./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/forester-heap/dll-01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/forester-heap/dll-01-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cdf63a831807312c569006a76efbe1414243703d ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:18:12,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:18:12,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:18:12,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:18:12,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:18:12,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:18:12,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:18:12,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:18:12,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:18:12,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:18:12,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:18:12,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:18:12,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:18:12,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:18:12,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:18:12,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:18:12,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:18:12,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:18:12,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:18:12,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:18:12,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:18:12,751 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:18:12,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:18:12,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:18:12,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:18:12,766 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:18:12,766 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:18:12,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:18:12,768 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:18:12,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:18:12,769 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:18:12,771 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:18:12,772 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:18:12,773 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:18:12,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:18:12,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:18:12,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:18:12,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:18:12,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:18:12,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:18:12,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:18:12,786 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2020-10-20 06:18:12,826 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:18:12,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:18:12,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:18:12,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:18:12,828 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:18:12,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:18:12,829 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:18:12,829 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:18:12,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:18:12,829 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:18:12,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:18:12,831 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 06:18:12,831 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 06:18:12,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:18:12,832 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 06:18:12,832 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:18:12,832 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:18:12,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:18:12,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:18:12,833 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:18:12,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:18:12,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:18:12,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:18:12,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:18:12,834 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:18:12,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:18:12,834 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:18:12,834 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdf63a831807312c569006a76efbe1414243703d [2020-10-20 06:18:13,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:18:13,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:18:13,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:18:13,062 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:18:13,064 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:18:13,065 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-01-1.i [2020-10-20 06:18:13,138 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd32eba7c/f67f779eebf54a6ab8f3a40cdeee8887/FLAG88561c1d1 [2020-10-20 06:18:13,745 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:18:13,746 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-01-1.i [2020-10-20 06:18:13,761 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd32eba7c/f67f779eebf54a6ab8f3a40cdeee8887/FLAG88561c1d1 [2020-10-20 06:18:13,994 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd32eba7c/f67f779eebf54a6ab8f3a40cdeee8887 [2020-10-20 06:18:13,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:18:14,004 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 06:18:14,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:18:14,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:18:14,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:18:14,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:18:13" (1/1) ... [2020-10-20 06:18:14,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a444a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:14, skipping insertion in model container [2020-10-20 06:18:14,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:18:13" (1/1) ... [2020-10-20 06:18:14,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:18:14,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:18:14,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:18:14,494 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:18:14,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:18:14,616 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:18:14,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:14 WrapperNode [2020-10-20 06:18:14,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:18:14,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:18:14,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:18:14,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:18:14,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:14" (1/1) ... [2020-10-20 06:18:14,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:14" (1/1) ... [2020-10-20 06:18:14,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:14" (1/1) ... [2020-10-20 06:18:14,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:14" (1/1) ... [2020-10-20 06:18:14,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:14" (1/1) ... [2020-10-20 06:18:14,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:14" (1/1) ... [2020-10-20 06:18:14,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:14" (1/1) ... [2020-10-20 06:18:14,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:18:14,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:18:14,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:18:14,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:18:14,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-10-20 06:18:14,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 06:18:14,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:18:14,789 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-20 06:18:14,790 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 06:18:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 06:18:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 06:18:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 06:18:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 06:18:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 06:18:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 06:18:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 06:18:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 06:18:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 06:18:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 06:18:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 06:18:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 06:18:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 06:18:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 06:18:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 06:18:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 06:18:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 06:18:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 06:18:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 06:18:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 06:18:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 06:18:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 06:18:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 06:18:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 06:18:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 06:18:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 06:18:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 06:18:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 06:18:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 06:18:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 06:18:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 06:18:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 06:18:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 06:18:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 06:18:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 06:18:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 06:18:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 06:18:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 06:18:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 06:18:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 06:18:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 06:18:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 06:18:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 06:18:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 06:18:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 06:18:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 06:18:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 06:18:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 06:18:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 06:18:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 06:18:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 06:18:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 06:18:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 06:18:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 06:18:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-20 06:18:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 06:18:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 06:18:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 06:18:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 06:18:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 06:18:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 06:18:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 06:18:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 06:18:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 06:18:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 06:18:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 06:18:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 06:18:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 06:18:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 06:18:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 06:18:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 06:18:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 06:18:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 06:18:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 06:18:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 06:18:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 06:18:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 06:18:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 06:18:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 06:18:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 06:18:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 06:18:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 06:18:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 06:18:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 06:18:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 06:18:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 06:18:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 06:18:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 06:18:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 06:18:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 06:18:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 06:18:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 06:18:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 06:18:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 06:18:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 06:18:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 06:18:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 06:18:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 06:18:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 06:18:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 06:18:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 06:18:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 06:18:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 06:18:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 06:18:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-20 06:18:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-20 06:18:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-20 06:18:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-20 06:18:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:18:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 06:18:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 06:18:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 06:18:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 06:18:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:18:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 06:18:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 06:18:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:18:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:18:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 06:18:15,709 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:18:15,710 INFO L298 CfgBuilder]: Removed 30 assume(true) statements. [2020-10-20 06:18:15,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:18:15 BoogieIcfgContainer [2020-10-20 06:18:15,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:18:15,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:18:15,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:18:15,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:18:15,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:18:13" (1/3) ... [2020-10-20 06:18:15,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0e555c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:18:15, skipping insertion in model container [2020-10-20 06:18:15,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:14" (2/3) ... [2020-10-20 06:18:15,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0e555c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:18:15, skipping insertion in model container [2020-10-20 06:18:15,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:18:15" (3/3) ... [2020-10-20 06:18:15,722 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-01-1.i [2020-10-20 06:18:15,734 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:18:15,743 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 72 error locations. [2020-10-20 06:18:15,757 INFO L253 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2020-10-20 06:18:15,775 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:18:15,776 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 06:18:15,776 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:18:15,776 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:18:15,776 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:18:15,777 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:18:15,777 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:18:15,777 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:18:15,802 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-20 06:18:15,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 06:18:15,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:15,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:15,814 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:15,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:15,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1936971074, now seen corresponding path program 1 times [2020-10-20 06:18:15,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:15,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823941760] [2020-10-20 06:18:15,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:16,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:16,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:16,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:16,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823941760] [2020-10-20 06:18:16,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:16,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:18:16,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577573640] [2020-10-20 06:18:16,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:18:16,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:16,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:18:16,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:18:16,133 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2020-10-20 06:18:16,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:16,632 INFO L93 Difference]: Finished difference Result 192 states and 214 transitions. [2020-10-20 06:18:16,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:18:16,635 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 06:18:16,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:16,650 INFO L225 Difference]: With dead ends: 192 [2020-10-20 06:18:16,651 INFO L226 Difference]: Without dead ends: 188 [2020-10-20 06:18:16,653 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:18:16,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-20 06:18:16,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 183. [2020-10-20 06:18:16,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-10-20 06:18:16,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 207 transitions. [2020-10-20 06:18:16,719 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 207 transitions. Word has length 7 [2020-10-20 06:18:16,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:16,720 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 207 transitions. [2020-10-20 06:18:16,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:18:16,720 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 207 transitions. [2020-10-20 06:18:16,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 06:18:16,721 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:16,721 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:16,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 06:18:16,722 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:16,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:16,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1936971075, now seen corresponding path program 1 times [2020-10-20 06:18:16,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:16,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542788978] [2020-10-20 06:18:16,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:16,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:16,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:16,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:16,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542788978] [2020-10-20 06:18:16,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:16,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:18:16,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650288874] [2020-10-20 06:18:16,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:18:16,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:16,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:18:16,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:18:16,881 INFO L87 Difference]: Start difference. First operand 183 states and 207 transitions. Second operand 4 states. [2020-10-20 06:18:17,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:17,351 INFO L93 Difference]: Finished difference Result 209 states and 235 transitions. [2020-10-20 06:18:17,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:18:17,353 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 06:18:17,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:17,355 INFO L225 Difference]: With dead ends: 209 [2020-10-20 06:18:17,355 INFO L226 Difference]: Without dead ends: 209 [2020-10-20 06:18:17,356 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:18:17,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-10-20 06:18:17,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 192. [2020-10-20 06:18:17,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-10-20 06:18:17,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 227 transitions. [2020-10-20 06:18:17,372 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 227 transitions. Word has length 7 [2020-10-20 06:18:17,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:17,372 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 227 transitions. [2020-10-20 06:18:17,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:18:17,373 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 227 transitions. [2020-10-20 06:18:17,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 06:18:17,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:17,373 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:17,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 06:18:17,374 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:17,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:17,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1535588995, now seen corresponding path program 1 times [2020-10-20 06:18:17,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:17,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632770274] [2020-10-20 06:18:17,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:17,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:17,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:17,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632770274] [2020-10-20 06:18:17,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:17,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:18:17,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154038740] [2020-10-20 06:18:17,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:18:17,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:17,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:18:17,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:18:17,444 INFO L87 Difference]: Start difference. First operand 192 states and 227 transitions. Second operand 4 states. [2020-10-20 06:18:17,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:17,775 INFO L93 Difference]: Finished difference Result 205 states and 230 transitions. [2020-10-20 06:18:17,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:18:17,777 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-20 06:18:17,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:17,779 INFO L225 Difference]: With dead ends: 205 [2020-10-20 06:18:17,779 INFO L226 Difference]: Without dead ends: 205 [2020-10-20 06:18:17,780 INFO L677 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 [2020-10-20 06:18:17,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-20 06:18:17,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 191. [2020-10-20 06:18:17,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-10-20 06:18:17,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 224 transitions. [2020-10-20 06:18:17,810 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 224 transitions. Word has length 12 [2020-10-20 06:18:17,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:17,811 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 224 transitions. [2020-10-20 06:18:17,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:18:17,811 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 224 transitions. [2020-10-20 06:18:17,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 06:18:17,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:17,816 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:17,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 06:18:17,817 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:17,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:17,820 INFO L82 PathProgramCache]: Analyzing trace with hash -945873449, now seen corresponding path program 1 times [2020-10-20 06:18:17,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:17,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389643612] [2020-10-20 06:18:17,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:17,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:17,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:17,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389643612] [2020-10-20 06:18:17,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:17,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:18:17,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430161230] [2020-10-20 06:18:17,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:18:17,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:17,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:18:17,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:18:17,948 INFO L87 Difference]: Start difference. First operand 191 states and 224 transitions. Second operand 6 states. [2020-10-20 06:18:18,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:18,747 INFO L93 Difference]: Finished difference Result 326 states and 379 transitions. [2020-10-20 06:18:18,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:18:18,748 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-20 06:18:18,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:18,751 INFO L225 Difference]: With dead ends: 326 [2020-10-20 06:18:18,751 INFO L226 Difference]: Without dead ends: 326 [2020-10-20 06:18:18,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:18:18,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-10-20 06:18:18,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 190. [2020-10-20 06:18:18,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-10-20 06:18:18,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 223 transitions. [2020-10-20 06:18:18,764 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 223 transitions. Word has length 15 [2020-10-20 06:18:18,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:18,764 INFO L481 AbstractCegarLoop]: Abstraction has 190 states and 223 transitions. [2020-10-20 06:18:18,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:18:18,765 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 223 transitions. [2020-10-20 06:18:18,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 06:18:18,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:18,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:18,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 06:18:18,766 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:18,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:18,766 INFO L82 PathProgramCache]: Analyzing trace with hash -945873448, now seen corresponding path program 1 times [2020-10-20 06:18:18,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:18,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111412986] [2020-10-20 06:18:18,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:18,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:18,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:18,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111412986] [2020-10-20 06:18:18,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:18,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:18:18,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23994058] [2020-10-20 06:18:18,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:18:18,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:18,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:18:18,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:18:18,870 INFO L87 Difference]: Start difference. First operand 190 states and 223 transitions. Second operand 6 states. [2020-10-20 06:18:19,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:19,693 INFO L93 Difference]: Finished difference Result 353 states and 419 transitions. [2020-10-20 06:18:19,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:18:19,694 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-20 06:18:19,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:19,696 INFO L225 Difference]: With dead ends: 353 [2020-10-20 06:18:19,697 INFO L226 Difference]: Without dead ends: 353 [2020-10-20 06:18:19,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:18:19,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2020-10-20 06:18:19,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 189. [2020-10-20 06:18:19,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-20 06:18:19,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 222 transitions. [2020-10-20 06:18:19,709 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 222 transitions. Word has length 15 [2020-10-20 06:18:19,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:19,709 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 222 transitions. [2020-10-20 06:18:19,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:18:19,709 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 222 transitions. [2020-10-20 06:18:19,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 06:18:19,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:19,710 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:19,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 06:18:19,711 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:19,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:19,712 INFO L82 PathProgramCache]: Analyzing trace with hash 764533764, now seen corresponding path program 1 times [2020-10-20 06:18:19,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:19,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690391346] [2020-10-20 06:18:19,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:19,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:19,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:19,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690391346] [2020-10-20 06:18:19,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:19,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 06:18:19,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820902763] [2020-10-20 06:18:19,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 06:18:19,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:19,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 06:18:19,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:18:19,865 INFO L87 Difference]: Start difference. First operand 189 states and 222 transitions. Second operand 9 states. [2020-10-20 06:18:21,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:21,067 INFO L93 Difference]: Finished difference Result 325 states and 377 transitions. [2020-10-20 06:18:21,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 06:18:21,068 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-10-20 06:18:21,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:21,071 INFO L225 Difference]: With dead ends: 325 [2020-10-20 06:18:21,071 INFO L226 Difference]: Without dead ends: 325 [2020-10-20 06:18:21,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-20 06:18:21,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-10-20 06:18:21,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 188. [2020-10-20 06:18:21,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-20 06:18:21,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 221 transitions. [2020-10-20 06:18:21,081 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 221 transitions. Word has length 18 [2020-10-20 06:18:21,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:21,081 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 221 transitions. [2020-10-20 06:18:21,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 06:18:21,082 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 221 transitions. [2020-10-20 06:18:21,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 06:18:21,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:21,083 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:21,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 06:18:21,083 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:21,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:21,084 INFO L82 PathProgramCache]: Analyzing trace with hash 764533765, now seen corresponding path program 1 times [2020-10-20 06:18:21,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:21,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183589981] [2020-10-20 06:18:21,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:21,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:21,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:21,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183589981] [2020-10-20 06:18:21,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:21,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 06:18:21,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118466566] [2020-10-20 06:18:21,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 06:18:21,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:21,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 06:18:21,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:18:21,240 INFO L87 Difference]: Start difference. First operand 188 states and 221 transitions. Second operand 9 states. [2020-10-20 06:18:22,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:22,492 INFO L93 Difference]: Finished difference Result 326 states and 378 transitions. [2020-10-20 06:18:22,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 06:18:22,493 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-10-20 06:18:22,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:22,496 INFO L225 Difference]: With dead ends: 326 [2020-10-20 06:18:22,496 INFO L226 Difference]: Without dead ends: 326 [2020-10-20 06:18:22,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-20 06:18:22,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-10-20 06:18:22,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 187. [2020-10-20 06:18:22,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-10-20 06:18:22,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 220 transitions. [2020-10-20 06:18:22,508 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 220 transitions. Word has length 18 [2020-10-20 06:18:22,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:22,508 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 220 transitions. [2020-10-20 06:18:22,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 06:18:22,508 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 220 transitions. [2020-10-20 06:18:22,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-20 06:18:22,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:22,509 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] [2020-10-20 06:18:22,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 06:18:22,510 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:22,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:22,510 INFO L82 PathProgramCache]: Analyzing trace with hash -987995704, now seen corresponding path program 1 times [2020-10-20 06:18:22,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:22,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640158520] [2020-10-20 06:18:22,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:22,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:22,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:22,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640158520] [2020-10-20 06:18:22,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:22,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:18:22,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025484167] [2020-10-20 06:18:22,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:18:22,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:22,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:18:22,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:18:22,564 INFO L87 Difference]: Start difference. First operand 187 states and 220 transitions. Second operand 4 states. [2020-10-20 06:18:22,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:22,822 INFO L93 Difference]: Finished difference Result 188 states and 221 transitions. [2020-10-20 06:18:22,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:18:22,822 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-20 06:18:22,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:22,824 INFO L225 Difference]: With dead ends: 188 [2020-10-20 06:18:22,824 INFO L226 Difference]: Without dead ends: 188 [2020-10-20 06:18:22,825 INFO L677 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 [2020-10-20 06:18:22,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-20 06:18:22,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2020-10-20 06:18:22,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-20 06:18:22,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 221 transitions. [2020-10-20 06:18:22,830 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 221 transitions. Word has length 20 [2020-10-20 06:18:22,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:22,830 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 221 transitions. [2020-10-20 06:18:22,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:18:22,830 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 221 transitions. [2020-10-20 06:18:22,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 06:18:22,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:22,831 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] [2020-10-20 06:18:22,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 06:18:22,832 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:22,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:22,832 INFO L82 PathProgramCache]: Analyzing trace with hash 952139725, now seen corresponding path program 1 times [2020-10-20 06:18:22,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:22,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846134357] [2020-10-20 06:18:22,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:22,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:22,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:22,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846134357] [2020-10-20 06:18:22,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:22,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 06:18:22,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74179703] [2020-10-20 06:18:22,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 06:18:22,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:22,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 06:18:22,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:18:22,940 INFO L87 Difference]: Start difference. First operand 188 states and 221 transitions. Second operand 8 states. [2020-10-20 06:18:23,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:23,471 INFO L93 Difference]: Finished difference Result 268 states and 314 transitions. [2020-10-20 06:18:23,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 06:18:23,471 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-10-20 06:18:23,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:23,474 INFO L225 Difference]: With dead ends: 268 [2020-10-20 06:18:23,474 INFO L226 Difference]: Without dead ends: 268 [2020-10-20 06:18:23,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-20 06:18:23,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-10-20 06:18:23,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 186. [2020-10-20 06:18:23,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-10-20 06:18:23,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 218 transitions. [2020-10-20 06:18:23,480 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 218 transitions. Word has length 22 [2020-10-20 06:18:23,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:23,481 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 218 transitions. [2020-10-20 06:18:23,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 06:18:23,481 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 218 transitions. [2020-10-20 06:18:23,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 06:18:23,482 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:23,482 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] [2020-10-20 06:18:23,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 06:18:23,482 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:23,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:23,483 INFO L82 PathProgramCache]: Analyzing trace with hash -496816356, now seen corresponding path program 1 times [2020-10-20 06:18:23,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:23,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94857511] [2020-10-20 06:18:23,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:23,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:23,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:23,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94857511] [2020-10-20 06:18:23,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:23,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 06:18:23,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956958780] [2020-10-20 06:18:23,557 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:18:23,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:23,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:18:23,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:18:23,558 INFO L87 Difference]: Start difference. First operand 186 states and 218 transitions. Second operand 6 states. [2020-10-20 06:18:23,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:23,958 INFO L93 Difference]: Finished difference Result 269 states and 314 transitions. [2020-10-20 06:18:23,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:18:23,960 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-10-20 06:18:23,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:23,962 INFO L225 Difference]: With dead ends: 269 [2020-10-20 06:18:23,962 INFO L226 Difference]: Without dead ends: 269 [2020-10-20 06:18:23,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:18:23,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-10-20 06:18:23,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 189. [2020-10-20 06:18:23,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-20 06:18:23,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 221 transitions. [2020-10-20 06:18:23,968 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 221 transitions. Word has length 22 [2020-10-20 06:18:23,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:23,968 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 221 transitions. [2020-10-20 06:18:23,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:18:23,969 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 221 transitions. [2020-10-20 06:18:23,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 06:18:23,969 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:23,970 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] [2020-10-20 06:18:23,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 06:18:23,970 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:23,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:23,971 INFO L82 PathProgramCache]: Analyzing trace with hash -42475551, now seen corresponding path program 1 times [2020-10-20 06:18:23,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:23,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812499407] [2020-10-20 06:18:23,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:24,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:24,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:24,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812499407] [2020-10-20 06:18:24,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:24,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:18:24,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663787871] [2020-10-20 06:18:24,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:18:24,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:24,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:18:24,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:18:24,041 INFO L87 Difference]: Start difference. First operand 189 states and 221 transitions. Second operand 5 states. [2020-10-20 06:18:24,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:24,408 INFO L93 Difference]: Finished difference Result 184 states and 214 transitions. [2020-10-20 06:18:24,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:18:24,408 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-20 06:18:24,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:24,410 INFO L225 Difference]: With dead ends: 184 [2020-10-20 06:18:24,410 INFO L226 Difference]: Without dead ends: 184 [2020-10-20 06:18:24,410 INFO L677 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 [2020-10-20 06:18:24,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-10-20 06:18:24,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 179. [2020-10-20 06:18:24,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-10-20 06:18:24,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 211 transitions. [2020-10-20 06:18:24,415 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 211 transitions. Word has length 24 [2020-10-20 06:18:24,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:24,416 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 211 transitions. [2020-10-20 06:18:24,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:18:24,416 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 211 transitions. [2020-10-20 06:18:24,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 06:18:24,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:24,417 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] [2020-10-20 06:18:24,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 06:18:24,417 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:24,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:24,418 INFO L82 PathProgramCache]: Analyzing trace with hash -42475550, now seen corresponding path program 1 times [2020-10-20 06:18:24,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:24,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235906597] [2020-10-20 06:18:24,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:24,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:24,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:24,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:24,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235906597] [2020-10-20 06:18:24,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:24,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:18:24,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792364968] [2020-10-20 06:18:24,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:18:24,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:24,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:18:24,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:18:24,522 INFO L87 Difference]: Start difference. First operand 179 states and 211 transitions. Second operand 5 states. [2020-10-20 06:18:24,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:24,931 INFO L93 Difference]: Finished difference Result 232 states and 264 transitions. [2020-10-20 06:18:24,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:18:24,931 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-20 06:18:24,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:24,934 INFO L225 Difference]: With dead ends: 232 [2020-10-20 06:18:24,934 INFO L226 Difference]: Without dead ends: 232 [2020-10-20 06:18:24,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:18:24,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-20 06:18:24,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 202. [2020-10-20 06:18:24,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-20 06:18:24,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 248 transitions. [2020-10-20 06:18:24,940 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 248 transitions. Word has length 24 [2020-10-20 06:18:24,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:24,940 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 248 transitions. [2020-10-20 06:18:24,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:18:24,941 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 248 transitions. [2020-10-20 06:18:24,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 06:18:24,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:24,942 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] [2020-10-20 06:18:24,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-20 06:18:24,942 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:24,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:24,943 INFO L82 PathProgramCache]: Analyzing trace with hash 2130670948, now seen corresponding path program 1 times [2020-10-20 06:18:24,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:24,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455335875] [2020-10-20 06:18:24,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:25,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:25,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:25,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455335875] [2020-10-20 06:18:25,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:25,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:18:25,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131157235] [2020-10-20 06:18:25,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:18:25,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:25,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:18:25,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:18:25,013 INFO L87 Difference]: Start difference. First operand 202 states and 248 transitions. Second operand 6 states. [2020-10-20 06:18:25,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:25,509 INFO L93 Difference]: Finished difference Result 284 states and 354 transitions. [2020-10-20 06:18:25,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:18:25,510 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-10-20 06:18:25,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:25,512 INFO L225 Difference]: With dead ends: 284 [2020-10-20 06:18:25,512 INFO L226 Difference]: Without dead ends: 284 [2020-10-20 06:18:25,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:18:25,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-10-20 06:18:25,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 201. [2020-10-20 06:18:25,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-10-20 06:18:25,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 246 transitions. [2020-10-20 06:18:25,526 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 246 transitions. Word has length 26 [2020-10-20 06:18:25,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:25,526 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 246 transitions. [2020-10-20 06:18:25,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:18:25,526 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 246 transitions. [2020-10-20 06:18:25,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 06:18:25,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:25,528 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] [2020-10-20 06:18:25,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-20 06:18:25,528 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:25,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:25,528 INFO L82 PathProgramCache]: Analyzing trace with hash 2130670949, now seen corresponding path program 1 times [2020-10-20 06:18:25,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:25,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380965214] [2020-10-20 06:18:25,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:25,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:25,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:25,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380965214] [2020-10-20 06:18:25,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:25,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:18:25,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981220204] [2020-10-20 06:18:25,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:18:25,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:25,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:18:25,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:18:25,662 INFO L87 Difference]: Start difference. First operand 201 states and 246 transitions. Second operand 6 states. [2020-10-20 06:18:26,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:26,237 INFO L93 Difference]: Finished difference Result 311 states and 391 transitions. [2020-10-20 06:18:26,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:18:26,242 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-10-20 06:18:26,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:26,244 INFO L225 Difference]: With dead ends: 311 [2020-10-20 06:18:26,244 INFO L226 Difference]: Without dead ends: 311 [2020-10-20 06:18:26,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:18:26,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2020-10-20 06:18:26,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 200. [2020-10-20 06:18:26,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-10-20 06:18:26,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 244 transitions. [2020-10-20 06:18:26,252 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 244 transitions. Word has length 26 [2020-10-20 06:18:26,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:26,252 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 244 transitions. [2020-10-20 06:18:26,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:18:26,252 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 244 transitions. [2020-10-20 06:18:26,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-20 06:18:26,253 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:26,253 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] [2020-10-20 06:18:26,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-20 06:18:26,254 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:26,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:26,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1073726397, now seen corresponding path program 1 times [2020-10-20 06:18:26,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:26,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122461969] [2020-10-20 06:18:26,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:26,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:26,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:26,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122461969] [2020-10-20 06:18:26,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:26,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:18:26,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428000438] [2020-10-20 06:18:26,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:18:26,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:26,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:18:26,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:18:26,331 INFO L87 Difference]: Start difference. First operand 200 states and 244 transitions. Second operand 5 states. [2020-10-20 06:18:26,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:26,644 INFO L93 Difference]: Finished difference Result 224 states and 254 transitions. [2020-10-20 06:18:26,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:18:26,644 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-20 06:18:26,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:26,646 INFO L225 Difference]: With dead ends: 224 [2020-10-20 06:18:26,646 INFO L226 Difference]: Without dead ends: 224 [2020-10-20 06:18:26,646 INFO L677 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 [2020-10-20 06:18:26,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-10-20 06:18:26,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 199. [2020-10-20 06:18:26,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-10-20 06:18:26,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 241 transitions. [2020-10-20 06:18:26,651 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 241 transitions. Word has length 28 [2020-10-20 06:18:26,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:26,652 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 241 transitions. [2020-10-20 06:18:26,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:18:26,652 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 241 transitions. [2020-10-20 06:18:26,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-20 06:18:26,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:26,653 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] [2020-10-20 06:18:26,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-20 06:18:26,653 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:26,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:26,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1575328934, now seen corresponding path program 1 times [2020-10-20 06:18:26,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:26,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761265229] [2020-10-20 06:18:26,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:26,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:26,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:26,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761265229] [2020-10-20 06:18:26,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:26,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-20 06:18:26,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154759573] [2020-10-20 06:18:26,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 06:18:26,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:26,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 06:18:26,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:18:26,770 INFO L87 Difference]: Start difference. First operand 199 states and 241 transitions. Second operand 10 states. [2020-10-20 06:18:27,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:27,477 INFO L93 Difference]: Finished difference Result 199 states and 240 transitions. [2020-10-20 06:18:27,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 06:18:27,478 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2020-10-20 06:18:27,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:27,480 INFO L225 Difference]: With dead ends: 199 [2020-10-20 06:18:27,480 INFO L226 Difference]: Without dead ends: 199 [2020-10-20 06:18:27,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-20 06:18:27,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-10-20 06:18:27,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 198. [2020-10-20 06:18:27,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-20 06:18:27,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 240 transitions. [2020-10-20 06:18:27,485 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 240 transitions. Word has length 30 [2020-10-20 06:18:27,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:27,485 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 240 transitions. [2020-10-20 06:18:27,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 06:18:27,485 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 240 transitions. [2020-10-20 06:18:27,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-20 06:18:27,486 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:27,486 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] [2020-10-20 06:18:27,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-20 06:18:27,487 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:27,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:27,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1575328935, now seen corresponding path program 1 times [2020-10-20 06:18:27,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:27,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930101052] [2020-10-20 06:18:27,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:27,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:27,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:27,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930101052] [2020-10-20 06:18:27,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:27,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-20 06:18:27,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202728437] [2020-10-20 06:18:27,643 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-20 06:18:27,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:27,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-20 06:18:27,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-20 06:18:27,644 INFO L87 Difference]: Start difference. First operand 198 states and 240 transitions. Second operand 11 states. [2020-10-20 06:18:28,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:28,555 INFO L93 Difference]: Finished difference Result 191 states and 232 transitions. [2020-10-20 06:18:28,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-20 06:18:28,556 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2020-10-20 06:18:28,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:28,558 INFO L225 Difference]: With dead ends: 191 [2020-10-20 06:18:28,558 INFO L226 Difference]: Without dead ends: 191 [2020-10-20 06:18:28,558 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-10-20 06:18:28,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-10-20 06:18:28,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 181. [2020-10-20 06:18:28,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-20 06:18:28,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 222 transitions. [2020-10-20 06:18:28,563 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 222 transitions. Word has length 30 [2020-10-20 06:18:28,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:28,563 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 222 transitions. [2020-10-20 06:18:28,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-20 06:18:28,564 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 222 transitions. [2020-10-20 06:18:28,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-20 06:18:28,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:28,564 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] [2020-10-20 06:18:28,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-20 06:18:28,565 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:28,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:28,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1179979243, now seen corresponding path program 1 times [2020-10-20 06:18:28,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:28,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892094741] [2020-10-20 06:18:28,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:28,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:28,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:28,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892094741] [2020-10-20 06:18:28,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:28,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:18:28,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176561297] [2020-10-20 06:18:28,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:18:28,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:28,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:18:28,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:18:28,622 INFO L87 Difference]: Start difference. First operand 181 states and 222 transitions. Second operand 4 states. [2020-10-20 06:18:28,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:28,836 INFO L93 Difference]: Finished difference Result 251 states and 310 transitions. [2020-10-20 06:18:28,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:18:28,837 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-10-20 06:18:28,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:28,838 INFO L225 Difference]: With dead ends: 251 [2020-10-20 06:18:28,838 INFO L226 Difference]: Without dead ends: 251 [2020-10-20 06:18:28,839 INFO L677 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 [2020-10-20 06:18:28,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-10-20 06:18:28,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 187. [2020-10-20 06:18:28,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-10-20 06:18:28,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 230 transitions. [2020-10-20 06:18:28,848 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 230 transitions. Word has length 34 [2020-10-20 06:18:28,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:28,848 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 230 transitions. [2020-10-20 06:18:28,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:18:28,848 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 230 transitions. [2020-10-20 06:18:28,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-20 06:18:28,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:28,850 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] [2020-10-20 06:18:28,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-20 06:18:28,850 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:28,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:28,851 INFO L82 PathProgramCache]: Analyzing trace with hash -2096287408, now seen corresponding path program 1 times [2020-10-20 06:18:28,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:28,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203297760] [2020-10-20 06:18:28,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:28,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:28,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:28,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203297760] [2020-10-20 06:18:28,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:28,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-20 06:18:29,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583928471] [2020-10-20 06:18:29,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-20 06:18:29,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:29,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-20 06:18:29,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-20 06:18:29,001 INFO L87 Difference]: Start difference. First operand 187 states and 230 transitions. Second operand 11 states. [2020-10-20 06:18:29,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:29,715 INFO L93 Difference]: Finished difference Result 195 states and 236 transitions. [2020-10-20 06:18:29,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-20 06:18:29,716 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 34 [2020-10-20 06:18:29,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:29,717 INFO L225 Difference]: With dead ends: 195 [2020-10-20 06:18:29,717 INFO L226 Difference]: Without dead ends: 195 [2020-10-20 06:18:29,718 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-10-20 06:18:29,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-10-20 06:18:29,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 185. [2020-10-20 06:18:29,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-10-20 06:18:29,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 226 transitions. [2020-10-20 06:18:29,723 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 226 transitions. Word has length 34 [2020-10-20 06:18:29,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:29,723 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 226 transitions. [2020-10-20 06:18:29,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-20 06:18:29,723 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 226 transitions. [2020-10-20 06:18:29,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-20 06:18:29,724 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:29,724 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] [2020-10-20 06:18:29,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-20 06:18:29,724 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:29,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:29,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1179498805, now seen corresponding path program 1 times [2020-10-20 06:18:29,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:29,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227298511] [2020-10-20 06:18:29,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:29,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:29,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:29,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227298511] [2020-10-20 06:18:29,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:29,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-20 06:18:29,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642975722] [2020-10-20 06:18:29,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 06:18:29,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:29,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 06:18:29,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:18:29,851 INFO L87 Difference]: Start difference. First operand 185 states and 226 transitions. Second operand 9 states. [2020-10-20 06:18:30,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:30,448 INFO L93 Difference]: Finished difference Result 282 states and 339 transitions. [2020-10-20 06:18:30,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 06:18:30,448 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2020-10-20 06:18:30,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:30,451 INFO L225 Difference]: With dead ends: 282 [2020-10-20 06:18:30,451 INFO L226 Difference]: Without dead ends: 282 [2020-10-20 06:18:30,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2020-10-20 06:18:30,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-20 06:18:30,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 197. [2020-10-20 06:18:30,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-10-20 06:18:30,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 239 transitions. [2020-10-20 06:18:30,457 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 239 transitions. Word has length 34 [2020-10-20 06:18:30,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:30,457 INFO L481 AbstractCegarLoop]: Abstraction has 197 states and 239 transitions. [2020-10-20 06:18:30,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 06:18:30,457 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 239 transitions. [2020-10-20 06:18:30,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-20 06:18:30,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:30,458 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] [2020-10-20 06:18:30,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-20 06:18:30,458 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:30,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:30,459 INFO L82 PathProgramCache]: Analyzing trace with hash 92717896, now seen corresponding path program 1 times [2020-10-20 06:18:30,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:30,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910952948] [2020-10-20 06:18:30,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:30,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:30,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:30,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910952948] [2020-10-20 06:18:30,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776657389] [2020-10-20 06:18:30,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:18:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:30,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 22 conjunts are in the unsatisfiable core [2020-10-20 06:18:30,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:18:30,789 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-20 06:18:30,789 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:18:30,806 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:18:30,810 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-20 06:18:30,810 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 06:18:30,817 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:18:30,818 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:18:30,818 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2020-10-20 06:18:30,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 06:18:30,854 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-10-20 06:18:30,855 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:18:30,872 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:18:30,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 06:18:30,878 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-10-20 06:18:30,879 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 06:18:30,889 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:18:30,890 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:18:30,890 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:47, output treesize:39 [2020-10-20 06:18:30,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 06:18:30,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 06:18:30,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 06:18:30,929 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2020-10-20 06:18:30,930 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:18:30,947 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:18:30,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 06:18:30,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 06:18:30,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 06:18:30,955 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2020-10-20 06:18:30,956 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 06:18:30,971 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:18:30,972 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:18:30,972 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:65, output treesize:57 [2020-10-20 06:18:31,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 06:18:31,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 06:18:31,176 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-20 06:18:31,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 06:18:31,179 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2020-10-20 06:18:31,181 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:18:31,216 INFO L625 ElimStorePlain]: treesize reduction 3, result has 93.8 percent of original size [2020-10-20 06:18:31,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 06:18:31,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 06:18:31,223 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-20 06:18:31,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 06:18:31,225 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:18:31,226 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33 treesize of output 16 [2020-10-20 06:18:31,228 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 06:18:31,254 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:18:31,263 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:18:31,264 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:77, output treesize:7 [2020-10-20 06:18:31,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:31,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:18:31,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 12 [2020-10-20 06:18:31,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489813039] [2020-10-20 06:18:31,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 06:18:31,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:31,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 06:18:31,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-20 06:18:31,281 INFO L87 Difference]: Start difference. First operand 197 states and 239 transitions. Second operand 12 states. [2020-10-20 06:18:34,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:34,651 INFO L93 Difference]: Finished difference Result 327 states and 380 transitions. [2020-10-20 06:18:34,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-20 06:18:34,652 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 36 [2020-10-20 06:18:34,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:34,654 INFO L225 Difference]: With dead ends: 327 [2020-10-20 06:18:34,654 INFO L226 Difference]: Without dead ends: 327 [2020-10-20 06:18:34,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-10-20 06:18:34,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-20 06:18:34,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 225. [2020-10-20 06:18:34,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-10-20 06:18:34,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 281 transitions. [2020-10-20 06:18:34,672 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 281 transitions. Word has length 36 [2020-10-20 06:18:34,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:34,673 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 281 transitions. [2020-10-20 06:18:34,673 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 06:18:34,673 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 281 transitions. [2020-10-20 06:18:34,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-20 06:18:34,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:34,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:34,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-10-20 06:18:34,889 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:34,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:34,890 INFO L82 PathProgramCache]: Analyzing trace with hash -971694423, now seen corresponding path program 1 times [2020-10-20 06:18:34,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:34,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124511148] [2020-10-20 06:18:34,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:35,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:35,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:35,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124511148] [2020-10-20 06:18:35,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:35,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-20 06:18:35,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377737443] [2020-10-20 06:18:35,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 06:18:35,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:35,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 06:18:35,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-20 06:18:35,104 INFO L87 Difference]: Start difference. First operand 225 states and 281 transitions. Second operand 12 states. [2020-10-20 06:18:36,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:36,464 INFO L93 Difference]: Finished difference Result 445 states and 529 transitions. [2020-10-20 06:18:36,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-20 06:18:36,464 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2020-10-20 06:18:36,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:36,468 INFO L225 Difference]: With dead ends: 445 [2020-10-20 06:18:36,469 INFO L226 Difference]: Without dead ends: 445 [2020-10-20 06:18:36,469 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2020-10-20 06:18:36,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-10-20 06:18:36,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 226. [2020-10-20 06:18:36,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-20 06:18:36,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 280 transitions. [2020-10-20 06:18:36,478 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 280 transitions. Word has length 38 [2020-10-20 06:18:36,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:36,478 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 280 transitions. [2020-10-20 06:18:36,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 06:18:36,478 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 280 transitions. [2020-10-20 06:18:36,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-20 06:18:36,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:36,479 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:36,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-20 06:18:36,479 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:36,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:36,480 INFO L82 PathProgramCache]: Analyzing trace with hash -971694422, now seen corresponding path program 1 times [2020-10-20 06:18:36,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:36,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64810168] [2020-10-20 06:18:36,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:36,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:36,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:36,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:36,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64810168] [2020-10-20 06:18:36,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:36,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-20 06:18:36,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923550012] [2020-10-20 06:18:36,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 06:18:36,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:36,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 06:18:36,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-20 06:18:36,682 INFO L87 Difference]: Start difference. First operand 226 states and 280 transitions. Second operand 12 states. [2020-10-20 06:18:38,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:38,318 INFO L93 Difference]: Finished difference Result 495 states and 585 transitions. [2020-10-20 06:18:38,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-20 06:18:38,319 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2020-10-20 06:18:38,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:38,322 INFO L225 Difference]: With dead ends: 495 [2020-10-20 06:18:38,322 INFO L226 Difference]: Without dead ends: 495 [2020-10-20 06:18:38,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2020-10-20 06:18:38,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-10-20 06:18:38,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 232. [2020-10-20 06:18:38,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-20 06:18:38,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 287 transitions. [2020-10-20 06:18:38,330 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 287 transitions. Word has length 38 [2020-10-20 06:18:38,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:38,330 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 287 transitions. [2020-10-20 06:18:38,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 06:18:38,330 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 287 transitions. [2020-10-20 06:18:38,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-20 06:18:38,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:38,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:38,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-20 06:18:38,331 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:38,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:38,332 INFO L82 PathProgramCache]: Analyzing trace with hash -57702251, now seen corresponding path program 1 times [2020-10-20 06:18:38,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:38,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771981931] [2020-10-20 06:18:38,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:38,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:38,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:38,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771981931] [2020-10-20 06:18:38,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:38,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:18:38,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666242746] [2020-10-20 06:18:38,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:18:38,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:38,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:18:38,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:18:38,395 INFO L87 Difference]: Start difference. First operand 232 states and 287 transitions. Second operand 4 states. [2020-10-20 06:18:38,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:38,623 INFO L93 Difference]: Finished difference Result 231 states and 282 transitions. [2020-10-20 06:18:38,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:18:38,624 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2020-10-20 06:18:38,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:38,626 INFO L225 Difference]: With dead ends: 231 [2020-10-20 06:18:38,626 INFO L226 Difference]: Without dead ends: 231 [2020-10-20 06:18:38,626 INFO L677 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 [2020-10-20 06:18:38,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-10-20 06:18:38,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2020-10-20 06:18:38,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-10-20 06:18:38,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 282 transitions. [2020-10-20 06:18:38,632 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 282 transitions. Word has length 39 [2020-10-20 06:18:38,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:38,632 INFO L481 AbstractCegarLoop]: Abstraction has 231 states and 282 transitions. [2020-10-20 06:18:38,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:18:38,632 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 282 transitions. [2020-10-20 06:18:38,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-20 06:18:38,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:38,633 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:38,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-20 06:18:38,633 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:38,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:38,634 INFO L82 PathProgramCache]: Analyzing trace with hash -265284683, now seen corresponding path program 1 times [2020-10-20 06:18:38,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:38,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934541944] [2020-10-20 06:18:38,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:38,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:38,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:38,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:38,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934541944] [2020-10-20 06:18:38,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:38,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:18:38,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682652387] [2020-10-20 06:18:38,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:18:38,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:38,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:18:38,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:18:38,704 INFO L87 Difference]: Start difference. First operand 231 states and 282 transitions. Second operand 6 states. [2020-10-20 06:18:39,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:39,254 INFO L93 Difference]: Finished difference Result 339 states and 415 transitions. [2020-10-20 06:18:39,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:18:39,254 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-10-20 06:18:39,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:39,257 INFO L225 Difference]: With dead ends: 339 [2020-10-20 06:18:39,258 INFO L226 Difference]: Without dead ends: 339 [2020-10-20 06:18:39,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:18:39,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-10-20 06:18:39,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 230. [2020-10-20 06:18:39,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-20 06:18:39,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 281 transitions. [2020-10-20 06:18:39,263 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 281 transitions. Word has length 39 [2020-10-20 06:18:39,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:39,263 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 281 transitions. [2020-10-20 06:18:39,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:18:39,264 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 281 transitions. [2020-10-20 06:18:39,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-20 06:18:39,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:39,264 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:39,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-20 06:18:39,265 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:39,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:39,265 INFO L82 PathProgramCache]: Analyzing trace with hash -265284682, now seen corresponding path program 1 times [2020-10-20 06:18:39,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:39,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63780346] [2020-10-20 06:18:39,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:39,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:39,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:39,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:39,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63780346] [2020-10-20 06:18:39,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:39,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:18:39,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710993703] [2020-10-20 06:18:39,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:18:39,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:39,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:18:39,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:18:39,349 INFO L87 Difference]: Start difference. First operand 230 states and 281 transitions. Second operand 6 states. [2020-10-20 06:18:39,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:39,928 INFO L93 Difference]: Finished difference Result 366 states and 453 transitions. [2020-10-20 06:18:39,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:18:39,929 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-10-20 06:18:39,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:39,931 INFO L225 Difference]: With dead ends: 366 [2020-10-20 06:18:39,932 INFO L226 Difference]: Without dead ends: 366 [2020-10-20 06:18:39,932 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:18:39,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2020-10-20 06:18:39,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 229. [2020-10-20 06:18:39,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-10-20 06:18:39,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 280 transitions. [2020-10-20 06:18:39,937 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 280 transitions. Word has length 39 [2020-10-20 06:18:39,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:39,937 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 280 transitions. [2020-10-20 06:18:39,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:18:39,937 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 280 transitions. [2020-10-20 06:18:39,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-20 06:18:39,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:39,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:39,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-20 06:18:39,938 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:39,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:39,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1679773468, now seen corresponding path program 1 times [2020-10-20 06:18:39,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:39,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374809198] [2020-10-20 06:18:39,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:40,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:40,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:40,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374809198] [2020-10-20 06:18:40,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:40,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-20 06:18:40,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196664969] [2020-10-20 06:18:40,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-20 06:18:40,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:40,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-20 06:18:40,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-20 06:18:40,248 INFO L87 Difference]: Start difference. First operand 229 states and 280 transitions. Second operand 14 states. [2020-10-20 06:18:41,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:41,998 INFO L93 Difference]: Finished difference Result 494 states and 573 transitions. [2020-10-20 06:18:41,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-20 06:18:41,999 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 42 [2020-10-20 06:18:41,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:42,001 INFO L225 Difference]: With dead ends: 494 [2020-10-20 06:18:42,002 INFO L226 Difference]: Without dead ends: 494 [2020-10-20 06:18:42,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=181, Invalid=575, Unknown=0, NotChecked=0, Total=756 [2020-10-20 06:18:42,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-10-20 06:18:42,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 229. [2020-10-20 06:18:42,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-10-20 06:18:42,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 279 transitions. [2020-10-20 06:18:42,009 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 279 transitions. Word has length 42 [2020-10-20 06:18:42,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:42,009 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 279 transitions. [2020-10-20 06:18:42,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-20 06:18:42,010 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 279 transitions. [2020-10-20 06:18:42,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-20 06:18:42,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:42,011 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:42,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-20 06:18:42,012 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:42,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:42,012 INFO L82 PathProgramCache]: Analyzing trace with hash 706776470, now seen corresponding path program 1 times [2020-10-20 06:18:42,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:42,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278017662] [2020-10-20 06:18:42,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:42,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:42,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:42,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 06:18:42,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278017662] [2020-10-20 06:18:42,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:42,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 06:18:42,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730675306] [2020-10-20 06:18:42,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 06:18:42,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:42,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 06:18:42,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:18:42,138 INFO L87 Difference]: Start difference. First operand 229 states and 279 transitions. Second operand 8 states. [2020-10-20 06:18:42,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:42,579 INFO L93 Difference]: Finished difference Result 245 states and 295 transitions. [2020-10-20 06:18:42,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 06:18:42,580 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-10-20 06:18:42,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:42,581 INFO L225 Difference]: With dead ends: 245 [2020-10-20 06:18:42,581 INFO L226 Difference]: Without dead ends: 245 [2020-10-20 06:18:42,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-20 06:18:42,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-10-20 06:18:42,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 238. [2020-10-20 06:18:42,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-20 06:18:42,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 288 transitions. [2020-10-20 06:18:42,587 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 288 transitions. Word has length 43 [2020-10-20 06:18:42,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:42,588 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 288 transitions. [2020-10-20 06:18:42,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 06:18:42,588 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 288 transitions. [2020-10-20 06:18:42,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-20 06:18:42,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:42,589 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:42,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-20 06:18:42,590 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:42,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:42,590 INFO L82 PathProgramCache]: Analyzing trace with hash -356022593, now seen corresponding path program 1 times [2020-10-20 06:18:42,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:42,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508088926] [2020-10-20 06:18:42,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:42,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:42,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:42,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508088926] [2020-10-20 06:18:42,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:42,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-20 06:18:42,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104398268] [2020-10-20 06:18:42,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-20 06:18:42,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:42,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-20 06:18:42,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-10-20 06:18:42,847 INFO L87 Difference]: Start difference. First operand 238 states and 288 transitions. Second operand 15 states. [2020-10-20 06:18:44,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:44,111 INFO L93 Difference]: Finished difference Result 255 states and 307 transitions. [2020-10-20 06:18:44,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-20 06:18:44,112 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2020-10-20 06:18:44,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:44,114 INFO L225 Difference]: With dead ends: 255 [2020-10-20 06:18:44,114 INFO L226 Difference]: Without dead ends: 255 [2020-10-20 06:18:44,115 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=172, Invalid=640, Unknown=0, NotChecked=0, Total=812 [2020-10-20 06:18:44,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-10-20 06:18:44,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 237. [2020-10-20 06:18:44,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-10-20 06:18:44,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 287 transitions. [2020-10-20 06:18:44,120 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 287 transitions. Word has length 42 [2020-10-20 06:18:44,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:44,120 INFO L481 AbstractCegarLoop]: Abstraction has 237 states and 287 transitions. [2020-10-20 06:18:44,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-20 06:18:44,121 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 287 transitions. [2020-10-20 06:18:44,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-20 06:18:44,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:44,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:44,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-20 06:18:44,122 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:44,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:44,122 INFO L82 PathProgramCache]: Analyzing trace with hash -356022592, now seen corresponding path program 1 times [2020-10-20 06:18:44,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:44,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952529311] [2020-10-20 06:18:44,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:44,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:44,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:44,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952529311] [2020-10-20 06:18:44,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:44,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-20 06:18:44,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498380519] [2020-10-20 06:18:44,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-20 06:18:44,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:44,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-20 06:18:44,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-10-20 06:18:44,348 INFO L87 Difference]: Start difference. First operand 237 states and 287 transitions. Second operand 15 states. [2020-10-20 06:18:45,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:45,678 INFO L93 Difference]: Finished difference Result 254 states and 306 transitions. [2020-10-20 06:18:45,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-20 06:18:45,679 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2020-10-20 06:18:45,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:45,681 INFO L225 Difference]: With dead ends: 254 [2020-10-20 06:18:45,681 INFO L226 Difference]: Without dead ends: 254 [2020-10-20 06:18:45,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=172, Invalid=640, Unknown=0, NotChecked=0, Total=812 [2020-10-20 06:18:45,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-20 06:18:45,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 236. [2020-10-20 06:18:45,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-10-20 06:18:45,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 286 transitions. [2020-10-20 06:18:45,687 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 286 transitions. Word has length 42 [2020-10-20 06:18:45,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:45,687 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 286 transitions. [2020-10-20 06:18:45,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-20 06:18:45,687 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 286 transitions. [2020-10-20 06:18:45,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-20 06:18:45,688 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:45,688 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:45,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-20 06:18:45,688 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:45,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:45,689 INFO L82 PathProgramCache]: Analyzing trace with hash 769555222, now seen corresponding path program 1 times [2020-10-20 06:18:45,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:45,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821192460] [2020-10-20 06:18:45,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:45,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:45,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 06:18:45,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821192460] [2020-10-20 06:18:45,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:45,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:18:45,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606020042] [2020-10-20 06:18:45,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:18:45,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:45,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:18:45,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:18:45,752 INFO L87 Difference]: Start difference. First operand 236 states and 286 transitions. Second operand 4 states. [2020-10-20 06:18:46,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:46,002 INFO L93 Difference]: Finished difference Result 246 states and 290 transitions. [2020-10-20 06:18:46,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:18:46,002 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-10-20 06:18:46,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:46,003 INFO L225 Difference]: With dead ends: 246 [2020-10-20 06:18:46,004 INFO L226 Difference]: Without dead ends: 246 [2020-10-20 06:18:46,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:18:46,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-10-20 06:18:46,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 237. [2020-10-20 06:18:46,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-10-20 06:18:46,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 287 transitions. [2020-10-20 06:18:46,009 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 287 transitions. Word has length 43 [2020-10-20 06:18:46,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:46,010 INFO L481 AbstractCegarLoop]: Abstraction has 237 states and 287 transitions. [2020-10-20 06:18:46,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:18:46,010 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 287 transitions. [2020-10-20 06:18:46,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-20 06:18:46,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:46,011 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:46,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-20 06:18:46,013 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:46,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:46,014 INFO L82 PathProgramCache]: Analyzing trace with hash 194026000, now seen corresponding path program 1 times [2020-10-20 06:18:46,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:46,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150630018] [2020-10-20 06:18:46,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:46,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:46,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:46,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150630018] [2020-10-20 06:18:46,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:46,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:18:46,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730758218] [2020-10-20 06:18:46,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:18:46,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:46,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:18:46,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:18:46,062 INFO L87 Difference]: Start difference. First operand 237 states and 287 transitions. Second operand 4 states. [2020-10-20 06:18:46,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:46,255 INFO L93 Difference]: Finished difference Result 238 states and 288 transitions. [2020-10-20 06:18:46,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:18:46,260 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-10-20 06:18:46,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:46,262 INFO L225 Difference]: With dead ends: 238 [2020-10-20 06:18:46,262 INFO L226 Difference]: Without dead ends: 238 [2020-10-20 06:18:46,262 INFO L677 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 [2020-10-20 06:18:46,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-20 06:18:46,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-10-20 06:18:46,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-20 06:18:46,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 288 transitions. [2020-10-20 06:18:46,267 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 288 transitions. Word has length 44 [2020-10-20 06:18:46,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:46,267 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 288 transitions. [2020-10-20 06:18:46,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:18:46,268 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 288 transitions. [2020-10-20 06:18:46,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-20 06:18:46,269 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:46,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:46,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-20 06:18:46,269 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:18:46,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:46,270 INFO L82 PathProgramCache]: Analyzing trace with hash 407459685, now seen corresponding path program 1 times [2020-10-20 06:18:46,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:46,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590110686] [2020-10-20 06:18:46,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:18:46,286 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:18:46,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:18:46,304 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:18:46,334 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:18:46,334 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 06:18:46,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-20 06:18:46,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:18:46 BoogieIcfgContainer [2020-10-20 06:18:46,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:18:46,384 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:18:46,384 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:18:46,384 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:18:46,385 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:18:15" (3/4) ... [2020-10-20 06:18:46,387 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 06:18:46,447 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:18:46,447 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:18:46,449 INFO L168 Benchmark]: Toolchain (without parser) took 32450.13 ms. Allocated memory was 33.0 MB in the beginning and 154.7 MB in the end (delta: 121.6 MB). Free memory was 10.5 MB in the beginning and 94.0 MB in the end (delta: -83.6 MB). Peak memory consumption was 38.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:18:46,449 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 31.5 MB. Free memory was 9.4 MB in the beginning and 9.3 MB in the end (delta: 38.1 kB). Peak memory consumption was 38.1 kB. Max. memory is 14.3 GB. [2020-10-20 06:18:46,450 INFO L168 Benchmark]: CACSL2BoogieTranslator took 612.02 ms. Allocated memory was 33.0 MB in the beginning and 43.0 MB in the end (delta: 10.0 MB). Free memory was 9.6 MB in the beginning and 26.1 MB in the end (delta: -16.5 MB). Peak memory consumption was 10.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:18:46,450 INFO L168 Benchmark]: Boogie Preprocessor took 99.73 ms. Allocated memory is still 43.0 MB. Free memory was 26.1 MB in the beginning and 22.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:18:46,454 INFO L168 Benchmark]: RCFGBuilder took 994.37 ms. Allocated memory was 43.0 MB in the beginning and 49.3 MB in the end (delta: 6.3 MB). Free memory was 22.3 MB in the beginning and 29.6 MB in the end (delta: -7.2 MB). Peak memory consumption was 15.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:18:46,454 INFO L168 Benchmark]: TraceAbstraction took 30669.82 ms. Allocated memory was 49.3 MB in the beginning and 154.7 MB in the end (delta: 105.4 MB). Free memory was 28.8 MB in the beginning and 96.5 MB in the end (delta: -67.7 MB). Peak memory consumption was 37.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:18:46,455 INFO L168 Benchmark]: Witness Printer took 63.54 ms. Allocated memory is still 154.7 MB. Free memory was 96.5 MB in the beginning and 94.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:18:46,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 31.5 MB. Free memory was 9.4 MB in the beginning and 9.3 MB in the end (delta: 38.1 kB). Peak memory consumption was 38.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 612.02 ms. Allocated memory was 33.0 MB in the beginning and 43.0 MB in the end (delta: 10.0 MB). Free memory was 9.6 MB in the beginning and 26.1 MB in the end (delta: -16.5 MB). Peak memory consumption was 10.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 99.73 ms. Allocated memory is still 43.0 MB. Free memory was 26.1 MB in the beginning and 22.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 994.37 ms. Allocated memory was 43.0 MB in the beginning and 49.3 MB in the end (delta: 6.3 MB). Free memory was 22.3 MB in the beginning and 29.6 MB in the end (delta: -7.2 MB). Peak memory consumption was 15.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 30669.82 ms. Allocated memory was 49.3 MB in the beginning and 154.7 MB in the end (delta: 105.4 MB). Free memory was 28.8 MB in the beginning and 96.5 MB in the end (delta: -67.7 MB). Peak memory consumption was 37.6 MB. Max. memory is 14.3 GB. * Witness Printer took 63.54 ms. Allocated memory is still 154.7 MB. Free memory was 96.5 MB in the beginning and 94.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 992]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1003] SLL* list = malloc(sizeof(SLL)); VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1004] list->next = ((void*)0) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1005] list->prev = ((void*)0) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1006] COND FALSE !(!(list != ((void*)0))) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1006] COND FALSE !(__VERIFIER_nondet_int()) [L1006] list->inner = malloc(sizeof(SLL)) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1006] EXPR list->inner VAL [list={-1:0}, list->inner={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1006] list->inner->next = ((void*)0) VAL [list={-1:0}, list->inner={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1006] EXPR list->inner VAL [list={-1:0}, list->inner={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1006] list->inner->inner = ((void*)0) VAL [list={-1:0}, list->inner={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1006] EXPR list->inner VAL [list={-1:0}, list->inner={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1006] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) VAL [list={-1:0}, list->inner={-2:0}, list->inner != ((void*)0) || list->inner == ((void*)0)=1, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1006] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L1008] SLL* end = list; VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1011] COND FALSE !(__VERIFIER_nondet_int()) [L1022] end = ((void*)0) [L1023] end = list VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1026] COND FALSE !(!(((void*)0) != end)) VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1028] COND TRUE ((void*)0) != end [L1030] int len = 0; VAL [end={-1:0}, len=0, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1031] EXPR end->inner VAL [end={-1:0}, end->inner={-2:0}, len=0, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1031] SLL* inner = end->inner; [L1032] COND TRUE ((void*)0) != inner VAL [end={-1:0}, inner={-2:0}, len=0, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1034] COND TRUE len == 0 [L1035] len = 1 VAL [end={-1:0}, inner={-2:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1038] COND FALSE !(!(((void*)0) != inner)) VAL [end={-1:0}, inner={-2:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1039] EXPR inner->inner VAL [end={-1:0}, inner={-2:0}, inner->inner={0:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1039] COND FALSE !(!(((void*)0) == inner->inner)) [L1040] EXPR inner->next VAL [end={-1:0}, inner={-2:0}, inner->next={0:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1040] COND TRUE !(((void*)0) != inner->next) [L1040] CALL reach_error() [L992] COND FALSE !(0) [L992] __assert_fail ("0", "dll-01-1.c", 12, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 72 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.5s, OverallIterations: 33, TraceHistogramMax: 2, AutomataDifference: 25.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5017 SDtfs, 6892 SDslu, 13611 SDs, 0 SdLazy, 18595 SolverSat, 871 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 445 GetRequests, 114 SyntacticMatches, 3 SemanticMatches, 328 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=238occurred in iteration=28, 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, 32 MinimizatonAttempts, 2345 StatesRemovedByMinimization, 29 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1012 NumberOfCodeBlocks, 1012 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 934 ConstructedInterpolants, 9 QuantifiedInterpolants, 266879 SizeOfPredicates, 9 NumberOfNonLiveVariables, 177 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 33 InterpolantComputations, 31 PerfectInterpolantSequences, 4/6 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...