/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_lcr.4_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:28:46,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:28:46,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:28:46,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:28:46,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:28:46,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:28:46,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:28:46,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:28:46,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:28:46,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:28:46,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:28:46,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:28:46,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:28:46,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:28:46,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:28:46,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:28:46,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:28:46,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:28:46,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:28:46,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:28:46,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:28:46,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:28:46,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:28:46,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:28:46,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:28:46,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:28:46,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:28:46,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:28:46,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:28:46,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:28:46,950 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:28:46,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:28:46,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:28:46,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:28:46,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:28:46,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:28:46,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:28:46,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:28:46,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:28:46,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:28:46,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:28:46,956 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 02:28:46,979 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:28:46,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:28:46,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:28:46,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:28:46,980 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:28:46,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:28:46,981 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:28:46,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:28:46,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:28:46,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:28:46,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:28:46,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:28:46,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:28:46,982 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:28:46,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:28:46,983 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:28:46,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:28:46,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:28:46,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:28:46,983 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:28:46,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:28:46,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:28:46,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:28:46,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:28:46,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:28:46,985 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:28:46,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:28:46,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:28:46,985 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:28:46,985 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 02:28:47,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:28:47,311 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:28:47,315 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:28:47,316 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:28:47,316 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:28:47,317 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c [2020-10-15 02:28:47,387 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/818cb7042/76b3fad48f4143409901785e395679fb/FLAGfa1eb792e [2020-10-15 02:28:47,841 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:28:47,842 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c [2020-10-15 02:28:47,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/818cb7042/76b3fad48f4143409901785e395679fb/FLAGfa1eb792e [2020-10-15 02:28:48,195 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/818cb7042/76b3fad48f4143409901785e395679fb [2020-10-15 02:28:48,203 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:28:48,205 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:28:48,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:28:48,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:28:48,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:28:48,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:28:48" (1/1) ... [2020-10-15 02:28:48,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33932146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:48, skipping insertion in model container [2020-10-15 02:28:48,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:28:48" (1/1) ... [2020-10-15 02:28:48,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:28:48,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:28:48,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:28:48,548 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:28:48,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:28:48,702 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:28:48,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:48 WrapperNode [2020-10-15 02:28:48,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:28:48,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:28:48,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:28:48,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:28:48,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:48" (1/1) ... [2020-10-15 02:28:48,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:48" (1/1) ... [2020-10-15 02:28:48,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:48" (1/1) ... [2020-10-15 02:28:48,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:48" (1/1) ... [2020-10-15 02:28:48,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:48" (1/1) ... [2020-10-15 02:28:48,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:48" (1/1) ... [2020-10-15 02:28:48,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:48" (1/1) ... [2020-10-15 02:28:48,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:28:48,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:28:48,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:28:48,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:28:48,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:48" (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 02:28:48,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:28:48,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:28:48,824 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:28:48,824 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:28:48,825 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:28:48,825 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:28:48,825 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-15 02:28:48,826 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:28:48,826 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:28:48,826 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:28:48,826 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:28:48,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:28:48,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:28:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:28:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 02:28:48,828 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:28:48,828 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:28:48,828 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:28:48,828 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:28:48,828 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:28:48,828 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:28:48,829 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:28:48,829 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:28:48,829 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 02:28:48,829 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:28:48,829 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:28:48,830 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:28:48,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:28:48,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:28:49,316 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:28:49,316 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:28:49,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:28:49 BoogieIcfgContainer [2020-10-15 02:28:49,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:28:49,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:28:49,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:28:49,327 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:28:49,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:28:48" (1/3) ... [2020-10-15 02:28:49,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4b4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:28:49, skipping insertion in model container [2020-10-15 02:28:49,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:28:48" (2/3) ... [2020-10-15 02:28:49,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4b4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:28:49, skipping insertion in model container [2020-10-15 02:28:49,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:28:49" (3/3) ... [2020-10-15 02:28:49,331 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c [2020-10-15 02:28:49,341 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:28:49,348 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:28:49,363 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:28:49,389 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:28:49,389 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:28:49,390 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:28:49,390 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:28:49,390 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:28:49,390 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:28:49,391 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:28:49,391 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:28:49,413 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states. [2020-10-15 02:28:49,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-15 02:28:49,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:28:49,424 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] [2020-10-15 02:28:49,425 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:28:49,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:28:49,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1430144723, now seen corresponding path program 1 times [2020-10-15 02:28:49,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:28:49,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148334299] [2020-10-15 02:28:49,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:28:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:49,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:50,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:50,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 02:28:50,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:50,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-10-15 02:28:50,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:50,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:50,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:50,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-15 02:28:50,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:50,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:28:50,230 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-15 02:28:50,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:28:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:50,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:50,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:50,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:28:50,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:50,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:28:50,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:50,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:50,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:50,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:50,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:50,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:50,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:28:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:50,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:50,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:50,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:50,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:50,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:28:50,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:50,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:50,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:50,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:50,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:50,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:50,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 02:28:50,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:50,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:50,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:50,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:28:50,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:50,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:28:50,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:50,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:50,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:50,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:28:50,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:50,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:50,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-15 02:28:50,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:50,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:50,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:50,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:50,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:50,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:28:50,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:50,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:50,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:50,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:50,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:50,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:50,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-15 02:28:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:50,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:50,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:50,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:50,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:50,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:28:50,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:50,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:50,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:50,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:50,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:50,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:50,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 02:28:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:50,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:50,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:50,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:50,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:50,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:28:50,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:50,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:50,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:50,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:50,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:50,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:50,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-15 02:28:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:50,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:50,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:50,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:50,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:50,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:28:50,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:50,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:50,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:50,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:50,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:28:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:50,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:50,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:50,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:50,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:50,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:28:50,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:50,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:50,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:50,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:28:50,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:50,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:50,455 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 02:28:50,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148334299] [2020-10-15 02:28:50,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:28:50,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 02:28:50,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960844928] [2020-10-15 02:28:50,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 02:28:50,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:28:50,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 02:28:50,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 02:28:50,481 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 7 states. [2020-10-15 02:28:51,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:28:51,141 INFO L93 Difference]: Finished difference Result 177 states and 257 transitions. [2020-10-15 02:28:51,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 02:28:51,143 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2020-10-15 02:28:51,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:28:51,154 INFO L225 Difference]: With dead ends: 177 [2020-10-15 02:28:51,155 INFO L226 Difference]: Without dead ends: 105 [2020-10-15 02:28:51,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:28:51,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-15 02:28:51,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-10-15 02:28:51,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-15 02:28:51,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 153 transitions. [2020-10-15 02:28:51,215 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 153 transitions. Word has length 60 [2020-10-15 02:28:51,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:28:51,216 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 153 transitions. [2020-10-15 02:28:51,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 02:28:51,216 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 153 transitions. [2020-10-15 02:28:51,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-15 02:28:51,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:28:51,219 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] [2020-10-15 02:28:51,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:28:51,220 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:28:51,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:28:51,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1971336235, now seen corresponding path program 1 times [2020-10-15 02:28:51,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:28:51,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1688015191] [2020-10-15 02:28:51,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:28:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:51,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:51,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:51,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 02:28:51,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:51,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 442 [2020-10-15 02:28:51,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:51,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:51,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:28:51,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 02:28:51,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:28:51,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:51,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:28:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:51,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:51,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:51,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:28:51,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:51,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:28:51,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:51,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:51,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:51,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:51,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:51,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:51,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:28:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:51,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:51,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:51,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:51,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:51,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:28:51,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:51,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:51,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:51,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:51,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:28:51,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 02:28:51,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 02:28:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:51,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:51,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:51,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:28:51,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:51,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:28:51,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:51,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:51,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:51,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:28:51,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:28:51,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:51,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-15 02:28:51,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:51,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:51,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:51,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:51,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:51,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:28:51,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:51,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:51,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:51,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:51,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:51,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:52,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-15 02:28:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:52,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:52,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:52,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:52,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:52,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:28:52,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:52,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:52,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:52,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:52,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:52,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:52,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 02:28:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:52,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:52,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:52,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:52,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:52,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:28:52,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:52,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:52,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:52,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:52,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:52,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:52,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-15 02:28:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:52,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:52,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:52,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:52,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:52,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:28:52,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:52,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:52,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:52,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:52,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:52,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:52,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:28:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:52,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:52,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:52,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:52,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:52,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:28:52,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:52,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:52,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:52,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:28:52,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:52,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:52,112 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 02:28:52,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1688015191] [2020-10-15 02:28:52,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:28:52,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:28:52,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736456873] [2020-10-15 02:28:52,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:28:52,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:28:52,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:28:52,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:28:52,115 INFO L87 Difference]: Start difference. First operand 105 states and 153 transitions. Second operand 13 states. [2020-10-15 02:28:52,407 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-15 02:28:53,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:28:53,565 INFO L93 Difference]: Finished difference Result 175 states and 249 transitions. [2020-10-15 02:28:53,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 02:28:53,565 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 60 [2020-10-15 02:28:53,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:28:53,569 INFO L225 Difference]: With dead ends: 175 [2020-10-15 02:28:53,569 INFO L226 Difference]: Without dead ends: 105 [2020-10-15 02:28:53,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-15 02:28:53,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-15 02:28:53,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-10-15 02:28:53,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-15 02:28:53,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 130 transitions. [2020-10-15 02:28:53,610 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 130 transitions. Word has length 60 [2020-10-15 02:28:53,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:28:53,610 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 130 transitions. [2020-10-15 02:28:53,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:28:53,611 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 130 transitions. [2020-10-15 02:28:53,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-15 02:28:53,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:28:53,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:28:53,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:28:53,614 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:28:53,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:28:53,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1898170202, now seen corresponding path program 1 times [2020-10-15 02:28:53,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:28:53,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477455154] [2020-10-15 02:28:53,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:28:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:53,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:53,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:53,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:53,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:54,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:58,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:58,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-15 02:28:58,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:28:58,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 02:28:58,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:58,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:58,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:28:58,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-15 02:28:58,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-15 02:28:58,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:28:58,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:28:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:58,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:58,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:58,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:28:58,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:58,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:28:58,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:58,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:58,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:58,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:28:58,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:28:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:58,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:58,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:58,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:28:58,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:58,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-15 02:28:58,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:58,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:58,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:28:58,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:58,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:28:58,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:58,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:28:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:58,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:58,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:58,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:28:58,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:58,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:28:58,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:58,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:58,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:58,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:58,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:28:58,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:59,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:28:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:59,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:59,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:59,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:59,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:59,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:28:59,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:59,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:59,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:59,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:28:59,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:28:59,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:59,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:28:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:59,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:59,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:59,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:59,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:59,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:28:59,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:59,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:59,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:59,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:28:59,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:28:59,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:59,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:28:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:59,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:59,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:59,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:59,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:59,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:28:59,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:59,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:59,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:59,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:28:59,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:28:59,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:59,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:28:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:59,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:59,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:59,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:59,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:59,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:28:59,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:59,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:59,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:59,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:28:59,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:28:59,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:59,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:28:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:59,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:59,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:59,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:59,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:59,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:28:59,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:59,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:59,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:59,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:28:59,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:28:59,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:59,323 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 02:28:59,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1477455154] [2020-10-15 02:28:59,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:28:59,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-15 02:28:59,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395131919] [2020-10-15 02:28:59,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 02:28:59,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:28:59,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 02:28:59,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-10-15 02:28:59,327 INFO L87 Difference]: Start difference. First operand 105 states and 130 transitions. Second operand 16 states. [2020-10-15 02:28:59,539 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-15 02:28:59,841 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-15 02:28:59,994 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-15 02:29:02,315 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-15 02:29:06,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:29:06,995 INFO L93 Difference]: Finished difference Result 829 states and 1162 transitions. [2020-10-15 02:29:06,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-10-15 02:29:06,996 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 82 [2020-10-15 02:29:06,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:29:07,018 INFO L225 Difference]: With dead ends: 829 [2020-10-15 02:29:07,019 INFO L226 Difference]: Without dead ends: 765 [2020-10-15 02:29:07,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2585 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1422, Invalid=6234, Unknown=0, NotChecked=0, Total=7656 [2020-10-15 02:29:07,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2020-10-15 02:29:07,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 560. [2020-10-15 02:29:07,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-15 02:29:07,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 774 transitions. [2020-10-15 02:29:07,119 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 774 transitions. Word has length 82 [2020-10-15 02:29:07,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:29:07,120 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 774 transitions. [2020-10-15 02:29:07,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 02:29:07,120 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 774 transitions. [2020-10-15 02:29:07,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-15 02:29:07,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:29:07,124 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 02:29:07,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:29:07,125 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:29:07,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:29:07,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1402057334, now seen corresponding path program 1 times [2020-10-15 02:29:07,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:29:07,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1013279691] [2020-10-15 02:29:07,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:29:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:07,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:07,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:07,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:07,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:07,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:11,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:12,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:12,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-15 02:29:12,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:29:12,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:29:12,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:12,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:12,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:29:12,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 02:29:12,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 02:29:12,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:12,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:29:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:12,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:12,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:12,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:29:12,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:12,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:29:12,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:12,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:12,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:12,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:12,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:12,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:12,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:29:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:12,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:12,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:12,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:29:12,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:12,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:29:12,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:12,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:12,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:12,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:12,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 02:29:12,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:12,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:29:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:12,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:12,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:12,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:29:12,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:12,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:29:12,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:12,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:12,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:12,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:12,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:29:12,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:12,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:29:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:12,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:12,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:12,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:12,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:12,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:29:12,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:12,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:12,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:29:12,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:12,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:29:12,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:12,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:29:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:12,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:12,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:12,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:12,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:12,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:29:12,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:12,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:12,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:12,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:12,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:12,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:12,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:29:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:12,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:12,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:12,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:12,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:12,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:29:12,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:12,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:12,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:12,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:12,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:12,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:12,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:29:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:12,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:12,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:12,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:12,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:12,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:29:12,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:12,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:12,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:12,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:12,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:12,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:12,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:29:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:12,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:12,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:12,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:12,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:29:12,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:29:12,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:29:12,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:12,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:12,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:12,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:29:12,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:29:12,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:12,544 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 02:29:12,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1013279691] [2020-10-15 02:29:12,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:29:12,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 02:29:12,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020109910] [2020-10-15 02:29:12,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 02:29:12,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:29:12,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 02:29:12,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-15 02:29:12,547 INFO L87 Difference]: Start difference. First operand 560 states and 774 transitions. Second operand 12 states. [2020-10-15 02:29:15,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:29:15,151 INFO L93 Difference]: Finished difference Result 2434 states and 3434 transitions. [2020-10-15 02:29:15,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-15 02:29:15,153 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 84 [2020-10-15 02:29:15,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:29:15,167 INFO L225 Difference]: With dead ends: 2434 [2020-10-15 02:29:15,167 INFO L226 Difference]: Without dead ends: 1915 [2020-10-15 02:29:15,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=231, Invalid=825, Unknown=0, NotChecked=0, Total=1056 [2020-10-15 02:29:15,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2020-10-15 02:29:15,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1909. [2020-10-15 02:29:15,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1909 states. [2020-10-15 02:29:15,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1909 states to 1909 states and 2649 transitions. [2020-10-15 02:29:15,321 INFO L78 Accepts]: Start accepts. Automaton has 1909 states and 2649 transitions. Word has length 84 [2020-10-15 02:29:15,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:29:15,322 INFO L479 AbstractCegarLoop]: Abstraction has 1909 states and 2649 transitions. [2020-10-15 02:29:15,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 02:29:15,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1909 states and 2649 transitions. [2020-10-15 02:29:15,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-15 02:29:15,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:29:15,326 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 02:29:15,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:29:15,326 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:29:15,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:29:15,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1605207506, now seen corresponding path program 1 times [2020-10-15 02:29:15,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:29:15,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833009106] [2020-10-15 02:29:15,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:29:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:15,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:15,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:15,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:15,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:16,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:20,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:20,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-15 02:29:20,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:29:20,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:29:20,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:20,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:20,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:29:20,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-15 02:29:20,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-15 02:29:20,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:20,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:29:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:20,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:20,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:20,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:29:20,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:20,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:29:20,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:20,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:20,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:20,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:20,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:29:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:20,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:20,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:20,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:29:20,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:20,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 02:29:20,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:20,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:20,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:29:20,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:20,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:29:20,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:20,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:29:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:20,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:20,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:20,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:29:20,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:20,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:29:20,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:20,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:20,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:20,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:20,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:29:20,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:20,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:29:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:20,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:20,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:20,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:20,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:20,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:29:20,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:20,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:20,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:20,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:20,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:29:20,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:20,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:29:20,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:20,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:20,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:20,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:20,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:20,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:29:20,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:20,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:20,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:20,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:20,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:29:20,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:20,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:29:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:20,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:20,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:20,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:20,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:20,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 02:29:20,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:20,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:20,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:20,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:20,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:29:20,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:20,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:29:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:20,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:20,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:20,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:20,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:20,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:29:20,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:20,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:20,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:20,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:20,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:29:20,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:20,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:29:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:20,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:20,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:20,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:29:20,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:20,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:29:20,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:20,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:20,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:20,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:29:20,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:29:20,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:20,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:29:20,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833009106] [2020-10-15 02:29:20,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:29:20,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-15 02:29:20,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537018194] [2020-10-15 02:29:20,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 02:29:20,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:29:20,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 02:29:20,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2020-10-15 02:29:20,953 INFO L87 Difference]: Start difference. First operand 1909 states and 2649 transitions. Second operand 16 states. [2020-10-15 02:29:21,102 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-15 02:29:26,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:29:26,264 INFO L93 Difference]: Finished difference Result 5659 states and 7996 transitions. [2020-10-15 02:29:26,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-10-15 02:29:26,265 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 84 [2020-10-15 02:29:26,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:29:26,288 INFO L225 Difference]: With dead ends: 5659 [2020-10-15 02:29:26,288 INFO L226 Difference]: Without dead ends: 3791 [2020-10-15 02:29:26,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1686 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1077, Invalid=4035, Unknown=0, NotChecked=0, Total=5112 [2020-10-15 02:29:26,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3791 states. [2020-10-15 02:29:26,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3791 to 3599. [2020-10-15 02:29:26,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3599 states. [2020-10-15 02:29:26,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3599 states to 3599 states and 5067 transitions. [2020-10-15 02:29:26,603 INFO L78 Accepts]: Start accepts. Automaton has 3599 states and 5067 transitions. Word has length 84 [2020-10-15 02:29:26,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:29:26,605 INFO L479 AbstractCegarLoop]: Abstraction has 3599 states and 5067 transitions. [2020-10-15 02:29:26,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 02:29:26,605 INFO L276 IsEmpty]: Start isEmpty. Operand 3599 states and 5067 transitions. [2020-10-15 02:29:26,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-15 02:29:26,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:29:26,610 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 02:29:26,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:29:26,610 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:29:26,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:29:26,611 INFO L82 PathProgramCache]: Analyzing trace with hash -540044956, now seen corresponding path program 1 times [2020-10-15 02:29:26,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:29:26,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618795384] [2020-10-15 02:29:26,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:29:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:26,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:26,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:26,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:26,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:26,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:27,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:31,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:31,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:31,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-15 02:29:31,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:29:31,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:29:31,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:31,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:31,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:29:31,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:29:31,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-15 02:29:31,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:31,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:29:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:31,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:31,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:31,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:29:31,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:31,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:29:31,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:31,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:31,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:31,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:31,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:29:31,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:31,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:29:31,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:31,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:31,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:31,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:29:31,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:31,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:29:31,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:31,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:31,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:29:31,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:31,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:29:31,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:31,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:29:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:31,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:31,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:31,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:29:31,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:31,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:29:31,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:31,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:29:31,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:31,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:29:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:31,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:31,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:31,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:31,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:31,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:29:31,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:31,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:31,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:31,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:31,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:31,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:31,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:29:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:31,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:31,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:31,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:31,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:31,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:29:31,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:31,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:31,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:31,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:31,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:31,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:31,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:29:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:31,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:31,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:31,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:31,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:31,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:29:31,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:31,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:31,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:31,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:31,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:31,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:31,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:29:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:31,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:31,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:31,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:29:31,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:31,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:29:31,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:31,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:31,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:29:31,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:31,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:29:31,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:32,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:29:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:32,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:32,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:32,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:29:32,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:32,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:29:32,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:32,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:32,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:32,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:29:32,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:32,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:32,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:29:32,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [618795384] [2020-10-15 02:29:32,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:29:32,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:29:32,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234243408] [2020-10-15 02:29:32,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:29:32,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:29:32,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:29:32,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:29:32,059 INFO L87 Difference]: Start difference. First operand 3599 states and 5067 transitions. Second operand 14 states. [2020-10-15 02:29:32,266 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2020-10-15 02:29:32,786 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2020-10-15 02:29:33,456 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2020-10-15 02:29:34,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:29:34,595 INFO L93 Difference]: Finished difference Result 7733 states and 10780 transitions. [2020-10-15 02:29:34,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 02:29:34,597 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 84 [2020-10-15 02:29:34,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:29:34,618 INFO L225 Difference]: With dead ends: 7733 [2020-10-15 02:29:34,618 INFO L226 Difference]: Without dead ends: 4175 [2020-10-15 02:29:34,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=275, Invalid=717, Unknown=0, NotChecked=0, Total=992 [2020-10-15 02:29:34,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4175 states. [2020-10-15 02:29:35,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4175 to 3829. [2020-10-15 02:29:35,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3829 states. [2020-10-15 02:29:35,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3829 states to 3829 states and 5378 transitions. [2020-10-15 02:29:35,035 INFO L78 Accepts]: Start accepts. Automaton has 3829 states and 5378 transitions. Word has length 84 [2020-10-15 02:29:35,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:29:35,036 INFO L479 AbstractCegarLoop]: Abstraction has 3829 states and 5378 transitions. [2020-10-15 02:29:35,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:29:35,036 INFO L276 IsEmpty]: Start isEmpty. Operand 3829 states and 5378 transitions. [2020-10-15 02:29:35,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-15 02:29:35,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:29:35,039 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 02:29:35,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:29:35,040 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:29:35,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:29:35,040 INFO L82 PathProgramCache]: Analyzing trace with hash -145992624, now seen corresponding path program 1 times [2020-10-15 02:29:35,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:29:35,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [522451229] [2020-10-15 02:29:35,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:29:35,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:35,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:35,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:35,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:35,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:35,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:36,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:36,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:40,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:40,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-15 02:29:40,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:29:40,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 02:29:40,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:40,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:40,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:29:40,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:29:40,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-15 02:29:40,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:40,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:29:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:40,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:40,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:40,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:29:40,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:40,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:29:40,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:40,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:40,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:40,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:40,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:29:40,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:40,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:29:40,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:40,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:40,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:40,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:29:40,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:40,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:29:40,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:40,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:40,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:29:40,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:40,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:29:40,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:40,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:29:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:40,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:40,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:40,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:29:40,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:40,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:29:40,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:40,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:40,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:40,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:40,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:29:40,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:40,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:29:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:40,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:40,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:40,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:40,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:40,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:29:40,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:40,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:40,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:40,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:40,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:40,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:40,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:29:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:40,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:40,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:40,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:40,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:40,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:29:40,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:40,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:40,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:40,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:40,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:40,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:40,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:29:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:40,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:40,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:40,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:29:40,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:40,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:29:40,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:40,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:40,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:29:40,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:40,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:29:40,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:40,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 02:29:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:40,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:40,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:40,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:40,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:40,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:29:40,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:40,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:40,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:40,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:29:40,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:40,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:40,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:29:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:40,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:40,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:40,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:29:40,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:40,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:29:40,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:40,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:40,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:40,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:29:40,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:40,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:40,416 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 02:29:40,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [522451229] [2020-10-15 02:29:40,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:29:40,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:29:40,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769655534] [2020-10-15 02:29:40,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:29:40,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:29:40,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:29:40,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:29:40,419 INFO L87 Difference]: Start difference. First operand 3829 states and 5378 transitions. Second operand 14 states. [2020-10-15 02:29:40,626 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2020-10-15 02:29:41,102 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2020-10-15 02:29:41,588 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2020-10-15 02:29:42,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:29:42,925 INFO L93 Difference]: Finished difference Result 8551 states and 11925 transitions. [2020-10-15 02:29:42,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 02:29:42,925 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 84 [2020-10-15 02:29:42,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:29:42,948 INFO L225 Difference]: With dead ends: 8551 [2020-10-15 02:29:42,948 INFO L226 Difference]: Without dead ends: 4858 [2020-10-15 02:29:42,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=275, Invalid=717, Unknown=0, NotChecked=0, Total=992 [2020-10-15 02:29:42,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4858 states. [2020-10-15 02:29:43,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4858 to 4138. [2020-10-15 02:29:43,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4138 states. [2020-10-15 02:29:43,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4138 states to 4138 states and 5811 transitions. [2020-10-15 02:29:43,281 INFO L78 Accepts]: Start accepts. Automaton has 4138 states and 5811 transitions. Word has length 84 [2020-10-15 02:29:43,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:29:43,282 INFO L479 AbstractCegarLoop]: Abstraction has 4138 states and 5811 transitions. [2020-10-15 02:29:43,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:29:43,282 INFO L276 IsEmpty]: Start isEmpty. Operand 4138 states and 5811 transitions. [2020-10-15 02:29:43,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-15 02:29:43,285 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:29:43,285 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 02:29:43,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:29:43,285 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:29:43,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:29:43,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1743718204, now seen corresponding path program 1 times [2020-10-15 02:29:43,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:29:43,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1809188178] [2020-10-15 02:29:43,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:29:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:43,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:43,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:43,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:43,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:43,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:43,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:46,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:48,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:48,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-15 02:29:48,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:29:48,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:29:48,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:48,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:48,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:29:48,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:29:48,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-15 02:29:48,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:48,475 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-15 02:29:48,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:29:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:48,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:48,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:48,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:29:48,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:48,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:29:48,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:48,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:48,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:48,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:48,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:29:48,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:48,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:29:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:48,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:48,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:48,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:29:48,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:48,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:29:48,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:48,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:48,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:29:48,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:48,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:29:48,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:48,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:29:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:48,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:48,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:48,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:29:48,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:48,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:29:48,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:48,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:48,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:48,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:48,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:29:48,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:48,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:29:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:48,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:48,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:48,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:48,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:48,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:29:48,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:48,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:48,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:48,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:48,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:48,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:48,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:29:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:48,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:48,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:48,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:29:48,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:48,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:29:48,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:48,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:48,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:29:48,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:48,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:29:48,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:48,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:29:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:48,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:48,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:48,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:48,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:48,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:29:48,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:48,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:48,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:48,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:29:48,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:48,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:48,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 02:29:48,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:48,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:48,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:48,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:48,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:48,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:29:48,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:48,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:48,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:48,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:29:48,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:48,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:48,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:29:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:48,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:48,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:48,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:29:48,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:48,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:29:48,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:48,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:48,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:48,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:29:48,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:48,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:48,749 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 02:29:48,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1809188178] [2020-10-15 02:29:48,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:29:48,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:29:48,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432366670] [2020-10-15 02:29:48,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:29:48,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:29:48,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:29:48,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:29:48,756 INFO L87 Difference]: Start difference. First operand 4138 states and 5811 transitions. Second operand 14 states. [2020-10-15 02:29:48,959 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2020-10-15 02:29:49,466 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2020-10-15 02:29:49,787 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2020-10-15 02:29:51,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:29:51,281 INFO L93 Difference]: Finished difference Result 10238 states and 14370 transitions. [2020-10-15 02:29:51,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 02:29:51,281 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 84 [2020-10-15 02:29:51,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:29:51,310 INFO L225 Difference]: With dead ends: 10238 [2020-10-15 02:29:51,310 INFO L226 Difference]: Without dead ends: 6176 [2020-10-15 02:29:51,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=275, Invalid=717, Unknown=0, NotChecked=0, Total=992 [2020-10-15 02:29:51,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6176 states. [2020-10-15 02:29:51,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6176 to 4405. [2020-10-15 02:29:51,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4405 states. [2020-10-15 02:29:51,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4405 states to 4405 states and 6185 transitions. [2020-10-15 02:29:51,646 INFO L78 Accepts]: Start accepts. Automaton has 4405 states and 6185 transitions. Word has length 84 [2020-10-15 02:29:51,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:29:51,646 INFO L479 AbstractCegarLoop]: Abstraction has 4405 states and 6185 transitions. [2020-10-15 02:29:51,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:29:51,646 INFO L276 IsEmpty]: Start isEmpty. Operand 4405 states and 6185 transitions. [2020-10-15 02:29:51,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-15 02:29:51,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:29:51,647 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 02:29:51,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:29:51,648 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:29:51,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:29:51,648 INFO L82 PathProgramCache]: Analyzing trace with hash -109206032, now seen corresponding path program 1 times [2020-10-15 02:29:51,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:29:51,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1989549767] [2020-10-15 02:29:51,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:29:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:51,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:51,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:51,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:51,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:51,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:52,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:55,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:56,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:56,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-15 02:29:56,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:29:56,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 02:29:56,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:56,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:56,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:29:56,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-15 02:29:56,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-15 02:29:56,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:56,858 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-15 02:29:56,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:29:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:56,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:56,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:56,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:29:56,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:56,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:29:56,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:56,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:56,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:56,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:56,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:56,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:56,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:29:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:56,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:56,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:56,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:29:56,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:56,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:29:56,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:56,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:56,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:56,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:56,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:29:56,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 02:29:56,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:29:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:56,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:56,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:56,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:29:56,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:56,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:29:56,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:56,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:56,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:56,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:56,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:29:56,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:56,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:29:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:56,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:56,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:56,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:29:56,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:56,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:29:56,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:56,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:56,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:29:56,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:56,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:29:56,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:56,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:29:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:56,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:56,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:56,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:56,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:56,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:29:56,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:56,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:56,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:56,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:56,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:29:56,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:57,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:29:57,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:57,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:57,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:57,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:57,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:57,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:29:57,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:57,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:57,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:57,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:57,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:29:57,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:57,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 02:29:57,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:57,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:57,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:57,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:57,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:57,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:29:57,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:57,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:57,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:57,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:57,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:29:57,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:57,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:29:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:57,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:57,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:57,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:29:57,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:57,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:29:57,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:57,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:57,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:57,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:29:57,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:29:57,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:57,133 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 02:29:57,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1989549767] [2020-10-15 02:29:57,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:29:57,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-15 02:29:57,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621220934] [2020-10-15 02:29:57,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 02:29:57,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:29:57,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 02:29:57,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2020-10-15 02:29:57,136 INFO L87 Difference]: Start difference. First operand 4405 states and 6185 transitions. Second operand 16 states. [2020-10-15 02:30:01,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:30:01,674 INFO L93 Difference]: Finished difference Result 9685 states and 13699 transitions. [2020-10-15 02:30:01,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-15 02:30:01,677 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 84 [2020-10-15 02:30:01,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:30:01,706 INFO L225 Difference]: With dead ends: 9685 [2020-10-15 02:30:01,706 INFO L226 Difference]: Without dead ends: 6331 [2020-10-15 02:30:01,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1225 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=870, Invalid=3162, Unknown=0, NotChecked=0, Total=4032 [2020-10-15 02:30:01,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6331 states. [2020-10-15 02:30:02,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6331 to 5898. [2020-10-15 02:30:02,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5898 states. [2020-10-15 02:30:02,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5898 states to 5898 states and 8274 transitions. [2020-10-15 02:30:02,028 INFO L78 Accepts]: Start accepts. Automaton has 5898 states and 8274 transitions. Word has length 84 [2020-10-15 02:30:02,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:30:02,028 INFO L479 AbstractCegarLoop]: Abstraction has 5898 states and 8274 transitions. [2020-10-15 02:30:02,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 02:30:02,028 INFO L276 IsEmpty]: Start isEmpty. Operand 5898 states and 8274 transitions. [2020-10-15 02:30:02,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-15 02:30:02,029 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:30:02,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:30:02,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:30:02,029 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:30:02,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:30:02,029 INFO L82 PathProgramCache]: Analyzing trace with hash -223391783, now seen corresponding path program 1 times [2020-10-15 02:30:02,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:30:02,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1521032711] [2020-10-15 02:30:02,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:30:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:02,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:02,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:02,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:02,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:02,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:07,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:07,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-15 02:30:07,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:30:07,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 02:30:07,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:07,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:07,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:07,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-15 02:30:07,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 02:30:07,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:07,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:30:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:07,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:07,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:07,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:30:07,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:07,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:30:07,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:07,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:07,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:07,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:07,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:07,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:07,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:30:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:07,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:07,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:07,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:30:07,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:07,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:30:07,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:07,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:07,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:07,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:07,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 02:30:07,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:07,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:30:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:07,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:07,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:07,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:30:07,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:07,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:30:07,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:07,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:07,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:07,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:07,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:30:07,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:07,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:30:07,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:07,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:07,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:07,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:07,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:07,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:30:07,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:07,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:07,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:07,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:07,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:07,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:07,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:30:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:07,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:07,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:07,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:07,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:07,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:30:07,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:07,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:07,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:07,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:07,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:07,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:07,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:30:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:07,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:07,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:07,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:07,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:07,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:07,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:07,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:07,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:07,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:07,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:07,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:07,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:30:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:07,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:07,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:07,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:07,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:07,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:30:07,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:07,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:07,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:07,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:07,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:07,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:07,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:30:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:07,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:07,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:07,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:30:07,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:07,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:07,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:07,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:07,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:07,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:30:07,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:07,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:07,348 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 02:30:07,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1521032711] [2020-10-15 02:30:07,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:30:07,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:30:07,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705937684] [2020-10-15 02:30:07,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:30:07,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:30:07,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:30:07,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:30:07,350 INFO L87 Difference]: Start difference. First operand 5898 states and 8274 transitions. Second operand 10 states. [2020-10-15 02:30:09,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:30:09,053 INFO L93 Difference]: Finished difference Result 16687 states and 23574 transitions. [2020-10-15 02:30:09,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:30:09,053 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-10-15 02:30:09,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:30:09,130 INFO L225 Difference]: With dead ends: 16687 [2020-10-15 02:30:09,130 INFO L226 Difference]: Without dead ends: 10916 [2020-10-15 02:30:09,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:30:09,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10916 states. [2020-10-15 02:30:09,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10916 to 10070. [2020-10-15 02:30:09,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10070 states. [2020-10-15 02:30:09,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10070 states to 10070 states and 13966 transitions. [2020-10-15 02:30:09,902 INFO L78 Accepts]: Start accepts. Automaton has 10070 states and 13966 transitions. Word has length 85 [2020-10-15 02:30:09,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:30:09,902 INFO L479 AbstractCegarLoop]: Abstraction has 10070 states and 13966 transitions. [2020-10-15 02:30:09,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:30:09,902 INFO L276 IsEmpty]: Start isEmpty. Operand 10070 states and 13966 transitions. [2020-10-15 02:30:09,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-15 02:30:09,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:30:09,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:30:09,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:30:09,904 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:30:09,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:30:09,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1809994077, now seen corresponding path program 1 times [2020-10-15 02:30:09,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:30:09,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [511954670] [2020-10-15 02:30:09,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:30:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:09,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:09,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:09,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:09,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:14,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:14,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-15 02:30:14,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:30:14,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 02:30:14,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:14,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:14,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:14,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-15 02:30:14,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-15 02:30:14,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:15,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:30:15,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:15,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:15,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:15,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:30:15,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:15,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:15,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:15,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:15,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:15,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:15,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:15,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:15,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:30:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:15,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:15,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:15,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:30:15,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:15,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:30:15,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:15,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:15,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:15,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:15,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:15,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:15,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:30:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:15,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:15,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:15,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:30:15,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:15,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:30:15,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:15,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:15,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:15,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:15,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:30:15,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:15,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:30:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:15,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:15,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:15,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:15,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:15,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:30:15,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:15,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:15,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:15,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:15,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:15,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:15,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:30:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:15,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:15,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:15,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:15,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:15,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:30:15,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:15,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:15,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:15,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:15,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:15,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:15,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:30:15,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:15,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:15,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:15,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:15,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:15,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:15,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:15,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:15,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:15,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:15,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:15,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:15,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:30:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:15,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:15,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:15,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:15,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:15,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:15,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:15,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:15,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:15,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:15,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:15,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:15,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:30:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:15,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:15,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:15,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:30:15,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:15,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:30:15,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:15,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:30:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:15,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:15,159 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 02:30:15,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [511954670] [2020-10-15 02:30:15,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:30:15,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:30:15,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031258714] [2020-10-15 02:30:15,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:30:15,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:30:15,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:30:15,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:30:15,160 INFO L87 Difference]: Start difference. First operand 10070 states and 13966 transitions. Second operand 10 states. [2020-10-15 02:30:17,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:30:17,172 INFO L93 Difference]: Finished difference Result 28280 states and 39391 transitions. [2020-10-15 02:30:17,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:30:17,173 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-10-15 02:30:17,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:30:17,226 INFO L225 Difference]: With dead ends: 28280 [2020-10-15 02:30:17,226 INFO L226 Difference]: Without dead ends: 18283 [2020-10-15 02:30:17,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:30:17,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18283 states. [2020-10-15 02:30:18,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18283 to 18281. [2020-10-15 02:30:18,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18281 states. [2020-10-15 02:30:18,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18281 states to 18281 states and 25025 transitions. [2020-10-15 02:30:18,301 INFO L78 Accepts]: Start accepts. Automaton has 18281 states and 25025 transitions. Word has length 85 [2020-10-15 02:30:18,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:30:18,301 INFO L479 AbstractCegarLoop]: Abstraction has 18281 states and 25025 transitions. [2020-10-15 02:30:18,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:30:18,301 INFO L276 IsEmpty]: Start isEmpty. Operand 18281 states and 25025 transitions. [2020-10-15 02:30:18,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-15 02:30:18,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:30:18,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:30:18,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:30:18,303 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:30:18,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:30:18,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1791925267, now seen corresponding path program 1 times [2020-10-15 02:30:18,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:30:18,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1402848975] [2020-10-15 02:30:18,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:30:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:18,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:18,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:18,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:20,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:20,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-15 02:30:20,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:30:20,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1907 [2020-10-15 02:30:20,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:20,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:20,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:20,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 02:30:20,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 02:30:20,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:20,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:30:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:20,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:20,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:20,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:30:20,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:20,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:20,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:20,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:20,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:20,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:20,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:20,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:20,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:30:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:20,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:20,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:20,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:30:20,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:20,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:30:20,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:20,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:20,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:20,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:20,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:30:20,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:20,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:30:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:20,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:20,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:20,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:30:20,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:20,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:30:20,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:20,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:20,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:20,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:20,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:30:20,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:20,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:30:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:20,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:20,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:20,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:20,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:20,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:20,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:20,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:20,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:20,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:20,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:20,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:20,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:30:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:20,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:20,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:20,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:20,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:20,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:30:20,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:20,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:20,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:20,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:20,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:20,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:20,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:30:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:20,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:20,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:20,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:20,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:20,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:30:20,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:20,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:20,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:20,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:20,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:20,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:20,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:30:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:20,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:20,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:20,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:20,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:20,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:20,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:20,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:20,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:20,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:20,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:20,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:20,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:30:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:20,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:20,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:20,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:30:20,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:20,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:30:20,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:20,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:20,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:20,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:30:20,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:20,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:20,471 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 02:30:20,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1402848975] [2020-10-15 02:30:20,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:30:20,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:30:20,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913408736] [2020-10-15 02:30:20,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:30:20,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:30:20,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:30:20,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:30:20,475 INFO L87 Difference]: Start difference. First operand 18281 states and 25025 transitions. Second operand 10 states. [2020-10-15 02:30:23,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:30:23,112 INFO L93 Difference]: Finished difference Result 51244 states and 70501 transitions. [2020-10-15 02:30:23,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:30:23,113 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-10-15 02:30:23,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:30:23,235 INFO L225 Difference]: With dead ends: 51244 [2020-10-15 02:30:23,235 INFO L226 Difference]: Without dead ends: 33057 [2020-10-15 02:30:23,283 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:30:23,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33057 states. [2020-10-15 02:30:26,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33057 to 33055. [2020-10-15 02:30:26,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33055 states. [2020-10-15 02:30:26,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33055 states to 33055 states and 44608 transitions. [2020-10-15 02:30:26,303 INFO L78 Accepts]: Start accepts. Automaton has 33055 states and 44608 transitions. Word has length 85 [2020-10-15 02:30:26,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:30:26,304 INFO L479 AbstractCegarLoop]: Abstraction has 33055 states and 44608 transitions. [2020-10-15 02:30:26,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:30:26,304 INFO L276 IsEmpty]: Start isEmpty. Operand 33055 states and 44608 transitions. [2020-10-15 02:30:26,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-15 02:30:26,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:30:26,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:30:26,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 02:30:26,305 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:30:26,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:30:26,306 INFO L82 PathProgramCache]: Analyzing trace with hash -975350751, now seen corresponding path program 1 times [2020-10-15 02:30:26,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:30:26,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [163324531] [2020-10-15 02:30:26,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:30:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:26,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:26,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:26,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:30,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:30,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-15 02:30:30,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:30:30,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4382 [2020-10-15 02:30:30,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:30,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:30,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:30:30,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:30:30,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:30:30,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:30,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:30:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:30,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:30,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:30,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:30:30,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:30,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:30:30,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:30,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:30,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:30:30,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:30,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:30:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:30,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:30,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:30,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:30:30,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:30,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:30:30,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:30,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:30,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:30,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:30,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:30:30,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:30,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:30:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:30,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:30,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:30,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:30:30,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:30,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:30:30,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:30,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:30,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:30,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:30,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:30:30,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:30,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:30:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:30,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:30,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:30,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:30,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:30,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:30,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:30,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:30,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:30,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:30,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:30,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:30,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:30:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:30,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:30,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:30,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:30,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:30,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:30:30,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:30,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:30,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:30,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:30,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:30,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:30,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:30:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:30,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:30,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:30,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:30,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:30,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:30:30,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:30,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:30,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:30,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:30,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:30,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:30,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:30:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:30,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:30,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:30,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:30,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:30,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:30,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:30,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:30,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:30,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:30:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:30,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:30,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:30,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:30:30,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:30,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:30:30,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:30,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:30,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:30,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:30:30,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:30,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:30,999 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 02:30:31,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [163324531] [2020-10-15 02:30:31,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:30:31,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:30:31,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359221458] [2020-10-15 02:30:31,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:30:31,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:30:31,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:30:31,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:30:31,001 INFO L87 Difference]: Start difference. First operand 33055 states and 44608 transitions. Second operand 14 states. [2020-10-15 02:30:31,218 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-15 02:30:31,748 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-10-15 02:30:34,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:30:34,686 INFO L93 Difference]: Finished difference Result 66991 states and 90734 transitions. [2020-10-15 02:30:34,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:30:34,687 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 85 [2020-10-15 02:30:34,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:30:34,803 INFO L225 Difference]: With dead ends: 66991 [2020-10-15 02:30:34,803 INFO L226 Difference]: Without dead ends: 34027 [2020-10-15 02:30:34,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=197, Invalid=505, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:30:34,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34027 states. [2020-10-15 02:30:37,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34027 to 33055. [2020-10-15 02:30:37,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33055 states. [2020-10-15 02:30:37,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33055 states to 33055 states and 44281 transitions. [2020-10-15 02:30:37,257 INFO L78 Accepts]: Start accepts. Automaton has 33055 states and 44281 transitions. Word has length 85 [2020-10-15 02:30:37,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:30:37,257 INFO L479 AbstractCegarLoop]: Abstraction has 33055 states and 44281 transitions. [2020-10-15 02:30:37,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:30:37,257 INFO L276 IsEmpty]: Start isEmpty. Operand 33055 states and 44281 transitions. [2020-10-15 02:30:37,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-15 02:30:37,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:30:37,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:30:37,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 02:30:37,259 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:30:37,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:30:37,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1037390365, now seen corresponding path program 1 times [2020-10-15 02:30:37,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:30:37,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1014526416] [2020-10-15 02:30:37,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:30:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:37,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:37,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:37,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:37,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-15 02:30:37,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:30:37,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 533 [2020-10-15 02:30:37,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:37,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:37,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:37,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-15 02:30:37,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:30:37,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:37,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:30:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:37,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:37,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:37,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:30:37,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:37,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:30:37,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:37,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:37,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:37,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:37,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:37,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:37,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:30:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:37,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:37,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:37,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:30:37,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:37,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:30:37,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:37,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:37,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:37,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:37,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:30:37,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:37,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:30:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:37,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:37,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:37,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:30:37,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:37,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:37,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:37,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:37,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:37,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:37,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:30:37,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:37,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:30:37,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:37,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:37,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:38,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:38,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:38,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:30:38,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:38,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:38,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:38,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:38,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:38,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:38,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:30:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:38,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:38,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:38,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:38,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:38,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:38,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:38,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:38,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:38,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:38,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:38,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:38,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:30:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:38,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:38,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:38,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:38,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:38,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:38,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:38,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:38,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:38,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:38,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:38,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:38,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:30:38,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:38,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:38,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:38,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:38,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:38,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:38,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:38,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:38,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:38,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:38,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:38,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:38,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:30:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:38,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:38,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:38,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:30:38,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:38,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:38,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:38,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:38,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:38,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:30:38,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:38,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:38,125 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 02:30:38,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1014526416] [2020-10-15 02:30:38,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:30:38,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:30:38,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110364674] [2020-10-15 02:30:38,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:30:38,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:30:38,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:30:38,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:30:38,127 INFO L87 Difference]: Start difference. First operand 33055 states and 44281 transitions. Second operand 10 states. [2020-10-15 02:30:42,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:30:42,827 INFO L93 Difference]: Finished difference Result 77829 states and 105097 transitions. [2020-10-15 02:30:42,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:30:42,827 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-10-15 02:30:42,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:30:42,918 INFO L225 Difference]: With dead ends: 77829 [2020-10-15 02:30:42,918 INFO L226 Difference]: Without dead ends: 49962 [2020-10-15 02:30:42,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:30:42,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49962 states. [2020-10-15 02:30:45,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49962 to 49960. [2020-10-15 02:30:45,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49960 states. [2020-10-15 02:30:46,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49960 states to 49960 states and 66182 transitions. [2020-10-15 02:30:46,047 INFO L78 Accepts]: Start accepts. Automaton has 49960 states and 66182 transitions. Word has length 85 [2020-10-15 02:30:46,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:30:46,047 INFO L479 AbstractCegarLoop]: Abstraction has 49960 states and 66182 transitions. [2020-10-15 02:30:46,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:30:46,047 INFO L276 IsEmpty]: Start isEmpty. Operand 49960 states and 66182 transitions. [2020-10-15 02:30:46,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-15 02:30:46,048 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:30:46,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:30:46,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 02:30:46,049 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:30:46,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:30:46,049 INFO L82 PathProgramCache]: Analyzing trace with hash 831017305, now seen corresponding path program 1 times [2020-10-15 02:30:46,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:30:46,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [481372299] [2020-10-15 02:30:46,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:30:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:46,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:46,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:46,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-15 02:30:46,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:46,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-15 02:30:46,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:46,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:46,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:30:46,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-15 02:30:46,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:30:46,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:46,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:30:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:46,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:46,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:46,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:30:46,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:46,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:30:46,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:46,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:46,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:46,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:46,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:46,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:46,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:30:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:46,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:46,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:46,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:30:46,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:46,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:46,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:46,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:46,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:46,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:46,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:46,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:46,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:30:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:46,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:46,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:46,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:30:46,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:46,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:30:46,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:46,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:46,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:46,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:46,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:46,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:46,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:30:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:46,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:46,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:46,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:46,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:46,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:46,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:46,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:46,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:46,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:46,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:46,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:46,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:30:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:46,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:46,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:46,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:46,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:46,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:46,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:46,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:46,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:46,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:46,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:46,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:46,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:30:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:46,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:46,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:46,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:46,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:46,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:46,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:46,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:46,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:46,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:46,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:46,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:46,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:30:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:46,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:46,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:46,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:46,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:46,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:46,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:46,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:46,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:46,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:30:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:46,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:46,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:46,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:30:46,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:46,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:46,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:46,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:46,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:46,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:46,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:30:46,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:46,510 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 02:30:46,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [481372299] [2020-10-15 02:30:46,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:30:46,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:30:46,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631154009] [2020-10-15 02:30:46,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:30:46,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:30:46,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:30:46,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:30:46,511 INFO L87 Difference]: Start difference. First operand 49960 states and 66182 transitions. Second operand 13 states. [2020-10-15 02:30:50,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:30:50,746 INFO L93 Difference]: Finished difference Result 53689 states and 73026 transitions. [2020-10-15 02:30:50,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:30:50,746 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 85 [2020-10-15 02:30:50,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:30:50,878 INFO L225 Difference]: With dead ends: 53689 [2020-10-15 02:30:50,878 INFO L226 Difference]: Without dead ends: 53687 [2020-10-15 02:30:50,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2020-10-15 02:30:50,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53687 states. [2020-10-15 02:30:56,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53687 to 50968. [2020-10-15 02:30:56,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50968 states. [2020-10-15 02:30:56,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50968 states to 50968 states and 67014 transitions. [2020-10-15 02:30:56,320 INFO L78 Accepts]: Start accepts. Automaton has 50968 states and 67014 transitions. Word has length 85 [2020-10-15 02:30:56,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:30:56,321 INFO L479 AbstractCegarLoop]: Abstraction has 50968 states and 67014 transitions. [2020-10-15 02:30:56,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:30:56,321 INFO L276 IsEmpty]: Start isEmpty. Operand 50968 states and 67014 transitions. [2020-10-15 02:30:56,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-15 02:30:56,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:30:56,326 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:30:56,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 02:30:56,327 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:30:56,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:30:56,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1547656608, now seen corresponding path program 1 times [2020-10-15 02:30:56,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:30:56,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [227149004] [2020-10-15 02:30:56,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:30:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:56,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:56,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:56,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:56,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:00,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:01,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:01,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:01,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-15 02:31:01,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:31:01,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 02:31:01,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:01,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:01,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:31:01,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:31:01,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-15 02:31:01,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:01,552 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-15 02:31:01,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:31:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:01,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:01,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:01,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:31:01,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:01,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:31:01,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:01,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:01,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:01,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:01,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:01,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:01,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:31:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:01,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:01,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:01,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:31:01,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:01,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:31:01,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:01,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:01,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:01,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:01,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:31:01,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:01,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:31:01,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:01,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:01,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:01,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:31:01,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:01,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:31:01,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:01,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:01,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:01,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:01,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:31:01,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:01,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:31:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:01,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:01,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:01,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:01,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:01,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 02:31:01,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:01,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:01,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:31:01,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:01,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:01,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:01,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:31:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:01,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:01,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:01,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:01,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:01,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:31:01,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:01,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:01,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:01,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:01,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:31:01,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:01,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:31:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:01,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:01,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:01,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:01,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:01,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:31:01,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:01,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:01,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:01,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:01,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:31:01,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:01,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:31:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:01,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:01,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:01,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:01,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:01,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:31:01,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:01,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:01,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:01,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:01,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:31:01,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:01,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:31:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:01,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:01,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:01,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:31:01,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:01,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:31:01,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:01,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:01,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:01,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:01,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:31:01,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:01,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:31:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:01,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:01,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:01,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:31:01,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:01,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:31:01,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:01,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:01,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:01,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:01,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:31:01,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:31:01,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-15 02:31:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:01,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:01,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:01,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:01,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:01,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:31:01,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:01,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:01,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:01,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:01,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:31:01,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:01,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-15 02:31:01,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:01,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:01,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:01,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:01,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:01,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:31:01,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:01,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:01,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:31:01,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:01,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:01,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:01,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-15 02:31:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:01,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:01,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:01,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:01,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:01,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:31:01,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:01,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:01,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:01,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:31:01,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:01,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:01,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-15 02:31:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:01,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:01,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:01,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:31:01,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:01,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:31:01,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:01,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:01,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:01,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:31:01,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:01,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:01,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-15 02:31:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:01,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:01,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:01,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:31:01,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:01,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:31:01,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:01,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:01,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:01,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:31:01,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:01,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:01,991 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 02:31:01,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [227149004] [2020-10-15 02:31:01,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:31:01,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-15 02:31:01,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498839640] [2020-10-15 02:31:01,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 02:31:01,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:31:01,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 02:31:01,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-15 02:31:01,995 INFO L87 Difference]: Start difference. First operand 50968 states and 67014 transitions. Second operand 16 states. [2020-10-15 02:31:02,179 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-15 02:31:16,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:31:16,390 INFO L93 Difference]: Finished difference Result 210762 states and 279857 transitions. [2020-10-15 02:31:16,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-15 02:31:16,391 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 129 [2020-10-15 02:31:16,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:31:16,892 INFO L225 Difference]: With dead ends: 210762 [2020-10-15 02:31:16,892 INFO L226 Difference]: Without dead ends: 159864 [2020-10-15 02:31:17,012 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 982 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=640, Invalid=2900, Unknown=0, NotChecked=0, Total=3540 [2020-10-15 02:31:17,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159864 states. [2020-10-15 02:31:30,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159864 to 140832. [2020-10-15 02:31:30,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140832 states. [2020-10-15 02:31:30,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140832 states to 140832 states and 186652 transitions. [2020-10-15 02:31:30,731 INFO L78 Accepts]: Start accepts. Automaton has 140832 states and 186652 transitions. Word has length 129 [2020-10-15 02:31:30,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:31:30,732 INFO L479 AbstractCegarLoop]: Abstraction has 140832 states and 186652 transitions. [2020-10-15 02:31:30,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 02:31:30,732 INFO L276 IsEmpty]: Start isEmpty. Operand 140832 states and 186652 transitions. [2020-10-15 02:31:30,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-15 02:31:30,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:31:30,741 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:31:30,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 02:31:30,741 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:31:30,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:31:30,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1543637440, now seen corresponding path program 1 times [2020-10-15 02:31:30,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:31:30,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85079137] [2020-10-15 02:31:30,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:31:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:30,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:30,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:30,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:31,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:35,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:35,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-15 02:31:35,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:31:35,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:31:35,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:35,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:35,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-15 02:31:35,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-15 02:31:35,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-15 02:31:35,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:35,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:31:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:35,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:35,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:35,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:31:35,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:35,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:31:35,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:35,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:35,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:31:35,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:35,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:31:35,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:35,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:31:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:35,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:35,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:35,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 02:31:35,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:35,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:31:35,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:35,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:35,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:35,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:35,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:31:35,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:35,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:31:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:35,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:35,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:35,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:31:35,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:35,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:31:35,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:35,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:35,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:35,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:35,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:31:35,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:35,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:31:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:35,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:35,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:35,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:35,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:35,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:31:35,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:35,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:31:35,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:35,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:31:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:35,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:35,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:35,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:35,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:35,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:31:35,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:35,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:35,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:35,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:35,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:35,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:35,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:31:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:35,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:35,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:35,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:35,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:35,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:31:35,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:35,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:35,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:35,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:35,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:31:35,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:36,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:31:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:36,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:36,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:36,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:36,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:36,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:31:36,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:36,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:36,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:36,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:36,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:31:36,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:36,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:31:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:36,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:36,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:36,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:31:36,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:36,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:31:36,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:36,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:36,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:31:36,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:36,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:31:36,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:36,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:31:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:36,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:36,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:36,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:31:36,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:36,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:31:36,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:36,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:36,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:36,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:36,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:31:36,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:36,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-15 02:31:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:36,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:36,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:36,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:36,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:36,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:31:36,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:36,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:36,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:36,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:36,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:36,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:36,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-15 02:31:36,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:36,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:36,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:36,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:31:36,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:36,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:31:36,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:36,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:36,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:31:36,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:31:36,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:31:36,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:36,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-15 02:31:36,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:36,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:36,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:36,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:36,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:36,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:31:36,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:36,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:36,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:36,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:36,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:36,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:36,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-15 02:31:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:36,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:36,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:36,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:31:36,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:36,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:31:36,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:36,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:36,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:31:36,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:31:36,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:31:36,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:36,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-15 02:31:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:31:36,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:31:36,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:31:36,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:31:36,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:31:36,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:31:36,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:31:36,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:31:36,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:31:36,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:31:36,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:31:36,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:31:36,173 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 02:31:36,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85079137] [2020-10-15 02:31:36,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:31:36,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-15 02:31:36,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183516852] [2020-10-15 02:31:36,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-15 02:31:36,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:31:36,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-15 02:31:36,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2020-10-15 02:31:36,175 INFO L87 Difference]: Start difference. First operand 140832 states and 186652 transitions. Second operand 17 states. [2020-10-15 02:31:36,392 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-15 02:31:38,049 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-15 02:31:40,920 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-15 02:31:54,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:31:54,638 INFO L93 Difference]: Finished difference Result 325588 states and 437684 transitions. [2020-10-15 02:31:54,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-15 02:31:54,639 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 129 [2020-10-15 02:31:54,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:31:55,183 INFO L225 Difference]: With dead ends: 325588 [2020-10-15 02:31:55,185 INFO L226 Difference]: Without dead ends: 193654 [2020-10-15 02:31:55,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=661, Invalid=2095, Unknown=0, NotChecked=0, Total=2756 [2020-10-15 02:31:55,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193654 states. [2020-10-15 02:32:15,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193654 to 188798. [2020-10-15 02:32:15,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188798 states. [2020-10-15 02:32:15,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188798 states to 188798 states and 250561 transitions. [2020-10-15 02:32:15,726 INFO L78 Accepts]: Start accepts. Automaton has 188798 states and 250561 transitions. Word has length 129 [2020-10-15 02:32:15,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:32:15,727 INFO L479 AbstractCegarLoop]: Abstraction has 188798 states and 250561 transitions. [2020-10-15 02:32:15,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-15 02:32:15,727 INFO L276 IsEmpty]: Start isEmpty. Operand 188798 states and 250561 transitions. [2020-10-15 02:32:15,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-15 02:32:15,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:32:15,736 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:32:15,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 02:32:15,736 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:32:15,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:32:15,736 INFO L82 PathProgramCache]: Analyzing trace with hash -300147754, now seen corresponding path program 1 times [2020-10-15 02:32:15,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:32:15,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55914813] [2020-10-15 02:32:15,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:32:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat