/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/ldv-regression/rule60_list2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 23:29:11,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 23:29:11,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 23:29:11,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 23:29:11,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 23:29:11,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 23:29:11,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 23:29:11,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 23:29:11,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 23:29:11,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 23:29:11,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 23:29:11,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 23:29:11,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 23:29:11,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 23:29:11,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 23:29:11,904 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 23:29:11,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 23:29:11,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 23:29:11,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 23:29:11,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 23:29:11,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 23:29:11,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 23:29:11,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 23:29:11,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 23:29:11,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 23:29:11,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 23:29:11,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 23:29:11,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 23:29:11,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 23:29:11,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 23:29:11,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 23:29:11,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 23:29:11,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 23:29:11,920 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 23:29:11,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 23:29:11,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 23:29:11,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 23:29:11,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 23:29:11,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 23:29:11,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 23:29:11,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 23:29:11,925 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 [2020-10-14 23:29:11,947 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 23:29:11,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 23:29:11,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 23:29:11,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 23:29:11,949 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 23:29:11,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 23:29:11,949 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 23:29:11,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 23:29:11,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 23:29:11,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 23:29:11,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 23:29:11,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 23:29:11,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 23:29:11,951 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 23:29:11,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 23:29:11,951 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 23:29:11,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 23:29:11,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 23:29:11,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 23:29:11,952 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 23:29:11,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 23:29:11,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 23:29:11,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 23:29:11,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 23:29:11,953 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 23:29:11,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 23:29:11,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 23:29:11,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 23:29:11,954 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 23:29:11,954 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; [2020-10-14 23:29:12,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 23:29:12,328 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 23:29:12,334 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 23:29:12,335 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 23:29:12,336 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 23:29:12,336 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-10-14 23:29:12,416 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1c5b3fb1/990685df2e9f4df38c5c408aaace1dc9/FLAG0ca55bf56 [2020-10-14 23:29:12,983 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 23:29:12,984 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-10-14 23:29:13,007 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1c5b3fb1/990685df2e9f4df38c5c408aaace1dc9/FLAG0ca55bf56 [2020-10-14 23:29:13,221 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1c5b3fb1/990685df2e9f4df38c5c408aaace1dc9 [2020-10-14 23:29:13,231 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 23:29:13,234 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 23:29:13,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 23:29:13,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 23:29:13,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 23:29:13,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:29:13" (1/1) ... [2020-10-14 23:29:13,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b0a7f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:29:13, skipping insertion in model container [2020-10-14 23:29:13,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:29:13" (1/1) ... [2020-10-14 23:29:13,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 23:29:13,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 23:29:13,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:29:13,597 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 23:29:13,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:29:13,838 INFO L208 MainTranslator]: Completed translation [2020-10-14 23:29:13,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:29:13 WrapperNode [2020-10-14 23:29:13,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 23:29:13,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 23:29:13,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 23:29:13,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 23:29:13,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:29:13" (1/1) ... [2020-10-14 23:29:13,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:29:13" (1/1) ... [2020-10-14 23:29:13,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:29:13" (1/1) ... [2020-10-14 23:29:13,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:29:13" (1/1) ... [2020-10-14 23:29:13,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:29:13" (1/1) ... [2020-10-14 23:29:13,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:29:13" (1/1) ... [2020-10-14 23:29:13,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:29:13" (1/1) ... [2020-10-14 23:29:13,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 23:29:13,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 23:29:13,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 23:29:13,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 23:29:13,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:29:13" (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 [2020-10-14 23:29:13,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 23:29:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 23:29:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-10-14 23:29:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-10-14 23:29:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-10-14 23:29:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-14 23:29:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-10-14 23:29:13,975 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 23:29:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 23:29:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-10-14 23:29:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-10-14 23:29:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-10-14 23:29:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-10-14 23:29:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-10-14 23:29:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-10-14 23:29:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-10-14 23:29:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-10-14 23:29:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-10-14 23:29:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-10-14 23:29:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-10-14 23:29:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-10-14 23:29:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-10-14 23:29:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-10-14 23:29:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-10-14 23:29:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-10-14 23:29:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-10-14 23:29:13,978 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-10-14 23:29:13,978 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-10-14 23:29:13,978 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-10-14 23:29:13,978 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-10-14 23:29:13,978 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-10-14 23:29:13,978 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-10-14 23:29:13,978 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-10-14 23:29:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-10-14 23:29:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-10-14 23:29:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-10-14 23:29:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-10-14 23:29:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-10-14 23:29:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-10-14 23:29:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-10-14 23:29:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-10-14 23:29:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-10-14 23:29:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-10-14 23:29:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-10-14 23:29:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-10-14 23:29:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-10-14 23:29:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-10-14 23:29:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-10-14 23:29:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-14 23:29:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-14 23:29:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-10-14 23:29:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-10-14 23:29:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-10-14 23:29:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-14 23:29:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-10-14 23:29:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-10-14 23:29:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-10-14 23:29:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-10-14 23:29:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-10-14 23:29:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-10-14 23:29:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-10-14 23:29:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-10-14 23:29:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-10-14 23:29:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-10-14 23:29:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-10-14 23:29:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-10-14 23:29:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-10-14 23:29:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-10-14 23:29:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-10-14 23:29:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-10-14 23:29:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-10-14 23:29:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-10-14 23:29:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-10-14 23:29:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-10-14 23:29:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-10-14 23:29:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-10-14 23:29:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-10-14 23:29:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-10-14 23:29:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-10-14 23:29:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-10-14 23:29:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-10-14 23:29:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-10-14 23:29:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-10-14 23:29:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-10-14 23:29:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-10-14 23:29:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-10-14 23:29:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-10-14 23:29:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-10-14 23:29:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-10-14 23:29:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-10-14 23:29:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-10-14 23:29:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-10-14 23:29:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-10-14 23:29:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-10-14 23:29:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-10-14 23:29:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-10-14 23:29:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-10-14 23:29:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-10-14 23:29:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-10-14 23:29:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-10-14 23:29:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-10-14 23:29:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-10-14 23:29:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-10-14 23:29:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-10-14 23:29:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-10-14 23:29:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-10-14 23:29:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-10-14 23:29:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-10-14 23:29:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-10-14 23:29:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-10-14 23:29:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-10-14 23:29:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 23:29:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 23:29:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-14 23:29:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 23:29:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-14 23:29:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-10-14 23:29:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-14 23:29:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-10-14 23:29:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-10-14 23:29:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-10-14 23:29:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-10-14 23:29:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-10-14 23:29:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-10-14 23:29:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-10-14 23:29:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-10-14 23:29:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-10-14 23:29:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-10-14 23:29:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-10-14 23:29:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 23:29:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-10-14 23:29:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-10-14 23:29:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-14 23:29:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-10-14 23:29:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 23:29:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 23:29:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 23:29:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 23:29:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 23:29:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 23:29:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 23:29:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 23:29:14,612 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 23:29:14,613 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 23:29:14,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:29:14 BoogieIcfgContainer [2020-10-14 23:29:14,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 23:29:14,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 23:29:14,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 23:29:14,628 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 23:29:14,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:29:13" (1/3) ... [2020-10-14 23:29:14,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b698278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:29:14, skipping insertion in model container [2020-10-14 23:29:14,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:29:13" (2/3) ... [2020-10-14 23:29:14,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b698278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:29:14, skipping insertion in model container [2020-10-14 23:29:14,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:29:14" (3/3) ... [2020-10-14 23:29:14,632 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.i [2020-10-14 23:29:14,644 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 23:29:14,654 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 23:29:14,666 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 23:29:14,691 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 23:29:14,692 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 23:29:14,692 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 23:29:14,692 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 23:29:14,692 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 23:29:14,693 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 23:29:14,693 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 23:29:14,693 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 23:29:14,710 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-10-14 23:29:14,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-14 23:29:14,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:29:14,718 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:29:14,719 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:29:14,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:29:14,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1135050545, now seen corresponding path program 1 times [2020-10-14 23:29:14,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:29:14,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1205698574] [2020-10-14 23:29:14,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:29:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:14,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:15,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:15,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 23:29:15,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:15,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-10-14 23:29:15,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:15,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 23:29:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 23:29:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:29:15,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 23:29:15,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:29:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:15,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:15,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:15,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:29:15,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:15,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 23:29:15,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:15,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:15,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:29:15,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:15,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:29:15,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:15,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:29:15,299 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1205698574] [2020-10-14 23:29:15,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:29:15,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 23:29:15,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374007969] [2020-10-14 23:29:15,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 23:29:15,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:29:15,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 23:29:15,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:29:15,326 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 7 states. [2020-10-14 23:29:15,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:29:15,713 INFO L93 Difference]: Finished difference Result 88 states and 113 transitions. [2020-10-14 23:29:15,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 23:29:15,715 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-14 23:29:15,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:29:15,728 INFO L225 Difference]: With dead ends: 88 [2020-10-14 23:29:15,729 INFO L226 Difference]: Without dead ends: 43 [2020-10-14 23:29:15,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-14 23:29:15,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-14 23:29:15,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2020-10-14 23:29:15,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-14 23:29:15,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2020-10-14 23:29:15,790 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 13 [2020-10-14 23:29:15,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:29:15,790 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2020-10-14 23:29:15,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 23:29:15,791 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2020-10-14 23:29:15,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-14 23:29:15,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:29:15,794 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 23:29:15,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 23:29:15,794 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:29:15,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:29:15,795 INFO L82 PathProgramCache]: Analyzing trace with hash -925661111, now seen corresponding path program 1 times [2020-10-14 23:29:15,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:29:15,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [851395939] [2020-10-14 23:29:15,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:29:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:15,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:15,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:16,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:18,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:18,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-14 23:29:18,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 23:29:18,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2875 [2020-10-14 23:29:18,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:18,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:18,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 23:29:18,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:29:18,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 23:29:18,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 23:29:18,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:29:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:18,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:18,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:18,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:29:18,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:18,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 23:29:18,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:18,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:18,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:29:18,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:18,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:29:18,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:18,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 23:29:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:18,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:18,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:18,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 23:29:18,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:18,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 23:29:18,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:18,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:18,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:29:18,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:18,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:29:18,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:18,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:29:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:18,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:18,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:18,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:18,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:18,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:29:18,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:18,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:18,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:29:18,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:18,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:29:18,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:18,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 23:29:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:18,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:18,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:18,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 23:29:18,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:18,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 23:29:18,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:18,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:18,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:29:18,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:18,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:29:18,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:18,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:29:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:18,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:18,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:18,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:18,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:18,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:29:18,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:18,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:18,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:29:18,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:18,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:29:18,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:18,907 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 23:29:18,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [851395939] [2020-10-14 23:29:18,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:29:18,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 23:29:18,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847628603] [2020-10-14 23:29:18,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 23:29:18,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:29:18,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 23:29:18,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 23:29:18,911 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 8 states. [2020-10-14 23:29:19,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:29:19,447 INFO L93 Difference]: Finished difference Result 69 states and 78 transitions. [2020-10-14 23:29:19,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 23:29:19,448 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2020-10-14 23:29:19,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:29:19,450 INFO L225 Difference]: With dead ends: 69 [2020-10-14 23:29:19,450 INFO L226 Difference]: Without dead ends: 58 [2020-10-14 23:29:19,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-10-14 23:29:19,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-14 23:29:19,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 55. [2020-10-14 23:29:19,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-14 23:29:19,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 63 transitions. [2020-10-14 23:29:19,466 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 63 transitions. Word has length 38 [2020-10-14 23:29:19,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:29:19,466 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 63 transitions. [2020-10-14 23:29:19,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 23:29:19,467 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2020-10-14 23:29:19,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 23:29:19,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:29:19,469 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 23:29:19,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 23:29:19,469 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:29:19,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:29:19,470 INFO L82 PathProgramCache]: Analyzing trace with hash -366868786, now seen corresponding path program 1 times [2020-10-14 23:29:19,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:29:19,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1381356086] [2020-10-14 23:29:19,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:29:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:19,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:19,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:19,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:20,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:21,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:21,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 23:29:21,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 23:29:21,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1863 [2020-10-14 23:29:21,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:21,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:21,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 23:29:21,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:29:21,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 23:29:21,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:21,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:29:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:21,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:21,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:21,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:29:21,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:21,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 23:29:21,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:21,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:21,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:29:21,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:21,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:29:21,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:21,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 23:29:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:21,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:21,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:21,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 23:29:21,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:21,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 23:29:21,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:21,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:21,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:29:21,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:21,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:29:21,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:21,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:29:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:21,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:21,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:21,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:21,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:21,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:29:21,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:21,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:21,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:29:21,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:21,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:29:21,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:21,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 23:29:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:21,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:21,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:21,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 23:29:21,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:21,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 23:29:21,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:21,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:21,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:29:21,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:21,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:29:21,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:21,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:29:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:21,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:21,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:21,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:21,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:21,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 23:29:21,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:21,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:21,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:29:21,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:21,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 23:29:21,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:21,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 23:29:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:21,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:21,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:21,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:21,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:21,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 23:29:21,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:21,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:21,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:29:21,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:29:21,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 23:29:21,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:21,690 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 23:29:21,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1381356086] [2020-10-14 23:29:21,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:29:21,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 23:29:21,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438167342] [2020-10-14 23:29:21,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 23:29:21,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:29:21,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 23:29:21,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-10-14 23:29:21,693 INFO L87 Difference]: Start difference. First operand 55 states and 63 transitions. Second operand 13 states. [2020-10-14 23:29:22,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:29:22,520 INFO L93 Difference]: Finished difference Result 98 states and 112 transitions. [2020-10-14 23:29:22,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 23:29:22,520 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 45 [2020-10-14 23:29:22,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:29:22,522 INFO L225 Difference]: With dead ends: 98 [2020-10-14 23:29:22,522 INFO L226 Difference]: Without dead ends: 63 [2020-10-14 23:29:22,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2020-10-14 23:29:22,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-14 23:29:22,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 60. [2020-10-14 23:29:22,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-14 23:29:22,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 68 transitions. [2020-10-14 23:29:22,536 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 68 transitions. Word has length 45 [2020-10-14 23:29:22,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:29:22,536 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 68 transitions. [2020-10-14 23:29:22,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 23:29:22,536 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 68 transitions. [2020-10-14 23:29:22,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 23:29:22,538 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:29:22,538 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 23:29:22,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 23:29:22,539 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:29:22,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:29:22,539 INFO L82 PathProgramCache]: Analyzing trace with hash -775693011, now seen corresponding path program 1 times [2020-10-14 23:29:22,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:29:22,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863579923] [2020-10-14 23:29:22,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:29:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:22,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:22,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:22,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:23,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:23,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 23:29:23,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 23:29:23,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1434 [2020-10-14 23:29:23,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:23,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:23,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 23:29:23,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:29:23,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 23:29:23,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:24,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:29:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:24,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:24,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:24,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:29:24,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:24,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 23:29:24,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:24,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:24,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:29:24,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:24,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:29:24,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 23:29:24,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 23:29:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:24,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:24,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:24,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 23:29:24,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:24,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 23:29:24,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:24,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:24,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:29:24,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:24,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:29:24,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:24,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:29:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:24,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:24,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:24,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:24,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:24,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 23:29:24,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:24,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:24,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:29:24,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:24,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 23:29:24,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:24,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 23:29:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:24,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:24,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:24,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 23:29:24,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:24,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 23:29:24,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:24,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:24,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:29:24,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:24,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:29:24,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:24,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:29:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:24,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:24,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:24,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:24,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:24,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:29:24,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:24,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:24,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:29:24,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:24,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:29:24,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:24,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 23:29:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:24,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:24,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:24,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:24,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:24,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 23:29:24,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:24,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:24,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:29:24,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:29:24,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 23:29:24,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:24,459 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 23:29:24,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1863579923] [2020-10-14 23:29:24,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:29:24,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 23:29:24,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919867760] [2020-10-14 23:29:24,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 23:29:24,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:29:24,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 23:29:24,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-10-14 23:29:24,465 INFO L87 Difference]: Start difference. First operand 60 states and 68 transitions. Second operand 16 states. [2020-10-14 23:29:25,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:29:25,499 INFO L93 Difference]: Finished difference Result 106 states and 123 transitions. [2020-10-14 23:29:25,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 23:29:25,500 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 45 [2020-10-14 23:29:25,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:29:25,502 INFO L225 Difference]: With dead ends: 106 [2020-10-14 23:29:25,502 INFO L226 Difference]: Without dead ends: 62 [2020-10-14 23:29:25,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2020-10-14 23:29:25,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-14 23:29:25,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 57. [2020-10-14 23:29:25,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-14 23:29:25,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2020-10-14 23:29:25,516 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 45 [2020-10-14 23:29:25,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:29:25,519 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2020-10-14 23:29:25,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 23:29:25,519 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2020-10-14 23:29:25,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 23:29:25,520 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:29:25,521 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 23:29:25,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 23:29:25,521 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:29:25,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:29:25,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1335597358, now seen corresponding path program 1 times [2020-10-14 23:29:25,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:29:25,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [653157140] [2020-10-14 23:29:25,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:29:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:25,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:25,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:25,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 23:29:25,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:25,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-10-14 23:29:25,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:25,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:25,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 23:29:25,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 23:29:25,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 23:29:25,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 23:29:25,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:29:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:25,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:25,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:25,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:29:25,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:25,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:29:25,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:25,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:25,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:29:25,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:25,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:29:25,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:25,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 23:29:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:25,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:26,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:26,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 23:29:26,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:26,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 23:29:26,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:26,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:26,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 23:29:26,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:26,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 23:29:26,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:26,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:29:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:26,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:26,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:26,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:26,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:26,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 23:29:26,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:26,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:26,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:29:26,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:26,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 23:29:26,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:26,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 23:29:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:26,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:26,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:26,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 23:29:26,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:26,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 23:29:26,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:26,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:26,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 23:29:26,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:29:26,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 23:29:26,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:26,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:29:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:26,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:26,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:26,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:26,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:26,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 23:29:26,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:26,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:26,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 23:29:26,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:29:26,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 23:29:26,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:26,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 23:29:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:26,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:26,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:26,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:26,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:26,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 23:29:26,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:26,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:26,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 23:29:26,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:26,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 23:29:26,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:26,318 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-14 23:29:26,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [653157140] [2020-10-14 23:29:26,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:29:26,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 23:29:26,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810692684] [2020-10-14 23:29:26,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 23:29:26,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:29:26,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 23:29:26,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=455, Unknown=0, NotChecked=0, Total=506 [2020-10-14 23:29:26,321 INFO L87 Difference]: Start difference. First operand 57 states and 63 transitions. Second operand 23 states. [2020-10-14 23:29:27,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:29:27,329 INFO L93 Difference]: Finished difference Result 68 states and 76 transitions. [2020-10-14 23:29:27,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 23:29:27,330 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 45 [2020-10-14 23:29:27,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:29:27,331 INFO L225 Difference]: With dead ends: 68 [2020-10-14 23:29:27,331 INFO L226 Difference]: Without dead ends: 61 [2020-10-14 23:29:27,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=1239, Unknown=0, NotChecked=0, Total=1406 [2020-10-14 23:29:27,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-14 23:29:27,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2020-10-14 23:29:27,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-14 23:29:27,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2020-10-14 23:29:27,344 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 45 [2020-10-14 23:29:27,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:29:27,344 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2020-10-14 23:29:27,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 23:29:27,344 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2020-10-14 23:29:27,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-14 23:29:27,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:29:27,346 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-14 23:29:27,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 23:29:27,346 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:29:27,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:29:27,347 INFO L82 PathProgramCache]: Analyzing trace with hash -2119488644, now seen corresponding path program 1 times [2020-10-14 23:29:27,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:29:27,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1901551311] [2020-10-14 23:29:27,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:29:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:27,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:27,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:28,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:28,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:28,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:32,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:32,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 23:29:32,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 23:29:32,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 23:29:32,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:32,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:32,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 23:29:32,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:29:32,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 23:29:32,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:32,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:29:32,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:32,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:32,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:32,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:29:32,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:32,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 23:29:32,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:32,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:32,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:29:32,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:32,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:29:32,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:29:32,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 23:29:32,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:32,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:32,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:32,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 23:29:32,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:32,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 23:29:32,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:32,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:32,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:29:32,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:32,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:29:32,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:32,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:29:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:32,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:32,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:32,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:32,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:32,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:29:32,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:32,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:32,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:29:32,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:32,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:29:32,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:32,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 23:29:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:32,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:32,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:32,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 23:29:32,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:32,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 23:29:32,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:32,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:32,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:29:32,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:32,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:29:32,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:32,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:29:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:32,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:32,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:32,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:32,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:32,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:29:32,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:32,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:32,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:29:32,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:32,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:29:32,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:32,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 23:29:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:32,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:32,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:32,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:32,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:32,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 23:29:32,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:32,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:32,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 23:29:32,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:29:32,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 23:29:32,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:32,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 23:29:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:32,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:32,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:32,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:32,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:32,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:29:32,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:32,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:32,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:29:32,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:32,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:29:32,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:32,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 23:29:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:32,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:32,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:32,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:29:32,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:32,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:29:32,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:32,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:32,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:29:32,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:32,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:29:32,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:32,700 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 23:29:32,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1901551311] [2020-10-14 23:29:32,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:29:32,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 23:29:32,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422279324] [2020-10-14 23:29:32,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 23:29:32,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:29:32,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 23:29:32,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-14 23:29:32,705 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 12 states. [2020-10-14 23:29:33,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:29:33,532 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2020-10-14 23:29:33,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 23:29:33,532 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-10-14 23:29:33,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:29:33,533 INFO L225 Difference]: With dead ends: 62 [2020-10-14 23:29:33,534 INFO L226 Difference]: Without dead ends: 54 [2020-10-14 23:29:33,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2020-10-14 23:29:33,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-14 23:29:33,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-14 23:29:33,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-14 23:29:33,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2020-10-14 23:29:33,552 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 57 [2020-10-14 23:29:33,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:29:33,552 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2020-10-14 23:29:33,552 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 23:29:33,552 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2020-10-14 23:29:33,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-14 23:29:33,557 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:29:33,557 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-14 23:29:33,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 23:29:33,558 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:29:33,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:29:33,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1366132026, now seen corresponding path program 1 times [2020-10-14 23:29:33,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:29:33,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [859763895] [2020-10-14 23:29:33,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:29:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:33,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:33,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:34,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:37,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:37,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 23:29:37,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 23:29:37,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3565 [2020-10-14 23:29:37,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:37,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:37,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 23:29:37,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 23:29:37,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 23:29:37,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:37,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:29:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:37,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:37,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:37,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:29:37,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:37,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:29:37,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:37,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:37,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:29:37,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:37,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:29:37,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:29:37,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 23:29:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:37,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:37,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:37,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 23:29:37,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:37,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 23:29:37,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:37,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:37,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 23:29:37,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:37,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 23:29:37,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:29:37,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:29:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:37,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:37,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:37,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:37,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:37,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:29:37,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:37,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:37,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:29:37,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:37,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 23:29:37,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:37,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 23:29:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:37,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:37,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:37,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 23:29:37,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:37,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 23:29:37,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:37,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:37,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 23:29:37,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:29:37,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 23:29:37,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:37,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:29:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:37,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:37,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:37,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:37,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:37,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 23:29:37,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:37,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:37,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 23:29:37,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:29:37,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 23:29:37,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:37,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 23:29:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:37,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:37,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:37,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:37,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:37,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:29:37,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:37,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:37,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:29:37,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:37,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:29:37,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:29:37,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 23:29:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:37,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:37,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:37,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:37,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:37,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 23:29:37,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:37,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:37,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 23:29:37,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:37,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 23:29:37,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:29:37,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 23:29:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:37,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:37,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:37,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:29:37,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:37,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:29:37,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:37,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:37,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:29:37,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:29:37,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 23:29:37,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:29:37,594 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 23:29:37,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [859763895] [2020-10-14 23:29:37,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:29:37,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-14 23:29:37,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845502876] [2020-10-14 23:29:37,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-14 23:29:37,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:29:37,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-14 23:29:37,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2020-10-14 23:29:37,599 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 24 states. [2020-10-14 23:29:38,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:29:38,535 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2020-10-14 23:29:38,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 23:29:38,535 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 57 [2020-10-14 23:29:38,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:29:38,536 INFO L225 Difference]: With dead ends: 61 [2020-10-14 23:29:38,536 INFO L226 Difference]: Without dead ends: 47 [2020-10-14 23:29:38,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=1299, Unknown=0, NotChecked=0, Total=1482 [2020-10-14 23:29:38,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-14 23:29:38,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-14 23:29:38,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-14 23:29:38,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2020-10-14 23:29:38,545 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 57 [2020-10-14 23:29:38,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:29:38,545 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2020-10-14 23:29:38,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-14 23:29:38,545 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2020-10-14 23:29:38,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-14 23:29:38,546 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:29:38,547 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-14 23:29:38,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 23:29:38,547 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:29:38,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:29:38,548 INFO L82 PathProgramCache]: Analyzing trace with hash 779326012, now seen corresponding path program 1 times [2020-10-14 23:29:38,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:29:38,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1527995278] [2020-10-14 23:29:38,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:29:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:38,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:38,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:39,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:39,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 23:29:39,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:29:39,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 495 [2020-10-14 23:29:39,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:39,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:39,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 23:29:39,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-14 23:29:39,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 23:29:39,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:39,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:29:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:39,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:39,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:39,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:29:39,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:39,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:29:39,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:39,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:39,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:29:39,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:39,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:29:39,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:29:39,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 23:29:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:39,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:39,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:39,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 23:29:39,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:39,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:29:39,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:39,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:39,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:29:39,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:39,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:29:39,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:29:39,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:29:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:39,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:39,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:39,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:39,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:39,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:29:39,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:39,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:39,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:29:39,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:39,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:29:39,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:29:39,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 23:29:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:39,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:39,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:39,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 23:29:39,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:39,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:29:39,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:39,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:39,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:29:39,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:39,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:29:39,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:29:39,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:29:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:39,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:39,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:39,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:39,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:39,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:29:39,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:39,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:29:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:29:39,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:29:39,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 23:29:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:39,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:39,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:39,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:39,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:39,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:29:39,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:39,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:39,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:29:39,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:39,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 23:29:39,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:29:39,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 23:29:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:39,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:39,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:39,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 23:29:39,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:39,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:29:39,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:39,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:39,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:29:39,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:29:39,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 23:29:39,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:29:39,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 23:29:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:39,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:39,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:39,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:29:39,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:39,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:29:39,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:39,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:39,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:29:39,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:29:39,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 23:29:39,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:29:39,238 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 23:29:39,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1527995278] [2020-10-14 23:29:39,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:29:39,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 23:29:39,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215715781] [2020-10-14 23:29:39,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 23:29:39,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:29:39,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 23:29:39,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-14 23:29:39,240 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 10 states. [2020-10-14 23:29:39,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:29:39,552 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-10-14 23:29:39,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 23:29:39,552 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2020-10-14 23:29:39,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:29:39,553 INFO L225 Difference]: With dead ends: 47 [2020-10-14 23:29:39,553 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 23:29:39,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2020-10-14 23:29:39,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 23:29:39,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 23:29:39,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 23:29:39,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 23:29:39,554 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2020-10-14 23:29:39,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:29:39,555 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 23:29:39,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 23:29:39,555 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 23:29:39,555 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 23:29:39,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 23:29:39,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 23:29:40,212 INFO L268 CegarLoopResult]: For program point my_mallocFINAL(lines 878 880) no Hoare annotation was computed. [2020-10-14 23:29:40,212 INFO L264 CegarLoopResult]: At program point L879(line 879) the Hoare annotation is: (or (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (<= 8 my_malloc_~size)) (not (= ~elem~0.offset 0)) (not (<= 8 |my_malloc_#in~size|)) (not (= ~elem~0.base 0))) [2020-10-14 23:29:40,212 INFO L268 CegarLoopResult]: For program point L879-1(line 879) no Hoare annotation was computed. [2020-10-14 23:29:40,212 INFO L264 CegarLoopResult]: At program point my_mallocENTRY(lines 878 880) the Hoare annotation is: (or (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|)) (not (= ~elem~0.offset 0)) (not (<= 8 |my_malloc_#in~size|)) (not (= ~elem~0.base 0))) [2020-10-14 23:29:40,213 INFO L268 CegarLoopResult]: For program point my_mallocEXIT(lines 878 880) no Hoare annotation was computed. [2020-10-14 23:29:40,213 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-14 23:29:40,213 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= |~#head~0.base| |old(~#head~0.base)|) (= |old(#length)| |#length|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= |~#head~0.offset| |old(~#head~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= ~elem~0.offset |old(~elem~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~elem~0.base |old(~elem~0.base)|) (= |old(#valid)| |#valid|)) [2020-10-14 23:29:40,213 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 23:29:40,213 INFO L268 CegarLoopResult]: For program point L896(lines 896 897) no Hoare annotation was computed. [2020-10-14 23:29:40,213 INFO L268 CegarLoopResult]: For program point L896-2(lines 895 898) no Hoare annotation was computed. [2020-10-14 23:29:40,213 INFO L268 CegarLoopResult]: For program point list_delEXIT(lines 895 898) no Hoare annotation was computed. [2020-10-14 23:29:40,214 INFO L264 CegarLoopResult]: At program point list_delENTRY(lines 895 898) the Hoare annotation is: (and (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset)) [2020-10-14 23:29:40,214 INFO L264 CegarLoopResult]: At program point list_addENTRY(lines 889 893) the Hoare annotation is: (let ((.cse0 (= |old(~elem~0.base)| ~elem~0.base))) (and (or (and .cse0 (= |old(~elem~0.offset)| ~elem~0.offset)) (= |old(~elem~0.offset)| |list_add_#in~new.offset|)) (or (not (= |old(~elem~0.base)| 0)) (= |old(~elem~0.base)| |list_add_#in~new.base|) (not (= |old(~elem~0.offset)| 0)) (and (= ~elem~0.offset 0) .cse0)))) [2020-10-14 23:29:40,214 INFO L268 CegarLoopResult]: For program point L891(lines 891 892) no Hoare annotation was computed. [2020-10-14 23:29:40,214 INFO L268 CegarLoopResult]: For program point L890(line 890) no Hoare annotation was computed. [2020-10-14 23:29:40,214 INFO L268 CegarLoopResult]: For program point L891-2(lines 889 893) no Hoare annotation was computed. [2020-10-14 23:29:40,214 INFO L264 CegarLoopResult]: At program point L890-2(line 890) the Hoare annotation is: (and (or (not (= |old(~elem~0.base)| 0)) (= |old(~elem~0.base)| |list_add_#in~new.base|) (not (= |old(~elem~0.offset)| 0))) (= |old(~elem~0.offset)| |list_add_#in~new.offset|)) [2020-10-14 23:29:40,215 INFO L268 CegarLoopResult]: For program point L890-3(line 890) no Hoare annotation was computed. [2020-10-14 23:29:40,215 INFO L268 CegarLoopResult]: For program point list_addEXIT(lines 889 893) no Hoare annotation was computed. [2020-10-14 23:29:40,215 INFO L268 CegarLoopResult]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-10-14 23:29:40,215 INFO L268 CegarLoopResult]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2020-10-14 23:29:40,215 INFO L268 CegarLoopResult]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2020-10-14 23:29:40,215 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2020-10-14 23:29:40,215 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 23:29:40,216 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~elem~0.offset 0) (= ~elem~0.base 0)) [2020-10-14 23:29:40,216 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 23:29:40,216 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 23:29:40,216 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 902 917) the Hoare annotation is: (or (not (= |old(~elem~0.base)| 0)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset)) (not (= |old(~elem~0.offset)| 0))) [2020-10-14 23:29:40,216 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 902 917) no Hoare annotation was computed. [2020-10-14 23:29:40,216 INFO L264 CegarLoopResult]: At program point L909(line 909) the Hoare annotation is: (let ((.cse0 (not (= main_~dev2~0.offset ~elem~0.offset)))) (or (and (= ~elem~0.offset 0) (= ~elem~0.base 0) (or (not (= main_~dev2~0.base ~elem~0.base)) .cse0)) (and (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset) (not (= main_~dev2~0.offset main_~dev1~0.offset)) .cse0 (or (not (= main_~dev2~0.offset 0)) (not (= main_~dev2~0.base 0)))) (not (= |old(~elem~0.base)| 0)) (not (= |old(~elem~0.offset)| 0)))) [2020-10-14 23:29:40,217 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 902 917) no Hoare annotation was computed. [2020-10-14 23:29:40,217 INFO L264 CegarLoopResult]: At program point L908(line 908) the Hoare annotation is: (let ((.cse1 (not (= main_~dev2~0.offset ~elem~0.offset))) (.cse2 (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset)) (.cse3 (not (= main_~dev2~0.offset main_~dev1~0.offset))) (.cse0 (= main_~dev2~0.base ~elem~0.base)) (.cse4 (or (not (= main_~dev2~0.offset 0)) (not (= main_~dev2~0.base 0))))) (or (and (= ~elem~0.offset 0) (= ~elem~0.base 0) (or (not .cse0) .cse1)) (and .cse2 .cse3 .cse1 .cse4) (and .cse2 .cse3 .cse0 .cse4) (not (= |old(~elem~0.base)| 0)) (not (= |old(~elem~0.offset)| 0)))) [2020-10-14 23:29:40,217 INFO L264 CegarLoopResult]: At program point L907(line 907) the Hoare annotation is: (or (not (= |old(~elem~0.base)| 0)) (and (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset) (not (= main_~dev2~0.offset main_~dev1~0.offset)) (or (not (= ~elem~0.base main_~dev1~0.base)) (not (= main_~dev1~0.offset ~elem~0.offset))) (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset) (or (not (= main_~dev2~0.base ~elem~0.base)) (not (= main_~dev2~0.offset ~elem~0.offset)))) (not (= |old(~elem~0.offset)| 0))) [2020-10-14 23:29:40,217 INFO L268 CegarLoopResult]: For program point L906(lines 906 915) no Hoare annotation was computed. [2020-10-14 23:29:40,217 INFO L264 CegarLoopResult]: At program point L907-1(line 907) the Hoare annotation is: (let ((.cse0 (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset)) (.cse1 (not (= main_~dev1~0.offset ~elem~0.offset))) (.cse2 (= main_~dev2~0.base ~elem~0.base)) (.cse3 (= main_~dev2~0.offset ~elem~0.offset))) (or (and .cse0 .cse1 .cse2 (or (not (= main_~dev2~0.offset 0)) (not (= main_~dev2~0.base 0))) .cse3) (not (= |old(~elem~0.base)| 0)) (and .cse0 (not (= main_~dev2~0.offset main_~dev1~0.offset)) (or (not (= ~elem~0.base main_~dev1~0.base)) .cse1) (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset) (or (not .cse2) (not .cse3))) (not (= |old(~elem~0.offset)| 0)))) [2020-10-14 23:29:40,218 INFO L264 CegarLoopResult]: At program point L905(line 905) the Hoare annotation is: (let ((.cse0 (= |old(~elem~0.base)| ~elem~0.base)) (.cse1 (= |old(~elem~0.offset)| ~elem~0.offset))) (or (and (= main_~dev1~0.offset ~guard_malloc_counter~0.offset) (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset) .cse0 .cse1) (not (= |old(~elem~0.base)| 0)) (not (= |old(~elem~0.offset)| 0)) (and (= ~elem~0.base main_~dev1~0.base) (= main_~dev1~0.offset ~elem~0.offset) .cse0 .cse1))) [2020-10-14 23:29:40,218 INFO L268 CegarLoopResult]: For program point L906-1(lines 906 915) no Hoare annotation was computed. [2020-10-14 23:29:40,218 INFO L264 CegarLoopResult]: At program point L904(line 904) the Hoare annotation is: (or (not (= |old(~elem~0.base)| 0)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset)) (not (= |old(~elem~0.offset)| 0))) [2020-10-14 23:29:40,218 INFO L268 CegarLoopResult]: For program point L905-1(line 905) no Hoare annotation was computed. [2020-10-14 23:29:40,218 INFO L268 CegarLoopResult]: For program point L904-1(line 904) no Hoare annotation was computed. [2020-10-14 23:29:40,218 INFO L264 CegarLoopResult]: At program point __getMemoryENTRY(lines 869 876) the Hoare annotation is: (or (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|)) (not (<= 8 |__getMemory_#in~size|)) (not (= ~elem~0.offset 0)) (not (= ~elem~0.base 0))) [2020-10-14 23:29:40,218 INFO L268 CegarLoopResult]: For program point __getMemoryEXIT(lines 869 876) no Hoare annotation was computed. [2020-10-14 23:29:40,218 INFO L268 CegarLoopResult]: For program point __getMemoryFINAL(lines 869 876) no Hoare annotation was computed. [2020-10-14 23:29:40,219 INFO L268 CegarLoopResult]: For program point L873(lines 873 874) no Hoare annotation was computed. [2020-10-14 23:29:40,219 INFO L268 CegarLoopResult]: For program point L871(line 871) no Hoare annotation was computed. [2020-10-14 23:29:40,219 INFO L264 CegarLoopResult]: At program point L871-2(line 871) the Hoare annotation is: (or (not (<= 8 |__getMemory_#in~size|)) (not (= ~elem~0.base 0)) (not (= ~elem~0.offset 0))) [2020-10-14 23:29:40,219 INFO L268 CegarLoopResult]: For program point L871-3(line 871) no Hoare annotation was computed. [2020-10-14 23:29:40,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:29:40 BoogieIcfgContainer [2020-10-14 23:29:40,225 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 23:29:40,228 INFO L168 Benchmark]: Toolchain (without parser) took 26994.19 ms. Allocated memory was 147.3 MB in the beginning and 575.7 MB in the end (delta: 428.3 MB). Free memory was 103.1 MB in the beginning and 276.1 MB in the end (delta: -173.0 MB). Peak memory consumption was 255.3 MB. Max. memory is 7.1 GB. [2020-10-14 23:29:40,229 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.4 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-10-14 23:29:40,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 604.40 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 102.7 MB in the beginning and 169.1 MB in the end (delta: -66.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-10-14 23:29:40,231 INFO L168 Benchmark]: Boogie Preprocessor took 58.61 ms. Allocated memory is still 203.9 MB. Free memory was 169.1 MB in the beginning and 166.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-10-14 23:29:40,232 INFO L168 Benchmark]: RCFGBuilder took 723.76 ms. Allocated memory is still 203.9 MB. Free memory was 166.2 MB in the beginning and 120.9 MB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 7.1 GB. [2020-10-14 23:29:40,233 INFO L168 Benchmark]: TraceAbstraction took 25601.64 ms. Allocated memory was 203.9 MB in the beginning and 575.7 MB in the end (delta: 371.7 MB). Free memory was 120.9 MB in the beginning and 276.1 MB in the end (delta: -155.3 MB). Peak memory consumption was 216.4 MB. Max. memory is 7.1 GB. [2020-10-14 23:29:40,236 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.4 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 604.40 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 102.7 MB in the beginning and 169.1 MB in the end (delta: -66.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 58.61 ms. Allocated memory is still 203.9 MB. Free memory was 169.1 MB in the beginning and 166.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 723.76 ms. Allocated memory is still 203.9 MB. Free memory was 166.2 MB in the beginning and 120.9 MB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 25601.64 ms. Allocated memory was 203.9 MB in the beginning and 575.7 MB in the end (delta: 371.7 MB). Free memory was 120.9 MB in the beginning and 276.1 MB in the end (delta: -155.3 MB). Peak memory consumption was 216.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.8s, OverallIterations: 8, TraceHistogramMax: 3, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 286 SDtfs, 481 SDslu, 640 SDs, 0 SdLazy, 3334 SolverSat, 369 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 277 GetRequests, 93 SyntacticMatches, 2 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 22 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 77 PreInvPairs, 88 NumberOfFragments, 480 HoareAnnotationTreeSize, 77 FomulaSimplifications, 289 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 18 FomulaSimplificationsInter, 516 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 18.3s InterpolantComputationTime, 357 NumberOfCodeBlocks, 357 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 349 ConstructedInterpolants, 0 QuantifiedInterpolants, 77633 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 78/113 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...