./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo3-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_e7b04219-584f-4c0a-808d-775e6b9dfec6/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e7b04219-584f-4c0a-808d-775e6b9dfec6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e7b04219-584f-4c0a-808d-775e6b9dfec6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e7b04219-584f-4c0a-808d-775e6b9dfec6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e7b04219-584f-4c0a-808d-775e6b9dfec6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e7b04219-584f-4c0a-808d-775e6b9dfec6/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 2d0112de9ad9d3f82608655d06d02cf60f75cc06 ........................................................................................................................................................................................................................................................................................................................................................................................... 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 03:12:26,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:12:26,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:12:26,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:12:26,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:12:26,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:12:26,384 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:12:26,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:12:26,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:12:26,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:12:26,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:12:26,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:12:26,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:12:26,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:12:26,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:12:26,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:12:26,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:12:26,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:12:26,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:12:26,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:12:26,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:12:26,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:12:26,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:12:26,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:12:26,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:12:26,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:12:26,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:12:26,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:12:26,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:12:26,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:12:26,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:12:26,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:12:26,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:12:26,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:12:26,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:12:26,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:12:26,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:12:26,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:12:26,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:12:26,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:12:26,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:12:26,456 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e7b04219-584f-4c0a-808d-775e6b9dfec6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:12:26,485 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:12:26,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:12:26,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:12:26,487 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:12:26,487 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:12:26,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:12:26,487 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:12:26,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:12:26,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:12:26,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:12:26,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:12:26,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:12:26,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:12:26,489 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:12:26,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:12:26,489 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:12:26,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:12:26,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:12:26,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:12:26,490 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:12:26,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:12:26,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:12:26,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:12:26,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:12:26,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:12:26,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:12:26,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:12:26,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:12:26,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:12:26,493 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_e7b04219-584f-4c0a-808d-775e6b9dfec6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e7b04219-584f-4c0a-808d-775e6b9dfec6/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0112de9ad9d3f82608655d06d02cf60f75cc06 [2020-11-28 03:12:26,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:12:26,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:12:26,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:12:26,780 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:12:26,781 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:12:26,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e7b04219-584f-4c0a-808d-775e6b9dfec6/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound1.c [2020-11-28 03:12:26,856 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e7b04219-584f-4c0a-808d-775e6b9dfec6/bin/uautomizer/data/ba1188e9b/215fe013aa7245789f7ddd3c88a16b58/FLAG40d9b20de [2020-11-28 03:12:27,415 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:12:27,415 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e7b04219-584f-4c0a-808d-775e6b9dfec6/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound1.c [2020-11-28 03:12:27,431 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e7b04219-584f-4c0a-808d-775e6b9dfec6/bin/uautomizer/data/ba1188e9b/215fe013aa7245789f7ddd3c88a16b58/FLAG40d9b20de [2020-11-28 03:12:27,783 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e7b04219-584f-4c0a-808d-775e6b9dfec6/bin/uautomizer/data/ba1188e9b/215fe013aa7245789f7ddd3c88a16b58 [2020-11-28 03:12:27,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:12:27,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:12:27,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:12:27,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:12:27,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:12:27,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:12:27" (1/1) ... [2020-11-28 03:12:27,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b61be52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:27, skipping insertion in model container [2020-11-28 03:12:27,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:12:27" (1/1) ... [2020-11-28 03:12:27,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:12:27,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:12:28,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:12:28,042 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:12:28,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:12:28,078 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:12:28,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:28 WrapperNode [2020-11-28 03:12:28,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:12:28,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:12:28,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:12:28,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:12:28,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:28" (1/1) ... [2020-11-28 03:12:28,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:28" (1/1) ... [2020-11-28 03:12:28,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:12:28,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:12:28,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:12:28,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:12:28,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:28" (1/1) ... [2020-11-28 03:12:28,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:28" (1/1) ... [2020-11-28 03:12:28,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:28" (1/1) ... [2020-11-28 03:12:28,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:28" (1/1) ... [2020-11-28 03:12:28,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:28" (1/1) ... [2020-11-28 03:12:28,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:28" (1/1) ... [2020-11-28 03:12:28,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:28" (1/1) ... [2020-11-28 03:12:28,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:12:28,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:12:28,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:12:28,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:12:28,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e7b04219-584f-4c0a-808d-775e6b9dfec6/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 03:12:28,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:12:28,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:12:28,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:12:28,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:12:28,548 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:12:28,549 INFO L298 CfgBuilder]: Removed 19 assume(true) statements. [2020-11-28 03:12:28,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:12:28 BoogieIcfgContainer [2020-11-28 03:12:28,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:12:28,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:12:28,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:12:28,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:12:28,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:12:27" (1/3) ... [2020-11-28 03:12:28,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15cd7b20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:12:28, skipping insertion in model container [2020-11-28 03:12:28,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:28" (2/3) ... [2020-11-28 03:12:28,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15cd7b20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:12:28, skipping insertion in model container [2020-11-28 03:12:28,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:12:28" (3/3) ... [2020-11-28 03:12:28,581 INFO L111 eAbstractionObserver]: Analyzing ICFG geo3-ll_valuebound1.c [2020-11-28 03:12:28,591 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:12:28,595 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 03:12:28,608 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 03:12:28,630 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:12:28,630 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:12:28,630 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:12:28,631 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:12:28,631 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:12:28,631 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:12:28,631 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:12:28,631 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:12:28,646 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-11-28 03:12:28,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:12:28,652 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:28,653 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:12:28,653 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:28,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:28,660 INFO L82 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2020-11-28 03:12:28,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:28,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001510910] [2020-11-28 03:12:28,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:28,864 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 03:12:28,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001510910] [2020-11-28 03:12:28,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:28,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:12:28,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348997618] [2020-11-28 03:12:28,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:12:28,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:28,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:12:28,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:12:28,890 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-11-28 03:12:28,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:28,909 INFO L93 Difference]: Finished difference Result 39 states and 52 transitions. [2020-11-28 03:12:28,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:12:28,910 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-28 03:12:28,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:28,920 INFO L225 Difference]: With dead ends: 39 [2020-11-28 03:12:28,920 INFO L226 Difference]: Without dead ends: 17 [2020-11-28 03:12:28,923 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 [2020-11-28 03:12:28,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-28 03:12:28,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-28 03:12:28,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-28 03:12:28,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-11-28 03:12:28,960 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 11 [2020-11-28 03:12:28,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:28,960 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-11-28 03:12:28,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:12:28,961 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-11-28 03:12:28,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:12:28,962 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:28,962 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:12:28,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:12:28,963 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:28,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:28,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2020-11-28 03:12:28,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:28,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445545147] [2020-11-28 03:12:28,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:28,992 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:12:28,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [445095087] [2020-11-28 03:12:28,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e7b04219-584f-4c0a-808d-775e6b9dfec6/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 03:12:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:29,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-28 03:12:29,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:12:29,256 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 03:12:29,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445545147] [2020-11-28 03:12:29,257 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 03:12:29,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445095087] [2020-11-28 03:12:29,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:29,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:12:29,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555899503] [2020-11-28 03:12:29,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:12:29,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:29,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:12:29,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:12:29,262 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 4 states. [2020-11-28 03:12:29,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:29,350 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2020-11-28 03:12:29,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:12:29,351 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-28 03:12:29,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:29,352 INFO L225 Difference]: With dead ends: 27 [2020-11-28 03:12:29,352 INFO L226 Difference]: Without dead ends: 21 [2020-11-28 03:12:29,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 03:12:29,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-28 03:12:29,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2020-11-28 03:12:29,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-28 03:12:29,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-11-28 03:12:29,359 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2020-11-28 03:12:29,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:29,360 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-11-28 03:12:29,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:12:29,360 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-11-28 03:12:29,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 03:12:29,361 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:29,361 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:12:29,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-28 03:12:29,583 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:29,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:29,584 INFO L82 PathProgramCache]: Analyzing trace with hash -936539036, now seen corresponding path program 1 times [2020-11-28 03:12:29,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:29,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923627264] [2020-11-28 03:12:29,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:29,622 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:12:29,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1721590162] [2020-11-28 03:12:29,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e7b04219-584f-4c0a-808d-775e6b9dfec6/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 [2020-11-28 03:12:29,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:29,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 03:12:29,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:12:29,716 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-28 03:12:29,717 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:12:29,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:12:29,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923627264] [2020-11-28 03:12:29,782 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 03:12:29,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721590162] [2020-11-28 03:12:29,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:29,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:12:29,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011794611] [2020-11-28 03:12:29,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:12:29,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:29,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:12:29,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:12:29,792 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 5 states. [2020-11-28 03:12:29,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:29,889 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2020-11-28 03:12:29,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:12:29,890 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-28 03:12:29,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:29,890 INFO L225 Difference]: With dead ends: 20 [2020-11-28 03:12:29,890 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:12:29,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:12:29,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:12:29,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:12:29,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:12:29,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:12:29,896 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-11-28 03:12:29,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:29,897 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:12:29,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:12:29,897 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:12:29,898 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:12:30,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:12:30,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:12:30,198 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-28 03:12:30,198 INFO L274 CegarLoopResult]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-11-28 03:12:30,199 INFO L270 CegarLoopResult]: At program point L15-1(lines 39 40) the Hoare annotation is: (and (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (<= 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_~az~0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0)) (<= ULTIMATE.start_main_~k~0 1)) [2020-11-28 03:12:30,199 INFO L274 CegarLoopResult]: For program point L15-2(lines 15 18) no Hoare annotation was computed. [2020-11-28 03:12:30,199 INFO L277 CegarLoopResult]: At program point L15-3(lines 14 20) the Hoare annotation is: true [2020-11-28 03:12:30,199 INFO L274 CegarLoopResult]: For program point L11(lines 11 13) no Hoare annotation was computed. [2020-11-28 03:12:30,199 INFO L274 CegarLoopResult]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2020-11-28 03:12:30,199 INFO L274 CegarLoopResult]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2020-11-28 03:12:30,200 INFO L270 CegarLoopResult]: At program point L36-2(lines 36 45) the Hoare annotation is: (and (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (<= 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_~az~0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0)) (<= ULTIMATE.start_main_~k~0 1)) [2020-11-28 03:12:30,200 INFO L274 CegarLoopResult]: For program point L36-3(lines 36 45) no Hoare annotation was computed. [2020-11-28 03:12:30,200 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:12:30,200 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:12:30,200 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:12:30,200 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-28 03:12:30,201 INFO L274 CegarLoopResult]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-11-28 03:12:30,201 INFO L274 CegarLoopResult]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-11-28 03:12:30,201 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-28 03:12:30,201 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-28 03:12:30,201 INFO L274 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-11-28 03:12:30,201 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:12:30,201 INFO L277 CegarLoopResult]: At program point L47(lines 21 48) the Hoare annotation is: true [2020-11-28 03:12:30,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:12:30 BoogieIcfgContainer [2020-11-28 03:12:30,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:12:30,232 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:12:30,232 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:12:30,232 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:12:30,232 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:12:28" (3/4) ... [2020-11-28 03:12:30,236 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:12:30,247 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-28 03:12:30,248 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:12:30,248 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:12:30,249 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:12:30,294 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e7b04219-584f-4c0a-808d-775e6b9dfec6/bin/uautomizer/witness.graphml [2020-11-28 03:12:30,294 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:12:30,296 INFO L168 Benchmark]: Toolchain (without parser) took 2506.31 ms. Allocated memory was 94.4 MB in the beginning and 130.0 MB in the end (delta: 35.7 MB). Free memory was 65.9 MB in the beginning and 82.9 MB in the end (delta: -17.0 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:30,297 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 94.4 MB. Free memory is still 55.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:12:30,297 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.65 ms. Allocated memory is still 94.4 MB. Free memory was 65.7 MB in the beginning and 71.5 MB in the end (delta: -5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:30,298 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.89 ms. Allocated memory is still 94.4 MB. Free memory was 71.5 MB in the beginning and 69.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:30,299 INFO L168 Benchmark]: Boogie Preprocessor took 24.31 ms. Allocated memory is still 94.4 MB. Free memory was 69.9 MB in the beginning and 69.0 MB in the end (delta: 961.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:12:30,299 INFO L168 Benchmark]: RCFGBuilder took 416.25 ms. Allocated memory is still 94.4 MB. Free memory was 68.7 MB in the beginning and 56.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:30,300 INFO L168 Benchmark]: TraceAbstraction took 1666.82 ms. Allocated memory was 94.4 MB in the beginning and 130.0 MB in the end (delta: 35.7 MB). Free memory was 55.4 MB in the beginning and 85.8 MB in the end (delta: -30.4 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:30,301 INFO L168 Benchmark]: Witness Printer took 62.86 ms. Allocated memory is still 130.0 MB. Free memory was 85.8 MB in the beginning and 82.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:30,304 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 94.4 MB. Free memory is still 55.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 288.65 ms. Allocated memory is still 94.4 MB. Free memory was 65.7 MB in the beginning and 71.5 MB in the end (delta: -5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.89 ms. Allocated memory is still 94.4 MB. Free memory was 71.5 MB in the beginning and 69.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.31 ms. Allocated memory is still 94.4 MB. Free memory was 69.9 MB in the beginning and 69.0 MB in the end (delta: 961.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 416.25 ms. Allocated memory is still 94.4 MB. Free memory was 68.7 MB in the beginning and 56.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1666.82 ms. Allocated memory was 94.4 MB in the beginning and 130.0 MB in the end (delta: 35.7 MB). Free memory was 55.4 MB in the beginning and 85.8 MB in the end (delta: -30.4 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * Witness Printer took 62.86 ms. Allocated memory is still 130.0 MB. Free memory was 85.8 MB in the beginning and 82.9 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: 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: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((a == x && 1 <= c) && y == 1) && cond == 1) && 0 <= k) && az == a * z) && k <= 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((a == x && 1 <= cond) && 1 <= c) && y == 1) && cond == 1) && 0 <= k) && az == a * z) && k <= 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 44 SDtfs, 12 SDslu, 28 SDs, 0 SdLazy, 22 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 53 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 1201 SizeOfPredicates, 10 NumberOfNonLiveVariables, 158 ConjunctsInSsa, 16 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...