/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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 -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:19:55,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:19:55,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:19:55,926 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:19:55,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:19:55,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:19:55,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:19:55,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:19:55,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:19:55,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:19:55,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:19:55,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:19:55,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:19:55,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:19:55,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:19:55,940 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:19:55,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:19:55,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:19:55,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:19:55,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:19:55,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:19:55,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:19:55,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:19:55,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:19:55,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:19:55,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:19:55,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:19:55,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:19:55,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:19:55,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:19:55,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:19:55,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:19:55,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:19:55,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:19:55,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:19:55,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:19:55,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:19:55,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:19:55,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:19:55,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:19:55,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:19:55,961 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 [2020-10-15 02:19:55,985 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:19:55,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:19:55,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:19:55,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:19:55,987 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:19:55,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:19:55,987 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:19:55,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:19:55,988 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:19:55,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:19:55,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:19:55,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:19:55,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:19:55,989 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:19:55,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:19:55,989 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:19:55,989 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:19:55,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:19:55,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:19:55,990 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:19:55,990 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:19:55,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:19:55,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:19:55,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:19:55,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:19:55,991 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:19:55,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:19:55,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:19:55,992 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:19:55,992 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:19:56,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:19:56,322 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:19:56,325 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:19:56,327 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:19:56,328 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:19:56,328 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c [2020-10-15 02:19:56,393 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be3a60cdd/29c6e8ae12c44c42892b8b06c98fd73f/FLAGee8e3a38f [2020-10-15 02:19:56,900 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:19:56,901 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c [2020-10-15 02:19:56,913 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be3a60cdd/29c6e8ae12c44c42892b8b06c98fd73f/FLAGee8e3a38f [2020-10-15 02:19:57,269 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be3a60cdd/29c6e8ae12c44c42892b8b06c98fd73f [2020-10-15 02:19:57,278 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:19:57,280 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:19:57,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:19:57,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:19:57,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:19:57,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:19:57" (1/1) ... [2020-10-15 02:19:57,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e399bb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:57, skipping insertion in model container [2020-10-15 02:19:57,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:19:57" (1/1) ... [2020-10-15 02:19:57,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:19:57,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:19:57,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:19:57,610 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:19:57,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:19:57,891 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:19:57,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:57 WrapperNode [2020-10-15 02:19:57,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:19:57,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:19:57,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:19:57,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:19:57,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:57" (1/1) ... [2020-10-15 02:19:57,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:57" (1/1) ... [2020-10-15 02:19:57,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:57" (1/1) ... [2020-10-15 02:19:57,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:57" (1/1) ... [2020-10-15 02:19:57,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:57" (1/1) ... [2020-10-15 02:19:57,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:57" (1/1) ... [2020-10-15 02:19:57,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:57" (1/1) ... [2020-10-15 02:19:57,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:19:57,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:19:57,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:19:57,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:19:57,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:57" (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 [2020-10-15 02:19:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:19:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:19:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:19:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:19:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:19:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:19:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:19:58,043 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:19:58,043 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:19:58,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:19:58,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:19:58,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:19:58,044 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:19:58,044 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:19:58,045 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:19:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:19:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:19:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:19:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:19:58,048 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:19:58,048 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:19:58,048 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:19:58,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:19:58,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:19:58,977 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:19:58,979 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:19:58,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:19:58 BoogieIcfgContainer [2020-10-15 02:19:58,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:19:58,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:19:58,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:19:59,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:19:59,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:19:57" (1/3) ... [2020-10-15 02:19:59,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2af6e96a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:19:59, skipping insertion in model container [2020-10-15 02:19:59,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:57" (2/3) ... [2020-10-15 02:19:59,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2af6e96a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:19:59, skipping insertion in model container [2020-10-15 02:19:59,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:19:58" (3/3) ... [2020-10-15 02:19:59,008 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.3.ufo.BOUNDED-6.pals.c [2020-10-15 02:19:59,020 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:19:59,031 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:19:59,046 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:19:59,080 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:19:59,081 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:19:59,081 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:19:59,081 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:19:59,081 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:19:59,082 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:19:59,082 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:19:59,082 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:19:59,106 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2020-10-15 02:19:59,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-15 02:19:59,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:19:59,118 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] [2020-10-15 02:19:59,118 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:19:59,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:19:59,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1364421405, now seen corresponding path program 1 times [2020-10-15 02:19:59,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:19:59,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [193373121] [2020-10-15 02:19:59,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:19:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:59,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:59,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:59,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 02:19:59,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:59,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 413 [2020-10-15 02:19:59,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:59,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-15 02:19:59,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:59,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:20:00,108 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:00,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:00,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:00,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:00,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:00,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:00,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 02:20:00,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:00,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:00,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:00,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:00,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:00,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:00,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:00,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:00,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:00,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:20:00,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:00,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-15 02:20:00,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:00,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:00,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:00,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:00,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:00,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:00,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:20:00,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:00,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:00,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:00,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:00,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:00,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:20:00,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:00,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:00,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:00,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:00,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:00,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:00,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 02:20:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:00,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:00,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:00,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:00,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:00,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:20:00,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:00,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:00,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:00,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:00,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:00,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:20:00,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 02:20:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:00,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:00,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:00,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:00,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:00,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:20:00,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:00,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:00,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:00,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:00,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:00,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:20:00,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 02:20:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:00,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:00,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:00,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:00,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:00,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:20:00,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:00,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:00,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:00,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:00,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:00,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:00,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:00,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [193373121] [2020-10-15 02:20:00,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:00,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 02:20:00,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92436931] [2020-10-15 02:20:00,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 02:20:00,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:00,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 02:20:00,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:20:00,485 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 6 states. [2020-10-15 02:20:01,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:01,504 INFO L93 Difference]: Finished difference Result 258 states and 411 transitions. [2020-10-15 02:20:01,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 02:20:01,506 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-10-15 02:20:01,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:01,520 INFO L225 Difference]: With dead ends: 258 [2020-10-15 02:20:01,520 INFO L226 Difference]: Without dead ends: 162 [2020-10-15 02:20:01,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:20:01,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-15 02:20:01,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 150. [2020-10-15 02:20:01,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-15 02:20:01,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 243 transitions. [2020-10-15 02:20:01,588 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 243 transitions. Word has length 58 [2020-10-15 02:20:01,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:01,589 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 243 transitions. [2020-10-15 02:20:01,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 02:20:01,589 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 243 transitions. [2020-10-15 02:20:01,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-15 02:20:01,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:01,594 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] [2020-10-15 02:20:01,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:20:01,594 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:01,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:01,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1292034847, now seen corresponding path program 1 times [2020-10-15 02:20:01,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:01,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1331567955] [2020-10-15 02:20:01,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:01,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:01,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:02,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:02,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 02:20:02,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:02,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 507 [2020-10-15 02:20:02,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:02,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:02,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:20:02,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 02:20:02,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:20:02,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:02,312 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:02,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:02,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:02,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:02,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:02,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:02,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:20:02,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:02,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:02,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:02,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:02,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:02,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:02,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:02,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:02,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:02,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:20:02,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:02,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-15 02:20:02,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:02,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:02,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:20:02,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:02,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 02:20:02,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:02,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:20:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:02,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:02,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:02,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:02,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:02,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:20:02,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:02,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:02,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:02,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:02,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:02,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:02,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 02:20:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:02,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:02,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:02,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:02,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:02,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:20:02,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:02,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:02,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:02,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:02,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:02,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:02,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 02:20:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:02,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:02,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:02,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:02,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:02,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:20:02,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:02,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:02,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:02,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:02,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:02,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:02,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 02:20:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:02,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:02,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:02,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:02,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:02,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:20:02,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:02,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:02,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:02,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:02,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:02,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:02,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:02,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1331567955] [2020-10-15 02:20:02,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:02,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:20:02,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415182208] [2020-10-15 02:20:02,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:20:02,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:02,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:20:02,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:20:02,569 INFO L87 Difference]: Start difference. First operand 150 states and 243 transitions. Second operand 10 states. [2020-10-15 02:20:03,034 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:20:03,199 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:20:04,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:04,484 INFO L93 Difference]: Finished difference Result 262 states and 414 transitions. [2020-10-15 02:20:04,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 02:20:04,485 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2020-10-15 02:20:04,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:04,493 INFO L225 Difference]: With dead ends: 262 [2020-10-15 02:20:04,493 INFO L226 Difference]: Without dead ends: 171 [2020-10-15 02:20:04,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:20:04,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-15 02:20:04,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 150. [2020-10-15 02:20:04,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-15 02:20:04,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 216 transitions. [2020-10-15 02:20:04,531 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 216 transitions. Word has length 58 [2020-10-15 02:20:04,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:04,532 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 216 transitions. [2020-10-15 02:20:04,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:20:04,532 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 216 transitions. [2020-10-15 02:20:04,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-15 02:20:04,535 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:04,535 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] [2020-10-15 02:20:04,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:20:04,536 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:04,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:04,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1402954698, now seen corresponding path program 1 times [2020-10-15 02:20:04,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:04,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1421070607] [2020-10-15 02:20:04,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:04,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:04,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:04,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:06,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:09,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:09,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-15 02:20:09,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:20:09,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 02:20:09,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:09,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:09,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:20:09,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-15 02:20:09,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-15 02:20:09,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:09,757 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:09,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:09,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:09,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:09,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:09,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:09,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:20:09,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:09,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:09,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:09,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:09,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:09,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:09,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:09,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:09,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:09,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:20:09,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:09,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-15 02:20:09,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:09,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:09,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:09,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:09,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:20:09,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:09,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:20:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:09,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:09,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:09,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:09,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:09,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:20:09,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:09,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:09,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:09,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:09,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:09,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:09,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:20:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:09,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:09,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:09,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:09,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:09,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:20:09,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:09,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:09,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:20:09,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:20:09,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:20:09,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:10,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:20:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:10,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:10,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:10,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:10,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:10,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:20:10,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:10,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:10,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:10,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:10,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:10,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:10,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:20:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:10,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:10,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:10,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:10,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:10,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:20:10,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:10,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:10,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:10,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:10,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:10,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:10,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:10,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1421070607] [2020-10-15 02:20:10,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:10,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:20:10,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037719359] [2020-10-15 02:20:10,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:20:10,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:10,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:20:10,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:20:10,065 INFO L87 Difference]: Start difference. First operand 150 states and 216 transitions. Second operand 9 states. [2020-10-15 02:20:10,224 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:20:11,840 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:20:11,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:11,999 INFO L93 Difference]: Finished difference Result 342 states and 512 transitions. [2020-10-15 02:20:12,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:20:12,000 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-10-15 02:20:12,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:12,008 INFO L225 Difference]: With dead ends: 342 [2020-10-15 02:20:12,011 INFO L226 Difference]: Without dead ends: 257 [2020-10-15 02:20:12,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:20:12,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-10-15 02:20:12,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 228. [2020-10-15 02:20:12,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-15 02:20:12,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 337 transitions. [2020-10-15 02:20:12,078 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 337 transitions. Word has length 84 [2020-10-15 02:20:12,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:12,078 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 337 transitions. [2020-10-15 02:20:12,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:20:12,079 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 337 transitions. [2020-10-15 02:20:12,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-15 02:20:12,088 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:12,088 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:20:12,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:20:12,090 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:12,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:12,090 INFO L82 PathProgramCache]: Analyzing trace with hash -200737243, now seen corresponding path program 1 times [2020-10-15 02:20:12,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:12,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285673984] [2020-10-15 02:20:12,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:12,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:12,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:12,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:12,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:13,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:17,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:17,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-15 02:20:17,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:20:17,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 02:20:17,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:17,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:20:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 02:20:17,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:17,353 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:17,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:17,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:17,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:17,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:17,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:17,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:20:17,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:17,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:17,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:17,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:17,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:17,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:17,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:17,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:17,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:17,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:20:17,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:17,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-15 02:20:17,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:17,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:17,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:17,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:17,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:17,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:17,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:20:17,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:17,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:17,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:17,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:17,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:17,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:20:17,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:17,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:17,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:17,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:17,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:17,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:17,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:20:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:17,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:17,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:17,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:20:17,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:17,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:20:17,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:17,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:20:17,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:20:17,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:17,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:20:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:17,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:17,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:17,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:17,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:17,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:20:17,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:17,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:17,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:17,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:17,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:17,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:17,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:20:17,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:17,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:17,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:17,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:17,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:17,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:20:17,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:17,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:17,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:17,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:17,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:17,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:17,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:17,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285673984] [2020-10-15 02:20:17,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:17,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:20:17,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845330075] [2020-10-15 02:20:17,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:20:17,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:17,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:20:17,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:20:17,706 INFO L87 Difference]: Start difference. First operand 228 states and 337 transitions. Second operand 9 states. [2020-10-15 02:20:17,903 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:20:18,132 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-15 02:20:18,382 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-15 02:20:18,911 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 153 [2020-10-15 02:20:19,561 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:20:21,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:21,902 INFO L93 Difference]: Finished difference Result 810 states and 1199 transitions. [2020-10-15 02:20:21,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:20:21,904 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 86 [2020-10-15 02:20:21,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:21,909 INFO L225 Difference]: With dead ends: 810 [2020-10-15 02:20:21,909 INFO L226 Difference]: Without dead ends: 609 [2020-10-15 02:20:21,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:20:21,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2020-10-15 02:20:21,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 558. [2020-10-15 02:20:21,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-10-15 02:20:21,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 816 transitions. [2020-10-15 02:20:21,983 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 816 transitions. Word has length 86 [2020-10-15 02:20:21,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:21,983 INFO L479 AbstractCegarLoop]: Abstraction has 558 states and 816 transitions. [2020-10-15 02:20:21,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:20:21,984 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 816 transitions. [2020-10-15 02:20:21,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-15 02:20:21,986 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:21,986 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:20:21,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:20:21,987 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:21,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:21,987 INFO L82 PathProgramCache]: Analyzing trace with hash -958758245, now seen corresponding path program 1 times [2020-10-15 02:20:21,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:21,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1254282415] [2020-10-15 02:20:21,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:22,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:22,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:22,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:22,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:22,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:25,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:27,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:27,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-15 02:20:27,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:20:27,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:20:27,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:27,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:27,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:27,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:20:27,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 02:20:27,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:27,185 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:27,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:27,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:27,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:27,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:27,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:27,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:20:27,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:27,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:27,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:27,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:27,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:27,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:27,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:27,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:27,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:27,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:20:27,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:27,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-15 02:20:27,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:27,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:27,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:27,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:27,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:20:27,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:27,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:20:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:27,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:27,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:27,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:27,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:27,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:20:27,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:27,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:27,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:27,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:27,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:27,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:27,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:20:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:27,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:27,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:27,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:20:27,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:27,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:20:27,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:27,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:27,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:27,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:20:27,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:20:27,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:27,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:20:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:27,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:27,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:27,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:27,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:27,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:20:27,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:27,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:27,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:27,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:27,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:27,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:27,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:20:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:27,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:27,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:27,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:27,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:27,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:20:27,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:27,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:27,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:27,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:27,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:27,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:27,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:27,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1254282415] [2020-10-15 02:20:27,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:27,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:20:27,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59588263] [2020-10-15 02:20:27,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:20:27,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:27,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:20:27,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:20:27,485 INFO L87 Difference]: Start difference. First operand 558 states and 816 transitions. Second operand 9 states. [2020-10-15 02:20:27,703 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:20:27,849 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:20:28,047 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:20:28,222 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:20:29,008 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:20:30,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:30,802 INFO L93 Difference]: Finished difference Result 1681 states and 2494 transitions. [2020-10-15 02:20:30,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:20:30,804 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 86 [2020-10-15 02:20:30,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:30,815 INFO L225 Difference]: With dead ends: 1681 [2020-10-15 02:20:30,816 INFO L226 Difference]: Without dead ends: 1155 [2020-10-15 02:20:30,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:20:30,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2020-10-15 02:20:30,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1069. [2020-10-15 02:20:30,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1069 states. [2020-10-15 02:20:30,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1557 transitions. [2020-10-15 02:20:30,906 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1557 transitions. Word has length 86 [2020-10-15 02:20:30,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:30,907 INFO L479 AbstractCegarLoop]: Abstraction has 1069 states and 1557 transitions. [2020-10-15 02:20:30,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:20:30,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1557 transitions. [2020-10-15 02:20:30,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-15 02:20:30,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:30,911 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:20:30,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:20:30,912 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:30,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:30,912 INFO L82 PathProgramCache]: Analyzing trace with hash 727073719, now seen corresponding path program 1 times [2020-10-15 02:20:30,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:30,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [232233325] [2020-10-15 02:20:30,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:30,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:31,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:31,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:31,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:31,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:35,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:35,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:20:35,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:20:35,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 02:20:35,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:35,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:35,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:35,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:20:35,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-15 02:20:35,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:36,126 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:36,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:36,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:36,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:36,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:36,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:36,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:20:36,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:36,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:36,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:36,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:36,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:36,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:36,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:36,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:36,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:36,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:20:36,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:36,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-15 02:20:36,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:36,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:36,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:36,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:36,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 02:20:36,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:36,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:20:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:36,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:36,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:36,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:36,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:36,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:20:36,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:36,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:36,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:36,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:36,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:36,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:36,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:20:36,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:36,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:36,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:36,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:20:36,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:36,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:20:36,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:36,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:36,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:36,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:20:36,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:20:36,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:36,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-15 02:20:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:36,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:36,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:36,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:36,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:36,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:20:36,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:36,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:36,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:36,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:36,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:36,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:36,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-15 02:20:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:36,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:36,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:36,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:36,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:36,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:20:36,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:36,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:36,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:36,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:36,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:36,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:36,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:36,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [232233325] [2020-10-15 02:20:36,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:36,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:20:36,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871555809] [2020-10-15 02:20:36,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:20:36,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:36,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:20:36,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:20:36,405 INFO L87 Difference]: Start difference. First operand 1069 states and 1557 transitions. Second operand 9 states. [2020-10-15 02:20:36,574 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:20:36,746 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:20:36,920 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:20:37,088 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:20:37,809 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:20:39,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:39,541 INFO L93 Difference]: Finished difference Result 3195 states and 4658 transitions. [2020-10-15 02:20:39,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:20:39,548 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 87 [2020-10-15 02:20:39,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:39,560 INFO L225 Difference]: With dead ends: 3195 [2020-10-15 02:20:39,561 INFO L226 Difference]: Without dead ends: 2146 [2020-10-15 02:20:39,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:20:39,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2020-10-15 02:20:39,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 2048. [2020-10-15 02:20:39,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2048 states. [2020-10-15 02:20:39,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2048 states to 2048 states and 2931 transitions. [2020-10-15 02:20:39,738 INFO L78 Accepts]: Start accepts. Automaton has 2048 states and 2931 transitions. Word has length 87 [2020-10-15 02:20:39,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:39,740 INFO L479 AbstractCegarLoop]: Abstraction has 2048 states and 2931 transitions. [2020-10-15 02:20:39,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:20:39,740 INFO L276 IsEmpty]: Start isEmpty. Operand 2048 states and 2931 transitions. [2020-10-15 02:20:39,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-15 02:20:39,745 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:39,745 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:20:39,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:20:39,746 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:39,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:39,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1455298021, now seen corresponding path program 1 times [2020-10-15 02:20:39,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:39,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [354299782] [2020-10-15 02:20:39,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:39,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:39,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:39,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:39,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:40,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:40,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:44,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:44,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:20:44,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:20:44,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:20:44,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:44,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:44,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:44,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:20:44,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:20:44,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:44,950 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:44,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:44,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:44,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:44,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:44,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:44,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:20:44,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:44,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:44,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:44,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:44,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:44,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:44,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:44,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:44,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:44,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:44,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:45,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:45,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:20:45,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:20:45,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-15 02:20:45,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:45,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:45,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:45,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:20:45,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 02:20:45,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:45,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-15 02:20:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:45,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:45,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:45,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:45,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:45,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:20:45,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:45,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:45,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:45,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:45,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:45,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:45,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:20:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:45,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:45,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:45,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:20:45,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:45,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:20:45,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:45,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:45,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:45,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:20:45,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:20:45,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:45,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-15 02:20:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:45,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:45,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:45,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:45,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:45,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:20:45,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:45,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:45,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:45,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:45,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:45,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:45,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-15 02:20:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:45,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:45,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:45,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:45,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:45,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:20:45,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:45,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:45,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:45,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:45,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:45,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:45,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:45,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [354299782] [2020-10-15 02:20:45,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:45,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:20:45,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766597812] [2020-10-15 02:20:45,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:20:45,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:45,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:20:45,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:20:45,358 INFO L87 Difference]: Start difference. First operand 2048 states and 2931 transitions. Second operand 10 states. [2020-10-15 02:20:45,580 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:20:45,865 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:20:46,040 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:20:46,249 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:20:46,484 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:20:46,669 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:20:46,910 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:20:47,121 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:20:51,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:51,361 INFO L93 Difference]: Finished difference Result 7444 states and 10741 transitions. [2020-10-15 02:20:51,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:20:51,362 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-10-15 02:20:51,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:51,388 INFO L225 Difference]: With dead ends: 7444 [2020-10-15 02:20:51,389 INFO L226 Difference]: Without dead ends: 5262 [2020-10-15 02:20:51,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:20:51,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5262 states. [2020-10-15 02:20:51,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5262 to 5016. [2020-10-15 02:20:51,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5016 states. [2020-10-15 02:20:51,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5016 states to 5016 states and 7230 transitions. [2020-10-15 02:20:51,799 INFO L78 Accepts]: Start accepts. Automaton has 5016 states and 7230 transitions. Word has length 87 [2020-10-15 02:20:51,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:51,799 INFO L479 AbstractCegarLoop]: Abstraction has 5016 states and 7230 transitions. [2020-10-15 02:20:51,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:20:51,800 INFO L276 IsEmpty]: Start isEmpty. Operand 5016 states and 7230 transitions. [2020-10-15 02:20:51,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-15 02:20:51,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:51,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:20:51,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:20:51,813 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:51,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:51,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1793540448, now seen corresponding path program 1 times [2020-10-15 02:20:51,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:51,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622716048] [2020-10-15 02:20:51,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:51,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:51,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:51,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:52,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:55,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:55,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-15 02:20:55,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:20:55,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3524 [2020-10-15 02:20:55,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:55,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:55,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:55,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:20:55,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-15 02:20:55,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:55,589 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:55,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:55,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:55,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:55,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:55,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:55,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:20:55,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:55,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:55,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:55,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:55,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:55,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:55,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:20:55,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:55,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-15 02:20:55,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:55,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:55,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:55,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:55,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:20:55,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:55,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:20:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:55,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:55,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:55,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:55,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:55,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:20:55,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:55,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:55,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:55,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:55,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:55,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:55,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:20:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:55,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:55,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:55,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:20:55,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:55,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:20:55,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:55,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:55,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:55,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:55,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:20:55,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:55,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:20:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:55,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:55,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:55,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:55,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:55,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:20:55,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:55,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:55,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:55,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:55,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:55,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:55,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:20:55,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:55,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:55,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:55,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:55,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:55,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:20:55,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:55,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:55,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:55,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:55,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:55,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:55,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:55,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622716048] [2020-10-15 02:20:55,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:55,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:20:55,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211124888] [2020-10-15 02:20:55,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:20:55,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:55,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:20:55,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:20:55,859 INFO L87 Difference]: Start difference. First operand 5016 states and 7230 transitions. Second operand 9 states. [2020-10-15 02:20:56,053 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:20:56,264 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:20:56,531 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:20:56,693 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:20:57,314 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:20:59,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:59,277 INFO L93 Difference]: Finished difference Result 9725 states and 13924 transitions. [2020-10-15 02:20:59,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:20:59,281 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-10-15 02:20:59,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:59,306 INFO L225 Difference]: With dead ends: 9725 [2020-10-15 02:20:59,307 INFO L226 Difference]: Without dead ends: 4782 [2020-10-15 02:20:59,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:20:59,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4782 states. [2020-10-15 02:20:59,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4782 to 3986. [2020-10-15 02:20:59,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3986 states. [2020-10-15 02:20:59,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3986 states to 3986 states and 5630 transitions. [2020-10-15 02:20:59,597 INFO L78 Accepts]: Start accepts. Automaton has 3986 states and 5630 transitions. Word has length 88 [2020-10-15 02:20:59,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:59,598 INFO L479 AbstractCegarLoop]: Abstraction has 3986 states and 5630 transitions. [2020-10-15 02:20:59,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:20:59,598 INFO L276 IsEmpty]: Start isEmpty. Operand 3986 states and 5630 transitions. [2020-10-15 02:20:59,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-15 02:20:59,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:59,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:20:59,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:20:59,607 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:59,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:59,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1914887563, now seen corresponding path program 1 times [2020-10-15 02:20:59,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:59,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1699079938] [2020-10-15 02:20:59,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:59,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:59,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:59,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:59,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:59,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:00,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:04,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:04,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:04,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-15 02:21:04,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:21:04,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 02:21:04,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:04,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:04,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:21:04,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:21:04,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:21:04,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:04,826 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:04,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:04,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:04,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:04,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:04,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:04,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:21:04,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:04,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:04,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:04,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:04,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:21:04,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:04,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:04,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:04,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:04,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:21:04,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:04,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-15 02:21:04,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:04,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:04,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:21:04,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:04,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:21:04,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:04,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:21:04,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:04,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:04,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:04,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:04,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:04,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:21:04,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:04,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:04,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:04,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:04,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:04,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:04,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:21:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:05,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:05,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:05,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:21:05,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:05,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:21:05,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:05,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:05,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:21:05,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:21:05,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:21:05,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:05,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:21:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:05,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:05,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:05,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:05,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:05,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:21:05,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:05,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:05,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:05,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:05,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:21:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:05,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:05,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:05,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:05,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:05,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:21:05,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:05,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:05,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:05,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:05,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:05,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:05,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:05,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1699079938] [2020-10-15 02:21:05,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:05,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:21:05,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668139483] [2020-10-15 02:21:05,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:21:05,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:05,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:21:05,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:21:05,130 INFO L87 Difference]: Start difference. First operand 3986 states and 5630 transitions. Second operand 14 states. [2020-10-15 02:21:05,337 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:05,525 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:05,923 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:21:06,265 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:21:08,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:08,603 INFO L93 Difference]: Finished difference Result 6525 states and 9244 transitions. [2020-10-15 02:21:08,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 02:21:08,604 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 88 [2020-10-15 02:21:08,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:08,635 INFO L225 Difference]: With dead ends: 6525 [2020-10-15 02:21:08,635 INFO L226 Difference]: Without dead ends: 5480 [2020-10-15 02:21:08,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=247, Invalid=683, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:21:08,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5480 states. [2020-10-15 02:21:08,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5480 to 4568. [2020-10-15 02:21:08,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4568 states. [2020-10-15 02:21:08,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4568 states to 4568 states and 6431 transitions. [2020-10-15 02:21:08,954 INFO L78 Accepts]: Start accepts. Automaton has 4568 states and 6431 transitions. Word has length 88 [2020-10-15 02:21:08,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:08,955 INFO L479 AbstractCegarLoop]: Abstraction has 4568 states and 6431 transitions. [2020-10-15 02:21:08,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:21:08,955 INFO L276 IsEmpty]: Start isEmpty. Operand 4568 states and 6431 transitions. [2020-10-15 02:21:08,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-15 02:21:08,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:08,964 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:21:08,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:21:08,965 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:08,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:08,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1774338953, now seen corresponding path program 1 times [2020-10-15 02:21:08,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:08,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788887088] [2020-10-15 02:21:08,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:09,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:09,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:09,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:09,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:09,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:12,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:14,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:14,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-15 02:21:14,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:21:14,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-15 02:21:14,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:14,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:14,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:21:14,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:21:14,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-15 02:21:14,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:14,209 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:14,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:14,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:14,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:14,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:14,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:14,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:21:14,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:14,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:14,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:14,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:14,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:21:14,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:14,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:14,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:14,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:14,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:21:14,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:14,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-15 02:21:14,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:14,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:14,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:21:14,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:14,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:21:14,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:14,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:21:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:14,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:14,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:14,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:14,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:14,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:21:14,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:14,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:14,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:14,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:14,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:14,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:14,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:21:14,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:14,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:14,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:14,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:21:14,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:14,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:21:14,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:14,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:14,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:21:14,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:21:14,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:21:14,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:14,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:21:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:14,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:14,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:14,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:14,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:14,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:21:14,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:14,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:14,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:14,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:14,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:14,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:14,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:21:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:14,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:14,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:14,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:14,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:14,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:21:14,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:14,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:14,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:14,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:14,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:14,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:14,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:14,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788887088] [2020-10-15 02:21:14,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:14,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:21:14,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371242074] [2020-10-15 02:21:14,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:21:14,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:14,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:21:14,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:21:14,506 INFO L87 Difference]: Start difference. First operand 4568 states and 6431 transitions. Second operand 14 states. [2020-10-15 02:21:14,711 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:14,874 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:15,311 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:21:15,653 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:21:17,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:17,503 INFO L93 Difference]: Finished difference Result 6754 states and 9567 transitions. [2020-10-15 02:21:17,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:21:17,504 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 88 [2020-10-15 02:21:17,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:17,529 INFO L225 Difference]: With dead ends: 6754 [2020-10-15 02:21:17,529 INFO L226 Difference]: Without dead ends: 5593 [2020-10-15 02:21:17,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=216, Invalid=596, Unknown=0, NotChecked=0, Total=812 [2020-10-15 02:21:17,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5593 states. [2020-10-15 02:21:17,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5593 to 4519. [2020-10-15 02:21:17,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4519 states. [2020-10-15 02:21:17,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4519 states to 4519 states and 6340 transitions. [2020-10-15 02:21:17,945 INFO L78 Accepts]: Start accepts. Automaton has 4519 states and 6340 transitions. Word has length 88 [2020-10-15 02:21:17,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:17,946 INFO L479 AbstractCegarLoop]: Abstraction has 4519 states and 6340 transitions. [2020-10-15 02:21:17,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:21:17,946 INFO L276 IsEmpty]: Start isEmpty. Operand 4519 states and 6340 transitions. [2020-10-15 02:21:17,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-15 02:21:17,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:17,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:21:17,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:21:17,959 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:17,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:17,959 INFO L82 PathProgramCache]: Analyzing trace with hash 715190009, now seen corresponding path program 1 times [2020-10-15 02:21:17,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:17,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [716718952] [2020-10-15 02:21:17,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:18,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:18,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:18,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:18,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:21,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:21,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-15 02:21:21,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:21:21,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3616 [2020-10-15 02:21:21,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:21,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:21,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:21:21,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-15 02:21:21,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-15 02:21:21,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:21,775 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:21,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:21,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:21,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:21,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:21,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:21,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:21:21,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:21,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:21,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:21,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:21,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:21,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:21,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:21,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:21,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:21,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:21:21,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:21,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:21:21,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:21,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:21,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:21,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:21,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:21:21,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:21,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:21:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:21,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:21,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:21,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:21,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:21,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:21:21,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:21,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:21,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:21,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:21,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:21,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:21,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:21:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:21,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:21,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:21,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:21:21,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:21,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:21:21,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:21,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:21,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:21,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:21,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:21:21,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:21,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:21:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:21,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:21,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:21,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:21,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:21,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:21:21,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:21,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:21,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:21:21,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:21:21,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:21:21,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:21,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:21:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:21,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:21,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:21,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:21,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:21,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:21:21,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:21,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:21,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:21,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:21,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:21,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:21,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:21,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [716718952] [2020-10-15 02:21:21,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:21,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:21:21,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916563954] [2020-10-15 02:21:21,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:21:21,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:21,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:21:21,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:21:21,962 INFO L87 Difference]: Start difference. First operand 4519 states and 6340 transitions. Second operand 9 states. [2020-10-15 02:21:22,123 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:21:23,852 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:21:24,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:24,028 INFO L93 Difference]: Finished difference Result 9639 states and 13804 transitions. [2020-10-15 02:21:24,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:21:24,031 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-10-15 02:21:24,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:24,056 INFO L225 Difference]: With dead ends: 9639 [2020-10-15 02:21:24,056 INFO L226 Difference]: Without dead ends: 6743 [2020-10-15 02:21:24,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:21:24,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6743 states. [2020-10-15 02:21:24,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6743 to 6368. [2020-10-15 02:21:24,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6368 states. [2020-10-15 02:21:24,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6368 states to 6368 states and 8997 transitions. [2020-10-15 02:21:24,626 INFO L78 Accepts]: Start accepts. Automaton has 6368 states and 8997 transitions. Word has length 88 [2020-10-15 02:21:24,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:24,627 INFO L479 AbstractCegarLoop]: Abstraction has 6368 states and 8997 transitions. [2020-10-15 02:21:24,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:21:24,627 INFO L276 IsEmpty]: Start isEmpty. Operand 6368 states and 8997 transitions. [2020-10-15 02:21:24,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-15 02:21:24,636 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:24,637 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] [2020-10-15 02:21:24,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:21:24,637 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:24,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:24,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1061586194, now seen corresponding path program 1 times [2020-10-15 02:21:24,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:24,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [201891429] [2020-10-15 02:21:24,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:24,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:24,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:24,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:24,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:25,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:26,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:29,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:29,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-15 02:21:29,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:21:29,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 02:21:29,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:29,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:29,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:29,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:21:29,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-15 02:21:29,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:29,832 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:29,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:29,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:29,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:29,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:29,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:29,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:21:29,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:29,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:29,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:29,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:29,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:29,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:29,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:29,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:29,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:29,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:29,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:29,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:21:29,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:21:29,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-15 02:21:29,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:29,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:29,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:29,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:21:29,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:21:29,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:29,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-15 02:21:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:29,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:29,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:29,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:29,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:29,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:21:29,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:29,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:29,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:29,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:29,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:29,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:30,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:21:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:30,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:30,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:30,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:21:30,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:30,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:21:30,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:30,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:30,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:30,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:30,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:21:30,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:30,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:21:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:30,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:30,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:30,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:21:30,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:30,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:21:30,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:30,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:30,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:30,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:21:30,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:21:30,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:30,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:21:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:30,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:30,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:30,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:30,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:30,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:21:30,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:30,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:30,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:30,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:30,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:30,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:30,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:30,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [201891429] [2020-10-15 02:21:30,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:30,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:21:30,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061293520] [2020-10-15 02:21:30,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:21:30,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:30,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:21:30,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:21:30,111 INFO L87 Difference]: Start difference. First operand 6368 states and 8997 transitions. Second operand 10 states. [2020-10-15 02:21:30,276 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:30,549 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:30,791 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:21:30,982 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:21:31,177 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:21:31,387 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-15 02:21:34,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:34,541 INFO L93 Difference]: Finished difference Result 14055 states and 20227 transitions. [2020-10-15 02:21:34,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:21:34,544 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2020-10-15 02:21:34,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:34,575 INFO L225 Difference]: With dead ends: 14055 [2020-10-15 02:21:34,575 INFO L226 Difference]: Without dead ends: 8468 [2020-10-15 02:21:34,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-10-15 02:21:34,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8468 states. [2020-10-15 02:21:35,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8468 to 8261. [2020-10-15 02:21:35,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8261 states. [2020-10-15 02:21:35,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8261 states to 8261 states and 11624 transitions. [2020-10-15 02:21:35,173 INFO L78 Accepts]: Start accepts. Automaton has 8261 states and 11624 transitions. Word has length 90 [2020-10-15 02:21:35,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:35,174 INFO L479 AbstractCegarLoop]: Abstraction has 8261 states and 11624 transitions. [2020-10-15 02:21:35,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:21:35,174 INFO L276 IsEmpty]: Start isEmpty. Operand 8261 states and 11624 transitions. [2020-10-15 02:21:35,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-15 02:21:35,185 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:35,186 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] [2020-10-15 02:21:35,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 02:21:35,186 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:35,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:35,186 INFO L82 PathProgramCache]: Analyzing trace with hash 797692617, now seen corresponding path program 1 times [2020-10-15 02:21:35,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:35,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823387155] [2020-10-15 02:21:35,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:35,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:35,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:35,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:35,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:35,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:35,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:40,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:40,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-15 02:21:40,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:21:40,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 02:21:40,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:40,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:40,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:40,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:21:40,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-15 02:21:40,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:40,382 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:40,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:40,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:40,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:40,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:40,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:40,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:40,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:21:40,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:40,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:40,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:40,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:40,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:40,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:40,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:40,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:40,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:40,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:21:40,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:40,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 02:21:40,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:40,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:40,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:40,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:40,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:21:40,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:40,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:21:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:40,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:40,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:40,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:40,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:40,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:21:40,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:40,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:40,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:40,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:40,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:40,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:40,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:21:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:40,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:40,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:40,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:21:40,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:40,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:21:40,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:40,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:40,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:40,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:40,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:21:40,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:40,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:21:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:40,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:40,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:40,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:21:40,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:40,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:21:40,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:40,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:40,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:40,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:21:40,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:21:40,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:40,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:21:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:40,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:40,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:40,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:40,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:40,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:21:40,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:40,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:40,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:40,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:40,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:40,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:40,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:40,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823387155] [2020-10-15 02:21:40,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:40,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:21:40,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341884404] [2020-10-15 02:21:40,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:21:40,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:40,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:21:40,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:21:40,650 INFO L87 Difference]: Start difference. First operand 8261 states and 11624 transitions. Second operand 9 states. [2020-10-15 02:21:40,829 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:41,028 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-15 02:21:41,242 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-15 02:21:41,774 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 153 [2020-10-15 02:21:42,404 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:46,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:46,366 INFO L93 Difference]: Finished difference Result 25410 states and 36438 transitions. [2020-10-15 02:21:46,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:21:46,368 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2020-10-15 02:21:46,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:46,473 INFO L225 Difference]: With dead ends: 25410 [2020-10-15 02:21:46,473 INFO L226 Difference]: Without dead ends: 18299 [2020-10-15 02:21:46,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:21:46,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18299 states. [2020-10-15 02:21:47,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18299 to 17994. [2020-10-15 02:21:47,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17994 states. [2020-10-15 02:21:47,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17994 states to 17994 states and 25253 transitions. [2020-10-15 02:21:47,695 INFO L78 Accepts]: Start accepts. Automaton has 17994 states and 25253 transitions. Word has length 91 [2020-10-15 02:21:47,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:47,696 INFO L479 AbstractCegarLoop]: Abstraction has 17994 states and 25253 transitions. [2020-10-15 02:21:47,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:21:47,696 INFO L276 IsEmpty]: Start isEmpty. Operand 17994 states and 25253 transitions. [2020-10-15 02:21:47,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-15 02:21:47,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:47,715 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] [2020-10-15 02:21:47,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 02:21:47,715 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:47,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:47,715 INFO L82 PathProgramCache]: Analyzing trace with hash 922677231, now seen corresponding path program 1 times [2020-10-15 02:21:47,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:47,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [846274073] [2020-10-15 02:21:47,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:47,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:47,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:47,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:47,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:47,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:47,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:51,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:51,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-15 02:21:51,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:21:51,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4202 [2020-10-15 02:21:51,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:51,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:51,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:51,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:21:51,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-15 02:21:51,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:52,116 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:52,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:52,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:52,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:52,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:52,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:52,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:21:52,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:52,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:52,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:52,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:52,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:52,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:52,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:52,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:52,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:52,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:52,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-15 02:21:52,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:21:52,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-15 02:21:52,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:52,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:52,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:52,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:52,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:21:52,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:52,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:21:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:52,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:52,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:52,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:52,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:52,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:21:52,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:52,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:52,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:52,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:52,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:52,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:52,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-15 02:21:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:52,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:52,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:52,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:21:52,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:52,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:21:52,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:52,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:52,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:52,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:52,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:21:52,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:52,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:21:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:52,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:52,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:52,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:21:52,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:52,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:21:52,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:52,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:52,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:52,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:21:52,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:21:52,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:52,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:21:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:52,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:52,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:52,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:52,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:52,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:21:52,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:52,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:52,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:52,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:52,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:52,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:52,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:52,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [846274073] [2020-10-15 02:21:52,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:52,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:21:52,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184507857] [2020-10-15 02:21:52,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:21:52,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:52,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:21:52,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:21:52,498 INFO L87 Difference]: Start difference. First operand 17994 states and 25253 transitions. Second operand 9 states. [2020-10-15 02:21:52,686 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:52,885 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-15 02:21:53,172 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-15 02:21:53,683 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:56,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:56,485 INFO L93 Difference]: Finished difference Result 23636 states and 33064 transitions. [2020-10-15 02:21:56,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:21:56,486 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2020-10-15 02:21:56,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:56,557 INFO L225 Difference]: With dead ends: 23636 [2020-10-15 02:21:56,557 INFO L226 Difference]: Without dead ends: 18708 [2020-10-15 02:21:56,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2020-10-15 02:21:56,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18708 states. [2020-10-15 02:21:57,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18708 to 17884. [2020-10-15 02:21:57,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17884 states. [2020-10-15 02:21:57,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17884 states to 17884 states and 24955 transitions. [2020-10-15 02:21:57,671 INFO L78 Accepts]: Start accepts. Automaton has 17884 states and 24955 transitions. Word has length 91 [2020-10-15 02:21:57,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:57,671 INFO L479 AbstractCegarLoop]: Abstraction has 17884 states and 24955 transitions. [2020-10-15 02:21:57,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:21:57,671 INFO L276 IsEmpty]: Start isEmpty. Operand 17884 states and 24955 transitions. [2020-10-15 02:21:57,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-15 02:21:57,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:57,687 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] [2020-10-15 02:21:57,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 02:21:57,687 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:57,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:57,688 INFO L82 PathProgramCache]: Analyzing trace with hash -595462214, now seen corresponding path program 1 times [2020-10-15 02:21:57,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:57,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2068373634] [2020-10-15 02:21:57,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:57,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:57,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:57,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:57,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:58,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:02,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:02,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-15 02:22:02,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:22:02,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 02:22:02,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:02,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:02,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:22:02,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:22:02,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-15 02:22:02,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:02,898 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:02,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:02,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:02,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:02,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:02,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:02,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:22:02,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:02,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:02,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:02,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:02,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:22:02,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:02,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:02,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:02,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:02,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:22:02,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:02,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 02:22:02,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:02,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:02,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:02,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:02,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:22:02,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:03,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:22:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:03,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:03,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:03,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:03,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:03,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:22:03,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:03,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:03,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:03,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:03,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:03,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:03,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:22:03,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:03,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:03,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:03,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:03,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:03,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:22:03,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:03,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:03,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:03,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:03,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:22:03,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:03,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:22:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:03,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:03,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:03,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:03,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:03,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:22:03,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:03,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:22:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:22:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:22:03,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:03,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:22:03,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:03,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:03,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:03,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:03,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:03,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:22:03,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:03,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:03,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:03,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:03,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:03,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:03,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:03,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2068373634] [2020-10-15 02:22:03,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:03,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:22:03,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936710004] [2020-10-15 02:22:03,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:22:03,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:03,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:22:03,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:22:03,181 INFO L87 Difference]: Start difference. First operand 17884 states and 24955 transitions. Second operand 14 states. [2020-10-15 02:22:03,381 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:03,542 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:22:03,950 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:22:04,277 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:22:06,663 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-15 02:22:07,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:07,017 INFO L93 Difference]: Finished difference Result 25007 states and 35071 transitions. [2020-10-15 02:22:07,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 02:22:07,018 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 92 [2020-10-15 02:22:07,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:07,079 INFO L225 Difference]: With dead ends: 25007 [2020-10-15 02:22:07,080 INFO L226 Difference]: Without dead ends: 20678 [2020-10-15 02:22:07,096 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=247, Invalid=683, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:22:07,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20678 states. [2020-10-15 02:22:08,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20678 to 19526. [2020-10-15 02:22:08,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19526 states. [2020-10-15 02:22:08,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19526 states to 19526 states and 27181 transitions. [2020-10-15 02:22:08,083 INFO L78 Accepts]: Start accepts. Automaton has 19526 states and 27181 transitions. Word has length 92 [2020-10-15 02:22:08,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:08,083 INFO L479 AbstractCegarLoop]: Abstraction has 19526 states and 27181 transitions. [2020-10-15 02:22:08,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:22:08,084 INFO L276 IsEmpty]: Start isEmpty. Operand 19526 states and 27181 transitions. [2020-10-15 02:22:08,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-15 02:22:08,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:08,102 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] [2020-10-15 02:22:08,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 02:22:08,102 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:08,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:08,102 INFO L82 PathProgramCache]: Analyzing trace with hash 2111157180, now seen corresponding path program 1 times [2020-10-15 02:22:08,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:08,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1261524086] [2020-10-15 02:22:08,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:08,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:08,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:08,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:09,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:11,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:11,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-15 02:22:11,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:22:11,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3834 [2020-10-15 02:22:11,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:11,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:11,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:22:11,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-15 02:22:11,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 02:22:11,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:12,123 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:12,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:12,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:12,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:12,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:12,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:12,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:22:12,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:12,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:12,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:12,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:12,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:12,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:12,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:12,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:12,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:12,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:22:12,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:12,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-15 02:22:12,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:12,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:12,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:12,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:12,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:22:12,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:12,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:22:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:12,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:12,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:12,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:12,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:12,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:22:12,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:12,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:12,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:12,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:22:12,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:22:12,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:12,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:22:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:12,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:12,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:12,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:12,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:12,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:22:12,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:12,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:12,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:12,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:22:12,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:22:12,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:12,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:22:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:12,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:12,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:12,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:12,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:12,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:22:12,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:12,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:12,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:12,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:22:12,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:22:12,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:12,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:22:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:12,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:12,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:12,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:12,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:12,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:22:12,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:12,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:12,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:12,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:22:12,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:22:12,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:12,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:12,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1261524086] [2020-10-15 02:22:12,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:12,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:22:12,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364484857] [2020-10-15 02:22:12,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:22:12,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:12,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:22:12,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:22:12,494 INFO L87 Difference]: Start difference. First operand 19526 states and 27181 transitions. Second operand 13 states. [2020-10-15 02:22:12,701 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:22:13,108 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:22:13,309 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:22:14,012 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:22:14,265 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-15 02:22:14,800 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 152 [2020-10-15 02:22:15,056 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-15 02:22:15,663 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2020-10-15 02:22:15,858 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-15 02:22:16,542 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-15 02:22:18,397 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-15 02:22:18,537 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2020-10-15 02:22:19,306 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-15 02:22:19,469 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-10-15 02:22:20,245 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-10-15 02:22:21,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:21,024 INFO L93 Difference]: Finished difference Result 65373 states and 93211 transitions. [2020-10-15 02:22:21,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-15 02:22:21,024 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 92 [2020-10-15 02:22:21,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:21,205 INFO L225 Difference]: With dead ends: 65373 [2020-10-15 02:22:21,206 INFO L226 Difference]: Without dead ends: 51499 [2020-10-15 02:22:21,259 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=355, Invalid=1127, Unknown=0, NotChecked=0, Total=1482 [2020-10-15 02:22:21,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51499 states. [2020-10-15 02:22:24,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51499 to 49401. [2020-10-15 02:22:24,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49401 states. [2020-10-15 02:22:24,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49401 states to 49401 states and 69679 transitions. [2020-10-15 02:22:24,654 INFO L78 Accepts]: Start accepts. Automaton has 49401 states and 69679 transitions. Word has length 92 [2020-10-15 02:22:24,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:24,654 INFO L479 AbstractCegarLoop]: Abstraction has 49401 states and 69679 transitions. [2020-10-15 02:22:24,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:22:24,655 INFO L276 IsEmpty]: Start isEmpty. Operand 49401 states and 69679 transitions. [2020-10-15 02:22:24,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 02:22:24,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:24,686 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] [2020-10-15 02:22:24,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 02:22:24,687 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:24,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:24,687 INFO L82 PathProgramCache]: Analyzing trace with hash 991840770, now seen corresponding path program 1 times [2020-10-15 02:22:24,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:24,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674040314] [2020-10-15 02:22:24,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:24,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:24,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:24,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:24,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:27,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:29,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:29,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-15 02:22:29,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:22:29,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 02:22:29,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:29,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:29,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:22:29,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-15 02:22:29,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:22:29,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:29,896 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:29,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:29,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:29,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:29,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:29,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:29,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:22:29,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:29,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:29,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:29,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:29,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:29,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:29,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:29,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:29,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:29,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:22:29,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:29,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:22:29,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:29,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:29,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:29,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:29,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:22:29,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:29,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:22:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:29,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:29,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:29,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:29,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:29,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:22:29,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:29,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:29,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:29,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:29,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:29,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:29,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:22:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:29,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:30,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:30,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:22:30,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:30,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:22:30,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:30,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:30,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:22:30,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:22:30,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:22:30,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:30,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:22:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:30,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:30,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:30,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:30,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:30,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:30,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:30,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:30,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:30,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:22:30,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:30,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:30,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-15 02:22:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:30,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:30,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:30,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:30,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:30,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:22:30,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:30,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:30,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:30,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:30,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:30,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:30,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:30,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [674040314] [2020-10-15 02:22:30,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:30,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:22:30,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013185922] [2020-10-15 02:22:30,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:22:30,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:30,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:22:30,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:22:30,104 INFO L87 Difference]: Start difference. First operand 49401 states and 69679 transitions. Second operand 9 states. [2020-10-15 02:22:30,288 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:22:33,572 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:22:34,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:34,904 INFO L93 Difference]: Finished difference Result 82960 states and 118896 transitions. [2020-10-15 02:22:34,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:22:34,905 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-10-15 02:22:34,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:35,177 INFO L225 Difference]: With dead ends: 82960 [2020-10-15 02:22:35,178 INFO L226 Difference]: Without dead ends: 52474 [2020-10-15 02:22:35,260 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:22:35,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52474 states. [2020-10-15 02:22:40,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52474 to 48300. [2020-10-15 02:22:40,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48300 states. [2020-10-15 02:22:40,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48300 states to 48300 states and 67737 transitions. [2020-10-15 02:22:40,649 INFO L78 Accepts]: Start accepts. Automaton has 48300 states and 67737 transitions. Word has length 93 [2020-10-15 02:22:40,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:40,650 INFO L479 AbstractCegarLoop]: Abstraction has 48300 states and 67737 transitions. [2020-10-15 02:22:40,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:22:40,650 INFO L276 IsEmpty]: Start isEmpty. Operand 48300 states and 67737 transitions. [2020-10-15 02:22:40,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 02:22:40,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:40,666 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] [2020-10-15 02:22:40,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 02:22:40,667 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:40,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:40,667 INFO L82 PathProgramCache]: Analyzing trace with hash -268389519, now seen corresponding path program 1 times [2020-10-15 02:22:40,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:40,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1140041360] [2020-10-15 02:22:40,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:40,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:40,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:40,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:40,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:41,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:43,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:45,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:45,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-15 02:22:45,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:22:45,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:22:45,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:45,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:45,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:22:45,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-15 02:22:45,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:22:45,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:45,854 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:45,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:45,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:45,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:45,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:45,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:45,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:45,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:45,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:45,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:45,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:45,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:45,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:45,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:45,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:45,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:45,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:45,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:22:45,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:45,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:22:45,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:45,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:45,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:45,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:45,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:22:45,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:45,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:22:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:45,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:45,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:45,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:45,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:45,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:22:45,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:45,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:45,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:45,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:45,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:45,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:45,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:22:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:45,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:45,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:45,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:45,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:45,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:22:45,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:45,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:45,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:45,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:45,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:22:45,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:45,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:22:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:45,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:46,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:46,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:22:46,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:46,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:22:46,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:46,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:46,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:22:46,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:22:46,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:22:46,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:46,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-15 02:22:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:46,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:46,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:46,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:46,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:46,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:22:46,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:46,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:46,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:46,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:46,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1140041360] [2020-10-15 02:22:46,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:46,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:22:46,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635564675] [2020-10-15 02:22:46,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:22:46,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:46,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:22:46,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:22:46,061 INFO L87 Difference]: Start difference. First operand 48300 states and 67737 transitions. Second operand 9 states. [2020-10-15 02:22:46,236 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:22:49,106 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:22:51,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:51,122 INFO L93 Difference]: Finished difference Result 74850 states and 106561 transitions. [2020-10-15 02:22:51,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:22:51,123 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-10-15 02:22:51,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:51,339 INFO L225 Difference]: With dead ends: 74850 [2020-10-15 02:22:51,339 INFO L226 Difference]: Without dead ends: 51604 [2020-10-15 02:22:51,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:22:51,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51604 states. [2020-10-15 02:22:54,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51604 to 48015. [2020-10-15 02:22:54,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48015 states. [2020-10-15 02:22:54,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48015 states to 48015 states and 66712 transitions. [2020-10-15 02:22:54,349 INFO L78 Accepts]: Start accepts. Automaton has 48015 states and 66712 transitions. Word has length 93 [2020-10-15 02:22:54,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:54,349 INFO L479 AbstractCegarLoop]: Abstraction has 48015 states and 66712 transitions. [2020-10-15 02:22:54,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:22:54,349 INFO L276 IsEmpty]: Start isEmpty. Operand 48015 states and 66712 transitions. [2020-10-15 02:22:54,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 02:22:54,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:54,366 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] [2020-10-15 02:22:54,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 02:22:54,366 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:54,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:54,366 INFO L82 PathProgramCache]: Analyzing trace with hash 326571629, now seen corresponding path program 1 times [2020-10-15 02:22:54,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:54,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [283922517] [2020-10-15 02:22:54,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:54,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:54,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:54,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:54,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:56,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:56,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:59,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:59,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-15 02:22:59,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:22:59,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 02:22:59,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:59,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:59,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:22:59,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-15 02:22:59,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:22:59,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:59,554 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:59,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:59,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:59,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:59,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:59,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:59,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:22:59,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:59,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:59,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:59,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:59,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:59,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:59,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:59,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:59,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:59,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:22:59,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:59,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:22:59,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:59,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:59,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:59,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:59,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 02:22:59,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:59,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:22:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:59,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:59,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:59,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:59,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:59,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:22:59,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:59,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:59,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:59,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:22:59,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:22:59,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:59,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:22:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:59,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:59,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:59,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:59,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:59,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:22:59,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:59,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:22:59,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:59,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:22:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:59,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:59,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:59,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:59,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:59,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:22:59,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:59,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:59,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:59,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:59,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:22:59,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:59,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:22:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:59,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:59,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:59,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:22:59,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:59,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:22:59,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:59,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:59,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:59,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:22:59,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:22:59,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:01,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:23:01,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [283922517] [2020-10-15 02:23:01,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:23:01,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:23:01,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854666984] [2020-10-15 02:23:01,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:23:01,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:23:01,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:23:01,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:23:01,190 INFO L87 Difference]: Start difference. First operand 48015 states and 66712 transitions. Second operand 10 states. [2020-10-15 02:23:01,382 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:23:01,808 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:23:03,704 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:23:03,866 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:23:06,153 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-15 02:23:09,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:23:09,893 INFO L93 Difference]: Finished difference Result 142066 states and 197932 transitions. [2020-10-15 02:23:09,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 02:23:09,894 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 93 [2020-10-15 02:23:09,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:23:10,285 INFO L225 Difference]: With dead ends: 142066 [2020-10-15 02:23:10,285 INFO L226 Difference]: Without dead ends: 101245 [2020-10-15 02:23:10,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 02:23:10,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101245 states. [2020-10-15 02:23:17,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101245 to 98329. [2020-10-15 02:23:17,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98329 states. [2020-10-15 02:23:17,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98329 states to 98329 states and 134873 transitions. [2020-10-15 02:23:17,871 INFO L78 Accepts]: Start accepts. Automaton has 98329 states and 134873 transitions. Word has length 93 [2020-10-15 02:23:17,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:23:17,872 INFO L479 AbstractCegarLoop]: Abstraction has 98329 states and 134873 transitions. [2020-10-15 02:23:17,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:23:17,872 INFO L276 IsEmpty]: Start isEmpty. Operand 98329 states and 134873 transitions. [2020-10-15 02:23:17,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-15 02:23:17,897 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:23:17,897 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] [2020-10-15 02:23:17,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 02:23:17,898 INFO L427 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:23:17,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:23:17,898 INFO L82 PathProgramCache]: Analyzing trace with hash 787309459, now seen corresponding path program 1 times [2020-10-15 02:23:17,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:23:17,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27852138] [2020-10-15 02:23:17,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:23:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:17,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:17,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:17,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:19,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:19,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:22,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:22,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-15 02:23:22,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:23:22,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-15 02:23:22,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:22,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:22,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:23:22,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-15 02:23:22,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:23:22,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:23,112 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:23:23,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:23:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:23,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:23,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:23,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:23:23,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:23,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:23:23,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:23,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:23,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:23,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:23,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:23,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:23,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:23:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:23,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:23,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:23,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:23:23,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:23,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:23:23,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:23,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:23,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:23:23,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:23,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:23:23,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:23,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:23:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:23,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:23,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:23,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:23,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:23,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:23:23,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:23,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:23,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:23,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:23,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:23:23,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:23,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:23:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:23,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:23,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:23,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:23:23,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:23,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:23:23,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:23,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:23,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:23:23,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:23:23,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:23:23,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:23,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:23:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:23,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:23,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:23,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:23:23,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:23,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:23:23,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:23,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:23,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:23,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:23,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:23:23,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:23,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:23:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:23,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:23,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:23,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:23:23,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:23,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:23:23,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:23,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:23,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:23,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:23:23,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:23:23,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:23,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:23:23,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [27852138] [2020-10-15 02:23:23,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:23:23,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:23:23,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294356333] [2020-10-15 02:23:23,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:23:23,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:23:23,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:23:23,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:23:23,385 INFO L87 Difference]: Start difference. First operand 98329 states and 134873 transitions. Second operand 10 states. [2020-10-15 02:23:23,560 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:23:23,936 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:23:28,231 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:23:28,401 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 150