./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d28ce5cd-aed5-4a38-95d8-27b6ddd258d7/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d28ce5cd-aed5-4a38-95d8-27b6ddd258d7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d28ce5cd-aed5-4a38-95d8-27b6ddd258d7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d28ce5cd-aed5-4a38-95d8-27b6ddd258d7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d28ce5cd-aed5-4a38-95d8-27b6ddd258d7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d28ce5cd-aed5-4a38-95d8-27b6ddd258d7/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 58edc92b721c1f9ebb1bf2bfb3fa6c635e179544 ........................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:39:53,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:39:53,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:39:53,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:39:53,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:39:53,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:39:53,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:39:53,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:39:53,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:39:53,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:39:53,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:39:53,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:39:53,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:39:53,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:39:53,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:39:53,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:39:53,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:39:53,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:39:53,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:39:53,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:39:53,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:39:53,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:39:53,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:39:53,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:39:53,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:39:53,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:39:53,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:39:53,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:39:53,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:39:53,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:39:53,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:39:53,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:39:53,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:39:53,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:39:53,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:39:53,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:39:53,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:39:53,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:39:53,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:39:53,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:39:53,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:39:53,890 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d28ce5cd-aed5-4a38-95d8-27b6ddd258d7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:39:53,930 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:39:53,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:39:53,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:39:53,932 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:39:53,933 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:39:53,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:39:53,933 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:39:53,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:39:53,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:39:53,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:39:53,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:39:53,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:39:53,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:39:53,935 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:39:53,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:39:53,936 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:39:53,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:39:53,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:39:53,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:39:53,937 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:39:53,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:39:53,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:39:53,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:39:53,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:39:53,938 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:39:53,938 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:39:53,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:39:53,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:39:53,939 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:39:53,939 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_d28ce5cd-aed5-4a38-95d8-27b6ddd258d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d28ce5cd-aed5-4a38-95d8-27b6ddd258d7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58edc92b721c1f9ebb1bf2bfb3fa6c635e179544 [2020-11-30 00:39:54,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:39:54,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:39:54,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:39:54,200 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:39:54,201 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:39:54,201 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d28ce5cd-aed5-4a38-95d8-27b6ddd258d7/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c [2020-11-30 00:39:54,277 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d28ce5cd-aed5-4a38-95d8-27b6ddd258d7/bin/uautomizer/data/168aafbe6/d851376dbe474bdf8ea218d8798ec820/FLAGf8b648b4e [2020-11-30 00:39:54,712 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:39:54,712 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d28ce5cd-aed5-4a38-95d8-27b6ddd258d7/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c [2020-11-30 00:39:54,718 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d28ce5cd-aed5-4a38-95d8-27b6ddd258d7/bin/uautomizer/data/168aafbe6/d851376dbe474bdf8ea218d8798ec820/FLAGf8b648b4e [2020-11-30 00:39:55,110 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d28ce5cd-aed5-4a38-95d8-27b6ddd258d7/bin/uautomizer/data/168aafbe6/d851376dbe474bdf8ea218d8798ec820 [2020-11-30 00:39:55,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:39:55,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:39:55,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:39:55,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:39:55,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:39:55,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:39:55" (1/1) ... [2020-11-30 00:39:55,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b80f3bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:55, skipping insertion in model container [2020-11-30 00:39:55,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:39:55" (1/1) ... [2020-11-30 00:39:55,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:39:55,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:39:55,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:39:55,315 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:39:55,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:39:55,341 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:39:55,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:55 WrapperNode [2020-11-30 00:39:55,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:39:55,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:39:55,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:39:55,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:39:55,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:55" (1/1) ... [2020-11-30 00:39:55,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:55" (1/1) ... [2020-11-30 00:39:55,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:39:55,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:39:55,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:39:55,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:39:55,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:55" (1/1) ... [2020-11-30 00:39:55,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:55" (1/1) ... [2020-11-30 00:39:55,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:55" (1/1) ... [2020-11-30 00:39:55,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:55" (1/1) ... [2020-11-30 00:39:55,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:55" (1/1) ... [2020-11-30 00:39:55,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:55" (1/1) ... [2020-11-30 00:39:55,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:55" (1/1) ... [2020-11-30 00:39:55,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:39:55,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:39:55,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:39:55,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:39:55,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d28ce5cd-aed5-4a38-95d8-27b6ddd258d7/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 [2020-11-30 00:39:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:39:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:39:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:39:55,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:39:55,784 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:39:55,784 INFO L298 CfgBuilder]: Removed 17 assume(true) statements. [2020-11-30 00:39:55,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:39:55 BoogieIcfgContainer [2020-11-30 00:39:55,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:39:55,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:39:55,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:39:55,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:39:55,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:39:55" (1/3) ... [2020-11-30 00:39:55,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2111b795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:39:55, skipping insertion in model container [2020-11-30 00:39:55,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:55" (2/3) ... [2020-11-30 00:39:55,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2111b795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:39:55, skipping insertion in model container [2020-11-30 00:39:55,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:39:55" (3/3) ... [2020-11-30 00:39:55,794 INFO L111 eAbstractionObserver]: Analyzing ICFG geo2-ll_valuebound1.c [2020-11-30 00:39:55,812 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:39:55,816 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-30 00:39:55,835 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-30 00:39:55,854 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:39:55,854 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:39:55,854 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:39:55,855 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:39:55,855 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:39:55,855 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:39:55,855 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:39:55,855 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:39:55,868 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-11-30 00:39:55,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:39:55,873 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:39:55,876 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:39:55,876 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:39:55,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:39:55,882 INFO L82 PathProgramCache]: Analyzing trace with hash -594062832, now seen corresponding path program 1 times [2020-11-30 00:39:55,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:39:55,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586436977] [2020-11-30 00:39:55,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:39:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:39:56,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:39:56,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586436977] [2020-11-30 00:39:56,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:39:56,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:39:56,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217947104] [2020-11-30 00:39:56,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:39:56,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:39:56,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:39:56,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:39:56,084 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2020-11-30 00:39:56,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:39:56,102 INFO L93 Difference]: Finished difference Result 35 states and 46 transitions. [2020-11-30 00:39:56,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:39:56,103 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-30 00:39:56,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:39:56,113 INFO L225 Difference]: With dead ends: 35 [2020-11-30 00:39:56,113 INFO L226 Difference]: Without dead ends: 15 [2020-11-30 00:39:56,118 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 [2020-11-30 00:39:56,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-30 00:39:56,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-30 00:39:56,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-30 00:39:56,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-11-30 00:39:56,166 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 9 [2020-11-30 00:39:56,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:39:56,166 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-11-30 00:39:56,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:39:56,167 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-11-30 00:39:56,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:39:56,168 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:39:56,168 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:39:56,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:39:56,169 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:39:56,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:39:56,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1182791572, now seen corresponding path program 1 times [2020-11-30 00:39:56,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:39:56,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734656252] [2020-11-30 00:39:56,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:39:56,234 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:39:56,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [24380650] [2020-11-30 00:39:56,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d28ce5cd-aed5-4a38-95d8-27b6ddd258d7/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 [2020-11-30 00:39:56,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:39:56,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-30 00:39:56,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:39:56,440 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 00:39:56,440 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:39:56,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:39:56,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734656252] [2020-11-30 00:39:56,538 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:39:56,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24380650] [2020-11-30 00:39:56,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:39:56,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 00:39:56,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537539933] [2020-11-30 00:39:56,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:39:56,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:39:56,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:39:56,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:39:56,542 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 6 states. [2020-11-30 00:39:56,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:39:56,741 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2020-11-30 00:39:56,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:39:56,743 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-11-30 00:39:56,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:39:56,743 INFO L225 Difference]: With dead ends: 25 [2020-11-30 00:39:56,744 INFO L226 Difference]: Without dead ends: 19 [2020-11-30 00:39:56,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:39:56,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-30 00:39:56,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-11-30 00:39:56,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-30 00:39:56,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-11-30 00:39:56,749 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 9 [2020-11-30 00:39:56,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:39:56,749 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-11-30 00:39:56,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:39:56,749 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-11-30 00:39:56,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:39:56,750 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:39:56,750 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:39:56,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-30 00:39:56,951 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:39:56,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:39:56,952 INFO L82 PathProgramCache]: Analyzing trace with hash 637918818, now seen corresponding path program 1 times [2020-11-30 00:39:56,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:39:56,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109771396] [2020-11-30 00:39:56,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:39:56,969 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:39:56,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [84834505] [2020-11-30 00:39:56,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d28ce5cd-aed5-4a38-95d8-27b6ddd258d7/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:39:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:39:57,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 00:39:57,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:39:57,071 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 00:39:57,072 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:39:57,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:39:57,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109771396] [2020-11-30 00:39:57,116 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:39:57,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84834505] [2020-11-30 00:39:57,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:39:57,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:39:57,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783548152] [2020-11-30 00:39:57,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:39:57,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:39:57,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:39:57,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:39:57,119 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2020-11-30 00:39:57,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:39:57,227 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-11-30 00:39:57,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:39:57,227 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-30 00:39:57,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:39:57,228 INFO L225 Difference]: With dead ends: 18 [2020-11-30 00:39:57,228 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:39:57,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:39:57,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:39:57,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:39:57,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:39:57,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:39:57,229 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-30 00:39:57,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:39:57,230 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:39:57,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:39:57,230 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:39:57,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:39:57,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:39:57,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:39:57,545 INFO L270 CegarLoopResult]: At program point L35-2(lines 35 44) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~z~0) (= ULTIMATE.start_main_~x~0 1) (<= 1 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~z~0 1) (<= ULTIMATE.start_main_~k~0 1)) [2020-11-30 00:39:57,546 INFO L274 CegarLoopResult]: For program point L35-3(lines 35 44) no Hoare annotation was computed. [2020-11-30 00:39:57,546 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-30 00:39:57,546 INFO L274 CegarLoopResult]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-11-30 00:39:57,546 INFO L270 CegarLoopResult]: At program point L15-1(lines 38 39) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~z~0) (= ULTIMATE.start_main_~x~0 1) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~z~0 1) (<= ULTIMATE.start_main_~k~0 1)) [2020-11-30 00:39:57,546 INFO L274 CegarLoopResult]: For program point L15-2(lines 15 18) no Hoare annotation was computed. [2020-11-30 00:39:57,546 INFO L277 CegarLoopResult]: At program point L15-3(lines 14 20) the Hoare annotation is: true [2020-11-30 00:39:57,546 INFO L274 CegarLoopResult]: For program point L11(lines 11 13) no Hoare annotation was computed. [2020-11-30 00:39:57,547 INFO L274 CegarLoopResult]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2020-11-30 00:39:57,547 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:39:57,547 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:39:57,547 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:39:57,547 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-30 00:39:57,547 INFO L274 CegarLoopResult]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-11-30 00:39:57,547 INFO L274 CegarLoopResult]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-11-30 00:39:57,547 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 00:39:57,548 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-30 00:39:57,548 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:39:57,548 INFO L277 CegarLoopResult]: At program point L46(lines 23 47) the Hoare annotation is: true [2020-11-30 00:39:57,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:39:57 BoogieIcfgContainer [2020-11-30 00:39:57,564 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:39:57,564 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:39:57,564 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:39:57,565 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:39:57,565 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:39:55" (3/4) ... [2020-11-30 00:39:57,568 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:39:57,578 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-30 00:39:57,579 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:39:57,579 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:39:57,579 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:39:57,635 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d28ce5cd-aed5-4a38-95d8-27b6ddd258d7/bin/uautomizer/witness.graphml [2020-11-30 00:39:57,635 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:39:57,647 INFO L168 Benchmark]: Toolchain (without parser) took 2522.54 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 65.7 MB in the beginning and 69.4 MB in the end (delta: -3.7 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:39:57,647 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory is still 52.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:39:57,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.58 ms. Allocated memory is still 90.2 MB. Free memory was 65.5 MB in the beginning and 68.2 MB in the end (delta: -2.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:39:57,648 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.64 ms. Allocated memory is still 90.2 MB. Free memory was 68.2 MB in the beginning and 66.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:39:57,648 INFO L168 Benchmark]: Boogie Preprocessor took 22.44 ms. Allocated memory is still 90.2 MB. Free memory was 66.5 MB in the beginning and 65.7 MB in the end (delta: 774.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:39:57,649 INFO L168 Benchmark]: RCFGBuilder took 388.49 ms. Allocated memory is still 90.2 MB. Free memory was 65.4 MB in the beginning and 53.2 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:39:57,649 INFO L168 Benchmark]: TraceAbstraction took 1776.33 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.8 MB in the beginning and 71.5 MB in the end (delta: -18.7 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:39:57,649 INFO L168 Benchmark]: Witness Printer took 70.94 ms. Allocated memory is still 109.1 MB. Free memory was 71.5 MB in the beginning and 69.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:39:57,652 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory is still 52.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 227.58 ms. Allocated memory is still 90.2 MB. Free memory was 65.5 MB in the beginning and 68.2 MB in the end (delta: -2.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.64 ms. Allocated memory is still 90.2 MB. Free memory was 68.2 MB in the beginning and 66.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.44 ms. Allocated memory is still 90.2 MB. Free memory was 66.5 MB in the beginning and 65.7 MB in the end (delta: 774.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 388.49 ms. Allocated memory is still 90.2 MB. Free memory was 65.4 MB in the beginning and 53.2 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1776.33 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.8 MB in the beginning and 71.5 MB in the end (delta: -18.7 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. * Witness Printer took 70.94 ms. Allocated memory is still 109.1 MB. Free memory was 71.5 MB in the beginning and 69.4 MB in the end (delta: 2.1 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: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: 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: 35]: Loop Invariant Derived loop invariant: ((((((0 <= z && x == 1) && 1 <= c) && y == 1) && cond == 1) && 0 <= k) && z <= 1) && k <= 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (((((((0 <= z && x == 1) && 1 <= cond) && 1 <= c) && y == 1) && cond == 1) && 0 <= k) && z <= 1) && k <= 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 26 SDslu, 29 SDs, 0 SdLazy, 33 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 55 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 1267 SizeOfPredicates, 10 NumberOfNonLiveVariables, 136 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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...