./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-memsafety/fillarray.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_44454ea7-7b3b-4e75-bd9d-a588e784b49c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_44454ea7-7b3b-4e75-bd9d-a588e784b49c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_44454ea7-7b3b-4e75-bd9d-a588e784b49c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_44454ea7-7b3b-4e75-bd9d-a588e784b49c/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray.i -s /tmp/vcloud-vcloud-master/worker/working_dir_44454ea7-7b3b-4e75-bd9d-a588e784b49c/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_44454ea7-7b3b-4e75-bd9d-a588e784b49c/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 317acdded5b2f05710e753bf8fd3c2308f1aec62 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:26:20,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:26:20,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:26:20,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:26:20,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:26:20,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:26:20,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:26:20,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:26:20,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:26:20,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:26:20,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:26:20,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:26:20,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:26:20,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:26:20,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:26:20,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:26:20,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:26:20,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:26:20,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:26:20,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:26:20,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:26:20,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:26:20,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:26:20,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:26:20,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:26:20,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:26:20,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:26:20,829 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:26:20,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:26:20,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:26:20,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:26:20,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:26:20,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:26:20,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:26:20,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:26:20,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:26:20,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:26:20,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:26:20,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:26:20,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:26:20,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:26:20,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_44454ea7-7b3b-4e75-bd9d-a588e784b49c/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-10-22 11:26:20,846 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:26:20,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:26:20,847 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:26:20,847 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:26:20,847 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:26:20,848 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:26:20,848 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:26:20,848 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:26:20,848 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:26:20,848 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:26:20,849 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:26:20,849 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:26:20,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:26:20,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:26:20,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:26:20,850 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:26:20,850 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:26:20,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:26:20,850 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:26:20,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:26:20,851 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:26:20,851 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:26:20,851 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:26:20,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:26:20,851 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:26:20,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:26:20,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:26:20,852 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:26:20,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:26:20,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:26:20,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:26:20,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:26:20,853 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:26:20,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:26:20,854 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:26:20,854 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_44454ea7-7b3b-4e75-bd9d-a588e784b49c/bin/utaipan 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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan 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 -> 317acdded5b2f05710e753bf8fd3c2308f1aec62 [2019-10-22 11:26:20,878 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:26:20,887 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:26:20,890 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:26:20,891 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:26:20,892 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:26:20,892 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_44454ea7-7b3b-4e75-bd9d-a588e784b49c/bin/utaipan/../../sv-benchmarks/c/pthread-memsafety/fillarray.i [2019-10-22 11:26:20,936 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_44454ea7-7b3b-4e75-bd9d-a588e784b49c/bin/utaipan/data/e1a384902/99b6dc069b6f4431889d262544a35e68/FLAGa5e003bbf [2019-10-22 11:26:21,397 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:26:21,399 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_44454ea7-7b3b-4e75-bd9d-a588e784b49c/sv-benchmarks/c/pthread-memsafety/fillarray.i [2019-10-22 11:26:21,418 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_44454ea7-7b3b-4e75-bd9d-a588e784b49c/bin/utaipan/data/e1a384902/99b6dc069b6f4431889d262544a35e68/FLAGa5e003bbf [2019-10-22 11:26:21,725 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_44454ea7-7b3b-4e75-bd9d-a588e784b49c/bin/utaipan/data/e1a384902/99b6dc069b6f4431889d262544a35e68 [2019-10-22 11:26:21,728 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:26:21,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:26:21,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:21,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:26:21,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:26:21,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:21" (1/1) ... [2019-10-22 11:26:21,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@561112c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:21, skipping insertion in model container [2019-10-22 11:26:21,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:21" (1/1) ... [2019-10-22 11:26:21,744 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:26:21,793 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:26:22,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:22,306 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:26:22,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:22,477 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:26:22,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:22 WrapperNode [2019-10-22 11:26:22,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:22,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:22,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:26:22,480 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:26:22,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:22" (1/1) ... [2019-10-22 11:26:22,506 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:22" (1/1) ... [2019-10-22 11:26:22,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:22,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:26:22,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:26:22,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:26:22,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:22" (1/1) ... [2019-10-22 11:26:22,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:22" (1/1) ... [2019-10-22 11:26:22,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:22" (1/1) ... [2019-10-22 11:26:22,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:22" (1/1) ... [2019-10-22 11:26:22,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:22" (1/1) ... [2019-10-22 11:26:22,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:22" (1/1) ... [2019-10-22 11:26:22,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:22" (1/1) ... [2019-10-22 11:26:22,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:26:22,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:26:22,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:26:22,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:26:22,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_44454ea7-7b3b-4e75-bd9d-a588e784b49c/bin/utaipan/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 [2019-10-22 11:26:22,629 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2019-10-22 11:26:22,629 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2019-10-22 11:26:22,629 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2019-10-22 11:26:22,630 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2019-10-22 11:26:22,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:26:22,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:26:22,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:26:22,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 11:26:22,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:26:22,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:26:22,632 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 11:26:23,034 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:26:23,034 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 11:26:23,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:23 BoogieIcfgContainer [2019-10-22 11:26:23,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:26:23,036 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:26:23,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:26:23,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:26:23,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:26:21" (1/3) ... [2019-10-22 11:26:23,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7982bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:23, skipping insertion in model container [2019-10-22 11:26:23,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:22" (2/3) ... [2019-10-22 11:26:23,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7982bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:23, skipping insertion in model container [2019-10-22 11:26:23,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:23" (3/3) ... [2019-10-22 11:26:23,042 INFO L109 eAbstractionObserver]: Analyzing ICFG fillarray.i [2019-10-22 11:26:23,071 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,071 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,071 WARN L315 ript$VariableManager]: TermVariabe Thread1_t1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,071 WARN L315 ript$VariableManager]: TermVariabe Thread1_t1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,072 WARN L315 ript$VariableManager]: TermVariabe Thread1_t1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,072 WARN L315 ript$VariableManager]: TermVariabe Thread1_t1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,072 WARN L315 ript$VariableManager]: TermVariabe Thread1_t1_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,072 WARN L315 ript$VariableManager]: TermVariabe Thread1_t1_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,072 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,073 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,073 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,073 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,073 WARN L315 ript$VariableManager]: TermVariabe Thread1_t1_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,073 WARN L315 ript$VariableManager]: TermVariabe Thread1_t1_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,074 WARN L315 ript$VariableManager]: TermVariabe Thread1_t1_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,074 WARN L315 ript$VariableManager]: TermVariabe Thread1_t1_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,074 WARN L315 ript$VariableManager]: TermVariabe Thread1_t1_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,074 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,075 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,075 WARN L315 ript$VariableManager]: TermVariabe Thread0_t2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,075 WARN L315 ript$VariableManager]: TermVariabe Thread0_t2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,075 WARN L315 ript$VariableManager]: TermVariabe Thread0_t2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,075 WARN L315 ript$VariableManager]: TermVariabe Thread0_t2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,075 WARN L315 ript$VariableManager]: TermVariabe Thread0_t2_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,075 WARN L315 ript$VariableManager]: TermVariabe Thread0_t2_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,076 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,077 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,077 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t2_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,078 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t2_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,078 WARN L315 ript$VariableManager]: TermVariabe Thread0_t2_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,078 WARN L315 ript$VariableManager]: TermVariabe Thread0_t2_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,078 WARN L315 ript$VariableManager]: TermVariabe Thread0_t2_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,078 WARN L315 ript$VariableManager]: TermVariabe Thread0_t2_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,079 WARN L315 ript$VariableManager]: TermVariabe Thread0_t2_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:23,089 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:26:23,097 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2019-10-22 11:26:23,107 INFO L249 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2019-10-22 11:26:23,124 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:26:23,124 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:26:23,124 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:26:23,125 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:26:23,125 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:26:23,125 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:26:23,125 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:26:23,125 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:26:23,134 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 76 transitions [2019-10-22 11:26:23,278 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2828 states. [2019-10-22 11:26:23,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2828 states. [2019-10-22 11:26:23,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 11:26:23,288 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:23,289 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:23,291 INFO L410 AbstractCegarLoop]: === Iteration 1 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, t1Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2019-10-22 11:26:23,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:23,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1325641880, now seen corresponding path program 1 times [2019-10-22 11:26:23,306 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:23,306 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507044857] [2019-10-22 11:26:23,306 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:23,306 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:23,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:23,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:23,523 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507044857] [2019-10-22 11:26:23,526 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:23,526 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:26:23,527 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10772904] [2019-10-22 11:26:23,530 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:23,532 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:23,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:23,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:23,547 INFO L87 Difference]: Start difference. First operand 2828 states. Second operand 3 states. [2019-10-22 11:26:23,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:23,703 INFO L93 Difference]: Finished difference Result 2827 states and 8215 transitions. [2019-10-22 11:26:23,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:23,704 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-10-22 11:26:23,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:23,746 INFO L225 Difference]: With dead ends: 2827 [2019-10-22 11:26:23,746 INFO L226 Difference]: Without dead ends: 2785 [2019-10-22 11:26:23,747 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:23,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2019-10-22 11:26:23,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 2785. [2019-10-22 11:26:23,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2785 states. [2019-10-22 11:26:23,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 8101 transitions. [2019-10-22 11:26:23,932 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 8101 transitions. Word has length 18 [2019-10-22 11:26:23,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:23,933 INFO L462 AbstractCegarLoop]: Abstraction has 2785 states and 8101 transitions. [2019-10-22 11:26:23,933 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:23,933 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 8101 transitions. [2019-10-22 11:26:23,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 11:26:23,934 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:23,934 INFO L380 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] [2019-10-22 11:26:23,934 INFO L410 AbstractCegarLoop]: === Iteration 2 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, t1Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2019-10-22 11:26:23,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:23,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1026843953, now seen corresponding path program 1 times [2019-10-22 11:26:23,935 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:23,935 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697419850] [2019-10-22 11:26:23,935 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:23,935 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:23,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:24,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:24,015 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697419850] [2019-10-22 11:26:24,015 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:24,015 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:26:24,016 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700745635] [2019-10-22 11:26:24,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:24,017 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:24,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:24,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:24,018 INFO L87 Difference]: Start difference. First operand 2785 states and 8101 transitions. Second operand 3 states. [2019-10-22 11:26:24,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:24,102 INFO L93 Difference]: Finished difference Result 2784 states and 8100 transitions. [2019-10-22 11:26:24,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:24,103 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-10-22 11:26:24,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:24,116 INFO L225 Difference]: With dead ends: 2784 [2019-10-22 11:26:24,117 INFO L226 Difference]: Without dead ends: 2784 [2019-10-22 11:26:24,117 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:24,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2019-10-22 11:26:24,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2784. [2019-10-22 11:26:24,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2784 states. [2019-10-22 11:26:24,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 8100 transitions. [2019-10-22 11:26:24,211 INFO L78 Accepts]: Start accepts. Automaton has 2784 states and 8100 transitions. Word has length 22 [2019-10-22 11:26:24,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:24,211 INFO L462 AbstractCegarLoop]: Abstraction has 2784 states and 8100 transitions. [2019-10-22 11:26:24,212 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:24,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2784 states and 8100 transitions. [2019-10-22 11:26:24,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 11:26:24,212 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:24,212 INFO L380 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] [2019-10-22 11:26:24,213 INFO L410 AbstractCegarLoop]: === Iteration 3 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, t1Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2019-10-22 11:26:24,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:24,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1026843954, now seen corresponding path program 1 times [2019-10-22 11:26:24,213 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:24,213 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550328500] [2019-10-22 11:26:24,213 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:24,214 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:24,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:24,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:24,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:24,306 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550328500] [2019-10-22 11:26:24,306 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:24,307 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:24,307 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516242439] [2019-10-22 11:26:24,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:26:24,307 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:24,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:26:24,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:26:24,308 INFO L87 Difference]: Start difference. First operand 2784 states and 8100 transitions. Second operand 4 states. [2019-10-22 11:26:24,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:24,411 INFO L93 Difference]: Finished difference Result 2783 states and 8099 transitions. [2019-10-22 11:26:24,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:26:24,412 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-10-22 11:26:24,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:24,425 INFO L225 Difference]: With dead ends: 2783 [2019-10-22 11:26:24,425 INFO L226 Difference]: Without dead ends: 2783 [2019-10-22 11:26:24,425 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:26:24,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2783 states. [2019-10-22 11:26:24,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2783 to 2783. [2019-10-22 11:26:24,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2783 states. [2019-10-22 11:26:24,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2783 states to 2783 states and 8099 transitions. [2019-10-22 11:26:24,558 INFO L78 Accepts]: Start accepts. Automaton has 2783 states and 8099 transitions. Word has length 22 [2019-10-22 11:26:24,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:24,558 INFO L462 AbstractCegarLoop]: Abstraction has 2783 states and 8099 transitions. [2019-10-22 11:26:24,558 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:26:24,559 INFO L276 IsEmpty]: Start isEmpty. Operand 2783 states and 8099 transitions. [2019-10-22 11:26:24,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 11:26:24,559 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:24,559 INFO L380 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] [2019-10-22 11:26:24,559 INFO L410 AbstractCegarLoop]: === Iteration 4 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, t1Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2019-10-22 11:26:24,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:24,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1951289611, now seen corresponding path program 1 times [2019-10-22 11:26:24,561 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:24,561 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345498776] [2019-10-22 11:26:24,561 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:24,561 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:24,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:24,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:24,625 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345498776] [2019-10-22 11:26:24,625 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:24,625 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:26:24,625 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071727649] [2019-10-22 11:26:24,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:24,626 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:24,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:24,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:24,626 INFO L87 Difference]: Start difference. First operand 2783 states and 8099 transitions. Second operand 3 states. [2019-10-22 11:26:24,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:24,679 INFO L93 Difference]: Finished difference Result 2771 states and 8075 transitions. [2019-10-22 11:26:24,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:24,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-22 11:26:24,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:24,692 INFO L225 Difference]: With dead ends: 2771 [2019-10-22 11:26:24,692 INFO L226 Difference]: Without dead ends: 2771 [2019-10-22 11:26:24,693 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:24,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2771 states. [2019-10-22 11:26:24,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2771 to 2771. [2019-10-22 11:26:24,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2771 states. [2019-10-22 11:26:24,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 8075 transitions. [2019-10-22 11:26:24,775 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 8075 transitions. Word has length 25 [2019-10-22 11:26:24,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:24,775 INFO L462 AbstractCegarLoop]: Abstraction has 2771 states and 8075 transitions. [2019-10-22 11:26:24,775 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:24,775 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 8075 transitions. [2019-10-22 11:26:24,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 11:26:24,778 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:24,778 INFO L380 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] [2019-10-22 11:26:24,778 INFO L410 AbstractCegarLoop]: === Iteration 5 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, t1Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2019-10-22 11:26:24,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:24,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1951289610, now seen corresponding path program 1 times [2019-10-22 11:26:24,779 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:24,779 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381633672] [2019-10-22 11:26:24,779 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:24,779 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:24,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:24,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:24,820 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381633672] [2019-10-22 11:26:24,820 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:24,821 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:26:24,821 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663150365] [2019-10-22 11:26:24,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:24,821 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:24,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:24,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:24,822 INFO L87 Difference]: Start difference. First operand 2771 states and 8075 transitions. Second operand 3 states. [2019-10-22 11:26:24,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:24,885 INFO L93 Difference]: Finished difference Result 2759 states and 8051 transitions. [2019-10-22 11:26:24,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:24,885 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-22 11:26:24,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:24,896 INFO L225 Difference]: With dead ends: 2759 [2019-10-22 11:26:24,897 INFO L226 Difference]: Without dead ends: 2759 [2019-10-22 11:26:24,897 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:24,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2759 states. [2019-10-22 11:26:24,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2759 to 2759. [2019-10-22 11:26:24,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2759 states. [2019-10-22 11:26:24,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2759 states to 2759 states and 8051 transitions. [2019-10-22 11:26:24,966 INFO L78 Accepts]: Start accepts. Automaton has 2759 states and 8051 transitions. Word has length 25 [2019-10-22 11:26:24,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:24,966 INFO L462 AbstractCegarLoop]: Abstraction has 2759 states and 8051 transitions. [2019-10-22 11:26:24,966 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:24,967 INFO L276 IsEmpty]: Start isEmpty. Operand 2759 states and 8051 transitions. [2019-10-22 11:26:24,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:26:24,967 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:24,967 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:24,968 INFO L410 AbstractCegarLoop]: === Iteration 6 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, t1Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2019-10-22 11:26:24,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:24,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1513412249, now seen corresponding path program 1 times [2019-10-22 11:26:24,968 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:24,968 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253174436] [2019-10-22 11:26:24,968 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:24,969 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:24,969 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:24,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:24,999 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253174436] [2019-10-22 11:26:24,999 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:24,999 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:25,000 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246021756] [2019-10-22 11:26:25,000 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:26:25,000 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:25,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:26:25,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:26:25,001 INFO L87 Difference]: Start difference. First operand 2759 states and 8051 transitions. Second operand 4 states. [2019-10-22 11:26:25,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:25,030 INFO L93 Difference]: Finished difference Result 2615 states and 7619 transitions. [2019-10-22 11:26:25,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:26:25,030 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-10-22 11:26:25,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:25,041 INFO L225 Difference]: With dead ends: 2615 [2019-10-22 11:26:25,041 INFO L226 Difference]: Without dead ends: 2615 [2019-10-22 11:26:25,042 INFO L600 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 [2019-10-22 11:26:25,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2615 states. [2019-10-22 11:26:25,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2615 to 2615. [2019-10-22 11:26:25,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2615 states. [2019-10-22 11:26:25,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2615 states to 2615 states and 7619 transitions. [2019-10-22 11:26:25,103 INFO L78 Accepts]: Start accepts. Automaton has 2615 states and 7619 transitions. Word has length 28 [2019-10-22 11:26:25,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:25,104 INFO L462 AbstractCegarLoop]: Abstraction has 2615 states and 7619 transitions. [2019-10-22 11:26:25,104 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:26:25,104 INFO L276 IsEmpty]: Start isEmpty. Operand 2615 states and 7619 transitions. [2019-10-22 11:26:25,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 11:26:25,105 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:25,105 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:25,105 INFO L410 AbstractCegarLoop]: === Iteration 7 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, t1Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2019-10-22 11:26:25,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:25,105 INFO L82 PathProgramCache]: Analyzing trace with hash 328860719, now seen corresponding path program 1 times [2019-10-22 11:26:25,105 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:25,106 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765020983] [2019-10-22 11:26:25,106 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:25,106 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:25,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:25,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:25,147 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765020983] [2019-10-22 11:26:25,147 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:25,147 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:25,147 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825293524] [2019-10-22 11:26:25,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:26:25,147 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:25,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:26:25,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:26:25,148 INFO L87 Difference]: Start difference. First operand 2615 states and 7619 transitions. Second operand 4 states. [2019-10-22 11:26:25,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:25,190 INFO L93 Difference]: Finished difference Result 2471 states and 7187 transitions. [2019-10-22 11:26:25,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:26:25,190 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-10-22 11:26:25,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:25,202 INFO L225 Difference]: With dead ends: 2471 [2019-10-22 11:26:25,202 INFO L226 Difference]: Without dead ends: 2471 [2019-10-22 11:26:25,203 INFO L600 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 [2019-10-22 11:26:25,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2019-10-22 11:26:25,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2471. [2019-10-22 11:26:25,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2471 states. [2019-10-22 11:26:25,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2471 states to 2471 states and 7187 transitions. [2019-10-22 11:26:25,265 INFO L78 Accepts]: Start accepts. Automaton has 2471 states and 7187 transitions. Word has length 29 [2019-10-22 11:26:25,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:25,266 INFO L462 AbstractCegarLoop]: Abstraction has 2471 states and 7187 transitions. [2019-10-22 11:26:25,266 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:26:25,266 INFO L276 IsEmpty]: Start isEmpty. Operand 2471 states and 7187 transitions. [2019-10-22 11:26:25,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 11:26:25,267 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:25,267 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:25,267 INFO L410 AbstractCegarLoop]: === Iteration 8 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, t1Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2019-10-22 11:26:25,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:25,267 INFO L82 PathProgramCache]: Analyzing trace with hash -311916484, now seen corresponding path program 1 times [2019-10-22 11:26:25,268 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:25,268 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808097079] [2019-10-22 11:26:25,268 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:25,268 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:25,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:25,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:25,363 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808097079] [2019-10-22 11:26:25,363 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:25,363 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:26:25,363 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710044766] [2019-10-22 11:26:25,364 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:26:25,364 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:25,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:26:25,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:26:25,364 INFO L87 Difference]: Start difference. First operand 2471 states and 7187 transitions. Second operand 8 states. [2019-10-22 11:26:25,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:25,716 INFO L93 Difference]: Finished difference Result 3416 states and 9917 transitions. [2019-10-22 11:26:25,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:26:25,716 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2019-10-22 11:26:25,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:25,725 INFO L225 Difference]: With dead ends: 3416 [2019-10-22 11:26:25,726 INFO L226 Difference]: Without dead ends: 3416 [2019-10-22 11:26:25,726 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-10-22 11:26:25,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3416 states. [2019-10-22 11:26:25,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3416 to 2924. [2019-10-22 11:26:25,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2924 states. [2019-10-22 11:26:25,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2924 states to 2924 states and 8741 transitions. [2019-10-22 11:26:25,821 INFO L78 Accepts]: Start accepts. Automaton has 2924 states and 8741 transitions. Word has length 30 [2019-10-22 11:26:25,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:25,821 INFO L462 AbstractCegarLoop]: Abstraction has 2924 states and 8741 transitions. [2019-10-22 11:26:25,821 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:26:25,821 INFO L276 IsEmpty]: Start isEmpty. Operand 2924 states and 8741 transitions. [2019-10-22 11:26:25,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 11:26:25,823 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:25,824 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:25,824 INFO L410 AbstractCegarLoop]: === Iteration 9 === [t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, t1Err1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION]=== [2019-10-22 11:26:25,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:25,824 INFO L82 PathProgramCache]: Analyzing trace with hash -311916483, now seen corresponding path program 1 times [2019-10-22 11:26:25,825 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:25,825 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376899600] [2019-10-22 11:26:25,825 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:25,825 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:25,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:26:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:26:25,891 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:26:25,892 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:26:25,932 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 11:26:25,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:26:25 BasicIcfg [2019-10-22 11:26:25,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:26:25,934 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:26:25,934 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:26:25,934 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:26:25,935 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:23" (3/4) ... [2019-10-22 11:26:25,937 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:26:26,000 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_44454ea7-7b3b-4e75-bd9d-a588e784b49c/bin/utaipan/witness.graphml [2019-10-22 11:26:26,001 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:26:26,003 INFO L168 Benchmark]: Toolchain (without parser) took 4273.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 216.5 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -207.4 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:26,003 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:26,004 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -145.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:26,004 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.86 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. [2019-10-22 11:26:26,004 INFO L168 Benchmark]: Boogie Preprocessor took 41.89 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. [2019-10-22 11:26:26,005 INFO L168 Benchmark]: RCFGBuilder took 460.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:26,005 INFO L168 Benchmark]: TraceAbstraction took 2897.65 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 80.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -97.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:26,005 INFO L168 Benchmark]: Witness Printer took 66.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:26,008 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 748.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -145.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.86 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. * Boogie Preprocessor took 41.89 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. * RCFGBuilder took 460.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2897.65 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 80.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -97.0 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 66.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1044]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1037] 0 int size; VAL [size=0] [L1038] 0 int ind; VAL [ind=0, size=0] [L1039] 0 int j = 2, i = 1; VAL [i=1, ind=0, j=2, size=0] [L1057] 0 size = __VERIFIER_nondet_int() VAL [i=1, ind=0, j=2, size=2] [L1058] COND FALSE 0 !(size < 1 || size > 20) VAL [i=1, ind=0, j=2, size=2] [L1061] 0 int *a = (int *)malloc(size); VAL [i=1, ind=0, j=2, size=2] [L1062] 0 pthread_t id1, id2; VAL [i=1, ind=0, j=2, size=2] [L1063] 0 ind = 0 VAL [i=1, ind=0, j=2, size=2] [L1064] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, a) VAL [arg={7:0}, i=1, ind=0, j=2, size=2] [L1041] 1 int *a = (int *)arg; VAL [a={7:0}, arg={7:0}, arg={7:0}, i=1, ind=0, j=2, size=2] [L1042] COND TRUE 1 ind < size - 1 VAL [a={7:0}, arg={7:0}, arg={7:0}, i=1, ind=0, j=2, size=2] [L1043] 1 ++ind VAL [a={7:0}, arg={7:0}, arg={7:0}, i=1, ind=1, j=2, size=2] [L1044] 1 a[ind] = i - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 98 locations, 16 error locations. Result: UNSAFE, OverallTime: 2.8s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 525 SDtfs, 556 SDslu, 654 SDs, 0 SdLazy, 357 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2924occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 492 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 229 NumberOfCodeBlocks, 229 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 191 ConstructedInterpolants, 0 QuantifiedInterpolants, 11146 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 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...