./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/list_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_58ea2e90-dfc9-4323-a1c9-807f8749e454/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_58ea2e90-dfc9-4323-a1c9-807f8749e454/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_58ea2e90-dfc9-4323-a1c9-807f8749e454/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_58ea2e90-dfc9-4323-a1c9-807f8749e454/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_58ea2e90-dfc9-4323-a1c9-807f8749e454/bin-2019/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_58ea2e90-dfc9-4323-a1c9-807f8749e454/bin-2019/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 59941807ee61f14408f8cb6acb0590ac0607fc0d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memtrack) --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:39:23,663 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:39:23,665 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:39:23,673 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:39:23,673 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:39:23,674 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:39:23,675 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:39:23,676 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:39:23,677 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:39:23,677 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:39:23,678 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:39:23,678 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:39:23,679 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:39:23,679 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:39:23,680 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:39:23,681 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:39:23,681 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:39:23,683 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:39:23,684 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:39:23,685 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:39:23,686 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:39:23,687 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:39:23,688 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:39:23,689 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:39:23,689 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:39:23,689 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:39:23,690 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:39:23,691 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:39:23,691 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:39:23,692 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:39:23,692 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:39:23,693 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:39:23,693 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:39:23,693 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:39:23,694 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:39:23,694 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:39:23,694 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_58ea2e90-dfc9-4323-a1c9-807f8749e454/bin-2019/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2018-11-28 12:39:23,704 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:39:23,704 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:39:23,705 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:39:23,705 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:39:23,706 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:39:23,706 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:39:23,706 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:39:23,706 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:39:23,706 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:39:23,707 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:39:23,707 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:39:23,707 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:39:23,707 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:39:23,707 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 12:39:23,707 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 12:39:23,707 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:39:23,707 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:39:23,708 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:39:23,708 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:39:23,708 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:39:23,708 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:39:23,708 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:39:23,708 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:39:23,709 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:39:23,709 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:39:23,709 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:39:23,709 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:39:23,709 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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/working_dir_58ea2e90-dfc9-4323-a1c9-807f8749e454/bin-2019/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 -> 59941807ee61f14408f8cb6acb0590ac0607fc0d [2018-11-28 12:39:23,735 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:39:23,743 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:39:23,745 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:39:23,746 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:39:23,746 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:39:23,747 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_58ea2e90-dfc9-4323-a1c9-807f8749e454/bin-2019/uautomizer/../../sv-benchmarks/c/list-properties/list_false-unreach-call_false-valid-memcleanup.i [2018-11-28 12:39:23,786 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_58ea2e90-dfc9-4323-a1c9-807f8749e454/bin-2019/uautomizer/data/bc43a1ec9/74ca861e62c546b9a4f0f0cd3643715e/FLAG56b5a2edb [2018-11-28 12:39:24,166 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:39:24,166 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_58ea2e90-dfc9-4323-a1c9-807f8749e454/sv-benchmarks/c/list-properties/list_false-unreach-call_false-valid-memcleanup.i [2018-11-28 12:39:24,177 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_58ea2e90-dfc9-4323-a1c9-807f8749e454/bin-2019/uautomizer/data/bc43a1ec9/74ca861e62c546b9a4f0f0cd3643715e/FLAG56b5a2edb [2018-11-28 12:39:24,548 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_58ea2e90-dfc9-4323-a1c9-807f8749e454/bin-2019/uautomizer/data/bc43a1ec9/74ca861e62c546b9a4f0f0cd3643715e [2018-11-28 12:39:24,550 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:39:24,550 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 12:39:24,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:39:24,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:39:24,553 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:39:24,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:39:24" (1/1) ... [2018-11-28 12:39:24,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69c4bfd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:24, skipping insertion in model container [2018-11-28 12:39:24,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:39:24" (1/1) ... [2018-11-28 12:39:24,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:39:24,583 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:39:24,760 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:39:24,769 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:39:24,838 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:39:24,876 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:39:24,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:24 WrapperNode [2018-11-28 12:39:24,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:39:24,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:39:24,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:39:24,877 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:39:24,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:24" (1/1) ... [2018-11-28 12:39:24,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:24" (1/1) ... [2018-11-28 12:39:24,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:24" (1/1) ... [2018-11-28 12:39:24,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:24" (1/1) ... [2018-11-28 12:39:24,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:24" (1/1) ... [2018-11-28 12:39:24,909 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:24" (1/1) ... [2018-11-28 12:39:24,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:24" (1/1) ... [2018-11-28 12:39:24,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:39:24,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:39:24,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:39:24,914 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:39:24,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_58ea2e90-dfc9-4323-a1c9-807f8749e454/bin-2019/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 [2018-11-28 12:39:24,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:39:24,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:39:24,948 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2018-11-28 12:39:24,948 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:39:24,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 12:39:24,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-28 12:39:24,949 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 12:39:24,949 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 12:39:24,949 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 12:39:24,949 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 12:39:24,949 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 12:39:24,949 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 12:39:24,949 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 12:39:24,949 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 12:39:24,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 12:39:24,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 12:39:24,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 12:39:24,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 12:39:24,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 12:39:24,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 12:39:24,950 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 12:39:24,950 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 12:39:24,950 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 12:39:24,951 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 12:39:24,951 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 12:39:24,951 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 12:39:24,951 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 12:39:24,951 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 12:39:24,951 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 12:39:24,951 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 12:39:24,951 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 12:39:24,951 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 12:39:24,951 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 12:39:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 12:39:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 12:39:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 12:39:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 12:39:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 12:39:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 12:39:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 12:39:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 12:39:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 12:39:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 12:39:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 12:39:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 12:39:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 12:39:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 12:39:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 12:39:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 12:39:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 12:39:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 12:39:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 12:39:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 12:39:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 12:39:24,954 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 12:39:24,954 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 12:39:24,954 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 12:39:24,954 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 12:39:24,954 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 12:39:24,954 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 12:39:24,954 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 12:39:24,954 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 12:39:24,954 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 12:39:24,954 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 12:39:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 12:39:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 12:39:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 12:39:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 12:39:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 12:39:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 12:39:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 12:39:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 12:39:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 12:39:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 12:39:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 12:39:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 12:39:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 12:39:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 12:39:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 12:39:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 12:39:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 12:39:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 12:39:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 12:39:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 12:39:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 12:39:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 12:39:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 12:39:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 12:39:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 12:39:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 12:39:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 12:39:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 12:39:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 12:39:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 12:39:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 12:39:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 12:39:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 12:39:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 12:39:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 12:39:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 12:39:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 12:39:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 12:39:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 12:39:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 12:39:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 12:39:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 12:39:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 12:39:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2018-11-28 12:39:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:39:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:39:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 12:39:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 12:39:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 12:39:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 12:39:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:39:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:39:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:39:25,297 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:39:25,298 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-28 12:39:25,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:39:25 BoogieIcfgContainer [2018-11-28 12:39:25,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:39:25,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:39:25,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:39:25,302 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:39:25,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:39:24" (1/3) ... [2018-11-28 12:39:25,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e583d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:39:25, skipping insertion in model container [2018-11-28 12:39:25,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:24" (2/3) ... [2018-11-28 12:39:25,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e583d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:39:25, skipping insertion in model container [2018-11-28 12:39:25,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:39:25" (3/3) ... [2018-11-28 12:39:25,304 INFO L112 eAbstractionObserver]: Analyzing ICFG list_false-unreach-call_false-valid-memcleanup.i [2018-11-28 12:39:25,310 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:39:25,316 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 25 error locations. [2018-11-28 12:39:25,325 INFO L257 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2018-11-28 12:39:25,341 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:39:25,341 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:39:25,341 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 12:39:25,342 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:39:25,342 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:39:25,342 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:39:25,342 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:39:25,342 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:39:25,342 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:39:25,353 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2018-11-28 12:39:25,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 12:39:25,359 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:39:25,360 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:39:25,361 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr12REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-28 12:39:25,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:25,365 INFO L82 PathProgramCache]: Analyzing trace with hash -2132532229, now seen corresponding path program 1 times [2018-11-28 12:39:25,366 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:39:25,367 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:39:25,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:25,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:39:25,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:39:25,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:39:25,484 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:39:25,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:39:25,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:39:25,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:39:25,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:39:25,497 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 4 states. [2018-11-28 12:39:25,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:39:25,681 INFO L93 Difference]: Finished difference Result 79 states and 87 transitions. [2018-11-28 12:39:25,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:39:25,683 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-28 12:39:25,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:39:25,688 INFO L225 Difference]: With dead ends: 79 [2018-11-28 12:39:25,688 INFO L226 Difference]: Without dead ends: 70 [2018-11-28 12:39:25,690 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:39:25,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-11-28 12:39:25,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2018-11-28 12:39:25,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-28 12:39:25,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2018-11-28 12:39:25,715 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 11 [2018-11-28 12:39:25,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:39:25,715 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2018-11-28 12:39:25,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:39:25,715 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2018-11-28 12:39:25,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 12:39:25,715 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:39:25,715 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:39:25,715 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr12REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-28 12:39:25,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:25,716 INFO L82 PathProgramCache]: Analyzing trace with hash -2132532228, now seen corresponding path program 1 times [2018-11-28 12:39:25,716 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:39:25,716 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:39:25,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:25,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:39:25,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:39:25,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:39:25,764 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:39:25,764 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:39:25,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:39:25,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:39:25,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:39:25,766 INFO L87 Difference]: Start difference. First operand 65 states and 75 transitions. Second operand 4 states. [2018-11-28 12:39:25,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:39:25,887 INFO L93 Difference]: Finished difference Result 88 states and 95 transitions. [2018-11-28 12:39:25,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:39:25,887 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-28 12:39:25,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:39:25,888 INFO L225 Difference]: With dead ends: 88 [2018-11-28 12:39:25,888 INFO L226 Difference]: Without dead ends: 88 [2018-11-28 12:39:25,889 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:39:25,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-11-28 12:39:25,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 79. [2018-11-28 12:39:25,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-11-28 12:39:25,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2018-11-28 12:39:25,895 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 11 [2018-11-28 12:39:25,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:39:25,895 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2018-11-28 12:39:25,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:39:25,896 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2018-11-28 12:39:25,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 12:39:25,896 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:39:25,896 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:39:25,897 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr12REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-28 12:39:25,897 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:25,897 INFO L82 PathProgramCache]: Analyzing trace with hash 2029512520, now seen corresponding path program 1 times [2018-11-28 12:39:25,897 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:39:25,897 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:39:25,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:25,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:39:25,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:39:25,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:39:25,957 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:39:25,957 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:39:25,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:39:25,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:39:25,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:39:25,958 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand 6 states. [2018-11-28 12:39:26,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:39:26,078 INFO L93 Difference]: Finished difference Result 112 states and 119 transitions. [2018-11-28 12:39:26,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:39:26,079 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-28 12:39:26,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:39:26,079 INFO L225 Difference]: With dead ends: 112 [2018-11-28 12:39:26,079 INFO L226 Difference]: Without dead ends: 112 [2018-11-28 12:39:26,080 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:39:26,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-11-28 12:39:26,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 82. [2018-11-28 12:39:26,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-11-28 12:39:26,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2018-11-28 12:39:26,084 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 19 [2018-11-28 12:39:26,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:39:26,084 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2018-11-28 12:39:26,084 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:39:26,084 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2018-11-28 12:39:26,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 12:39:26,085 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:39:26,085 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:39:26,085 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr12REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-28 12:39:26,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:26,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1001615762, now seen corresponding path program 1 times [2018-11-28 12:39:26,086 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:39:26,086 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:39:26,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:26,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:39:26,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:39:26,130 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:39:26,131 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:39:26,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 12:39:26,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:39:26,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:39:26,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:39:26,132 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 6 states. [2018-11-28 12:39:26,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:39:26,274 INFO L93 Difference]: Finished difference Result 105 states and 114 transitions. [2018-11-28 12:39:26,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:39:26,275 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-28 12:39:26,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:39:26,275 INFO L225 Difference]: With dead ends: 105 [2018-11-28 12:39:26,276 INFO L226 Difference]: Without dead ends: 105 [2018-11-28 12:39:26,276 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:39:26,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-11-28 12:39:26,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 85. [2018-11-28 12:39:26,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-11-28 12:39:26,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 96 transitions. [2018-11-28 12:39:26,280 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 96 transitions. Word has length 19 [2018-11-28 12:39:26,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:39:26,280 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 96 transitions. [2018-11-28 12:39:26,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:39:26,281 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 96 transitions. [2018-11-28 12:39:26,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 12:39:26,281 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:39:26,281 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:39:26,281 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr12REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-28 12:39:26,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:26,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1001615761, now seen corresponding path program 1 times [2018-11-28 12:39:26,282 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:39:26,282 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:39:26,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:26,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:39:26,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:39:26,342 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:39:26,342 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:39:26,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 12:39:26,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:39:26,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:39:26,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:39:26,343 INFO L87 Difference]: Start difference. First operand 85 states and 96 transitions. Second operand 6 states. [2018-11-28 12:39:26,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:39:26,562 INFO L93 Difference]: Finished difference Result 106 states and 116 transitions. [2018-11-28 12:39:26,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:39:26,562 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-28 12:39:26,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:39:26,563 INFO L225 Difference]: With dead ends: 106 [2018-11-28 12:39:26,563 INFO L226 Difference]: Without dead ends: 106 [2018-11-28 12:39:26,564 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-11-28 12:39:26,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-11-28 12:39:26,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 76. [2018-11-28 12:39:26,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-11-28 12:39:26,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2018-11-28 12:39:26,569 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 19 [2018-11-28 12:39:26,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:39:26,569 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2018-11-28 12:39:26,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:39:26,569 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2018-11-28 12:39:26,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 12:39:26,570 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:39:26,570 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:39:26,570 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr12REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-28 12:39:26,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:26,570 INFO L82 PathProgramCache]: Analyzing trace with hash 398800981, now seen corresponding path program 1 times [2018-11-28 12:39:26,570 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:39:26,570 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:39:26,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:26,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:39:26,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:39:26,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:39:26,616 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:39:26,617 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:39:26,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:39:26,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:39:26,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:39:26,617 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 6 states. [2018-11-28 12:39:26,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:39:26,703 INFO L93 Difference]: Finished difference Result 101 states and 108 transitions. [2018-11-28 12:39:26,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:39:26,703 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-28 12:39:26,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:39:26,704 INFO L225 Difference]: With dead ends: 101 [2018-11-28 12:39:26,704 INFO L226 Difference]: Without dead ends: 101 [2018-11-28 12:39:26,704 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:39:26,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-11-28 12:39:26,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 78. [2018-11-28 12:39:26,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-11-28 12:39:26,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 87 transitions. [2018-11-28 12:39:26,708 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 87 transitions. Word has length 21 [2018-11-28 12:39:26,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:39:26,709 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 87 transitions. [2018-11-28 12:39:26,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:39:26,709 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 87 transitions. [2018-11-28 12:39:26,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 12:39:26,710 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:39:26,710 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:39:26,710 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr12REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-28 12:39:26,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:26,710 INFO L82 PathProgramCache]: Analyzing trace with hash 102986752, now seen corresponding path program 1 times [2018-11-28 12:39:26,710 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:39:26,711 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:39:26,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:26,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:39:26,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:39:26,750 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:39:26,750 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:39:26,750 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 12:39:26,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:39:26,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:39:26,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:39:26,751 INFO L87 Difference]: Start difference. First operand 78 states and 87 transitions. Second operand 6 states. [2018-11-28 12:39:26,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:39:26,849 INFO L93 Difference]: Finished difference Result 86 states and 93 transitions. [2018-11-28 12:39:26,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:39:26,849 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-28 12:39:26,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:39:26,850 INFO L225 Difference]: With dead ends: 86 [2018-11-28 12:39:26,850 INFO L226 Difference]: Without dead ends: 86 [2018-11-28 12:39:26,850 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:39:26,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-11-28 12:39:26,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 76. [2018-11-28 12:39:26,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-11-28 12:39:26,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2018-11-28 12:39:26,855 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 21 [2018-11-28 12:39:26,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:39:26,855 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2018-11-28 12:39:26,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:39:26,856 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2018-11-28 12:39:26,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 12:39:26,856 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:39:26,856 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:39:26,856 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr12REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-28 12:39:26,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:26,857 INFO L82 PathProgramCache]: Analyzing trace with hash 102986753, now seen corresponding path program 1 times [2018-11-28 12:39:26,857 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:39:26,857 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:39:26,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:26,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:39:26,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:39:26,916 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:39:26,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:39:26,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 12:39:26,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:39:26,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:39:26,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:39:26,917 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 6 states. [2018-11-28 12:39:27,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:39:27,074 INFO L93 Difference]: Finished difference Result 83 states and 91 transitions. [2018-11-28 12:39:27,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:39:27,075 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-28 12:39:27,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:39:27,076 INFO L225 Difference]: With dead ends: 83 [2018-11-28 12:39:27,076 INFO L226 Difference]: Without dead ends: 83 [2018-11-28 12:39:27,076 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-11-28 12:39:27,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-11-28 12:39:27,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 64. [2018-11-28 12:39:27,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-28 12:39:27,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2018-11-28 12:39:27,078 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 21 [2018-11-28 12:39:27,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:39:27,079 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2018-11-28 12:39:27,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:39:27,079 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2018-11-28 12:39:27,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 12:39:27,079 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:39:27,079 INFO L402 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] [2018-11-28 12:39:27,079 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr12REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-28 12:39:27,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:27,080 INFO L82 PathProgramCache]: Analyzing trace with hash -523696583, now seen corresponding path program 1 times [2018-11-28 12:39:27,080 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:39:27,080 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:39:27,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:27,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:39:27,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:39:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:39:27,107 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:39:27,117 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 12:39:27,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:39:27 BoogieIcfgContainer [2018-11-28 12:39:27,126 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:39:27,127 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:39:27,127 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:39:27,127 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:39:27,127 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:39:25" (3/4) ... [2018-11-28 12:39:27,129 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 12:39:27,132 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 12:39:27,162 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_58ea2e90-dfc9-4323-a1c9-807f8749e454/bin-2019/uautomizer/witness.graphml [2018-11-28 12:39:27,162 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:39:27,163 INFO L168 Benchmark]: Toolchain (without parser) took 2612.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 955.3 MB in the beginning and 1.1 GB in the end (delta: -190.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:39:27,163 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 984.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:39:27,164 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.2 MB). Free memory was 955.3 MB in the beginning and 1.1 GB in the end (delta: -115.6 MB). Peak memory consumption was 29.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:39:27,164 INFO L168 Benchmark]: Boogie Preprocessor took 36.71 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:39:27,165 INFO L168 Benchmark]: RCFGBuilder took 384.21 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: 51.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:39:27,165 INFO L168 Benchmark]: TraceAbstraction took 1827.44 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 89.7 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -129.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:39:27,165 INFO L168 Benchmark]: Witness Printer took 35.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:39:27,167 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 984.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 325.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.2 MB). Free memory was 955.3 MB in the beginning and 1.1 GB in the end (delta: -115.6 MB). Peak memory consumption was 29.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.71 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 384.21 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: 51.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1827.44 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 89.7 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -129.5 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 35.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 626]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L627] List a = (List) malloc(sizeof(struct node)); VAL [a={11:0}, malloc(sizeof(struct node))={11:0}] [L628] COND FALSE !(a == 0) VAL [a={11:0}, malloc(sizeof(struct node))={11:0}] [L629] List t; [L630] List p = a; VAL [a={11:0}, malloc(sizeof(struct node))={11:0}, p={11:0}] [L631] COND FALSE !(__VERIFIER_nondet_int()) [L638] COND FALSE !(__VERIFIER_nondet_int()) [L645] p->h = 3 VAL [a={11:0}, malloc(sizeof(struct node))={11:0}, p={11:0}] [L646] p = a VAL [a={11:0}, malloc(sizeof(struct node))={11:0}, p={11:0}] [L647] EXPR p->h VAL [a={11:0}, malloc(sizeof(struct node))={11:0}, p={11:0}, p->h=3] [L647] COND FALSE !(p->h == 2) [L649] EXPR p->h VAL [a={11:0}, malloc(sizeof(struct node))={11:0}, p={11:0}, p->h=3] [L649] COND FALSE !(p->h == 1) [L651] EXPR p->h VAL [a={11:0}, malloc(sizeof(struct node))={11:0}, p={11:0}, p->h=3] [L651] COND FALSE !(p->h != 3) [L653] return 0; VAL [\result=0, a={11:0}, malloc(sizeof(struct node))={11:0}, p={11:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 25 error locations. UNSAFE Result, 1.7s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 349 SDtfs, 596 SDslu, 757 SDs, 0 SdLazy, 1010 SolverSat, 99 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 146 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 134 ConstructedInterpolants, 0 QuantifiedInterpolants, 8760 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...