./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 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bf188846-7831-4aa6-968b-b9bbd48ff4cd/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bf188846-7831-4aa6-968b-b9bbd48ff4cd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bf188846-7831-4aa6-968b-b9bbd48ff4cd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bf188846-7831-4aa6-968b-b9bbd48ff4cd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bf188846-7831-4aa6-968b-b9bbd48ff4cd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bf188846-7831-4aa6-968b-b9bbd48ff4cd/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 0.2.0-69874e2 [2020-12-01 14:56:49,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 14:56:49,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 14:56:49,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 14:56:49,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 14:56:49,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 14:56:49,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 14:56:49,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 14:56:49,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 14:56:49,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 14:56:49,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 14:56:49,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 14:56:49,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 14:56:49,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 14:56:49,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 14:56:49,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 14:56:49,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 14:56:49,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 14:56:49,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 14:56:49,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 14:56:49,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 14:56:49,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 14:56:49,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 14:56:49,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 14:56:49,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 14:56:49,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 14:56:49,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 14:56:49,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 14:56:49,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 14:56:49,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 14:56:49,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 14:56:49,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 14:56:49,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 14:56:49,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 14:56:49,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 14:56:49,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 14:56:49,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 14:56:49,452 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 14:56:49,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 14:56:49,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 14:56:49,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 14:56:49,457 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bf188846-7831-4aa6-968b-b9bbd48ff4cd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 14:56:49,505 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 14:56:49,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 14:56:49,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 14:56:49,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 14:56:49,511 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 14:56:49,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 14:56:49,512 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 14:56:49,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 14:56:49,513 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 14:56:49,513 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 14:56:49,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 14:56:49,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 14:56:49,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 14:56:49,515 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 14:56:49,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 14:56:49,515 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 14:56:49,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 14:56:49,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 14:56:49,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 14:56:49,517 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 14:56:49,517 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 14:56:49,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 14:56:49,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 14:56:49,518 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 14:56:49,518 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 14:56:49,518 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 14:56:49,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 14:56:49,519 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 14:56:49,519 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 14:56:49,519 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_bf188846-7831-4aa6-968b-b9bbd48ff4cd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bf188846-7831-4aa6-968b-b9bbd48ff4cd/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58edc92b721c1f9ebb1bf2bfb3fa6c635e179544 [2020-12-01 14:56:49,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 14:56:49,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 14:56:49,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 14:56:49,839 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 14:56:49,840 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 14:56:49,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bf188846-7831-4aa6-968b-b9bbd48ff4cd/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c [2020-12-01 14:56:49,920 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf188846-7831-4aa6-968b-b9bbd48ff4cd/bin/uautomizer/data/f3793fbc1/f6d7f05bda6e4f26be8911537d2bbae0/FLAG2cab8a4a3 [2020-12-01 14:56:50,438 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 14:56:50,438 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bf188846-7831-4aa6-968b-b9bbd48ff4cd/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c [2020-12-01 14:56:50,444 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf188846-7831-4aa6-968b-b9bbd48ff4cd/bin/uautomizer/data/f3793fbc1/f6d7f05bda6e4f26be8911537d2bbae0/FLAG2cab8a4a3 [2020-12-01 14:56:50,797 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bf188846-7831-4aa6-968b-b9bbd48ff4cd/bin/uautomizer/data/f3793fbc1/f6d7f05bda6e4f26be8911537d2bbae0 [2020-12-01 14:56:50,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 14:56:50,801 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 14:56:50,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 14:56:50,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 14:56:50,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 14:56:50,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:56:50" (1/1) ... [2020-12-01 14:56:50,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c41fc68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:50, skipping insertion in model container [2020-12-01 14:56:50,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:56:50" (1/1) ... [2020-12-01 14:56:50,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 14:56:50,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 14:56:51,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:56:51,039 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 14:56:51,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:56:51,089 INFO L208 MainTranslator]: Completed translation [2020-12-01 14:56:51,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:51 WrapperNode [2020-12-01 14:56:51,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 14:56:51,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 14:56:51,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 14:56:51,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 14:56:51,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:51" (1/1) ... [2020-12-01 14:56:51,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:51" (1/1) ... [2020-12-01 14:56:51,136 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 14:56:51,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 14:56:51,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 14:56:51,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 14:56:51,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:51" (1/1) ... [2020-12-01 14:56:51,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:51" (1/1) ... [2020-12-01 14:56:51,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:51" (1/1) ... [2020-12-01 14:56:51,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:51" (1/1) ... [2020-12-01 14:56:51,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:51" (1/1) ... [2020-12-01 14:56:51,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:51" (1/1) ... [2020-12-01 14:56:51,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:51" (1/1) ... [2020-12-01 14:56:51,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 14:56:51,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 14:56:51,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 14:56:51,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 14:56:51,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf188846-7831-4aa6-968b-b9bbd48ff4cd/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 14:56:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 14:56:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 14:56:51,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 14:56:51,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 14:56:51,527 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 14:56:51,527 INFO L298 CfgBuilder]: Removed 17 assume(true) statements. [2020-12-01 14:56:51,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:56:51 BoogieIcfgContainer [2020-12-01 14:56:51,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 14:56:51,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 14:56:51,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 14:56:51,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 14:56:51,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 02:56:50" (1/3) ... [2020-12-01 14:56:51,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@101bdd6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:56:51, skipping insertion in model container [2020-12-01 14:56:51,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:56:51" (2/3) ... [2020-12-01 14:56:51,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@101bdd6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:56:51, skipping insertion in model container [2020-12-01 14:56:51,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:56:51" (3/3) ... [2020-12-01 14:56:51,537 INFO L111 eAbstractionObserver]: Analyzing ICFG geo2-ll_valuebound1.c [2020-12-01 14:56:51,550 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 14:56:51,553 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-01 14:56:51,589 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-01 14:56:51,625 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 14:56:51,625 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 14:56:51,625 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 14:56:51,626 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 14:56:51,626 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 14:56:51,626 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 14:56:51,626 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 14:56:51,626 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 14:56:51,638 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-12-01 14:56:51,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 14:56:51,657 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:51,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:51,658 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:56:51,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:51,670 INFO L82 PathProgramCache]: Analyzing trace with hash -594062832, now seen corresponding path program 1 times [2020-12-01 14:56:51,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:51,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553516744] [2020-12-01 14:56:51,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:51,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:51,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553516744] [2020-12-01 14:56:51,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:51,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 14:56:51,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064227854] [2020-12-01 14:56:51,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 14:56:51,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:51,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 14:56:51,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 14:56:51,889 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2020-12-01 14:56:51,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:51,906 INFO L93 Difference]: Finished difference Result 35 states and 46 transitions. [2020-12-01 14:56:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 14:56:51,908 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-01 14:56:51,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:51,918 INFO L225 Difference]: With dead ends: 35 [2020-12-01 14:56:51,918 INFO L226 Difference]: Without dead ends: 15 [2020-12-01 14:56:51,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 14:56:51,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-12-01 14:56:51,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-12-01 14:56:51,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-12-01 14:56:51,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-12-01 14:56:51,969 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 9 [2020-12-01 14:56:51,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:51,970 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-12-01 14:56:51,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 14:56:51,971 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-12-01 14:56:51,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 14:56:51,971 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:51,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:51,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 14:56:51,972 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:56:51,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:51,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1182791572, now seen corresponding path program 1 times [2020-12-01 14:56:51,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:51,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834847844] [2020-12-01 14:56:51,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:52,026 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-01 14:56:52,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1371348457] [2020-12-01 14:56:52,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf188846-7831-4aa6-968b-b9bbd48ff4cd/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 14:56:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:52,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 14:56:52,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:56:52,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:52,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834847844] [2020-12-01 14:56:52,299 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-01 14:56:52,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371348457] [2020-12-01 14:56:52,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:52,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-01 14:56:52,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618073288] [2020-12-01 14:56:52,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 14:56:52,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:52,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 14:56:52,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-01 14:56:52,304 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 6 states. [2020-12-01 14:56:52,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:52,421 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2020-12-01 14:56:52,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 14:56:52,421 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-12-01 14:56:52,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:52,422 INFO L225 Difference]: With dead ends: 25 [2020-12-01 14:56:52,422 INFO L226 Difference]: Without dead ends: 19 [2020-12-01 14:56:52,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-01 14:56:52,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-01 14:56:52,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-12-01 14:56:52,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-01 14:56:52,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-12-01 14:56:52,428 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 9 [2020-12-01 14:56:52,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:52,428 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-12-01 14:56:52,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 14:56:52,429 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-12-01 14:56:52,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 14:56:52,429 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:56:52,430 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:56:52,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-01 14:56:52,646 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:56:52,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:56:52,647 INFO L82 PathProgramCache]: Analyzing trace with hash 637918818, now seen corresponding path program 1 times [2020-12-01 14:56:52,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:56:52,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118239591] [2020-12-01 14:56:52,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:56:52,688 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-01 14:56:52,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2034815865] [2020-12-01 14:56:52,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf188846-7831-4aa6-968b-b9bbd48ff4cd/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 [2020-12-01 14:56:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:56:52,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 14:56:52,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:56:52,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:56:52,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118239591] [2020-12-01 14:56:52,909 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-01 14:56:52,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034815865] [2020-12-01 14:56:52,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:56:52,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 14:56:52,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206076757] [2020-12-01 14:56:52,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 14:56:52,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:56:52,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 14:56:52,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:56:52,912 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2020-12-01 14:56:53,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:56:53,008 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-12-01 14:56:53,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 14:56:53,011 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-01 14:56:53,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:56:53,011 INFO L225 Difference]: With dead ends: 18 [2020-12-01 14:56:53,011 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 14:56:53,014 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 [2020-12-01 14:56:53,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 14:56:53,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 14:56:53,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 14:56:53,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 14:56:53,015 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-12-01 14:56:53,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:56:53,016 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 14:56:53,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 14:56:53,016 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 14:56:53,016 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 14:56:53,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 14:56:53,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 14:56:53,304 INFO L258 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)) [2020-12-01 14:56:53,304 INFO L262 CegarLoopResult]: For program point L35-3(lines 35 44) no Hoare annotation was computed. [2020-12-01 14:56:53,304 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-12-01 14:56:53,304 INFO L262 CegarLoopResult]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-12-01 14:56:53,305 INFO L258 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)) [2020-12-01 14:56:53,305 INFO L262 CegarLoopResult]: For program point L15-2(lines 15 18) no Hoare annotation was computed. [2020-12-01 14:56:53,305 INFO L265 CegarLoopResult]: At program point L15-3(lines 14 20) the Hoare annotation is: true [2020-12-01 14:56:53,305 INFO L262 CegarLoopResult]: For program point L11(lines 11 13) no Hoare annotation was computed. [2020-12-01 14:56:53,305 INFO L262 CegarLoopResult]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2020-12-01 14:56:53,306 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 14:56:53,306 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 14:56:53,306 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 14:56:53,306 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-12-01 14:56:53,306 INFO L262 CegarLoopResult]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-12-01 14:56:53,306 INFO L262 CegarLoopResult]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-12-01 14:56:53,307 INFO L262 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-01 14:56:53,307 INFO L262 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-12-01 14:56:53,307 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 14:56:53,307 INFO L265 CegarLoopResult]: At program point L46(lines 23 47) the Hoare annotation is: true [2020-12-01 14:56:53,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 02:56:53 BoogieIcfgContainer [2020-12-01 14:56:53,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 14:56:53,324 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 14:56:53,324 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 14:56:53,325 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 14:56:53,325 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:56:51" (3/4) ... [2020-12-01 14:56:53,328 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 14:56:53,338 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-12-01 14:56:53,339 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 14:56:53,339 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 14:56:53,339 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 14:56:53,379 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bf188846-7831-4aa6-968b-b9bbd48ff4cd/bin/uautomizer/witness.graphml [2020-12-01 14:56:53,380 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 14:56:53,381 INFO L168 Benchmark]: Toolchain (without parser) took 2579.66 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 64.1 MB in the beginning and 75.4 MB in the end (delta: -11.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2020-12-01 14:56:53,382 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 94.4 MB. Free memory was 53.6 MB in the beginning and 53.6 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:56:53,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.39 ms. Allocated memory is still 94.4 MB. Free memory was 63.8 MB in the beginning and 71.2 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 14:56:53,383 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.35 ms. Allocated memory is still 94.4 MB. Free memory was 71.2 MB in the beginning and 69.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 14:56:53,384 INFO L168 Benchmark]: Boogie Preprocessor took 38.36 ms. Allocated memory is still 94.4 MB. Free memory was 69.6 MB in the beginning and 68.8 MB in the end (delta: 752.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:56:53,384 INFO L168 Benchmark]: RCFGBuilder took 350.85 ms. Allocated memory is still 94.4 MB. Free memory was 68.5 MB in the beginning and 55.9 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 14:56:53,385 INFO L168 Benchmark]: TraceAbstraction took 1793.77 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 55.6 MB in the beginning and 78.2 MB in the end (delta: -22.6 MB). Peak memory consumption was 416.0 kB. Max. memory is 16.1 GB. [2020-12-01 14:56:53,386 INFO L168 Benchmark]: Witness Printer took 55.49 ms. Allocated memory is still 115.3 MB. Free memory was 78.2 MB in the beginning and 75.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 14:56:53,389 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 94.4 MB. Free memory was 53.6 MB in the beginning and 53.6 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 288.39 ms. Allocated memory is still 94.4 MB. Free memory was 63.8 MB in the beginning and 71.2 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.35 ms. Allocated memory is still 94.4 MB. Free memory was 71.2 MB in the beginning and 69.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.36 ms. Allocated memory is still 94.4 MB. Free memory was 69.6 MB in the beginning and 68.8 MB in the end (delta: 752.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 350.85 ms. Allocated memory is still 94.4 MB. Free memory was 68.5 MB in the beginning and 55.9 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1793.77 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 55.6 MB in the beginning and 78.2 MB in the end (delta: -22.6 MB). Peak memory consumption was 416.0 kB. Max. memory is 16.1 GB. * Witness Printer took 55.49 ms. Allocated memory is still 115.3 MB. Free memory was 78.2 MB in the beginning and 75.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 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: 1.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, 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, 0.2s 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 1267 SizeOfPredicates, 9 NumberOfNonLiveVariables, 136 ConjunctsInSsa, 22 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...