./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/NonTermination3-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c098091a-18ea-4a29-8098-9ea6ffce46b0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c098091a-18ea-4a29-8098-9ea6ffce46b0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c098091a-18ea-4a29-8098-9ea6ffce46b0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c098091a-18ea-4a29-8098-9ea6ffce46b0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/NonTermination3-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c098091a-18ea-4a29-8098-9ea6ffce46b0/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c098091a-18ea-4a29-8098-9ea6ffce46b0/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b10c0555613e3e1e99ee574b69e31152fe0aa7f9 ................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:06:42,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:06:42,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:06:42,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:06:42,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:06:42,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:06:42,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:06:42,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:06:42,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:06:42,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:06:42,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:06:42,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:06:42,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:06:42,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:06:42,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:06:42,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:06:42,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:06:42,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:06:42,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:06:42,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:06:42,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:06:42,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:06:42,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:06:42,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:06:42,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:06:42,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:06:42,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:06:42,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:06:42,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:06:42,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:06:42,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:06:42,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:06:42,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:06:42,894 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:06:42,896 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:06:42,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:06:42,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:06:42,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:06:42,898 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:06:42,899 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:06:42,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:06:42,901 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c098091a-18ea-4a29-8098-9ea6ffce46b0/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-28 03:06:42,924 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:06:42,924 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:06:42,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:06:42,926 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:06:42,926 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:06:42,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:06:42,926 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:06:42,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:06:42,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:06:42,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:06:42,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:06:42,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:06:42,928 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 03:06:42,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:06:42,928 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:06:42,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:06:42,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:06:42,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:06:42,929 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:06:42,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:06:42,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:06:42,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:06:42,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:06:42,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:06:42,931 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:06:42,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:06:42,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:06:42,931 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:06:42,932 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_c098091a-18ea-4a29-8098-9ea6ffce46b0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c098091a-18ea-4a29-8098-9ea6ffce46b0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b10c0555613e3e1e99ee574b69e31152fe0aa7f9 [2020-11-28 03:06:43,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:06:43,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:06:43,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:06:43,218 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:06:43,219 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:06:43,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c098091a-18ea-4a29-8098-9ea6ffce46b0/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/NonTermination3-2.c [2020-11-28 03:06:43,291 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c098091a-18ea-4a29-8098-9ea6ffce46b0/bin/uautomizer/data/327db7915/d0d2b87da55541c1a5813ca587139a6f/FLAGcbd7622d7 [2020-11-28 03:06:43,715 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:06:43,716 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c098091a-18ea-4a29-8098-9ea6ffce46b0/sv-benchmarks/c/termination-crafted/NonTermination3-2.c [2020-11-28 03:06:43,722 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c098091a-18ea-4a29-8098-9ea6ffce46b0/bin/uautomizer/data/327db7915/d0d2b87da55541c1a5813ca587139a6f/FLAGcbd7622d7 [2020-11-28 03:06:44,120 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c098091a-18ea-4a29-8098-9ea6ffce46b0/bin/uautomizer/data/327db7915/d0d2b87da55541c1a5813ca587139a6f [2020-11-28 03:06:44,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:06:44,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:06:44,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:06:44,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:06:44,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:06:44,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:06:44" (1/1) ... [2020-11-28 03:06:44,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30033c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:44, skipping insertion in model container [2020-11-28 03:06:44,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:06:44" (1/1) ... [2020-11-28 03:06:44,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:06:44,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:06:44,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:06:44,306 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:06:44,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:06:44,357 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:06:44,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:44 WrapperNode [2020-11-28 03:06:44,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:06:44,359 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:06:44,359 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:06:44,359 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:06:44,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:44" (1/1) ... [2020-11-28 03:06:44,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:44" (1/1) ... [2020-11-28 03:06:44,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:06:44,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:06:44,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:06:44,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:06:44,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:44" (1/1) ... [2020-11-28 03:06:44,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:44" (1/1) ... [2020-11-28 03:06:44,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:44" (1/1) ... [2020-11-28 03:06:44,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:44" (1/1) ... [2020-11-28 03:06:44,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:44" (1/1) ... [2020-11-28 03:06:44,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:44" (1/1) ... [2020-11-28 03:06:44,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:44" (1/1) ... [2020-11-28 03:06:44,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:06:44,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:06:44,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:06:44,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:06:44,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c098091a-18ea-4a29-8098-9ea6ffce46b0/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 [2020-11-28 03:06:44,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:06:44,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:06:44,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:06:44,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:06:44,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:06:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:06:44,886 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:06:44,887 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 03:06:44,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:44 BoogieIcfgContainer [2020-11-28 03:06:44,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:06:44,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:06:44,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:06:44,898 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:06:44,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:06:44" (1/3) ... [2020-11-28 03:06:44,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e8505d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:06:44, skipping insertion in model container [2020-11-28 03:06:44,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:44" (2/3) ... [2020-11-28 03:06:44,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e8505d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:06:44, skipping insertion in model container [2020-11-28 03:06:44,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:44" (3/3) ... [2020-11-28 03:06:44,901 INFO L111 eAbstractionObserver]: Analyzing ICFG NonTermination3-2.c [2020-11-28 03:06:44,919 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:06:44,923 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 03:06:44,933 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 03:06:44,957 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:06:44,957 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:06:44,957 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:06:44,957 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:06:44,957 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:06:44,958 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:06:44,958 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:06:44,958 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:06:44,971 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-11-28 03:06:44,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 03:06:44,977 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:06:44,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 03:06:44,978 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:06:44,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:06:44,983 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2020-11-28 03:06:44,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:06:44,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478261682] [2020-11-28 03:06:44,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:06:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:06:45,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:06:45,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478261682] [2020-11-28 03:06:45,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:06:45,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:06:45,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516535071] [2020-11-28 03:06:45,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:06:45,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:06:45,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:06:45,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:06:45,153 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2020-11-28 03:06:45,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:06:45,209 INFO L93 Difference]: Finished difference Result 26 states and 34 transitions. [2020-11-28 03:06:45,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:06:45,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-28 03:06:45,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:06:45,220 INFO L225 Difference]: With dead ends: 26 [2020-11-28 03:06:45,220 INFO L226 Difference]: Without dead ends: 10 [2020-11-28 03:06:45,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:06:45,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-11-28 03:06:45,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-28 03:06:45,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-28 03:06:45,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-11-28 03:06:45,260 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 4 [2020-11-28 03:06:45,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:06:45,261 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-11-28 03:06:45,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:06:45,262 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-11-28 03:06:45,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:06:45,262 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:06:45,262 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-11-28 03:06:45,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:06:45,263 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:06:45,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:06:45,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1809705867, now seen corresponding path program 1 times [2020-11-28 03:06:45,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:06:45,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423561803] [2020-11-28 03:06:45,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:06:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:06:45,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 03:06:45,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423561803] [2020-11-28 03:06:45,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:06:45,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:06:45,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521228246] [2020-11-28 03:06:45,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:06:45,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:06:45,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:06:45,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:06:45,349 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 3 states. [2020-11-28 03:06:45,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:06:45,386 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-11-28 03:06:45,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:06:45,387 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-28 03:06:45,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:06:45,387 INFO L225 Difference]: With dead ends: 10 [2020-11-28 03:06:45,388 INFO L226 Difference]: Without dead ends: 9 [2020-11-28 03:06:45,388 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:06:45,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-11-28 03:06:45,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-11-28 03:06:45,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-28 03:06:45,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-11-28 03:06:45,391 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2020-11-28 03:06:45,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:06:45,392 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-11-28 03:06:45,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:06:45,392 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-11-28 03:06:45,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 03:06:45,392 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:06:45,393 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2020-11-28 03:06:45,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:06:45,395 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:06:45,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:06:45,397 INFO L82 PathProgramCache]: Analyzing trace with hash 266307074, now seen corresponding path program 1 times [2020-11-28 03:06:45,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:06:45,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189669893] [2020-11-28 03:06:45,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:06:45,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:06:45,499 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:06:45,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189669893] [2020-11-28 03:06:45,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344515257] [2020-11-28 03:06:45,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c098091a-18ea-4a29-8098-9ea6ffce46b0/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 [2020-11-28 03:06:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:06:45,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:06:45,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:06:45,627 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:06:45,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:06:45,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-11-28 03:06:45,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040503535] [2020-11-28 03:06:45,629 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:06:45,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:06:45,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:06:45,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:06:45,631 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2020-11-28 03:06:45,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:06:45,653 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2020-11-28 03:06:45,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:06:45,654 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-28 03:06:45,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:06:45,655 INFO L225 Difference]: With dead ends: 9 [2020-11-28 03:06:45,655 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:06:45,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:06:45,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:06:45,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:06:45,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:06:45,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:06:45,656 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2020-11-28 03:06:45,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:06:45,657 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:06:45,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:06:45,657 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:06:45,657 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:06:45,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-28 03:06:45,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:06:45,908 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2020-11-28 03:06:45,908 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:06:45,909 INFO L277 CegarLoopResult]: At program point L21(lines 9 22) the Hoare annotation is: true [2020-11-28 03:06:45,909 INFO L274 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-11-28 03:06:45,909 INFO L274 CegarLoopResult]: For program point L17-2(lines 17 20) no Hoare annotation was computed. [2020-11-28 03:06:45,909 INFO L274 CegarLoopResult]: For program point L17-4(lines 9 22) no Hoare annotation was computed. [2020-11-28 03:06:45,909 INFO L274 CegarLoopResult]: For program point L17-5(lines 17 20) no Hoare annotation was computed. [2020-11-28 03:06:45,909 INFO L274 CegarLoopResult]: For program point L13-2(lines 13 15) no Hoare annotation was computed. [2020-11-28 03:06:45,910 INFO L274 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-11-28 03:06:45,910 INFO L270 CegarLoopResult]: At program point L13-4(lines 13 15) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~n~0) [2020-11-28 03:06:45,910 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:06:45,910 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2020-11-28 03:06:45,910 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:06:45,910 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:06:45,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:06:45 BoogieIcfgContainer [2020-11-28 03:06:45,928 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:06:45,929 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:06:45,929 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:06:45,930 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:06:45,930 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:44" (3/4) ... [2020-11-28 03:06:45,935 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:06:45,947 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 03:06:45,948 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 03:06:45,948 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:06:46,003 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c098091a-18ea-4a29-8098-9ea6ffce46b0/bin/uautomizer/witness.graphml [2020-11-28 03:06:46,004 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:06:46,005 INFO L168 Benchmark]: Toolchain (without parser) took 1881.03 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 60.2 MB in the beginning and 76.8 MB in the end (delta: -16.6 MB). Peak memory consumption was 3.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:46,006 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 94.4 MB. Free memory was 68.2 MB in the beginning and 68.1 MB in the end (delta: 26.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:06:46,006 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.87 ms. Allocated memory is still 94.4 MB. Free memory was 60.0 MB in the beginning and 72.0 MB in the end (delta: -12.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:46,007 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.07 ms. Allocated memory is still 94.4 MB. Free memory was 72.0 MB in the beginning and 70.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:06:46,007 INFO L168 Benchmark]: Boogie Preprocessor took 26.15 ms. Allocated memory is still 94.4 MB. Free memory was 70.8 MB in the beginning and 69.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:46,008 INFO L168 Benchmark]: RCFGBuilder took 468.69 ms. Allocated memory is still 94.4 MB. Free memory was 69.6 MB in the beginning and 58.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:46,009 INFO L168 Benchmark]: TraceAbstraction took 1034.68 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 58.0 MB in the beginning and 79.7 MB in the end (delta: -21.6 MB). Peak memory consumption was 2.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:46,009 INFO L168 Benchmark]: Witness Printer took 74.57 ms. Allocated memory is still 115.3 MB. Free memory was 79.7 MB in the beginning and 76.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:46,012 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 94.4 MB. Free memory was 68.2 MB in the beginning and 68.1 MB in the end (delta: 26.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 232.87 ms. Allocated memory is still 94.4 MB. Free memory was 60.0 MB in the beginning and 72.0 MB in the end (delta: -12.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.07 ms. Allocated memory is still 94.4 MB. Free memory was 72.0 MB in the beginning and 70.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.15 ms. Allocated memory is still 94.4 MB. Free memory was 70.8 MB in the beginning and 69.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 468.69 ms. Allocated memory is still 94.4 MB. Free memory was 69.6 MB in the beginning and 58.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1034.68 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 58.0 MB in the beginning and 79.7 MB in the end (delta: -21.6 MB). Peak memory consumption was 2.5 MB. Max. memory is 16.1 GB. * Witness Printer took 74.57 ms. Allocated memory is still 115.3 MB. Free memory was 79.7 MB in the beginning and 76.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 <= n - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17 SDtfs, 3 SDslu, 11 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 11 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 335 SizeOfPredicates, 0 NumberOfNonLiveVariables, 36 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 5/8 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...