/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=BIGGEST --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/forester-heap/sll-01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:34:28,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:34:28,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:34:28,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:34:28,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:34:28,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:34:28,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:34:28,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:34:28,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:34:28,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:34:28,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:34:28,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:34:28,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:34:28,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:34:28,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:34:28,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:34:28,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:34:28,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:34:28,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:34:28,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:34:28,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:34:28,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:34:28,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:34:28,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:34:28,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:34:28,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:34:28,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:34:28,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:34:28,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:34:28,941 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:34:28,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:34:28,942 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:34:28,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:34:28,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:34:28,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:34:28,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:34:28,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:34:28,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:34:28,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:34:28,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:34:28,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:34:28,949 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 [2020-10-12 15:34:28,972 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:34:28,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:34:28,973 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:34:28,974 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:34:28,974 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:34:28,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:34:28,974 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:34:28,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:34:28,975 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:34:28,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:34:28,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:34:28,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:34:28,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:34:28,976 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:34:28,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:34:28,976 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:34:28,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:34:28,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:34:28,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:34:28,977 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:34:28,977 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:34:28,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:34:28,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:34:28,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:34:28,978 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:34:28,978 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:34:28,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:34:28,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:34:28,979 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:34:28,979 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 15:34:29,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:34:29,321 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:34:29,327 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:34:29,330 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:34:29,331 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:34:29,332 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-01-2.i [2020-10-12 15:34:29,415 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64e893e44/d2f6b3bf3c7b4339b6a0b6e0f70160f2/FLAGd66cba8a2 [2020-10-12 15:34:30,028 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:34:30,029 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/sll-01-2.i [2020-10-12 15:34:30,044 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64e893e44/d2f6b3bf3c7b4339b6a0b6e0f70160f2/FLAGd66cba8a2 [2020-10-12 15:34:30,243 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64e893e44/d2f6b3bf3c7b4339b6a0b6e0f70160f2 [2020-10-12 15:34:30,254 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:34:30,257 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:34:30,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:34:30,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:34:30,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:34:30,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:34:30" (1/1) ... [2020-10-12 15:34:30,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e6d6ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:30, skipping insertion in model container [2020-10-12 15:34:30,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:34:30" (1/1) ... [2020-10-12 15:34:30,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:34:30,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:34:30,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:34:30,827 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:34:30,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:34:30,940 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:34:30,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:30 WrapperNode [2020-10-12 15:34:30,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:34:30,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:34:30,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:34:30,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:34:30,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:30" (1/1) ... [2020-10-12 15:34:30,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:30" (1/1) ... [2020-10-12 15:34:30,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:30" (1/1) ... [2020-10-12 15:34:30,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:30" (1/1) ... [2020-10-12 15:34:30,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:30" (1/1) ... [2020-10-12 15:34:31,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:30" (1/1) ... [2020-10-12 15:34:31,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:30" (1/1) ... [2020-10-12 15:34:31,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:34:31,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:34:31,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:34:31,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:34:31,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:30" (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 [2020-10-12 15:34:31,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:34:31,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:34:31,098 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:34:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-12 15:34:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-12 15:34:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-12 15:34:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-12 15:34:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-12 15:34:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-12 15:34:31,100 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-12 15:34:31,100 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-12 15:34:31,100 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-12 15:34:31,100 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-12 15:34:31,100 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-12 15:34:31,100 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-12 15:34:31,101 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-12 15:34:31,101 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-12 15:34:31,101 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-12 15:34:31,101 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-12 15:34:31,101 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-12 15:34:31,101 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-12 15:34:31,101 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-12 15:34:31,102 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-12 15:34:31,102 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-12 15:34:31,102 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-12 15:34:31,102 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-12 15:34:31,102 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-12 15:34:31,102 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-12 15:34:31,103 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-12 15:34:31,103 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-12 15:34:31,103 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-12 15:34:31,103 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-12 15:34:31,103 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-12 15:34:31,103 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-12 15:34:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-12 15:34:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-12 15:34:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-12 15:34:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-12 15:34:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-12 15:34:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-12 15:34:31,105 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-12 15:34:31,105 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-12 15:34:31,105 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-12 15:34:31,105 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-12 15:34:31,105 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-12 15:34:31,105 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-12 15:34:31,106 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-12 15:34:31,106 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-12 15:34:31,106 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-12 15:34:31,106 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-12 15:34:31,106 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-12 15:34:31,106 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-12 15:34:31,107 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-12 15:34:31,107 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 15:34:31,107 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-12 15:34:31,107 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-12 15:34:31,107 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 15:34:31,107 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-12 15:34:31,107 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-12 15:34:31,108 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-12 15:34:31,108 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-12 15:34:31,108 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-12 15:34:31,108 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 15:34:31,108 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-12 15:34:31,108 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-12 15:34:31,109 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-12 15:34:31,109 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 15:34:31,109 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-12 15:34:31,109 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-12 15:34:31,109 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-12 15:34:31,109 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-12 15:34:31,110 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-12 15:34:31,110 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-12 15:34:31,110 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-12 15:34:31,110 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-12 15:34:31,110 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-12 15:34:31,110 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-12 15:34:31,110 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-12 15:34:31,111 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-12 15:34:31,111 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-12 15:34:31,111 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-12 15:34:31,111 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-12 15:34:31,111 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-12 15:34:31,111 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-12 15:34:31,112 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-12 15:34:31,112 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-12 15:34:31,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-12 15:34:31,112 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-12 15:34:31,112 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-12 15:34:31,112 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-12 15:34:31,112 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-12 15:34:31,113 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-12 15:34:31,113 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-12 15:34:31,113 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-12 15:34:31,113 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-12 15:34:31,113 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-12 15:34:31,113 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-12 15:34:31,113 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-12 15:34:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-12 15:34:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-12 15:34:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-12 15:34:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-12 15:34:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-12 15:34:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-12 15:34:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-12 15:34:31,115 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-12 15:34:31,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 15:34:31,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:34:31,115 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:34:31,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 15:34:31,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 15:34:31,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 15:34:31,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 15:34:31,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:34:31,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:34:31,810 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:34:31,811 INFO L295 CfgBuilder]: Removed 30 assume(true) statements. [2020-10-12 15:34:31,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:34:31 BoogieIcfgContainer [2020-10-12 15:34:31,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:34:31,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:34:31,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:34:31,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:34:31,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:34:30" (1/3) ... [2020-10-12 15:34:31,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a16ba1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:34:31, skipping insertion in model container [2020-10-12 15:34:31,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:34:30" (2/3) ... [2020-10-12 15:34:31,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a16ba1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:34:31, skipping insertion in model container [2020-10-12 15:34:31,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:34:31" (3/3) ... [2020-10-12 15:34:31,825 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-01-2.i [2020-10-12 15:34:31,836 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:34:31,844 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-10-12 15:34:31,859 INFO L251 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-10-12 15:34:31,886 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:34:31,887 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:34:31,887 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:34:31,887 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:34:31,888 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:34:31,888 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:34:31,888 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:34:31,888 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:34:31,916 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-10-12 15:34:31,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-12 15:34:31,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:31,924 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:34:31,925 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:31,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:31,933 INFO L82 PathProgramCache]: Analyzing trace with hash 11193106, now seen corresponding path program 1 times [2020-10-12 15:34:31,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:31,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [632061461] [2020-10-12 15:34:31,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:32,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:32,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:32,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:32,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 15:34:32,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:32,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-12 15:34:32,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:32,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:34:32,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 15:34:32,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:34:32,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 15:34:32,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:32,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:32,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:32,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:32,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:32,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:34:32,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:32,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:32,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:32,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:32,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:32,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:32,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [632061461] [2020-10-12 15:34:32,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:34:32,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 15:34:32,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123915308] [2020-10-12 15:34:32,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 15:34:32,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:32,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 15:34:32,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:34:32,322 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 4 states. [2020-10-12 15:34:32,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:32,545 INFO L93 Difference]: Finished difference Result 188 states and 306 transitions. [2020-10-12 15:34:32,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-12 15:34:32,547 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-12 15:34:32,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:32,559 INFO L225 Difference]: With dead ends: 188 [2020-10-12 15:34:32,559 INFO L226 Difference]: Without dead ends: 100 [2020-10-12 15:34:32,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:34:32,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-12 15:34:32,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 82. [2020-10-12 15:34:32,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-12 15:34:32,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2020-10-12 15:34:32,611 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 8 [2020-10-12 15:34:32,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:32,611 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2020-10-12 15:34:32,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 15:34:32,612 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2020-10-12 15:34:32,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-12 15:34:32,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:32,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:34:32,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:34:32,613 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:32,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:32,614 INFO L82 PathProgramCache]: Analyzing trace with hash -648207140, now seen corresponding path program 1 times [2020-10-12 15:34:32,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:32,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697604426] [2020-10-12 15:34:32,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:32,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:32,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:32,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:32,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-12 15:34:32,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:34:32,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-12 15:34:32,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:32,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 15:34:32,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 15:34:32,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 15:34:32,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:34:32,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:32,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:32,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:32,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:32,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:32,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:34:32,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:32,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:32,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:32,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:32,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:32,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:32,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697604426] [2020-10-12 15:34:32,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:34:32,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 15:34:32,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912976607] [2020-10-12 15:34:32,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:34:32,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:32,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:34:32,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:34:32,884 INFO L87 Difference]: Start difference. First operand 82 states and 92 transitions. Second operand 5 states. [2020-10-12 15:34:33,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:33,142 INFO L93 Difference]: Finished difference Result 208 states and 233 transitions. [2020-10-12 15:34:33,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:34:33,143 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-12 15:34:33,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:33,145 INFO L225 Difference]: With dead ends: 208 [2020-10-12 15:34:33,145 INFO L226 Difference]: Without dead ends: 138 [2020-10-12 15:34:33,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:34:33,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-12 15:34:33,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 84. [2020-10-12 15:34:33,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-12 15:34:33,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 94 transitions. [2020-10-12 15:34:33,161 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 94 transitions. Word has length 14 [2020-10-12 15:34:33,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:33,161 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 94 transitions. [2020-10-12 15:34:33,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:34:33,161 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2020-10-12 15:34:33,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-12 15:34:33,162 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:33,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:34:33,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:34:33,163 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:33,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:33,163 INFO L82 PathProgramCache]: Analyzing trace with hash -648205218, now seen corresponding path program 1 times [2020-10-12 15:34:33,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:33,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597385814] [2020-10-12 15:34:33,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:33,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:33,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:33,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:33,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:33,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-12 15:34:33,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:34:33,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 15:34:33,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:33,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 15:34:33,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 15:34:33,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 15:34:33,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:34:33,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:33,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:33,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:33,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:33,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:33,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:34:33,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:33,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:33,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:33,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:33,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 15:34:33,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:33,306 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597385814] [2020-10-12 15:34:33,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:34:33,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 15:34:33,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297898184] [2020-10-12 15:34:33,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:34:33,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:33,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:34:33,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:34:33,309 INFO L87 Difference]: Start difference. First operand 84 states and 94 transitions. Second operand 5 states. [2020-10-12 15:34:33,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:33,492 INFO L93 Difference]: Finished difference Result 84 states and 94 transitions. [2020-10-12 15:34:33,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:34:33,493 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-12 15:34:33,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:33,495 INFO L225 Difference]: With dead ends: 84 [2020-10-12 15:34:33,495 INFO L226 Difference]: Without dead ends: 82 [2020-10-12 15:34:33,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:34:33,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-12 15:34:33,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-10-12 15:34:33,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-12 15:34:33,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2020-10-12 15:34:33,515 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 14 [2020-10-12 15:34:33,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:33,515 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2020-10-12 15:34:33,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:34:33,516 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2020-10-12 15:34:33,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-12 15:34:33,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:33,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:34:33,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 15:34:33,520 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:33,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:33,521 INFO L82 PathProgramCache]: Analyzing trace with hash 283662425, now seen corresponding path program 1 times [2020-10-12 15:34:33,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:33,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549697435] [2020-10-12 15:34:33,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:33,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:33,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:33,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 15:34:33,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:33,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 15:34:33,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:33,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:34:33,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 15:34:33,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:34:33,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:33,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:33,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:33,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:33,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:33,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:33,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:34:33,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:33,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:33,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:33,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:33,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:33,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:33,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549697435] [2020-10-12 15:34:33,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:34:33,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 15:34:33,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234753820] [2020-10-12 15:34:33,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 15:34:33,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:33,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 15:34:33,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:34:33,716 INFO L87 Difference]: Start difference. First operand 82 states and 92 transitions. Second operand 4 states. [2020-10-12 15:34:33,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:33,883 INFO L93 Difference]: Finished difference Result 85 states and 96 transitions. [2020-10-12 15:34:33,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-12 15:34:33,883 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-12 15:34:33,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:33,885 INFO L225 Difference]: With dead ends: 85 [2020-10-12 15:34:33,885 INFO L226 Difference]: Without dead ends: 81 [2020-10-12 15:34:33,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:34:33,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-12 15:34:33,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2020-10-12 15:34:33,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-12 15:34:33,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2020-10-12 15:34:33,902 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 19 [2020-10-12 15:34:33,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:33,902 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2020-10-12 15:34:33,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 15:34:33,903 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2020-10-12 15:34:33,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-12 15:34:33,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:33,904 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:34:33,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 15:34:33,905 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:33,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:33,905 INFO L82 PathProgramCache]: Analyzing trace with hash 203604783, now seen corresponding path program 1 times [2020-10-12 15:34:33,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:33,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438574323] [2020-10-12 15:34:33,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:33,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:33,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:33,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:33,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 15:34:33,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:34:33,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 15:34:33,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:33,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 15:34:33,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 15:34:33,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 15:34:33,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:34,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:34,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:34,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:34,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:34,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:34,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:34:34,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:34,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:34,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:34,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:34,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:34,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:34,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [438574323] [2020-10-12 15:34:34,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:34:34,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 15:34:34,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753136551] [2020-10-12 15:34:34,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:34:34,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:34,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:34:34,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:34:34,057 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand 5 states. [2020-10-12 15:34:34,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:34,249 INFO L93 Difference]: Finished difference Result 96 states and 109 transitions. [2020-10-12 15:34:34,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:34:34,250 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-10-12 15:34:34,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:34,253 INFO L225 Difference]: With dead ends: 96 [2020-10-12 15:34:34,253 INFO L226 Difference]: Without dead ends: 76 [2020-10-12 15:34:34,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:34:34,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-12 15:34:34,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 75. [2020-10-12 15:34:34,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-12 15:34:34,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2020-10-12 15:34:34,262 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 20 [2020-10-12 15:34:34,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:34,263 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2020-10-12 15:34:34,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:34:34,263 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2020-10-12 15:34:34,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-12 15:34:34,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:34,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:34:34,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 15:34:34,264 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:34,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:34,265 INFO L82 PathProgramCache]: Analyzing trace with hash -249563430, now seen corresponding path program 1 times [2020-10-12 15:34:34,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:34,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1936775978] [2020-10-12 15:34:34,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:34,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:34,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:34,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 15:34:34,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:34,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 15:34:34,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:34,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:34:34,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-12 15:34:34,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 15:34:34,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:34,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:34,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:34,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:34,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:34,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:34,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:34:34,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:34,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:34,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:34,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:34,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:34,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:34,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1936775978] [2020-10-12 15:34:34,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:34:34,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 15:34:34,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513090114] [2020-10-12 15:34:34,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 15:34:34,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:34,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 15:34:34,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:34:34,358 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand 4 states. [2020-10-12 15:34:34,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:34,483 INFO L93 Difference]: Finished difference Result 99 states and 113 transitions. [2020-10-12 15:34:34,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-12 15:34:34,484 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-10-12 15:34:34,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:34,485 INFO L225 Difference]: With dead ends: 99 [2020-10-12 15:34:34,485 INFO L226 Difference]: Without dead ends: 97 [2020-10-12 15:34:34,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:34:34,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-12 15:34:34,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 77. [2020-10-12 15:34:34,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-12 15:34:34,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 88 transitions. [2020-10-12 15:34:34,513 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 88 transitions. Word has length 24 [2020-10-12 15:34:34,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:34,513 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 88 transitions. [2020-10-12 15:34:34,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 15:34:34,514 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 88 transitions. [2020-10-12 15:34:34,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-12 15:34:34,514 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:34,515 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:34:34,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 15:34:34,515 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:34,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:34,516 INFO L82 PathProgramCache]: Analyzing trace with hash 853457808, now seen corresponding path program 1 times [2020-10-12 15:34:34,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:34,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2049059702] [2020-10-12 15:34:34,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:34,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:34,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:34,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:34,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:34,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:34,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-12 15:34:34,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:34:34,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-12 15:34:34,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:34,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:34:34,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 15:34:34,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 15:34:34,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:34,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:34,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:34,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:34,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:34,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:34,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:34:34,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:34,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:34,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:34,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:34,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:34,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:34,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2049059702] [2020-10-12 15:34:34,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:34:34,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 15:34:34,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913448953] [2020-10-12 15:34:34,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:34:34,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:34,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:34:34,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:34:34,892 INFO L87 Difference]: Start difference. First operand 77 states and 88 transitions. Second operand 7 states. [2020-10-12 15:34:35,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:35,221 INFO L93 Difference]: Finished difference Result 183 states and 210 transitions. [2020-10-12 15:34:35,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 15:34:35,222 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2020-10-12 15:34:35,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:35,223 INFO L225 Difference]: With dead ends: 183 [2020-10-12 15:34:35,223 INFO L226 Difference]: Without dead ends: 141 [2020-10-12 15:34:35,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-12 15:34:35,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-10-12 15:34:35,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 87. [2020-10-12 15:34:35,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-12 15:34:35,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2020-10-12 15:34:35,236 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 25 [2020-10-12 15:34:35,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:35,237 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2020-10-12 15:34:35,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:34:35,237 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2020-10-12 15:34:35,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-12 15:34:35,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:35,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:34:35,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 15:34:35,238 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:35,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:35,245 INFO L82 PathProgramCache]: Analyzing trace with hash 843506704, now seen corresponding path program 1 times [2020-10-12 15:34:35,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:35,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294692236] [2020-10-12 15:34:35,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:35,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:35,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:35,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:35,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:35,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:35,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-12 15:34:35,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:34:35,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-12 15:34:35,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:35,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:34:35,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 15:34:35,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 15:34:35,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:35,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:35,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:35,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:35,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:35,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:35,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:34:35,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:35,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:35,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:35,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [294692236] [2020-10-12 15:34:35,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:34:35,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 15:34:35,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644760825] [2020-10-12 15:34:35,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:34:35,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:35,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:34:35,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:34:35,724 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand 7 states. [2020-10-12 15:34:36,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:36,178 INFO L93 Difference]: Finished difference Result 195 states and 227 transitions. [2020-10-12 15:34:36,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:34:36,179 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2020-10-12 15:34:36,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:36,180 INFO L225 Difference]: With dead ends: 195 [2020-10-12 15:34:36,180 INFO L226 Difference]: Without dead ends: 153 [2020-10-12 15:34:36,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-12 15:34:36,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-12 15:34:36,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 92. [2020-10-12 15:34:36,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-12 15:34:36,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 105 transitions. [2020-10-12 15:34:36,203 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 105 transitions. Word has length 25 [2020-10-12 15:34:36,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:36,204 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 105 transitions. [2020-10-12 15:34:36,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:34:36,204 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 105 transitions. [2020-10-12 15:34:36,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-12 15:34:36,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:36,205 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:34:36,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 15:34:36,206 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:36,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:36,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1681365399, now seen corresponding path program 1 times [2020-10-12 15:34:36,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:36,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431168862] [2020-10-12 15:34:36,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:36,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:36,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:36,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:36,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 15:34:36,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:34:36,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-12 15:34:36,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:36,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 15:34:36,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-12 15:34:36,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 15:34:36,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:34:36,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:36,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:36,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:36,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:36,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:36,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:34:36,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:36,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:36,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:36,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:36,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:34:36,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:36,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1431168862] [2020-10-12 15:34:36,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:34:36,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 15:34:36,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667971958] [2020-10-12 15:34:36,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:34:36,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:36,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:34:36,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:34:36,407 INFO L87 Difference]: Start difference. First operand 92 states and 105 transitions. Second operand 5 states. [2020-10-12 15:34:36,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:36,595 INFO L93 Difference]: Finished difference Result 102 states and 118 transitions. [2020-10-12 15:34:36,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 15:34:36,596 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-12 15:34:36,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:36,597 INFO L225 Difference]: With dead ends: 102 [2020-10-12 15:34:36,597 INFO L226 Difference]: Without dead ends: 100 [2020-10-12 15:34:36,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:34:36,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-12 15:34:36,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 95. [2020-10-12 15:34:36,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-10-12 15:34:36,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 109 transitions. [2020-10-12 15:34:36,606 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 109 transitions. Word has length 27 [2020-10-12 15:34:36,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:36,606 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 109 transitions. [2020-10-12 15:34:36,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:34:36,606 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 109 transitions. [2020-10-12 15:34:36,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-12 15:34:36,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:36,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:34:36,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 15:34:36,608 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:36,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:36,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1679518357, now seen corresponding path program 1 times [2020-10-12 15:34:36,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:36,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [425381989] [2020-10-12 15:34:36,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:36,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:36,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:36,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:36,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 15:34:36,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:34:36,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-12 15:34:36,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:34:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 15:34:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:34:36,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:36,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:36,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:36,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:36,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:36,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:36,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:36,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:34:36,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:36,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:36,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:36,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:36,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:36,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:36,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [425381989] [2020-10-12 15:34:36,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:34:36,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 15:34:36,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494260449] [2020-10-12 15:34:36,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 15:34:36,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:36,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 15:34:36,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:34:36,818 INFO L87 Difference]: Start difference. First operand 95 states and 109 transitions. Second operand 6 states. [2020-10-12 15:34:37,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:37,041 INFO L93 Difference]: Finished difference Result 159 states and 184 transitions. [2020-10-12 15:34:37,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 15:34:37,042 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-10-12 15:34:37,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:37,043 INFO L225 Difference]: With dead ends: 159 [2020-10-12 15:34:37,043 INFO L226 Difference]: Without dead ends: 98 [2020-10-12 15:34:37,044 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-12 15:34:37,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-12 15:34:37,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 92. [2020-10-12 15:34:37,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-12 15:34:37,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 105 transitions. [2020-10-12 15:34:37,051 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 105 transitions. Word has length 27 [2020-10-12 15:34:37,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:37,051 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 105 transitions. [2020-10-12 15:34:37,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 15:34:37,051 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 105 transitions. [2020-10-12 15:34:37,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-12 15:34:37,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:37,053 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:34:37,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 15:34:37,053 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:37,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:37,053 INFO L82 PathProgramCache]: Analyzing trace with hash -941335665, now seen corresponding path program 1 times [2020-10-12 15:34:37,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:37,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2091531393] [2020-10-12 15:34:37,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:37,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:37,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:37,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:37,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:37,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:37,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:37,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:37,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 15:34:37,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 15:34:37,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 527 [2020-10-12 15:34:37,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:37,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:34:37,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 15:34:37,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 15:34:37,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:37,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:37,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:37,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:37,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:37,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:37,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:34:37,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:37,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:37,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:37,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:37,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:34:37,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:37,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2091531393] [2020-10-12 15:34:37,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:34:37,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 15:34:37,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884290419] [2020-10-12 15:34:37,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 15:34:37,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:37,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 15:34:37,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-12 15:34:37,845 INFO L87 Difference]: Start difference. First operand 92 states and 105 transitions. Second operand 9 states. [2020-10-12 15:34:38,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:38,403 INFO L93 Difference]: Finished difference Result 207 states and 236 transitions. [2020-10-12 15:34:38,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:34:38,404 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-10-12 15:34:38,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:38,405 INFO L225 Difference]: With dead ends: 207 [2020-10-12 15:34:38,406 INFO L226 Difference]: Without dead ends: 205 [2020-10-12 15:34:38,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-12 15:34:38,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-12 15:34:38,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 97. [2020-10-12 15:34:38,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-12 15:34:38,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 111 transitions. [2020-10-12 15:34:38,415 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 111 transitions. Word has length 28 [2020-10-12 15:34:38,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:38,416 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 111 transitions. [2020-10-12 15:34:38,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 15:34:38,416 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 111 transitions. [2020-10-12 15:34:38,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-12 15:34:38,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:38,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:34:38,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 15:34:38,418 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:38,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:38,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1485208190, now seen corresponding path program 1 times [2020-10-12 15:34:38,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:38,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1457113519] [2020-10-12 15:34:38,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:38,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:38,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:38,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:38,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:38,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:39,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:39,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 15:34:39,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 15:34:39,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 737 [2020-10-12 15:34:39,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:39,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:34:39,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 15:34:39,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 15:34:39,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:34:39,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:39,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:39,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:39,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:39,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:39,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:34:39,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:39,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:39,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:39,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:39,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:39,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:39,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1457113519] [2020-10-12 15:34:39,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:34:39,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 15:34:39,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333894433] [2020-10-12 15:34:39,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 15:34:39,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:39,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 15:34:39,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-12 15:34:39,316 INFO L87 Difference]: Start difference. First operand 97 states and 111 transitions. Second operand 9 states. [2020-10-12 15:34:39,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:39,885 INFO L93 Difference]: Finished difference Result 205 states and 234 transitions. [2020-10-12 15:34:39,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:34:39,886 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2020-10-12 15:34:39,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:39,888 INFO L225 Difference]: With dead ends: 205 [2020-10-12 15:34:39,888 INFO L226 Difference]: Without dead ends: 203 [2020-10-12 15:34:39,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-10-12 15:34:39,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-10-12 15:34:39,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 100. [2020-10-12 15:34:39,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-12 15:34:39,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2020-10-12 15:34:39,898 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 31 [2020-10-12 15:34:39,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:39,898 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2020-10-12 15:34:39,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 15:34:39,898 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2020-10-12 15:34:39,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-12 15:34:39,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:39,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:34:39,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 15:34:39,903 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:39,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:39,903 INFO L82 PathProgramCache]: Analyzing trace with hash -2127974144, now seen corresponding path program 1 times [2020-10-12 15:34:39,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:39,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731523218] [2020-10-12 15:34:39,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:39,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:39,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:39,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:40,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:40,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:40,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:40,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:40,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:40,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:40,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-12 15:34:40,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 15:34:40,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-10-12 15:34:40,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:34:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 15:34:40,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 15:34:40,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:40,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:40,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:40,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:40,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:40,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:40,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:40,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:34:40,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:40,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:40,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:40,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:40,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:40,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:40,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731523218] [2020-10-12 15:34:40,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:34:40,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:34:40,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973510096] [2020-10-12 15:34:40,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:34:40,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:40,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:34:40,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:34:40,396 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand 7 states. [2020-10-12 15:34:40,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:40,750 INFO L93 Difference]: Finished difference Result 234 states and 270 transitions. [2020-10-12 15:34:40,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:34:40,751 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-10-12 15:34:40,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:40,752 INFO L225 Difference]: With dead ends: 234 [2020-10-12 15:34:40,752 INFO L226 Difference]: Without dead ends: 194 [2020-10-12 15:34:40,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:34:40,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-12 15:34:40,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 136. [2020-10-12 15:34:40,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-12 15:34:40,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 162 transitions. [2020-10-12 15:34:40,766 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 162 transitions. Word has length 33 [2020-10-12 15:34:40,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:40,766 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 162 transitions. [2020-10-12 15:34:40,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:34:40,766 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 162 transitions. [2020-10-12 15:34:40,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-12 15:34:40,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:40,768 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:34:40,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 15:34:40,769 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:40,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:40,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1679328926, now seen corresponding path program 1 times [2020-10-12 15:34:40,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:40,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [547527730] [2020-10-12 15:34:40,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:40,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:40,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:40,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-12 15:34:40,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:40,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 15:34:40,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:40,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:34:40,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 15:34:40,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 15:34:40,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:40,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:40,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:40,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:40,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:40,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:40,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:40,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:34:40,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:40,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:40,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:40,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:40,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:40,951 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:40,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [547527730] [2020-10-12 15:34:40,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:34:40,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 15:34:40,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132112652] [2020-10-12 15:34:40,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 15:34:40,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:40,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 15:34:40,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:34:40,953 INFO L87 Difference]: Start difference. First operand 136 states and 162 transitions. Second operand 6 states. [2020-10-12 15:34:41,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:41,333 INFO L93 Difference]: Finished difference Result 248 states and 295 transitions. [2020-10-12 15:34:41,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 15:34:41,333 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-10-12 15:34:41,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:41,334 INFO L225 Difference]: With dead ends: 248 [2020-10-12 15:34:41,334 INFO L226 Difference]: Without dead ends: 188 [2020-10-12 15:34:41,335 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:34:41,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-12 15:34:41,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 163. [2020-10-12 15:34:41,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-12 15:34:41,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 196 transitions. [2020-10-12 15:34:41,348 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 196 transitions. Word has length 33 [2020-10-12 15:34:41,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:41,349 INFO L479 AbstractCegarLoop]: Abstraction has 163 states and 196 transitions. [2020-10-12 15:34:41,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 15:34:41,349 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 196 transitions. [2020-10-12 15:34:41,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-12 15:34:41,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:41,350 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:34:41,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 15:34:41,350 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:41,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:41,351 INFO L82 PathProgramCache]: Analyzing trace with hash 270360779, now seen corresponding path program 1 times [2020-10-12 15:34:41,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:41,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [532342671] [2020-10-12 15:34:41,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:41,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:41,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:41,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:41,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 15:34:41,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:34:41,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-12 15:34:41,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:41,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:34:41,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 15:34:41,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 15:34:41,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:41,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:41,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:41,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:41,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:41,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:41,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:34:41,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:41,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:41,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:41,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:41,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:41,593 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:41,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [532342671] [2020-10-12 15:34:41,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:34:41,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:34:41,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325995738] [2020-10-12 15:34:41,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:34:41,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:41,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:34:41,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:34:41,596 INFO L87 Difference]: Start difference. First operand 163 states and 196 transitions. Second operand 7 states. [2020-10-12 15:34:41,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:41,938 INFO L93 Difference]: Finished difference Result 277 states and 326 transitions. [2020-10-12 15:34:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:34:41,938 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-10-12 15:34:41,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:41,940 INFO L225 Difference]: With dead ends: 277 [2020-10-12 15:34:41,940 INFO L226 Difference]: Without dead ends: 246 [2020-10-12 15:34:41,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 15:34:41,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-10-12 15:34:41,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 183. [2020-10-12 15:34:41,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-10-12 15:34:41,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 222 transitions. [2020-10-12 15:34:41,954 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 222 transitions. Word has length 36 [2020-10-12 15:34:41,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:41,954 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 222 transitions. [2020-10-12 15:34:41,954 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:34:41,955 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 222 transitions. [2020-10-12 15:34:41,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-12 15:34:41,955 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:41,955 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:34:41,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 15:34:41,956 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:41,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:41,956 INFO L82 PathProgramCache]: Analyzing trace with hash -620993698, now seen corresponding path program 1 times [2020-10-12 15:34:41,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:41,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662696500] [2020-10-12 15:34:41,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:41,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:41,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:42,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:42,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 15:34:42,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:34:42,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 15:34:42,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:42,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:34:42,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-12 15:34:42,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 15:34:42,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:42,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:42,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:42,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:42,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:42,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:42,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:34:42,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:42,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:42,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:42,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:42,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:42,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:42,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662696500] [2020-10-12 15:34:42,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:34:42,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 15:34:42,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654441483] [2020-10-12 15:34:42,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 15:34:42,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:42,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 15:34:42,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:34:42,046 INFO L87 Difference]: Start difference. First operand 183 states and 222 transitions. Second operand 4 states. [2020-10-12 15:34:42,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:42,168 INFO L93 Difference]: Finished difference Result 248 states and 308 transitions. [2020-10-12 15:34:42,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-12 15:34:42,169 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-10-12 15:34:42,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:42,171 INFO L225 Difference]: With dead ends: 248 [2020-10-12 15:34:42,171 INFO L226 Difference]: Without dead ends: 246 [2020-10-12 15:34:42,171 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:34:42,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-10-12 15:34:42,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 234. [2020-10-12 15:34:42,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-12 15:34:42,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 287 transitions. [2020-10-12 15:34:42,185 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 287 transitions. Word has length 36 [2020-10-12 15:34:42,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:42,185 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 287 transitions. [2020-10-12 15:34:42,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 15:34:42,186 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 287 transitions. [2020-10-12 15:34:42,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-12 15:34:42,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:42,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:34:42,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 15:34:42,187 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:42,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:42,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1632051366, now seen corresponding path program 1 times [2020-10-12 15:34:42,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:42,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [689417795] [2020-10-12 15:34:42,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:42,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:42,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:42,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 15:34:42,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:42,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 15:34:42,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:42,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:34:42,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-12 15:34:42,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 15:34:42,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:42,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:42,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:42,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:42,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:42,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:42,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:34:42,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:42,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:42,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:42,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:42,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:42,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:42,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [689417795] [2020-10-12 15:34:42,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:34:42,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 15:34:42,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968682965] [2020-10-12 15:34:42,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 15:34:42,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:42,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 15:34:42,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:34:42,250 INFO L87 Difference]: Start difference. First operand 234 states and 287 transitions. Second operand 4 states. [2020-10-12 15:34:42,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:42,387 INFO L93 Difference]: Finished difference Result 410 states and 513 transitions. [2020-10-12 15:34:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-12 15:34:42,387 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-10-12 15:34:42,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:42,389 INFO L225 Difference]: With dead ends: 410 [2020-10-12 15:34:42,389 INFO L226 Difference]: Without dead ends: 258 [2020-10-12 15:34:42,390 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:34:42,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-10-12 15:34:42,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 232. [2020-10-12 15:34:42,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-12 15:34:42,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 286 transitions. [2020-10-12 15:34:42,404 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 286 transitions. Word has length 36 [2020-10-12 15:34:42,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:42,404 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 286 transitions. [2020-10-12 15:34:42,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 15:34:42,404 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 286 transitions. [2020-10-12 15:34:42,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-12 15:34:42,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:42,405 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:34:42,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 15:34:42,405 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:42,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:42,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1340010058, now seen corresponding path program 1 times [2020-10-12 15:34:42,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:42,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [846457397] [2020-10-12 15:34:42,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:42,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:42,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:42,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:42,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:42,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:42,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:43,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:43,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:44,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:44,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:44,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:44,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:45,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:45,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-12 15:34:45,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 15:34:45,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3057 [2020-10-12 15:34:45,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:45,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 15:34:45,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 15:34:45,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 15:34:45,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:34:45,774 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 36 [2020-10-12 15:34:45,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:45,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:46,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:46,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:46,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:46,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:34:46,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:46,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:46,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:46,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:46,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:46,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:46,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [846457397] [2020-10-12 15:34:46,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:34:46,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 15:34:46,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646418474] [2020-10-12 15:34:46,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 15:34:46,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:46,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 15:34:46,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:34:46,017 INFO L87 Difference]: Start difference. First operand 232 states and 286 transitions. Second operand 12 states. [2020-10-12 15:34:47,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:47,537 INFO L93 Difference]: Finished difference Result 576 states and 713 transitions. [2020-10-12 15:34:47,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 15:34:47,538 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 40 [2020-10-12 15:34:47,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:47,541 INFO L225 Difference]: With dead ends: 576 [2020-10-12 15:34:47,542 INFO L226 Difference]: Without dead ends: 574 [2020-10-12 15:34:47,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-10-12 15:34:47,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-10-12 15:34:47,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 275. [2020-10-12 15:34:47,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2020-10-12 15:34:47,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 340 transitions. [2020-10-12 15:34:47,564 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 340 transitions. Word has length 40 [2020-10-12 15:34:47,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:47,564 INFO L479 AbstractCegarLoop]: Abstraction has 275 states and 340 transitions. [2020-10-12 15:34:47,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 15:34:47,564 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 340 transitions. [2020-10-12 15:34:47,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-12 15:34:47,565 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:47,565 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:34:47,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 15:34:47,565 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:47,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:47,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1659756179, now seen corresponding path program 1 times [2020-10-12 15:34:47,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:47,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855989522] [2020-10-12 15:34:47,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:47,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:47,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:47,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:47,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:47,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-12 15:34:47,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:34:47,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 15:34:47,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:47,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:34:47,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-12 15:34:47,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 15:34:47,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:34:47,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:34:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:34:47,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:34:47,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:34:47,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:34:47,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:34:47,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:34:47,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:34:47,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:34:47,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:34:47,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:34:47,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:34:47,664 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:34:47,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855989522] [2020-10-12 15:34:47,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:34:47,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 15:34:47,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209289508] [2020-10-12 15:34:47,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 15:34:47,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:34:47,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 15:34:47,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:34:47,667 INFO L87 Difference]: Start difference. First operand 275 states and 340 transitions. Second operand 4 states. [2020-10-12 15:34:47,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:34:47,808 INFO L93 Difference]: Finished difference Result 466 states and 583 transitions. [2020-10-12 15:34:47,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-12 15:34:47,809 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-10-12 15:34:47,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:34:47,811 INFO L225 Difference]: With dead ends: 466 [2020-10-12 15:34:47,811 INFO L226 Difference]: Without dead ends: 294 [2020-10-12 15:34:47,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:34:47,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-12 15:34:47,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 268. [2020-10-12 15:34:47,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-10-12 15:34:47,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 326 transitions. [2020-10-12 15:34:47,831 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 326 transitions. Word has length 40 [2020-10-12 15:34:47,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:34:47,831 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 326 transitions. [2020-10-12 15:34:47,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 15:34:47,831 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 326 transitions. [2020-10-12 15:34:47,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-12 15:34:47,832 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:34:47,832 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:34:47,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 15:34:47,834 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:34:47,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:34:47,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1717014481, now seen corresponding path program 1 times [2020-10-12 15:34:47,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:34:47,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786878378] [2020-10-12 15:34:47,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:34:47,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 15:34:47,847 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 15:34:47,848 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 15:34:47,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 15:34:47,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 03:34:47 BoogieIcfgContainer [2020-10-12 15:34:47,902 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 15:34:47,904 INFO L168 Benchmark]: Toolchain (without parser) took 17647.50 ms. Allocated memory was 139.5 MB in the beginning and 476.1 MB in the end (delta: 336.6 MB). Free memory was 101.3 MB in the beginning and 242.9 MB in the end (delta: -141.6 MB). Peak memory consumption was 195.0 MB. Max. memory is 7.1 GB. [2020-10-12 15:34:47,909 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-12 15:34:47,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.14 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 101.1 MB in the beginning and 168.3 MB in the end (delta: -67.3 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-10-12 15:34:47,915 INFO L168 Benchmark]: Boogie Preprocessor took 90.02 ms. Allocated memory is still 201.9 MB. Free memory was 168.3 MB in the beginning and 165.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-10-12 15:34:47,915 INFO L168 Benchmark]: RCFGBuilder took 783.78 ms. Allocated memory is still 201.9 MB. Free memory was 165.0 MB in the beginning and 108.7 MB in the end (delta: 56.3 MB). Peak memory consumption was 56.3 MB. Max. memory is 7.1 GB. [2020-10-12 15:34:47,916 INFO L168 Benchmark]: TraceAbstraction took 16084.28 ms. Allocated memory was 201.9 MB in the beginning and 476.1 MB in the end (delta: 274.2 MB). Free memory was 108.7 MB in the beginning and 242.9 MB in the end (delta: -134.2 MB). Peak memory consumption was 140.0 MB. Max. memory is 7.1 GB. [2020-10-12 15:34:47,921 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 684.14 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 101.1 MB in the beginning and 168.3 MB in the end (delta: -67.3 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.02 ms. Allocated memory is still 201.9 MB. Free memory was 168.3 MB in the beginning and 165.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 783.78 ms. Allocated memory is still 201.9 MB. Free memory was 165.0 MB in the beginning and 108.7 MB in the end (delta: 56.3 MB). Peak memory consumption was 56.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16084.28 ms. Allocated memory was 201.9 MB in the beginning and 476.1 MB in the end (delta: 274.2 MB). Free memory was 108.7 MB in the beginning and 242.9 MB in the end (delta: -134.2 MB). Peak memory consumption was 140.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1025]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L991] SLL* list = malloc(sizeof(SLL)); [L992] list->next = ((void*)0) [L993] COND FALSE !(!(list != ((void*)0))) [L993] COND FALSE !(__VERIFIER_nondet_int()) [L993] list->inner = malloc(sizeof(SLL)) [L993] EXPR list->inner [L993] list->inner->next = ((void*)0) [L993] EXPR list->inner [L993] list->inner->inner = ((void*)0) [L993] EXPR list->inner [L993] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L993] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L995] SLL* end = list; [L998] COND FALSE !(__VERIFIER_nondet_int()) [L1008] end = ((void*)0) [L1009] end = list [L1012] COND FALSE !(!(((void*)0) != end)) [L1014] COND TRUE ((void*)0) != end [L1016] int len = 0; [L1017] EXPR end->inner [L1017] SLL* inner = end->inner; [L1018] COND TRUE ((void*)0) != inner [L1020] COND TRUE len == 0 [L1021] len = 1 [L1024] COND FALSE !(!(((void*)0) != inner)) [L1025] EXPR inner->inner [L1025] COND FALSE !(!(((void*)0) == inner->inner)) [L1026] EXPR inner->next [L1026] COND FALSE !(!(((void*)0) == inner->next)) [L1027] EXPR inner->inner [L1027] inner = inner->inner [L1028] COND TRUE len == 1 [L1029] EXPR inner->inner [L1029] inner = inner->inner [L1018] COND TRUE ((void*)0) != inner [L1020] COND FALSE !(len == 0) [L1023] len = 2 [L1024] COND FALSE !(!(((void*)0) != inner)) [L1025] EXPR inner->inner [L1025] COND TRUE !(((void*)0) == inner->inner) [L1025] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 89 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.9s, OverallIterations: 20, TraceHistogramMax: 2, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1525 SDtfs, 2013 SDslu, 3131 SDs, 0 SdLazy, 3550 SolverSat, 201 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=275occurred in iteration=18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 19 MinimizatonAttempts, 942 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 8.4s InterpolantComputationTime, 556 NumberOfCodeBlocks, 556 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 497 ConstructedInterpolants, 0 QuantifiedInterpolants, 146494 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 15 PerfectInterpolantSequences, 10/16 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 incorrect! Received shutdown request...