INFO L78 Accepts]: Start accepts. Automaton has 3297 states and 5082 transitions. Word has length 150 [2020-10-28 17:39:03,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:39:03,222 INFO L481 AbstractCegarLoop]: Abstraction has 3297 states and 5082 transitions. [2020-10-28 17:39:03,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:39:03,222 INFO L276 IsEmpty]: Start isEmpty. Operand 3297 states and 5082 transitions. [2020-10-28 17:39:03,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-28 17:39:03,230 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:39:03,230 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:39:03,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 17:39:03,231 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:39:03,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:39:03,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1172201313, now seen corresponding path program 1 times [2020-10-28 17:39:03,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:39:03,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1590347130] [2020-10-28 17:39:03,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:39:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:03,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:03,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:03,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:03,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:04,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:08,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:08,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-28 17:39:08,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:39:08,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-28 17:39:08,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:08,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:08,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:39:08,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:39:08,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-28 17:39:08,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:08,806 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:39:08,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:39:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:08,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:08,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:08,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:39:08,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:08,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:39:08,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:08,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:08,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:39:08,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:08,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:39:08,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:08,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:39:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:08,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:08,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:08,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 17:39:08,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:08,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-28 17:39:08,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:08,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:08,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:39:08,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:08,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:39:08,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:09,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:39:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:09,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:09,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:09,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:39:09,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:09,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:39:09,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:09,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:09,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:09,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:09,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:39:09,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:09,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-28 17:39:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:09,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:09,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:09,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:09,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:09,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:39:09,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:09,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:09,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:09,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:09,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:39:09,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:09,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:39:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:09,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:09,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:09,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:09,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:09,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:39:09,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:09,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:09,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:09,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:09,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:39:09,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:09,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-28 17:39:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:09,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:09,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:09,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:09,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:09,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:39:09,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:09,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:09,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:09,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:09,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:39:09,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:09,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 17:39:09,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:09,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:09,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:09,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 17:39:09,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:09,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:39:09,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:09,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:09,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:09,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:39:09,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:39:09,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:09,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-28 17:39:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:09,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:09,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:09,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:09,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:09,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:39:09,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:09,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:09,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:39:09,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:39:09,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:39:09,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:09,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:39:09,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1590347130] [2020-10-28 17:39:09,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:39:09,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:39:09,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008274482] [2020-10-28 17:39:09,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:39:09,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:39:09,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:39:09,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:39:09,387 INFO L87 Difference]: Start difference. First operand 3297 states and 5082 transitions. Second operand 10 states. [2020-10-28 17:39:09,881 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-28 17:39:10,347 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2020-10-28 17:39:10,882 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2020-10-28 17:39:11,337 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:39:15,430 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:39:15,755 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:16,019 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:16,522 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:16,949 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:17,490 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:17,887 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:18,480 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:18,851 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:20,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:39:20,198 INFO L93 Difference]: Finished difference Result 10178 states and 15640 transitions. [2020-10-28 17:39:20,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 17:39:20,204 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 151 [2020-10-28 17:39:20,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:39:20,241 INFO L225 Difference]: With dead ends: 10178 [2020-10-28 17:39:20,241 INFO L226 Difference]: Without dead ends: 7197 [2020-10-28 17:39:20,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:39:20,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7197 states. [2020-10-28 17:39:21,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7197 to 6566. [2020-10-28 17:39:21,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6566 states. [2020-10-28 17:39:21,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6566 states to 6566 states and 9946 transitions. [2020-10-28 17:39:21,062 INFO L78 Accepts]: Start accepts. Automaton has 6566 states and 9946 transitions. Word has length 151 [2020-10-28 17:39:21,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:39:21,063 INFO L481 AbstractCegarLoop]: Abstraction has 6566 states and 9946 transitions. [2020-10-28 17:39:21,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:39:21,063 INFO L276 IsEmpty]: Start isEmpty. Operand 6566 states and 9946 transitions. [2020-10-28 17:39:21,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-28 17:39:21,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:39:21,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:39:21,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 17:39:21,079 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:39:21,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:39:21,080 INFO L82 PathProgramCache]: Analyzing trace with hash -606353442, now seen corresponding path program 1 times [2020-10-28 17:39:21,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:39:21,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [91065954] [2020-10-28 17:39:21,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:39:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:21,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:21,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:21,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:21,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:26,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:26,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-28 17:39:26,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 17:39:26,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 17:39:26,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:26,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:26,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:39:26,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-28 17:39:26,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-28 17:39:26,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:26,592 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:39:26,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:39:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:26,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:26,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:26,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:39:26,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:26,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 17:39:26,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:26,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:26,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:39:26,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:26,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:39:26,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:26,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:39:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:26,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:26,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:26,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 17:39:26,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:26,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-28 17:39:26,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:26,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:26,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:26,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:26,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-28 17:39:26,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:26,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:39:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:26,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:26,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:26,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:39:26,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:26,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:39:26,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:26,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:26,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:26,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:26,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:39:26,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:26,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-28 17:39:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:26,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:26,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:26,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:26,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:26,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:39:26,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:26,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:26,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:26,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:26,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:39:26,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:26,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:39:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:26,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:26,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:26,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:26,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:26,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:39:26,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:26,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:26,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:39:26,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:39:26,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:39:26,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:26,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-28 17:39:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:26,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:26,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:26,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:26,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:26,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:39:26,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:26,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:26,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:39:26,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:39:26,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:39:26,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:26,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-28 17:39:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:26,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:27,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:27,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 17:39:27,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:27,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:39:27,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:27,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:27,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:39:27,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 17:39:27,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:39:27,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:27,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-28 17:39:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:27,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:27,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:27,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:27,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:27,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:39:27,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:27,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:27,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:39:27,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:39:27,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:39:27,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:27,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:39:27,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [91065954] [2020-10-28 17:39:27,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:39:27,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:39:27,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988143024] [2020-10-28 17:39:27,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:39:27,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:39:27,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:39:27,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:39:27,071 INFO L87 Difference]: Start difference. First operand 6566 states and 9946 transitions. Second operand 10 states. [2020-10-28 17:39:27,537 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-28 17:39:29,779 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-28 17:39:30,474 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:30,962 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-28 17:39:31,675 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:39:31,942 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-28 17:39:34,126 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2020-10-28 17:39:34,280 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-28 17:39:34,540 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-28 17:39:34,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:39:34,646 INFO L93 Difference]: Finished difference Result 14916 states and 22790 transitions. [2020-10-28 17:39:34,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-28 17:39:34,647 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 151 [2020-10-28 17:39:34,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:39:34,706 INFO L225 Difference]: With dead ends: 14916 [2020-10-28 17:39:34,707 INFO L226 Difference]: Without dead ends: 11297 [2020-10-28 17:39:34,718 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-28 17:39:34,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11297 states. [2020-10-28 17:39:35,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11297 to 9974. [2020-10-28 17:39:35,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9974 states. [2020-10-28 17:39:35,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9974 states to 9974 states and 15178 transitions. [2020-10-28 17:39:35,616 INFO L78 Accepts]: Start accepts. Automaton has 9974 states and 15178 transitions. Word has length 151 [2020-10-28 17:39:35,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:39:35,616 INFO L481 AbstractCegarLoop]: Abstraction has 9974 states and 15178 transitions. [2020-10-28 17:39:35,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:39:35,617 INFO L276 IsEmpty]: Start isEmpty. Operand 9974 states and 15178 transitions. [2020-10-28 17:39:35,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-28 17:39:35,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:39:35,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:39:35,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 17:39:35,635 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:39:35,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:39:35,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1191999674, now seen corresponding path program 1 times [2020-10-28 17:39:35,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:39:35,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813152915] [2020-10-28 17:39:35,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:39:35,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:35,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:35,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:36,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:36,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:36,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:36,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:36,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:40,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:40,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-28 17:39:40,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 17:39:40,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-28 17:39:40,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:40,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:40,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:39:40,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:39:40,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-28 17:39:40,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:41,204 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:39:41,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:39:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:41,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:41,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:41,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:39:41,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:41,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:39:41,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:41,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:41,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:39:41,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:41,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:39:41,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:41,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:39:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:41,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:41,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:41,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 17:39:41,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:41,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-28 17:39:41,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:41,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:41,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:39:41,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:41,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 17:39:41,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:41,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:39:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:41,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:41,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:41,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:39:41,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:41,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:39:41,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:41,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:41,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:41,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:41,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:39:41,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:41,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-28 17:39:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:41,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:41,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:41,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:41,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:41,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:39:41,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:41,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:41,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:41,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:39:41,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:39:41,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:41,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:39:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:41,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:41,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:41,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 17:39:41,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:41,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:39:41,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:41,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:41,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:39:41,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 17:39:41,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:39:41,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:41,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-28 17:39:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:41,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:41,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:41,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:41,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:41,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:39:41,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:41,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:41,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:39:41,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:39:41,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:39:41,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:41,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-28 17:39:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:41,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:41,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:41,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 17:39:41,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:41,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:39:41,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:41,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:41,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:39:41,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 17:39:41,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:39:41,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:41,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-28 17:39:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:41,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:39:41,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:39:41,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:39:41,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:39:41,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:39:41,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:39:41,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:39:41,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:39:41,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:39:41,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:39:41,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:39:41,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:39:41,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [813152915] [2020-10-28 17:39:41,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:39:41,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:39:41,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933777108] [2020-10-28 17:39:41,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:39:41,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:39:41,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:39:41,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:39:41,872 INFO L87 Difference]: Start difference. First operand 9974 states and 15178 transitions. Second operand 10 states. [2020-10-28 17:39:42,393 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-28 17:39:42,890 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2020-10-28 17:39:43,916 WARN L193 SmtUtils]: Spent 946.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 276 [2020-10-28 17:39:44,413 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-28 17:39:50,203 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:39:50,535 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:50,805 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:39:51,182 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:51,379 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:52,259 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:53,014 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:53,244 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:53,464 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:39:54,082 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:39:54,371 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:39:54,580 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:39:56,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:39:56,974 INFO L93 Difference]: Finished difference Result 37767 states and 57510 transitions. [2020-10-28 17:39:56,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 17:39:56,975 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 155 [2020-10-28 17:39:56,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:39:57,083 INFO L225 Difference]: With dead ends: 37767 [2020-10-28 17:39:57,084 INFO L226 Difference]: Without dead ends: 28182 [2020-10-28 17:39:57,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-28 17:39:57,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28182 states. [2020-10-28 17:39:59,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28182 to 25596. [2020-10-28 17:39:59,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25596 states. [2020-10-28 17:39:59,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25596 states to 25596 states and 38630 transitions. [2020-10-28 17:39:59,786 INFO L78 Accepts]: Start accepts. Automaton has 25596 states and 38630 transitions. Word has length 155 [2020-10-28 17:39:59,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:39:59,787 INFO L481 AbstractCegarLoop]: Abstraction has 25596 states and 38630 transitions. [2020-10-28 17:39:59,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:39:59,787 INFO L276 IsEmpty]: Start isEmpty. Operand 25596 states and 38630 transitions. [2020-10-28 17:39:59,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-28 17:39:59,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:39:59,830 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:39:59,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 17:39:59,831 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:39:59,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:39:59,831 INFO L82 PathProgramCache]: Analyzing trace with hash 930591857, now seen corresponding path program 1 times [2020-10-28 17:39:59,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:39:59,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [866178505] [2020-10-28 17:39:59,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:39:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:39:59,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:00,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:00,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:00,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:00,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:01,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:04,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:04,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-28 17:40:04,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 17:40:04,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-28 17:40:04,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:04,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:04,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:40:04,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:40:04,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-28 17:40:04,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:05,370 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:40:05,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:40:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:05,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:05,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:05,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:40:05,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:05,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 17:40:05,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:05,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:05,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:40:05,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:05,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:40:05,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:05,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:40:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:05,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:05,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:05,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-28 17:40:05,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:05,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-28 17:40:05,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:05,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:05,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:40:05,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:05,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:40:05,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:05,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-28 17:40:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:05,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:05,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:05,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:40:05,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:05,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:40:05,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:05,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:05,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:40:05,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:05,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:40:05,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:05,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-28 17:40:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:05,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:05,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:05,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:40:05,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:05,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:40:05,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:05,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:05,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:40:05,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:05,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:40:05,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:05,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-28 17:40:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:05,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:05,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:05,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:40:05,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:05,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:40:05,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:05,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:05,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:40:05,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 17:40:05,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:40:05,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:05,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-28 17:40:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:05,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:05,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:05,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:40:05,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:05,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:40:05,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:05,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:05,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:40:05,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:40:05,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:40:05,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:05,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-28 17:40:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:05,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:05,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:05,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 17:40:05,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:05,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:40:05,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:05,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:05,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:40:05,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:40:05,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:40:05,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:05,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-28 17:40:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:05,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:05,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:05,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:40:05,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:05,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:40:05,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:05,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:05,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:40:05,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:40:05,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:40:05,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:06,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:40:06,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [866178505] [2020-10-28 17:40:06,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:40:06,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:40:06,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383676501] [2020-10-28 17:40:06,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:40:06,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:40:06,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:40:06,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:40:06,006 INFO L87 Difference]: Start difference. First operand 25596 states and 38630 transitions. Second operand 10 states. [2020-10-28 17:40:06,441 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-28 17:40:06,969 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2020-10-28 17:40:07,609 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-28 17:40:08,545 WARN L193 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 276 [2020-10-28 17:40:16,174 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:40:16,492 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:40:17,082 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:40:17,371 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:40:18,142 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:40:18,777 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:40:19,110 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:40:19,795 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:40:20,068 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-28 17:40:20,228 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:40:24,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:40:24,175 INFO L93 Difference]: Finished difference Result 98144 states and 148079 transitions. [2020-10-28 17:40:24,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 17:40:24,176 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 155 [2020-10-28 17:40:24,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:40:24,459 INFO L225 Difference]: With dead ends: 98144 [2020-10-28 17:40:24,459 INFO L226 Difference]: Without dead ends: 72694 [2020-10-28 17:40:24,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-28 17:40:24,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72694 states. [2020-10-28 17:40:30,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72694 to 67040. [2020-10-28 17:40:30,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67040 states. [2020-10-28 17:40:30,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67040 states to 67040 states and 100153 transitions. [2020-10-28 17:40:30,598 INFO L78 Accepts]: Start accepts. Automaton has 67040 states and 100153 transitions. Word has length 155 [2020-10-28 17:40:30,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:40:30,598 INFO L481 AbstractCegarLoop]: Abstraction has 67040 states and 100153 transitions. [2020-10-28 17:40:30,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:40:30,598 INFO L276 IsEmpty]: Start isEmpty. Operand 67040 states and 100153 transitions. [2020-10-28 17:40:30,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-28 17:40:30,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:40:30,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:40:30,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 17:40:30,903 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:40:30,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:40:30,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1337573331, now seen corresponding path program 1 times [2020-10-28 17:40:30,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:40:30,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490291597] [2020-10-28 17:40:30,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:40:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:31,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:31,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:31,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:31,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:32,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:32,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:33,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:34,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:35,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:35,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 17:40:35,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 17:40:35,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-28 17:40:35,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:35,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:35,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:40:35,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:40:35,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 17:40:35,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:36,486 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-28 17:40:36,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:40:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:36,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:36,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:36,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:40:36,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:36,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:40:36,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:36,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:36,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:40:36,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:36,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:40:36,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:36,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:40:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:36,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:36,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:36,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 17:40:36,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:36,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-28 17:40:36,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:36,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:36,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:40:36,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:36,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 17:40:36,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:36,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:40:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:36,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:36,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:36,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:40:36,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:36,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:40:36,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:36,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:36,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:40:36,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:36,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:40:36,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:36,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-28 17:40:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:36,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:36,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:36,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:40:36,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:36,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:40:36,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:36,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:36,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:40:36,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:40:36,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:40:36,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:36,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-28 17:40:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:36,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:36,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:36,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 17:40:36,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:36,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:40:36,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:36,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:36,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:40:36,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 17:40:36,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:40:36,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:36,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-28 17:40:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:36,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:36,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:36,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:40:36,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:36,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:40:36,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:36,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:36,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:40:36,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:40:36,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:40:36,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:36,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-28 17:40:36,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:36,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:36,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:36,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 17:40:36,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:36,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:40:36,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:36,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:36,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:40:36,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 17:40:36,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:40:36,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:36,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-28 17:40:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:40:36,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:40:36,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:40:36,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:40:36,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:40:36,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:40:36,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:40:36,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:40:36,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:40:36,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:40:36,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:40:36,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:40:37,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:40:37,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490291597] [2020-10-28 17:40:37,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:40:37,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:40:37,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966289853] [2020-10-28 17:40:37,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:40:37,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:40:37,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:40:37,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:40:37,013 INFO L87 Difference]: Start difference. First operand 67040 states and 100153 transitions. Second operand 10 states. [2020-10-28 17:40:37,594 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-28 17:40:38,078 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2020-10-28 17:40:38,585 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2020-10-28 17:40:39,094 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:40:46,116 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 17:40:46,447 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:40:46,747 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:40:47,370 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:40:47,827 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:40:48,722 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:40:48,939 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:40:49,555 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-28 17:40:49,906 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-28 17:40:55,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:40:55,744 INFO L93 Difference]: Finished difference Result 200271 states and 298990 transitions. [2020-10-28 17:40:55,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 17:40:55,745 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-10-28 17:40:55,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:40:56,384 INFO L225 Difference]: With dead ends: 200271 [2020-10-28 17:40:56,384 INFO L226 Difference]: Without dead ends: 133960 [2020-10-28 17:40:56,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:40:56,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133960 states.