./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4519353e-3790-4b71-a16a-14a6a7d1d22e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4519353e-3790-4b71-a16a-14a6a7d1d22e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4519353e-3790-4b71-a16a-14a6a7d1d22e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4519353e-3790-4b71-a16a-14a6a7d1d22e/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_4519353e-3790-4b71-a16a-14a6a7d1d22e/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4519353e-3790-4b71-a16a-14a6a7d1d22e/bin/uautomizer --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 f369e67185304fce6130a1dfc66e8cb89abf0605 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-f470102 [2019-12-07 12:12:36,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:12:36,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:12:36,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:12:36,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:12:36,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:12:36,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:12:36,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:12:36,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:12:36,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:12:36,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:12:36,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:12:36,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:12:36,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:12:36,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:12:36,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:12:36,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:12:36,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:12:36,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:12:36,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:12:36,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:12:36,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:12:36,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:12:36,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:12:36,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:12:36,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:12:36,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:12:36,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:12:36,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:12:36,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:12:36,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:12:36,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:12:36,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:12:36,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:12:36,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:12:36,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:12:36,807 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:12:36,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:12:36,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:12:36,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:12:36,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:12:36,808 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4519353e-3790-4b71-a16a-14a6a7d1d22e/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-12-07 12:12:36,818 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:12:36,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:12:36,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:12:36,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:12:36,819 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:12:36,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:12:36,819 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:12:36,820 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 12:12:36,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:12:36,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:12:36,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:12:36,820 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 12:12:36,820 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 12:12:36,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:12:36,821 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:12:36,821 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:12:36,821 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:12:36,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:12:36,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:12:36,821 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:12:36,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:12:36,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:12:36,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:12:36,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:12:36,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:12:36,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:12:36,822 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:12:36,822 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_4519353e-3790-4b71-a16a-14a6a7d1d22e/bin/uautomizer 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 -> f369e67185304fce6130a1dfc66e8cb89abf0605 [2019-12-07 12:12:36,920 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:12:36,927 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:12:36,929 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:12:36,930 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:12:36,931 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:12:36,931 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4519353e-3790-4b71-a16a-14a6a7d1d22e/bin/uautomizer/../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i [2019-12-07 12:12:36,967 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4519353e-3790-4b71-a16a-14a6a7d1d22e/bin/uautomizer/data/c4a43c62e/6d315db8610641f08f3bd6c6becea254/FLAGabd949741 [2019-12-07 12:12:37,402 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:12:37,403 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4519353e-3790-4b71-a16a-14a6a7d1d22e/sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i [2019-12-07 12:12:37,411 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4519353e-3790-4b71-a16a-14a6a7d1d22e/bin/uautomizer/data/c4a43c62e/6d315db8610641f08f3bd6c6becea254/FLAGabd949741 [2019-12-07 12:12:37,420 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4519353e-3790-4b71-a16a-14a6a7d1d22e/bin/uautomizer/data/c4a43c62e/6d315db8610641f08f3bd6c6becea254 [2019-12-07 12:12:37,422 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:12:37,422 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 12:12:37,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:12:37,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:12:37,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:12:37,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:12:37" (1/1) ... [2019-12-07 12:12:37,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25138a46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:37, skipping insertion in model container [2019-12-07 12:12:37,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:12:37" (1/1) ... [2019-12-07 12:12:37,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:12:37,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:12:37,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:12:37,687 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:12:37,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:12:37,754 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:12:37,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:37 WrapperNode [2019-12-07 12:12:37,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:12:37,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:12:37,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:12:37,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:12:37,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:37" (1/1) ... [2019-12-07 12:12:37,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:37" (1/1) ... [2019-12-07 12:12:37,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:37" (1/1) ... [2019-12-07 12:12:37,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:37" (1/1) ... [2019-12-07 12:12:37,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:37" (1/1) ... [2019-12-07 12:12:37,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:37" (1/1) ... [2019-12-07 12:12:37,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:37" (1/1) ... [2019-12-07 12:12:37,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:12:37,799 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:12:37,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:12:37,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:12:37,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4519353e-3790-4b71-a16a-14a6a7d1d22e/bin/uautomizer/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 [2019-12-07 12:12:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 12:12:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:12:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 12:12:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 12:12:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 12:12:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 12:12:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 12:12:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 12:12:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 12:12:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 12:12:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 12:12:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 12:12:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 12:12:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 12:12:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 12:12:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 12:12:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 12:12:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 12:12:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 12:12:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 12:12:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 12:12:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 12:12:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 12:12:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 12:12:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 12:12:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 12:12:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 12:12:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 12:12:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 12:12:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 12:12:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 12:12:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 12:12:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 12:12:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 12:12:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 12:12:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 12:12:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 12:12:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 12:12:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 12:12:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 12:12:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 12:12:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 12:12:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 12:12:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 12:12:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 12:12:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 12:12:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 12:12:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 12:12:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 12:12:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 12:12:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 12:12:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 12:12:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 12:12:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 12:12:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 12:12:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 12:12:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 12:12:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-12-07 12:12:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 12:12:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 12:12:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 12:12:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 12:12:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 12:12:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 12:12:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 12:12:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 12:12:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 12:12:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 12:12:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 12:12:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 12:12:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 12:12:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 12:12:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 12:12:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 12:12:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 12:12:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 12:12:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 12:12:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 12:12:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 12:12:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 12:12:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 12:12:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 12:12:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 12:12:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 12:12:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 12:12:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 12:12:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 12:12:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 12:12:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 12:12:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 12:12:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 12:12:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 12:12:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 12:12:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 12:12:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 12:12:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 12:12:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 12:12:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 12:12:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 12:12:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 12:12:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 12:12:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 12:12:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 12:12:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 12:12:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 12:12:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 12:12:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 12:12:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-12-07 12:12:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 12:12:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 12:12:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 12:12:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 12:12:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 12:12:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 12:12:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:12:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 12:12:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:12:38,206 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:12:38,206 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-07 12:12:38,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:12:38 BoogieIcfgContainer [2019-12-07 12:12:38,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:12:38,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:12:38,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:12:38,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:12:38,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:12:37" (1/3) ... [2019-12-07 12:12:38,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dbc7b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:12:38, skipping insertion in model container [2019-12-07 12:12:38,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:37" (2/3) ... [2019-12-07 12:12:38,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dbc7b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:12:38, skipping insertion in model container [2019-12-07 12:12:38,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:12:38" (3/3) ... [2019-12-07 12:12:38,212 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-simple-white-blue-1.i [2019-12-07 12:12:38,219 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:12:38,224 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 61 error locations. [2019-12-07 12:12:38,232 INFO L249 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2019-12-07 12:12:38,245 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:12:38,245 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 12:12:38,245 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:12:38,245 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:12:38,245 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:12:38,245 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:12:38,245 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:12:38,245 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:12:38,258 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states. [2019-12-07 12:12:38,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 12:12:38,264 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:38,264 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:12:38,265 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 12:12:38,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:38,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1597394023, now seen corresponding path program 1 times [2019-12-07 12:12:38,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:12:38,274 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561493672] [2019-12-07 12:12:38,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:12:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:38,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:38,394 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561493672] [2019-12-07 12:12:38,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:12:38,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:12:38,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280356835] [2019-12-07 12:12:38,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:12:38,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:12:38,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:12:38,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:12:38,410 INFO L87 Difference]: Start difference. First operand 130 states. Second operand 4 states. [2019-12-07 12:12:38,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:12:38,710 INFO L93 Difference]: Finished difference Result 156 states and 166 transitions. [2019-12-07 12:12:38,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:12:38,711 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 12:12:38,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:12:38,718 INFO L225 Difference]: With dead ends: 156 [2019-12-07 12:12:38,719 INFO L226 Difference]: Without dead ends: 152 [2019-12-07 12:12:38,720 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:12:38,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-12-07 12:12:38,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 123. [2019-12-07 12:12:38,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-12-07 12:12:38,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 130 transitions. [2019-12-07 12:12:38,751 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 130 transitions. Word has length 7 [2019-12-07 12:12:38,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:12:38,751 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 130 transitions. [2019-12-07 12:12:38,751 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:12:38,751 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 130 transitions. [2019-12-07 12:12:38,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 12:12:38,751 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:38,752 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:12:38,752 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 12:12:38,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:38,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1597394022, now seen corresponding path program 1 times [2019-12-07 12:12:38,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:12:38,752 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681776842] [2019-12-07 12:12:38,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:12:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:38,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:38,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:38,791 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681776842] [2019-12-07 12:12:38,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:12:38,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:12:38,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968167356] [2019-12-07 12:12:38,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:12:38,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:12:38,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:12:38,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:12:38,793 INFO L87 Difference]: Start difference. First operand 123 states and 130 transitions. Second operand 4 states. [2019-12-07 12:12:38,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:12:38,982 INFO L93 Difference]: Finished difference Result 149 states and 158 transitions. [2019-12-07 12:12:38,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:12:38,983 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 12:12:38,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:12:38,984 INFO L225 Difference]: With dead ends: 149 [2019-12-07 12:12:38,984 INFO L226 Difference]: Without dead ends: 149 [2019-12-07 12:12:38,985 INFO L630 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 [2019-12-07 12:12:38,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2019-12-07 12:12:38,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 120. [2019-12-07 12:12:38,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-12-07 12:12:38,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 127 transitions. [2019-12-07 12:12:38,992 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 127 transitions. Word has length 7 [2019-12-07 12:12:38,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:12:38,992 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 127 transitions. [2019-12-07 12:12:38,992 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:12:38,993 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 127 transitions. [2019-12-07 12:12:38,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 12:12:38,993 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:38,993 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:12:38,993 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 12:12:38,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:38,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1796456478, now seen corresponding path program 1 times [2019-12-07 12:12:38,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:12:38,994 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047432211] [2019-12-07 12:12:38,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:12:39,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:39,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:39,061 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047432211] [2019-12-07 12:12:39,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:12:39,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 12:12:39,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604846861] [2019-12-07 12:12:39,062 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 12:12:39,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:12:39,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:12:39,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:12:39,063 INFO L87 Difference]: Start difference. First operand 120 states and 127 transitions. Second operand 5 states. [2019-12-07 12:12:39,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:12:39,241 INFO L93 Difference]: Finished difference Result 120 states and 127 transitions. [2019-12-07 12:12:39,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 12:12:39,241 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-12-07 12:12:39,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:12:39,242 INFO L225 Difference]: With dead ends: 120 [2019-12-07 12:12:39,243 INFO L226 Difference]: Without dead ends: 120 [2019-12-07 12:12:39,243 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:12:39,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-12-07 12:12:39,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 112. [2019-12-07 12:12:39,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-12-07 12:12:39,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 125 transitions. [2019-12-07 12:12:39,249 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 125 transitions. Word has length 13 [2019-12-07 12:12:39,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:12:39,250 INFO L462 AbstractCegarLoop]: Abstraction has 112 states and 125 transitions. [2019-12-07 12:12:39,250 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 12:12:39,250 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 125 transitions. [2019-12-07 12:12:39,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 12:12:39,250 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:39,250 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:12:39,251 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 12:12:39,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:39,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1796456477, now seen corresponding path program 1 times [2019-12-07 12:12:39,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:12:39,251 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144342477] [2019-12-07 12:12:39,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:12:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:39,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:39,310 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144342477] [2019-12-07 12:12:39,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:12:39,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 12:12:39,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606490272] [2019-12-07 12:12:39,318 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 12:12:39,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:12:39,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:12:39,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:12:39,319 INFO L87 Difference]: Start difference. First operand 112 states and 125 transitions. Second operand 5 states. [2019-12-07 12:12:39,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:12:39,501 INFO L93 Difference]: Finished difference Result 144 states and 156 transitions. [2019-12-07 12:12:39,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:12:39,502 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-12-07 12:12:39,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:12:39,503 INFO L225 Difference]: With dead ends: 144 [2019-12-07 12:12:39,503 INFO L226 Difference]: Without dead ends: 144 [2019-12-07 12:12:39,503 INFO L630 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 [2019-12-07 12:12:39,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-12-07 12:12:39,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 126. [2019-12-07 12:12:39,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-12-07 12:12:39,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 141 transitions. [2019-12-07 12:12:39,509 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 141 transitions. Word has length 13 [2019-12-07 12:12:39,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:12:39,509 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 141 transitions. [2019-12-07 12:12:39,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 12:12:39,509 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 141 transitions. [2019-12-07 12:12:39,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 12:12:39,509 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:39,509 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:12:39,510 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 12:12:39,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:39,510 INFO L82 PathProgramCache]: Analyzing trace with hash 182177509, now seen corresponding path program 1 times [2019-12-07 12:12:39,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:12:39,510 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755764966] [2019-12-07 12:12:39,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:12:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:39,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:39,547 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755764966] [2019-12-07 12:12:39,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:12:39,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 12:12:39,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458579664] [2019-12-07 12:12:39,548 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 12:12:39,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:12:39,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 12:12:39,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:12:39,548 INFO L87 Difference]: Start difference. First operand 126 states and 141 transitions. Second operand 6 states. [2019-12-07 12:12:39,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:12:39,822 INFO L93 Difference]: Finished difference Result 206 states and 229 transitions. [2019-12-07 12:12:39,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 12:12:39,822 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-12-07 12:12:39,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:12:39,823 INFO L225 Difference]: With dead ends: 206 [2019-12-07 12:12:39,823 INFO L226 Difference]: Without dead ends: 206 [2019-12-07 12:12:39,823 INFO L630 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 [2019-12-07 12:12:39,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2019-12-07 12:12:39,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 125. [2019-12-07 12:12:39,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-12-07 12:12:39,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 139 transitions. [2019-12-07 12:12:39,829 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 139 transitions. Word has length 15 [2019-12-07 12:12:39,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:12:39,829 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 139 transitions. [2019-12-07 12:12:39,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 12:12:39,829 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 139 transitions. [2019-12-07 12:12:39,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 12:12:39,829 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:39,829 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:12:39,830 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 12:12:39,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:39,830 INFO L82 PathProgramCache]: Analyzing trace with hash 182177510, now seen corresponding path program 1 times [2019-12-07 12:12:39,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:12:39,830 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399502241] [2019-12-07 12:12:39,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:12:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:39,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:39,873 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399502241] [2019-12-07 12:12:39,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:12:39,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 12:12:39,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597883724] [2019-12-07 12:12:39,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 12:12:39,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:12:39,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 12:12:39,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:12:39,874 INFO L87 Difference]: Start difference. First operand 125 states and 139 transitions. Second operand 6 states. [2019-12-07 12:12:40,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:12:40,188 INFO L93 Difference]: Finished difference Result 215 states and 239 transitions. [2019-12-07 12:12:40,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 12:12:40,188 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-12-07 12:12:40,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:12:40,189 INFO L225 Difference]: With dead ends: 215 [2019-12-07 12:12:40,189 INFO L226 Difference]: Without dead ends: 215 [2019-12-07 12:12:40,190 INFO L630 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 [2019-12-07 12:12:40,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2019-12-07 12:12:40,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 124. [2019-12-07 12:12:40,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-12-07 12:12:40,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 137 transitions. [2019-12-07 12:12:40,195 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 137 transitions. Word has length 15 [2019-12-07 12:12:40,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:12:40,195 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 137 transitions. [2019-12-07 12:12:40,195 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 12:12:40,195 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 137 transitions. [2019-12-07 12:12:40,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 12:12:40,196 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:40,196 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:12:40,197 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 12:12:40,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:40,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1998534361, now seen corresponding path program 1 times [2019-12-07 12:12:40,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:12:40,197 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118163142] [2019-12-07 12:12:40,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:12:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:40,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:40,282 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118163142] [2019-12-07 12:12:40,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:12:40,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-12-07 12:12:40,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18286868] [2019-12-07 12:12:40,283 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 12:12:40,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:12:40,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 12:12:40,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-12-07 12:12:40,284 INFO L87 Difference]: Start difference. First operand 124 states and 137 transitions. Second operand 10 states. [2019-12-07 12:12:40,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:12:40,685 INFO L93 Difference]: Finished difference Result 128 states and 139 transitions. [2019-12-07 12:12:40,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 12:12:40,685 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2019-12-07 12:12:40,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:12:40,686 INFO L225 Difference]: With dead ends: 128 [2019-12-07 12:12:40,686 INFO L226 Difference]: Without dead ends: 128 [2019-12-07 12:12:40,686 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2019-12-07 12:12:40,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-12-07 12:12:40,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 123. [2019-12-07 12:12:40,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-12-07 12:12:40,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 136 transitions. [2019-12-07 12:12:40,690 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 136 transitions. Word has length 19 [2019-12-07 12:12:40,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:12:40,690 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 136 transitions. [2019-12-07 12:12:40,690 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 12:12:40,690 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 136 transitions. [2019-12-07 12:12:40,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 12:12:40,690 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:40,691 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:12:40,691 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 12:12:40,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:40,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1998534360, now seen corresponding path program 1 times [2019-12-07 12:12:40,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:12:40,691 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675990462] [2019-12-07 12:12:40,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:12:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:40,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:40,783 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675990462] [2019-12-07 12:12:40,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:12:40,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-12-07 12:12:40,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158329993] [2019-12-07 12:12:40,783 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 12:12:40,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:12:40,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 12:12:40,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-12-07 12:12:40,784 INFO L87 Difference]: Start difference. First operand 123 states and 136 transitions. Second operand 11 states. [2019-12-07 12:12:41,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:12:41,390 INFO L93 Difference]: Finished difference Result 126 states and 138 transitions. [2019-12-07 12:12:41,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 12:12:41,391 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2019-12-07 12:12:41,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:12:41,392 INFO L225 Difference]: With dead ends: 126 [2019-12-07 12:12:41,392 INFO L226 Difference]: Without dead ends: 126 [2019-12-07 12:12:41,392 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2019-12-07 12:12:41,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-12-07 12:12:41,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 111. [2019-12-07 12:12:41,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-12-07 12:12:41,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 123 transitions. [2019-12-07 12:12:41,395 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 123 transitions. Word has length 19 [2019-12-07 12:12:41,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:12:41,395 INFO L462 AbstractCegarLoop]: Abstraction has 111 states and 123 transitions. [2019-12-07 12:12:41,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 12:12:41,395 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 123 transitions. [2019-12-07 12:12:41,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 12:12:41,396 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:41,396 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:12:41,396 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 12:12:41,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:41,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1021234684, now seen corresponding path program 1 times [2019-12-07 12:12:41,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:12:41,396 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556353151] [2019-12-07 12:12:41,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:12:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:41,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:41,445 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556353151] [2019-12-07 12:12:41,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:12:41,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 12:12:41,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797328874] [2019-12-07 12:12:41,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 12:12:41,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:12:41,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 12:12:41,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:12:41,446 INFO L87 Difference]: Start difference. First operand 111 states and 123 transitions. Second operand 6 states. [2019-12-07 12:12:41,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:12:41,617 INFO L93 Difference]: Finished difference Result 122 states and 136 transitions. [2019-12-07 12:12:41,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 12:12:41,617 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-12-07 12:12:41,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:12:41,618 INFO L225 Difference]: With dead ends: 122 [2019-12-07 12:12:41,618 INFO L226 Difference]: Without dead ends: 122 [2019-12-07 12:12:41,618 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-07 12:12:41,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-12-07 12:12:41,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 117. [2019-12-07 12:12:41,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-12-07 12:12:41,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 131 transitions. [2019-12-07 12:12:41,621 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 131 transitions. Word has length 20 [2019-12-07 12:12:41,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:12:41,621 INFO L462 AbstractCegarLoop]: Abstraction has 117 states and 131 transitions. [2019-12-07 12:12:41,621 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 12:12:41,621 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 131 transitions. [2019-12-07 12:12:41,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 12:12:41,622 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:41,622 INFO L410 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] [2019-12-07 12:12:41,622 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 12:12:41,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:41,622 INFO L82 PathProgramCache]: Analyzing trace with hash 617515280, now seen corresponding path program 1 times [2019-12-07 12:12:41,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:12:41,623 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787440] [2019-12-07 12:12:41,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:12:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:41,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:41,666 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787440] [2019-12-07 12:12:41,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:12:41,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 12:12:41,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117062952] [2019-12-07 12:12:41,667 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 12:12:41,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:12:41,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 12:12:41,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 12:12:41,667 INFO L87 Difference]: Start difference. First operand 117 states and 131 transitions. Second operand 7 states. [2019-12-07 12:12:41,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:12:41,950 INFO L93 Difference]: Finished difference Result 153 states and 170 transitions. [2019-12-07 12:12:41,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 12:12:41,951 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2019-12-07 12:12:41,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:12:41,952 INFO L225 Difference]: With dead ends: 153 [2019-12-07 12:12:41,952 INFO L226 Difference]: Without dead ends: 153 [2019-12-07 12:12:41,952 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-12-07 12:12:41,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-12-07 12:12:41,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 116. [2019-12-07 12:12:41,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-12-07 12:12:41,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 130 transitions. [2019-12-07 12:12:41,955 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 130 transitions. Word has length 22 [2019-12-07 12:12:41,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:12:41,956 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 130 transitions. [2019-12-07 12:12:41,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 12:12:41,956 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 130 transitions. [2019-12-07 12:12:41,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 12:12:41,956 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:41,957 INFO L410 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] [2019-12-07 12:12:41,957 INFO L410 AbstractCegarLoop]: === Iteration 11 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 12:12:41,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:41,957 INFO L82 PathProgramCache]: Analyzing trace with hash 617515281, now seen corresponding path program 1 times [2019-12-07 12:12:41,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:12:41,957 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792146886] [2019-12-07 12:12:41,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:12:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:42,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:42,010 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792146886] [2019-12-07 12:12:42,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:12:42,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 12:12:42,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238342281] [2019-12-07 12:12:42,010 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 12:12:42,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:12:42,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 12:12:42,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 12:12:42,011 INFO L87 Difference]: Start difference. First operand 116 states and 130 transitions. Second operand 7 states. [2019-12-07 12:12:42,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:12:42,272 INFO L93 Difference]: Finished difference Result 159 states and 178 transitions. [2019-12-07 12:12:42,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 12:12:42,272 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2019-12-07 12:12:42,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:12:42,273 INFO L225 Difference]: With dead ends: 159 [2019-12-07 12:12:42,273 INFO L226 Difference]: Without dead ends: 159 [2019-12-07 12:12:42,273 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-12-07 12:12:42,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2019-12-07 12:12:42,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 113. [2019-12-07 12:12:42,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-12-07 12:12:42,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 127 transitions. [2019-12-07 12:12:42,276 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 127 transitions. Word has length 22 [2019-12-07 12:12:42,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:12:42,276 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 127 transitions. [2019-12-07 12:12:42,276 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 12:12:42,276 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 127 transitions. [2019-12-07 12:12:42,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 12:12:42,277 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:42,277 INFO L410 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] [2019-12-07 12:12:42,277 INFO L410 AbstractCegarLoop]: === Iteration 12 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 12:12:42,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:42,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1393880153, now seen corresponding path program 1 times [2019-12-07 12:12:42,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:12:42,277 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365884193] [2019-12-07 12:12:42,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:12:42,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:42,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:42,333 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365884193] [2019-12-07 12:12:42,333 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150689282] [2019-12-07 12:12:42,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4519353e-3790-4b71-a16a-14a6a7d1d22e/bin/uautomizer/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 [2019-12-07 12:12:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:42,400 INFO L264 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 22 conjunts are in the unsatisfiable core [2019-12-07 12:12:42,404 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:12:42,454 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:12:42,455 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-12-07 12:12:42,455 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:12:42,465 INFO L614 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-12-07 12:12:42,466 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 12:12:42,466 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2019-12-07 12:12:42,480 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2019-12-07 12:12:42,481 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:12:42,486 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:12:42,486 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 12:12:42,486 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:23 [2019-12-07 12:12:42,509 INFO L343 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2019-12-07 12:12:42,509 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 26 [2019-12-07 12:12:42,510 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:12:42,515 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:12:42,515 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 12:12:42,515 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2019-12-07 12:12:42,548 INFO L343 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2019-12-07 12:12:42,549 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 16 [2019-12-07 12:12:42,549 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:12:42,553 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:12:42,553 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 12:12:42,553 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:39, output treesize:15 [2019-12-07 12:12:42,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:42,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 12:12:42,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2019-12-07 12:12:42,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329988796] [2019-12-07 12:12:42,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-12-07 12:12:42,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:12:42,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-12-07 12:12:42,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2019-12-07 12:12:42,585 INFO L87 Difference]: Start difference. First operand 113 states and 127 transitions. Second operand 14 states. [2019-12-07 12:12:43,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:12:43,097 INFO L93 Difference]: Finished difference Result 161 states and 176 transitions. [2019-12-07 12:12:43,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-12-07 12:12:43,098 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 24 [2019-12-07 12:12:43,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:12:43,100 INFO L225 Difference]: With dead ends: 161 [2019-12-07 12:12:43,100 INFO L226 Difference]: Without dead ends: 161 [2019-12-07 12:12:43,100 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2019-12-07 12:12:43,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2019-12-07 12:12:43,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 119. [2019-12-07 12:12:43,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-12-07 12:12:43,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 135 transitions. [2019-12-07 12:12:43,105 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 135 transitions. Word has length 24 [2019-12-07 12:12:43,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:12:43,105 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 135 transitions. [2019-12-07 12:12:43,105 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-12-07 12:12:43,105 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 135 transitions. [2019-12-07 12:12:43,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 12:12:43,106 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:43,106 INFO L410 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] [2019-12-07 12:12:43,307 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 12:12:43,308 INFO L410 AbstractCegarLoop]: === Iteration 13 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 12:12:43,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:43,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1393880154, now seen corresponding path program 1 times [2019-12-07 12:12:43,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:12:43,308 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236660120] [2019-12-07 12:12:43,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:12:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:43,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:43,389 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236660120] [2019-12-07 12:12:43,389 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165943683] [2019-12-07 12:12:43,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4519353e-3790-4b71-a16a-14a6a7d1d22e/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 12:12:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:43,449 INFO L264 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 30 conjunts are in the unsatisfiable core [2019-12-07 12:12:43,451 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:12:43,478 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:12:43,479 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-12-07 12:12:43,479 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:12:43,484 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:12:43,486 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 14 treesize of output 16 [2019-12-07 12:12:43,487 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 12:12:43,492 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:12:43,492 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 12:12:43,492 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2019-12-07 12:12:43,509 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2019-12-07 12:12:43,510 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:12:43,519 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:12:43,521 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2019-12-07 12:12:43,521 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 12:12:43,528 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:12:43,529 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 12:12:43,529 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:38 [2019-12-07 12:12:43,549 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 12:12:43,550 INFO L377 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 37 treesize of output 32 [2019-12-07 12:12:43,550 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:12:43,559 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:12:43,562 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 12:12:43,562 INFO L377 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 38 treesize of output 33 [2019-12-07 12:12:43,563 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 12:12:43,571 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:12:43,571 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 12:12:43,571 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:64, output treesize:56 [2019-12-07 12:12:43,629 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 12:12:43,630 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2019-12-07 12:12:43,631 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:12:43,638 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:12:43,640 INFO L343 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2019-12-07 12:12:43,641 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 19 [2019-12-07 12:12:43,641 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 12:12:43,646 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:12:43,647 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 12:12:43,647 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:70, output treesize:22 [2019-12-07 12:12:43,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:43,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 12:12:43,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2019-12-07 12:12:43,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004072737] [2019-12-07 12:12:43,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-12-07 12:12:43,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:12:43,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-12-07 12:12:43,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2019-12-07 12:12:43,689 INFO L87 Difference]: Start difference. First operand 119 states and 135 transitions. Second operand 17 states. [2019-12-07 12:12:45,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:12:45,387 INFO L93 Difference]: Finished difference Result 179 states and 195 transitions. [2019-12-07 12:12:45,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 12:12:45,388 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 24 [2019-12-07 12:12:45,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:12:45,391 INFO L225 Difference]: With dead ends: 179 [2019-12-07 12:12:45,391 INFO L226 Difference]: Without dead ends: 179 [2019-12-07 12:12:45,392 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=155, Invalid=601, Unknown=0, NotChecked=0, Total=756 [2019-12-07 12:12:45,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-12-07 12:12:45,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 118. [2019-12-07 12:12:45,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-12-07 12:12:45,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 133 transitions. [2019-12-07 12:12:45,399 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 133 transitions. Word has length 24 [2019-12-07 12:12:45,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:12:45,400 INFO L462 AbstractCegarLoop]: Abstraction has 118 states and 133 transitions. [2019-12-07 12:12:45,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-12-07 12:12:45,400 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 133 transitions. [2019-12-07 12:12:45,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 12:12:45,402 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:45,402 INFO L410 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] [2019-12-07 12:12:45,602 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 12:12:45,603 INFO L410 AbstractCegarLoop]: === Iteration 14 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 12:12:45,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:45,603 INFO L82 PathProgramCache]: Analyzing trace with hash 258980964, now seen corresponding path program 1 times [2019-12-07 12:12:45,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:12:45,604 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221442390] [2019-12-07 12:12:45,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:12:45,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:45,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:45,679 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221442390] [2019-12-07 12:12:45,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:12:45,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 12:12:45,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020247251] [2019-12-07 12:12:45,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 12:12:45,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:12:45,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 12:12:45,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-12-07 12:12:45,680 INFO L87 Difference]: Start difference. First operand 118 states and 133 transitions. Second operand 8 states. [2019-12-07 12:12:45,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:12:45,945 INFO L93 Difference]: Finished difference Result 163 states and 180 transitions. [2019-12-07 12:12:45,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 12:12:45,945 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2019-12-07 12:12:45,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:12:45,946 INFO L225 Difference]: With dead ends: 163 [2019-12-07 12:12:45,946 INFO L226 Difference]: Without dead ends: 163 [2019-12-07 12:12:45,946 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-12-07 12:12:45,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-12-07 12:12:45,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 122. [2019-12-07 12:12:45,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-12-07 12:12:45,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 139 transitions. [2019-12-07 12:12:45,949 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 139 transitions. Word has length 25 [2019-12-07 12:12:45,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:12:45,949 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 139 transitions. [2019-12-07 12:12:45,949 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 12:12:45,949 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 139 transitions. [2019-12-07 12:12:45,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 12:12:45,949 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:45,950 INFO L410 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] [2019-12-07 12:12:45,950 INFO L410 AbstractCegarLoop]: === Iteration 15 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 12:12:45,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:45,950 INFO L82 PathProgramCache]: Analyzing trace with hash 258980965, now seen corresponding path program 1 times [2019-12-07 12:12:45,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:12:45,950 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950333910] [2019-12-07 12:12:45,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:12:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:46,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:46,031 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950333910] [2019-12-07 12:12:46,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:12:46,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-07 12:12:46,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026664759] [2019-12-07 12:12:46,032 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 12:12:46,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:12:46,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 12:12:46,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-12-07 12:12:46,033 INFO L87 Difference]: Start difference. First operand 122 states and 139 transitions. Second operand 9 states. [2019-12-07 12:12:46,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:12:46,832 INFO L93 Difference]: Finished difference Result 185 states and 202 transitions. [2019-12-07 12:12:46,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 12:12:46,833 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2019-12-07 12:12:46,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:12:46,833 INFO L225 Difference]: With dead ends: 185 [2019-12-07 12:12:46,834 INFO L226 Difference]: Without dead ends: 185 [2019-12-07 12:12:46,834 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2019-12-07 12:12:46,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2019-12-07 12:12:46,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 124. [2019-12-07 12:12:46,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-12-07 12:12:46,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 141 transitions. [2019-12-07 12:12:46,836 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 141 transitions. Word has length 25 [2019-12-07 12:12:46,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:12:46,837 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 141 transitions. [2019-12-07 12:12:46,837 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 12:12:46,837 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 141 transitions. [2019-12-07 12:12:46,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 12:12:46,837 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:46,837 INFO L410 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] [2019-12-07 12:12:46,837 INFO L410 AbstractCegarLoop]: === Iteration 16 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 12:12:46,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:46,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1052847383, now seen corresponding path program 1 times [2019-12-07 12:12:46,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:12:46,838 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886334911] [2019-12-07 12:12:46,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:12:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:46,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:46,883 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886334911] [2019-12-07 12:12:46,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:12:46,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 12:12:46,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814041869] [2019-12-07 12:12:46,884 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 12:12:46,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:12:46,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 12:12:46,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 12:12:46,885 INFO L87 Difference]: Start difference. First operand 124 states and 141 transitions. Second operand 7 states. [2019-12-07 12:12:47,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:12:47,127 INFO L93 Difference]: Finished difference Result 187 states and 209 transitions. [2019-12-07 12:12:47,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 12:12:47,128 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2019-12-07 12:12:47,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:12:47,128 INFO L225 Difference]: With dead ends: 187 [2019-12-07 12:12:47,129 INFO L226 Difference]: Without dead ends: 187 [2019-12-07 12:12:47,129 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-12-07 12:12:47,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2019-12-07 12:12:47,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 136. [2019-12-07 12:12:47,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-12-07 12:12:47,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 156 transitions. [2019-12-07 12:12:47,132 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 156 transitions. Word has length 25 [2019-12-07 12:12:47,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:12:47,132 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 156 transitions. [2019-12-07 12:12:47,132 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 12:12:47,132 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 156 transitions. [2019-12-07 12:12:47,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 12:12:47,132 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:47,133 INFO L410 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] [2019-12-07 12:12:47,133 INFO L410 AbstractCegarLoop]: === Iteration 17 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-12-07 12:12:47,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:47,133 INFO L82 PathProgramCache]: Analyzing trace with hash -227392695, now seen corresponding path program 1 times [2019-12-07 12:12:47,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:12:47,133 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686899621] [2019-12-07 12:12:47,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:12:47,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:12:47,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:12:47,167 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:12:47,167 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:12:47,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:12:47 BoogieIcfgContainer [2019-12-07 12:12:47,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:12:47,189 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:12:47,189 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:12:47,189 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:12:47,189 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:12:38" (3/4) ... [2019-12-07 12:12:47,191 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 12:12:47,226 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4519353e-3790-4b71-a16a-14a6a7d1d22e/bin/uautomizer/witness.graphml [2019-12-07 12:12:47,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:12:47,227 INFO L168 Benchmark]: Toolchain (without parser) took 9804.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.4 MB). Free memory was 935.4 MB in the beginning and 1.0 GB in the end (delta: -101.5 MB). Peak memory consumption was 79.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:12:47,227 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:12:47,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 935.4 MB in the beginning and 1.1 GB in the end (delta: -138.2 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2019-12-07 12:12:47,228 INFO L168 Benchmark]: Boogie Preprocessor took 44.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:12:47,228 INFO L168 Benchmark]: RCFGBuilder took 408.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.2 MB). Peak memory consumption was 66.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:12:47,229 INFO L168 Benchmark]: TraceAbstraction took 8980.90 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 91.8 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -44.8 MB). Peak memory consumption was 47.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:12:47,229 INFO L168 Benchmark]: Witness Printer took 37.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:12:47,231 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 331.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 935.4 MB in the beginning and 1.1 GB in the end (delta: -138.2 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 408.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.2 MB). Peak memory consumption was 66.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8980.90 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 91.8 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -44.8 MB). Peak memory consumption was 47.0 MB. Max. memory is 11.5 GB. * Witness Printer took 37.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1052]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L989] SLL* head = malloc(sizeof(SLL)); VAL [head={6:0}, malloc(sizeof(SLL))={6:0}] [L990] head->next = ((void*)0) VAL [head={6:0}, malloc(sizeof(SLL))={6:0}] [L991] head->prev = ((void*)0) VAL [head={6:0}, malloc(sizeof(SLL))={6:0}] [L992] head->data = 0 VAL [head={6:0}, malloc(sizeof(SLL))={6:0}] [L994] SLL* x = head; VAL [head={6:0}, malloc(sizeof(SLL))={6:0}, x={6:0}] [L997] COND FALSE !(__VERIFIER_nondet_int()) [L1008] COND TRUE __VERIFIER_nondet_int() [L1009] x = malloc(sizeof(SLL)) VAL [head={6:0}, malloc(sizeof(SLL))={6:0}, malloc(sizeof(SLL))={5:0}, x={5:0}] [L1010] x->data = 1 VAL [head={6:0}, malloc(sizeof(SLL))={6:0}, malloc(sizeof(SLL))={5:0}, x={5:0}] [L1011] x->next = head VAL [head={6:0}, malloc(sizeof(SLL))={6:0}, malloc(sizeof(SLL))={5:0}, x={5:0}] [L1012] x->prev = ((void*)0) VAL [head={6:0}, malloc(sizeof(SLL))={6:0}, malloc(sizeof(SLL))={5:0}, x={5:0}] [L1013] head = x VAL [head={5:0}, malloc(sizeof(SLL))={6:0}, malloc(sizeof(SLL))={5:0}, x={5:0}] [L1039] x = head VAL [head={5:0}, malloc(sizeof(SLL))={6:0}, malloc(sizeof(SLL))={5:0}, x={5:0}] [L1042] EXPR x->data VAL [head={5:0}, malloc(sizeof(SLL))={6:0}, malloc(sizeof(SLL))={5:0}, x={5:0}, x->data=1] [L1042] COND FALSE !(x->data != 1) [L1048] EXPR x->next VAL [head={5:0}, malloc(sizeof(SLL))={6:0}, malloc(sizeof(SLL))={5:0}, x={5:0}, x->next={6:0}] [L1048] x = x->next [L1049] COND TRUE \read(*x) VAL [head={5:0}, malloc(sizeof(SLL))={6:0}, malloc(sizeof(SLL))={5:0}, x={6:0}] [L1051] EXPR x->data VAL [head={5:0}, malloc(sizeof(SLL))={6:0}, malloc(sizeof(SLL))={5:0}, x={6:0}, x->data=0] [L1051] COND TRUE x->data != 1 [L1052] __VERIFIER_error() VAL [head={5:0}, malloc(sizeof(SLL))={6:0}, malloc(sizeof(SLL))={5:0}, x={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 130 locations, 61 error locations. Result: UNSAFE, OverallTime: 8.9s, OverallIterations: 17, TraceHistogramMax: 1, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1219 SDtfs, 2674 SDslu, 2471 SDs, 0 SdLazy, 7033 SolverSat, 421 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 247 GetRequests, 77 SyntacticMatches, 10 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 16 MinimizatonAttempts, 620 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 370 NumberOfCodeBlocks, 370 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 325 ConstructedInterpolants, 4 QuantifiedInterpolants, 57540 SizeOfPredicates, 20 NumberOfNonLiveVariables, 274 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 18 InterpolantComputations, 14 PerfectInterpolantSequences, 1/5 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...