./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound100.c -s /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 649aa7851c03f89873183839941c0b3582fd1bc1 ................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound100.c -s /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 649aa7851c03f89873183839941c0b3582fd1bc1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:19:01,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:19:01,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:19:01,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:19:01,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:19:01,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:19:01,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:19:01,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:19:01,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:19:01,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:19:01,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:19:01,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:19:01,890 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:19:01,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:19:01,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:19:01,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:19:01,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:19:01,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:19:01,902 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:19:01,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:19:01,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:19:01,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:19:01,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:19:01,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:19:01,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:19:01,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:19:01,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:19:01,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:19:01,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:19:01,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:19:01,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:19:01,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:19:01,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:19:01,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:19:01,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:19:01,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:19:01,939 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:19:01,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:19:01,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:19:01,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:19:01,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:19:01,946 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:19:02,000 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:19:02,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:19:02,003 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:19:02,004 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:19:02,004 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:19:02,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:19:02,005 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:19:02,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:19:02,005 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:19:02,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:19:02,007 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:19:02,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:19:02,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:19:02,008 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:19:02,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:19:02,009 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:19:02,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:19:02,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:19:02,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:19:02,010 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:19:02,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:19:02,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:19:02,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:19:02,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:19:02,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:19:02,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:19:02,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:19:02,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:19:02,013 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:19:02,014 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 649aa7851c03f89873183839941c0b3582fd1bc1 [2020-12-01 15:19:02,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:19:02,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:19:02,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:19:02,400 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:19:02,402 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:19:02,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound100.c [2020-12-01 15:19:02,528 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/data/64f3e1cd6/e59d059fd82144b8936e3de0ad8be61f/FLAG7710257cb [2020-12-01 15:19:03,046 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:19:03,047 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound100.c [2020-12-01 15:19:03,055 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/data/64f3e1cd6/e59d059fd82144b8936e3de0ad8be61f/FLAG7710257cb [2020-12-01 15:19:03,435 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/data/64f3e1cd6/e59d059fd82144b8936e3de0ad8be61f [2020-12-01 15:19:03,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:19:03,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:19:03,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:19:03,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:19:03,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:19:03,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:19:03" (1/1) ... [2020-12-01 15:19:03,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d8cd5a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:03, skipping insertion in model container [2020-12-01 15:19:03,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:19:03" (1/1) ... [2020-12-01 15:19:03,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:19:03,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:19:03,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:19:03,862 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:19:03,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:19:03,922 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:19:03,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:03 WrapperNode [2020-12-01 15:19:03,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:19:03,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:19:03,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:19:03,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:19:03,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:03" (1/1) ... [2020-12-01 15:19:03,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:03" (1/1) ... [2020-12-01 15:19:04,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:19:04,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:19:04,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:19:04,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:19:04,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:03" (1/1) ... [2020-12-01 15:19:04,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:03" (1/1) ... [2020-12-01 15:19:04,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:03" (1/1) ... [2020-12-01 15:19:04,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:03" (1/1) ... [2020-12-01 15:19:04,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:03" (1/1) ... [2020-12-01 15:19:04,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:03" (1/1) ... [2020-12-01 15:19:04,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:03" (1/1) ... [2020-12-01 15:19:04,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:19:04,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:19:04,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:19:04,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:19:04,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:19:04,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:19:04,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:19:04,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:19:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:19:04,418 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:19:04,419 INFO L298 CfgBuilder]: Removed 25 assume(true) statements. [2020-12-01 15:19:04,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:19:04 BoogieIcfgContainer [2020-12-01 15:19:04,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:19:04,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:19:04,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:19:04,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:19:04,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:19:03" (1/3) ... [2020-12-01 15:19:04,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b461f53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:19:04, skipping insertion in model container [2020-12-01 15:19:04,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:03" (2/3) ... [2020-12-01 15:19:04,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b461f53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:19:04, skipping insertion in model container [2020-12-01 15:19:04,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:19:04" (3/3) ... [2020-12-01 15:19:04,432 INFO L111 eAbstractionObserver]: Analyzing ICFG lcm2_valuebound100.c [2020-12-01 15:19:04,449 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:19:04,452 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-01 15:19:04,472 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-01 15:19:04,509 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:19:04,510 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:19:04,521 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:19:04,521 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:19:04,521 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:19:04,521 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:19:04,522 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:19:04,522 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:19:04,539 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-12-01 15:19:04,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 15:19:04,545 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:04,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:19:04,547 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:04,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:04,554 INFO L82 PathProgramCache]: Analyzing trace with hash 822857436, now seen corresponding path program 1 times [2020-12-01 15:19:04,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:19:04,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240169556] [2020-12-01 15:19:04,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:19:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:04,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:19:04,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240169556] [2020-12-01 15:19:04,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:19:04,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:19:04,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130202484] [2020-12-01 15:19:04,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:19:04,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:19:04,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:19:04,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:19:04,859 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2020-12-01 15:19:04,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:19:04,881 INFO L93 Difference]: Finished difference Result 53 states and 74 transitions. [2020-12-01 15:19:04,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:19:04,882 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2020-12-01 15:19:04,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:19:04,893 INFO L225 Difference]: With dead ends: 53 [2020-12-01 15:19:04,894 INFO L226 Difference]: Without dead ends: 24 [2020-12-01 15:19:04,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:19:04,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-12-01 15:19:04,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-12-01 15:19:04,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-12-01 15:19:04,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-12-01 15:19:04,940 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 17 [2020-12-01 15:19:04,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:19:04,941 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-12-01 15:19:04,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:19:04,942 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-12-01 15:19:04,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 15:19:04,943 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:04,943 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:19:04,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:19:04,944 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:04,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:04,946 INFO L82 PathProgramCache]: Analyzing trace with hash 2114165096, now seen corresponding path program 1 times [2020-12-01 15:19:04,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:19:04,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454049825] [2020-12-01 15:19:04,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:19:04,986 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-01 15:19:04,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [136214451] [2020-12-01 15:19:04,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:19:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:05,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 23 conjunts are in the unsatisfiable core [2020-12-01 15:19:05,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:19:05,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454049825] [2020-12-01 15:19:05,480 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-01 15:19:05,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136214451] [2020-12-01 15:19:05,480 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2020-12-01 15:19:05,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:19:05,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-12-01 15:19:05,481 ERROR L205 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2020-12-01 15:19:05,481 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:19:05,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-01 15:19:05,715 WARN L254 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-12-01 15:19:05,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:19:05 BoogieIcfgContainer [2020-12-01 15:19:05,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:19:05,716 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:19:05,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:19:05,716 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:19:05,717 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:19:04" (3/4) ... [2020-12-01 15:19:05,720 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:19:05,720 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:19:05,722 INFO L168 Benchmark]: Toolchain (without parser) took 2278.28 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 60.8 MB in the beginning and 54.8 MB in the end (delta: 6.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:19:05,723 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 86.0 MB. Free memory is still 49.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:19:05,724 INFO L168 Benchmark]: CACSL2BoogieTranslator took 477.74 ms. Allocated memory is still 86.0 MB. Free memory was 60.8 MB in the beginning and 63.9 MB in the end (delta: -3.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:19:05,725 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.21 ms. Allocated memory is still 86.0 MB. Free memory was 63.9 MB in the beginning and 62.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:19:05,725 INFO L168 Benchmark]: Boogie Preprocessor took 46.34 ms. Allocated memory is still 86.0 MB. Free memory was 62.3 MB in the beginning and 61.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:19:05,726 INFO L168 Benchmark]: RCFGBuilder took 369.20 ms. Allocated memory is still 86.0 MB. Free memory was 60.9 MB in the beginning and 46.5 MB in the end (delta: 14.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:19:05,728 INFO L168 Benchmark]: TraceAbstraction took 1292.88 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 46.2 MB in the beginning and 55.3 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2020-12-01 15:19:05,729 INFO L168 Benchmark]: Witness Printer took 3.85 ms. Allocated memory is still 104.9 MB. Free memory was 55.3 MB in the beginning and 54.8 MB in the end (delta: 509.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:19:05,737 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 86.0 MB. Free memory is still 49.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 477.74 ms. Allocated memory is still 86.0 MB. Free memory was 60.8 MB in the beginning and 63.9 MB in the end (delta: -3.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.21 ms. Allocated memory is still 86.0 MB. Free memory was 63.9 MB in the beginning and 62.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.34 ms. Allocated memory is still 86.0 MB. Free memory was 62.3 MB in the beginning and 61.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 369.20 ms. Allocated memory is still 86.0 MB. Free memory was 60.9 MB in the beginning and 46.5 MB in the end (delta: 14.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1292.88 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 46.2 MB in the beginning and 55.3 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * Witness Printer took 3.85 ms. Allocated memory is still 104.9 MB. Free memory was 55.3 MB in the beginning and 54.8 MB in the end (delta: 509.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L20] unsigned a, b; [L21] unsigned x, y, u, v; [L22] a = __VERIFIER_nondet_uint() [L9] COND FALSE !(!cond) [L24] b = __VERIFIER_nondet_uint() [L9] COND FALSE !(!cond) [L9] COND FALSE !(!cond) [L9] COND FALSE !(!cond) [L9] COND FALSE !(!cond) [L9] COND FALSE !(!cond) [L32] x = a [L33] y = b [L34] u = b [L35] v = a [L37] COND TRUE 1 [L12] COND TRUE !(cond) [L5] __assert_fail("0", "lcm2.c", 5, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 29 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-69874e2 [2020-12-01 15:19:08,524 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-12-01 15:19:08,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:19:08,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:19:08,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:19:08,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:19:08,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:19:08,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:19:08,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:19:08,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:19:08,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:19:08,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:19:08,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:19:08,693 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 15:19:08,737 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:19:08,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:19:08,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:19:08,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:19:08,739 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:19:08,740 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:19:08,740 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:19:08,740 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:19:08,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:19:08,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:19:08,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:19:08,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:19:08,741 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 15:19:08,741 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 15:19:08,742 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:19:08,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:19:08,742 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:19:08,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:19:08,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:19:08,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:19:08,743 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:19:08,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:19:08,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:19:08,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:19:08,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:19:08,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:19:08,744 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 15:19:08,745 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 15:19:08,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:19:08,745 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:19:08,745 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 15:19:08,745 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 649aa7851c03f89873183839941c0b3582fd1bc1 [2020-12-01 15:19:09,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:19:09,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:19:09,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:19:09,216 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:19:09,217 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:19:09,218 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound100.c [2020-12-01 15:19:09,315 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/data/71300b0ac/105a1107e12348e29dee1349439716ac/FLAGe583f122a [2020-12-01 15:19:09,918 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:19:09,919 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound100.c [2020-12-01 15:19:09,930 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/data/71300b0ac/105a1107e12348e29dee1349439716ac/FLAGe583f122a [2020-12-01 15:19:10,284 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/data/71300b0ac/105a1107e12348e29dee1349439716ac [2020-12-01 15:19:10,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:19:10,288 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:19:10,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:19:10,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:19:10,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:19:10,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:19:10" (1/1) ... [2020-12-01 15:19:10,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6568269f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:10, skipping insertion in model container [2020-12-01 15:19:10,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:19:10" (1/1) ... [2020-12-01 15:19:10,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:19:10,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:19:10,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:19:10,523 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:19:10,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:19:10,565 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:19:10,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:10 WrapperNode [2020-12-01 15:19:10,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:19:10,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:19:10,568 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:19:10,568 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:19:10,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:10" (1/1) ... [2020-12-01 15:19:10,587 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:10" (1/1) ... [2020-12-01 15:19:10,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:19:10,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:19:10,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:19:10,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:19:10,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:10" (1/1) ... [2020-12-01 15:19:10,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:10" (1/1) ... [2020-12-01 15:19:10,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:10" (1/1) ... [2020-12-01 15:19:10,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:10" (1/1) ... [2020-12-01 15:19:10,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:10" (1/1) ... [2020-12-01 15:19:10,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:10" (1/1) ... [2020-12-01 15:19:10,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:10" (1/1) ... [2020-12-01 15:19:10,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:19:10,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:19:10,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:19:10,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:19:10,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:19:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 15:19:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:19:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:19:10,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:19:11,246 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:19:11,247 INFO L298 CfgBuilder]: Removed 25 assume(true) statements. [2020-12-01 15:19:11,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:19:11 BoogieIcfgContainer [2020-12-01 15:19:11,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:19:11,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:19:11,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:19:11,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:19:11,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:19:10" (1/3) ... [2020-12-01 15:19:11,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12228cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:19:11, skipping insertion in model container [2020-12-01 15:19:11,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:10" (2/3) ... [2020-12-01 15:19:11,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12228cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:19:11, skipping insertion in model container [2020-12-01 15:19:11,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:19:11" (3/3) ... [2020-12-01 15:19:11,280 INFO L111 eAbstractionObserver]: Analyzing ICFG lcm2_valuebound100.c [2020-12-01 15:19:11,308 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:19:11,312 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-01 15:19:11,325 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-01 15:19:11,369 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:19:11,371 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:19:11,371 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:19:11,371 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:19:11,371 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:19:11,372 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:19:11,372 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:19:11,372 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:19:11,390 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-12-01 15:19:11,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 15:19:11,404 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:11,405 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:19:11,406 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:11,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:11,413 INFO L82 PathProgramCache]: Analyzing trace with hash 822857436, now seen corresponding path program 1 times [2020-12-01 15:19:11,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:19:11,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892830323] [2020-12-01 15:19:11,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-01 15:19:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:11,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 15:19:11,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:19:11,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:19:11,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:19:11,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:19:11,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892830323] [2020-12-01 15:19:11,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:19:11,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 15:19:11,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994982554] [2020-12-01 15:19:11,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:19:11,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:19:11,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:19:11,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:19:11,804 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2020-12-01 15:19:11,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:19:11,825 INFO L93 Difference]: Finished difference Result 53 states and 74 transitions. [2020-12-01 15:19:11,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:19:11,826 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2020-12-01 15:19:11,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:19:11,844 INFO L225 Difference]: With dead ends: 53 [2020-12-01 15:19:11,844 INFO L226 Difference]: Without dead ends: 24 [2020-12-01 15:19:11,847 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:19:11,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-12-01 15:19:11,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-12-01 15:19:11,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-12-01 15:19:11,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-12-01 15:19:11,882 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 17 [2020-12-01 15:19:11,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:19:11,883 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-12-01 15:19:11,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:19:11,883 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-12-01 15:19:11,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 15:19:11,885 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:11,885 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:19:12,102 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 15:19:12,102 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:12,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:12,103 INFO L82 PathProgramCache]: Analyzing trace with hash 2114165096, now seen corresponding path program 1 times [2020-12-01 15:19:12,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:19:12,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103122840] [2020-12-01 15:19:12,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-01 15:19:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:14,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-01 15:19:14,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:19:15,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:19:15,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:19:16,551 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-01 15:19:16,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:19:16,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103122840] [2020-12-01 15:19:16,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:19:16,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 4] imperfect sequences [] total 14 [2020-12-01 15:19:16,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77950928] [2020-12-01 15:19:16,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-01 15:19:16,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:19:16,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-01 15:19:16,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-12-01 15:19:16,597 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 14 states. [2020-12-01 15:19:18,308 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2020-12-01 15:19:18,496 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 24 [2020-12-01 15:19:24,743 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 16 [2020-12-01 15:19:27,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:19:27,323 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2020-12-01 15:19:27,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-01 15:19:27,330 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2020-12-01 15:19:27,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:19:27,331 INFO L225 Difference]: With dead ends: 35 [2020-12-01 15:19:27,332 INFO L226 Difference]: Without dead ends: 33 [2020-12-01 15:19:27,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=146, Invalid=316, Unknown=0, NotChecked=0, Total=462 [2020-12-01 15:19:27,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-01 15:19:27,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 26. [2020-12-01 15:19:27,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-01 15:19:27,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-12-01 15:19:27,341 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 17 [2020-12-01 15:19:27,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:19:27,341 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-12-01 15:19:27,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-01 15:19:27,342 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-12-01 15:19:27,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 15:19:27,343 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:27,343 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:19:27,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 15:19:27,558 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:27,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:27,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1697834182, now seen corresponding path program 1 times [2020-12-01 15:19:27,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:19:27,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233496932] [2020-12-01 15:19:27,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-01 15:19:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:27,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:19:27,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:19:28,227 WARN L197 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-01 15:19:28,646 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-01 15:19:29,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:19:29,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:19:29,912 WARN L197 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-01 15:19:29,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:19:29,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233496932] [2020-12-01 15:19:29,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:19:29,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-12-01 15:19:29,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743649250] [2020-12-01 15:19:29,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 15:19:29,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:19:29,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:19:29,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:19:29,991 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 7 states. [2020-12-01 15:19:31,282 WARN L197 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 19 [2020-12-01 15:19:35,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:19:35,978 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-12-01 15:19:35,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:19:35,983 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-12-01 15:19:35,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:19:35,984 INFO L225 Difference]: With dead ends: 26 [2020-12-01 15:19:35,984 INFO L226 Difference]: Without dead ends: 22 [2020-12-01 15:19:35,985 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:19:35,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-12-01 15:19:35,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-12-01 15:19:35,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-12-01 15:19:35,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-12-01 15:19:35,990 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 20 [2020-12-01 15:19:35,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:19:35,991 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-12-01 15:19:35,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 15:19:35,991 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-12-01 15:19:35,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 15:19:35,992 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:35,993 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:19:36,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 15:19:36,205 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:36,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:36,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1094861916, now seen corresponding path program 1 times [2020-12-01 15:19:36,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:19:36,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646352077] [2020-12-01 15:19:36,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-01 15:19:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:39,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 26 conjunts are in the unsatisfiable core [2020-12-01 15:19:39,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:19:41,256 WARN L197 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 22 [2020-12-01 15:19:41,587 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 24 [2020-12-01 15:19:41,615 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 15:19:41,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:19:41,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:19:47,674 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-01 15:19:53,348 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-12-01 15:19:53,396 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-01 15:19:53,397 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-01 15:19:53,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:19:53,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [646352077] [2020-12-01 15:19:53,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:19:53,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 6] total 19 [2020-12-01 15:19:53,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699413677] [2020-12-01 15:19:53,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-01 15:19:53,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:19:53,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-01 15:19:53,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=259, Unknown=3, NotChecked=0, Total=342 [2020-12-01 15:19:53,461 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 19 states. [2020-12-01 15:19:56,263 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2020-12-01 15:19:58,511 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 24 [2020-12-01 15:19:58,643 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 26 [2020-12-01 15:20:09,694 WARN L197 SmtUtils]: Spent 6.92 s on a formula simplification. DAG size of input: 56 DAG size of output: 37 [2020-12-01 15:20:17,593 WARN L197 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2020-12-01 15:20:19,297 WARN L197 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 49 DAG size of output: 32 [2020-12-01 15:20:24,794 WARN L197 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 44 DAG size of output: 27 [2020-12-01 15:20:36,848 WARN L197 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 43 DAG size of output: 26 [2020-12-01 15:20:37,264 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 15 [2020-12-01 15:20:37,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:20:37,432 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-12-01 15:20:37,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-01 15:20:37,439 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 21 [2020-12-01 15:20:37,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:20:37,440 INFO L225 Difference]: With dead ends: 36 [2020-12-01 15:20:37,440 INFO L226 Difference]: Without dead ends: 34 [2020-12-01 15:20:37,441 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 28.4s TimeCoverageRelationStatistics Valid=328, Invalid=725, Unknown=3, NotChecked=0, Total=1056 [2020-12-01 15:20:37,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-01 15:20:37,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2020-12-01 15:20:37,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-12-01 15:20:37,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-12-01 15:20:37,448 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 21 [2020-12-01 15:20:37,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:20:37,448 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-12-01 15:20:37,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-01 15:20:37,449 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-12-01 15:20:37,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 15:20:37,450 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:20:37,450 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:20:37,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-01 15:20:37,658 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:20:37,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:20:37,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1094921498, now seen corresponding path program 1 times [2020-12-01 15:20:37,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:20:37,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [688291643] [2020-12-01 15:20:37,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-01 15:20:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:20:40,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 26 conjunts are in the unsatisfiable core [2020-12-01 15:20:40,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:20:41,788 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 22 [2020-12-01 15:20:42,039 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 15:20:42,044 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 15:20:42,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:20:42,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:20:45,088 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-01 15:20:47,974 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-01 15:20:51,110 WARN L197 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-01 15:20:54,319 WARN L197 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-12-01 15:20:54,329 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-01 15:20:54,329 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-01 15:20:54,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:20:54,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [688291643] [2020-12-01 15:20:54,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:20:54,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 7] total 20 [2020-12-01 15:20:54,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878220331] [2020-12-01 15:20:54,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-01 15:20:54,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:20:54,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-01 15:20:54,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=288, Unknown=1, NotChecked=0, Total=380 [2020-12-01 15:20:54,349 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 20 states. [2020-12-01 15:20:57,851 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2020-12-01 15:21:00,153 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 26 [2020-12-01 15:21:09,793 WARN L197 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 51 DAG size of output: 33 [2020-12-01 15:21:21,419 WARN L197 SmtUtils]: Spent 5.44 s on a formula simplification. DAG size of input: 59 DAG size of output: 40 [2020-12-01 15:21:23,071 WARN L197 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 46 DAG size of output: 28 [2020-12-01 15:21:24,719 WARN L197 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 49 DAG size of output: 32 [2020-12-01 15:21:26,307 WARN L197 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2020-12-01 15:21:28,386 WARN L197 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 43 DAG size of output: 26 [2020-12-01 15:21:44,229 WARN L197 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 44 DAG size of output: 27 [2020-12-01 15:21:45,767 WARN L197 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2020-12-01 15:21:53,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:21:53,972 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-12-01 15:21:53,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-12-01 15:21:53,979 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 21 [2020-12-01 15:21:53,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:21:53,979 INFO L225 Difference]: With dead ends: 36 [2020-12-01 15:21:53,979 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:21:53,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 31.6s TimeCoverageRelationStatistics Valid=423, Invalid=908, Unknown=1, NotChecked=0, Total=1332 [2020-12-01 15:21:53,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:21:53,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:21:53,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:21:53,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:21:53,982 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-12-01 15:21:53,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:21:53,982 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:21:53,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-01 15:21:53,982 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:21:53,982 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:21:54,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-01 15:21:54,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:21:54,395 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2020-12-01 15:21:59,080 WARN L197 SmtUtils]: Spent 4.62 s on a formula simplification. DAG size of input: 68 DAG size of output: 29 [2020-12-01 15:22:00,929 WARN L197 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2020-12-01 15:22:00,932 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-12-01 15:22:00,932 INFO L265 CegarLoopResult]: At program point L56(lines 19 57) the Hoare annotation is: true [2020-12-01 15:22:00,932 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:22:00,932 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:22:00,932 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:22:00,932 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-12-01 15:22:00,932 INFO L262 CegarLoopResult]: For program point L12(lines 12 15) no Hoare annotation was computed. [2020-12-01 15:22:00,933 INFO L258 CegarLoopResult]: At program point L12-1(lines 40 41) the Hoare annotation is: (and (bvuge ULTIMATE.start_main_~b~0 (_ bv1 32)) (= (bvadd (bvmul ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~v~0) (bvmul ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~u~0)) (bvmul (bvmul ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0) (_ bv2 32))) (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond) (bvule ULTIMATE.start_main_~b~0 (_ bv100 32)) (bvule ULTIMATE.start_main_~a~0 (_ bv100 32)) (bvuge ULTIMATE.start_main_~a~0 (_ bv1 32))) [2020-12-01 15:22:00,933 INFO L262 CegarLoopResult]: For program point L12-2(lines 12 15) no Hoare annotation was computed. [2020-12-01 15:22:00,933 INFO L265 CegarLoopResult]: At program point L12-3(lines 11 17) the Hoare annotation is: true [2020-12-01 15:22:00,933 INFO L262 CegarLoopResult]: For program point L8(lines 8 10) no Hoare annotation was computed. [2020-12-01 15:22:00,933 INFO L262 CegarLoopResult]: For program point L8-1(lines 8 10) no Hoare annotation was computed. [2020-12-01 15:22:00,933 INFO L262 CegarLoopResult]: For program point L8-2(lines 8 10) no Hoare annotation was computed. [2020-12-01 15:22:00,933 INFO L262 CegarLoopResult]: For program point L8-3(lines 8 10) no Hoare annotation was computed. [2020-12-01 15:22:00,934 INFO L262 CegarLoopResult]: For program point L8-4(lines 8 10) no Hoare annotation was computed. [2020-12-01 15:22:00,934 INFO L262 CegarLoopResult]: For program point L8-5(lines 8 10) no Hoare annotation was computed. [2020-12-01 15:22:00,934 INFO L262 CegarLoopResult]: For program point L37-2(lines 37 50) no Hoare annotation was computed. [2020-12-01 15:22:00,934 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:22:00,934 INFO L262 CegarLoopResult]: For program point L13(lines 13 14) no Hoare annotation was computed. [2020-12-01 15:22:00,934 INFO L262 CegarLoopResult]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2020-12-01 15:22:00,934 INFO L262 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-12-01 15:22:00,934 INFO L262 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-12-01 15:22:00,934 INFO L262 CegarLoopResult]: For program point L9-4(line 9) no Hoare annotation was computed. [2020-12-01 15:22:00,934 INFO L262 CegarLoopResult]: For program point L9-6(line 9) no Hoare annotation was computed. [2020-12-01 15:22:00,934 INFO L262 CegarLoopResult]: For program point L9-8(line 9) no Hoare annotation was computed. [2020-12-01 15:22:00,934 INFO L262 CegarLoopResult]: For program point L9-10(line 9) no Hoare annotation was computed. [2020-12-01 15:22:00,934 INFO L262 CegarLoopResult]: For program point L43(lines 43 49) no Hoare annotation was computed. [2020-12-01 15:22:00,935 INFO L258 CegarLoopResult]: At program point L43-2(lines 37 50) the Hoare annotation is: (and (let ((.cse0 (bvuge ULTIMATE.start_main_~b~0 (_ bv1 32)))) (or (and .cse0 (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~b~0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~u~0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~v~0) (= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~a~0)) (and .cse0 (= (bvadd (bvmul ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~v~0) (bvmul ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~u~0)) (bvmul (bvmul ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0) (_ bv2 32))) (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))))) (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond) (bvule ULTIMATE.start_main_~b~0 (_ bv100 32)) (bvule ULTIMATE.start_main_~a~0 (_ bv100 32)) (bvuge ULTIMATE.start_main_~a~0 (_ bv1 32))) [2020-12-01 15:22:00,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:22:00 BoogieIcfgContainer [2020-12-01 15:22:00,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:22:00,951 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:22:00,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:22:00,951 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:22:00,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:19:11" (3/4) ... [2020-12-01 15:22:00,955 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:22:00,965 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2020-12-01 15:22:00,966 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-01 15:22:00,966 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 15:22:00,966 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:22:00,966 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:22:01,021 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_51019608-4321-4b20-b4e7-bb4e932dfabe/bin/uautomizer/witness.graphml [2020-12-01 15:22:01,021 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:22:01,022 INFO L168 Benchmark]: Toolchain (without parser) took 170733.79 ms. Allocated memory was 50.3 MB in the beginning and 79.7 MB in the end (delta: 29.4 MB). Free memory was 27.1 MB in the beginning and 59.7 MB in the end (delta: -32.6 MB). Peak memory consumption was 39.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:22:01,022 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 50.3 MB. Free memory was 32.2 MB in the beginning and 32.2 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:22:01,023 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.04 ms. Allocated memory is still 50.3 MB. Free memory was 26.9 MB in the beginning and 30.3 MB in the end (delta: -3.4 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:22:01,023 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.52 ms. Allocated memory is still 50.3 MB. Free memory was 30.3 MB in the beginning and 28.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:22:01,024 INFO L168 Benchmark]: Boogie Preprocessor took 84.05 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 28.6 MB in the beginning and 47.9 MB in the end (delta: -19.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:22:01,025 INFO L168 Benchmark]: RCFGBuilder took 550.19 ms. Allocated memory is still 65.0 MB. Free memory was 47.7 MB in the beginning and 32.8 MB in the end (delta: 14.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:22:01,025 INFO L168 Benchmark]: TraceAbstraction took 169683.75 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 32.4 MB in the beginning and 18.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:22:01,026 INFO L168 Benchmark]: Witness Printer took 70.43 ms. Allocated memory is still 79.7 MB. Free memory was 18.8 MB in the beginning and 59.7 MB in the end (delta: -40.9 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:22:01,030 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 50.3 MB. Free memory was 32.2 MB in the beginning and 32.2 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 277.04 ms. Allocated memory is still 50.3 MB. Free memory was 26.9 MB in the beginning and 30.3 MB in the end (delta: -3.4 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.52 ms. Allocated memory is still 50.3 MB. Free memory was 30.3 MB in the beginning and 28.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 84.05 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 28.6 MB in the beginning and 47.9 MB in the end (delta: -19.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 550.19 ms. Allocated memory is still 65.0 MB. Free memory was 47.7 MB in the beginning and 32.8 MB in the end (delta: 14.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 169683.75 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 32.4 MB in the beginning and 18.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * Witness Printer took 70.43 ms. Allocated memory is still 79.7 MB. Free memory was 18.8 MB in the beginning and 59.7 MB in the end (delta: -40.9 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((~bvuge32(b, 1bv32) && ~bvadd64(~bvmul32(y, v), ~bvmul32(x, u)) == ~bvmul32(~bvmul32(a, b), 2bv32)) && ~bvadd64(cond, 4294967295bv32) == 0bv32) && 1bv32 == cond) && ~bvule32(b, 100bv32)) && ~bvule32(a, 100bv32)) && ~bvuge32(a, 1bv32) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: ((((((((~bvuge32(b, 1bv32) && y == b) && b == u) && a == v) && x == a) || ((~bvuge32(b, 1bv32) && ~bvadd64(~bvmul32(y, v), ~bvmul32(x, u)) == ~bvmul32(~bvmul32(a, b), 2bv32)) && ~bvadd64(cond, 4294967295bv32) == 0bv32)) && 1bv32 == cond) && ~bvule32(b, 100bv32)) && ~bvule32(a, 100bv32)) && ~bvuge32(a, 1bv32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 162.8s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 120.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 324 SDslu, 86 SDs, 0 SdLazy, 440 SolverSat, 250 SolverUnsat, 37 SolverUnknown, 0 SolverNotchecked, 83.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 134 SyntacticMatches, 3 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 65.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 17 NumberOfFragments, 88 HoareAnnotationTreeSize, 4 FomulaSimplifications, 3057 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 4 FomulaSimplificationsInter, 540 FormulaSimplificationTreeSizeReductionInter, 6.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 9.5s SatisfiabilityAnalysisTime, 31.3s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 24554 SizeOfPredicates, 64 NumberOfNonLiveVariables, 298 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 2/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...