./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound1.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_ca9f8f61-2105-4c43-b836-c7c9a51f774b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ca9f8f61-2105-4c43-b836-c7c9a51f774b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ca9f8f61-2105-4c43-b836-c7c9a51f774b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ca9f8f61-2105-4c43-b836-c7c9a51f774b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ca9f8f61-2105-4c43-b836-c7c9a51f774b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ca9f8f61-2105-4c43-b836-c7c9a51f774b/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 f9f290650d780763ff3347a7d8ce1c1fff3c6482 ............................................................................................................................................................................................................................................................................................................................................................................................. 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 02:56:28,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:56:28,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:56:28,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:56:28,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:56:28,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:56:28,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:56:28,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:56:28,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:56:28,525 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:56:28,526 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:56:28,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:56:28,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:56:28,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:56:28,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:56:28,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:56:28,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:56:28,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:56:28,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:56:28,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:56:28,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:56:28,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:56:28,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:56:28,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:56:28,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:56:28,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:56:28,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:56:28,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:56:28,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:56:28,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:56:28,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:56:28,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:56:28,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:56:28,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:56:28,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:56:28,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:56:28,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:56:28,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:56:28,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:56:28,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:56:28,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:56:28,582 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ca9f8f61-2105-4c43-b836-c7c9a51f774b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 02:56:28,622 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:56:28,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:56:28,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:56:28,624 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:56:28,625 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:56:28,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:56:28,625 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:56:28,625 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:56:28,626 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:56:28,626 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:56:28,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:56:28,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:56:28,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:56:28,627 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:56:28,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:56:28,628 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:56:28,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:56:28,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:56:28,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:56:28,629 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:56:28,629 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:56:28,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:56:28,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:56:28,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:56:28,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:56:28,630 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:56:28,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:56:28,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:56:28,631 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:56:28,631 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_ca9f8f61-2105-4c43-b836-c7c9a51f774b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ca9f8f61-2105-4c43-b836-c7c9a51f774b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9f290650d780763ff3347a7d8ce1c1fff3c6482 [2020-11-28 02:56:28,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:56:28,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:56:28,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:56:28,950 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:56:28,951 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:56:28,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ca9f8f61-2105-4c43-b836-c7c9a51f774b/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound1.c [2020-11-28 02:56:29,033 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ca9f8f61-2105-4c43-b836-c7c9a51f774b/bin/uautomizer/data/cfb2d9cc9/31dc18d6ae804c19944bd4152c7e5933/FLAGb7060d704 [2020-11-28 02:56:29,620 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:56:29,621 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ca9f8f61-2105-4c43-b836-c7c9a51f774b/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound1.c [2020-11-28 02:56:29,633 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ca9f8f61-2105-4c43-b836-c7c9a51f774b/bin/uautomizer/data/cfb2d9cc9/31dc18d6ae804c19944bd4152c7e5933/FLAGb7060d704 [2020-11-28 02:56:29,976 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ca9f8f61-2105-4c43-b836-c7c9a51f774b/bin/uautomizer/data/cfb2d9cc9/31dc18d6ae804c19944bd4152c7e5933 [2020-11-28 02:56:29,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:56:29,984 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:56:29,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:29,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:56:29,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:56:29,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:29" (1/1) ... [2020-11-28 02:56:29,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2079fd21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29, skipping insertion in model container [2020-11-28 02:56:29,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:29" (1/1) ... [2020-11-28 02:56:30,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:56:30,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:56:30,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:30,241 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:56:30,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:30,274 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:56:30,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30 WrapperNode [2020-11-28 02:56:30,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:30,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:30,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:56:30,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:56:30,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (1/1) ... [2020-11-28 02:56:30,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (1/1) ... [2020-11-28 02:56:30,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:30,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:56:30,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:56:30,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:56:30,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (1/1) ... [2020-11-28 02:56:30,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (1/1) ... [2020-11-28 02:56:30,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (1/1) ... [2020-11-28 02:56:30,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (1/1) ... [2020-11-28 02:56:30,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (1/1) ... [2020-11-28 02:56:30,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (1/1) ... [2020-11-28 02:56:30,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (1/1) ... [2020-11-28 02:56:30,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:56:30,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:56:30,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:56:30,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:56:30,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ca9f8f61-2105-4c43-b836-c7c9a51f774b/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 02:56:30,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:56:30,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:56:30,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:56:30,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:56:30,888 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:56:30,888 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-11-28 02:56:30,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:30 BoogieIcfgContainer [2020-11-28 02:56:30,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:56:30,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:56:30,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:56:30,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:56:30,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:56:29" (1/3) ... [2020-11-28 02:56:30,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe7aebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:30, skipping insertion in model container [2020-11-28 02:56:30,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (2/3) ... [2020-11-28 02:56:30,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe7aebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:30, skipping insertion in model container [2020-11-28 02:56:30,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:30" (3/3) ... [2020-11-28 02:56:30,900 INFO L111 eAbstractionObserver]: Analyzing ICFG geo3-ll_unwindbound1.c [2020-11-28 02:56:30,911 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:56:30,916 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 02:56:30,929 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 02:56:30,966 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:56:30,966 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:56:30,967 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:56:30,967 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:56:30,967 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:56:30,967 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:56:30,967 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:56:30,968 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:56:30,985 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-11-28 02:56:30,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 02:56:30,990 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:30,991 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 02:56:30,991 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:31,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:31,003 INFO L82 PathProgramCache]: Analyzing trace with hash 889571274, now seen corresponding path program 1 times [2020-11-28 02:56:31,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:31,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626130245] [2020-11-28 02:56:31,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:31,125 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 02:56:31,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1375530500] [2020-11-28 02:56:31,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ca9f8f61-2105-4c43-b836-c7c9a51f774b/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 02:56:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:31,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-28 02:56:31,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:56:31,479 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 02:56:31,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626130245] [2020-11-28 02:56:31,480 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 02:56:31,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375530500] [2020-11-28 02:56:31,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:31,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:56:31,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913026518] [2020-11-28 02:56:31,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:56:31,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:31,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:56:31,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:56:31,509 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2020-11-28 02:56:31,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:31,626 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2020-11-28 02:56:31,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:56:31,628 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-11-28 02:56:31,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:31,636 INFO L225 Difference]: With dead ends: 44 [2020-11-28 02:56:31,636 INFO L226 Difference]: Without dead ends: 19 [2020-11-28 02:56:31,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 02:56:31,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-28 02:56:31,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 16. [2020-11-28 02:56:31,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-28 02:56:31,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-11-28 02:56:31,673 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 6 [2020-11-28 02:56:31,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:31,674 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-11-28 02:56:31,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:56:31,674 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-11-28 02:56:31,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 02:56:31,675 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:31,675 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:31,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-11-28 02:56:31,891 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:31,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:31,891 INFO L82 PathProgramCache]: Analyzing trace with hash 885278358, now seen corresponding path program 1 times [2020-11-28 02:56:31,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:31,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945138296] [2020-11-28 02:56:31,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:31,904 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 02:56:31,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [367472845] [2020-11-28 02:56:31,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ca9f8f61-2105-4c43-b836-c7c9a51f774b/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 02:56:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:31,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 02:56:31,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:56:32,034 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:32,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945138296] [2020-11-28 02:56:32,034 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 02:56:32,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367472845] [2020-11-28 02:56:32,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-28 02:56:32,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-11-28 02:56:32,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284389573] [2020-11-28 02:56:32,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:56:32,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:32,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:56:32,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:56:32,037 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 5 states. [2020-11-28 02:56:32,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:32,072 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2020-11-28 02:56:32,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:56:32,074 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-28 02:56:32,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:32,074 INFO L225 Difference]: With dead ends: 22 [2020-11-28 02:56:32,074 INFO L226 Difference]: Without dead ends: 12 [2020-11-28 02:56:32,075 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:56:32,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-28 02:56:32,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-28 02:56:32,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-28 02:56:32,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-11-28 02:56:32,082 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2020-11-28 02:56:32,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:32,083 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-11-28 02:56:32,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:56:32,084 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-11-28 02:56:32,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 02:56:32,086 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:32,086 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:32,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:56:32,307 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:32,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:32,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1673782672, now seen corresponding path program 1 times [2020-11-28 02:56:32,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:32,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933877476] [2020-11-28 02:56:32,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:32,318 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 02:56:32,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [525692974] [2020-11-28 02:56:32,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ca9f8f61-2105-4c43-b836-c7c9a51f774b/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:56:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:32,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 22 conjunts are in the unsatisfiable core [2020-11-28 02:56:32,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:56:32,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:32,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933877476] [2020-11-28 02:56:32,584 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 02:56:32,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525692974] [2020-11-28 02:56:32,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-28 02:56:32,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-11-28 02:56:32,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648626736] [2020-11-28 02:56:32,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 02:56:32,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:32,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 02:56:32,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:56:32,586 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 6 states. [2020-11-28 02:56:33,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:33,434 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-11-28 02:56:33,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:56:33,435 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-11-28 02:56:33,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:33,435 INFO L225 Difference]: With dead ends: 12 [2020-11-28 02:56:33,435 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 02:56:33,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-28 02:56:33,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 02:56:33,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 02:56:33,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 02:56:33,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 02:56:33,437 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-11-28 02:56:33,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:33,437 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:56:33,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 02:56:33,437 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 02:56:33,437 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 02:56:33,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:56:33,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 02:56:33,756 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 02:56:33,757 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-28 02:56:33,757 INFO L274 CegarLoopResult]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-11-28 02:56:33,757 INFO L270 CegarLoopResult]: At program point L15-1(lines 37 38) the Hoare annotation is: (and (<= 1 ~counter~0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_main_~az~0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0))) [2020-11-28 02:56:33,757 INFO L274 CegarLoopResult]: For program point L15-2(lines 15 18) no Hoare annotation was computed. [2020-11-28 02:56:33,757 INFO L277 CegarLoopResult]: At program point L15-3(lines 14 20) the Hoare annotation is: true [2020-11-28 02:56:33,758 INFO L274 CegarLoopResult]: For program point L34-1(lines 34 43) no Hoare annotation was computed. [2020-11-28 02:56:33,758 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 02:56:33,758 INFO L270 CegarLoopResult]: At program point L34-3(lines 34 43) the Hoare annotation is: (let ((.cse0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0))) (let ((.cse1 (= ULTIMATE.start_main_~az~0 .cse0))) (or (and (<= 1 ~counter~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~x~0 (+ .cse0 ULTIMATE.start_main_~a~0)) .cse1) (and (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~y~0 1) (<= 0 ~counter~0) .cse1)))) [2020-11-28 02:56:33,758 INFO L274 CegarLoopResult]: For program point L34-4(lines 34 43) no Hoare annotation was computed. [2020-11-28 02:56:33,758 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 02:56:33,758 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 02:56:33,759 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-28 02:56:33,759 INFO L274 CegarLoopResult]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-11-28 02:56:33,759 INFO L274 CegarLoopResult]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-11-28 02:56:33,759 INFO L277 CegarLoopResult]: At program point L45(lines 22 46) the Hoare annotation is: true [2020-11-28 02:56:33,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:56:33 BoogieIcfgContainer [2020-11-28 02:56:33,787 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:56:33,788 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:56:33,788 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:56:33,789 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:56:33,789 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:30" (3/4) ... [2020-11-28 02:56:33,792 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 02:56:33,803 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-28 02:56:33,804 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 02:56:33,804 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 02:56:33,805 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 02:56:33,862 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ca9f8f61-2105-4c43-b836-c7c9a51f774b/bin/uautomizer/witness.graphml [2020-11-28 02:56:33,866 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:56:33,868 INFO L168 Benchmark]: Toolchain (without parser) took 3883.36 ms. Allocated memory was 88.1 MB in the beginning and 127.9 MB in the end (delta: 39.8 MB). Free memory was 61.4 MB in the beginning and 85.1 MB in the end (delta: -23.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:33,869 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 88.1 MB. Free memory is still 45.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:33,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.59 ms. Allocated memory was 88.1 MB in the beginning and 127.9 MB in the end (delta: 39.8 MB). Free memory was 61.1 MB in the beginning and 104.8 MB in the end (delta: -43.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:33,873 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.47 ms. Allocated memory is still 127.9 MB. Free memory was 104.8 MB in the beginning and 103.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:33,875 INFO L168 Benchmark]: Boogie Preprocessor took 39.87 ms. Allocated memory is still 127.9 MB. Free memory was 103.5 MB in the beginning and 102.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:33,875 INFO L168 Benchmark]: RCFGBuilder took 526.85 ms. Allocated memory is still 127.9 MB. Free memory was 102.2 MB in the beginning and 90.1 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:33,876 INFO L168 Benchmark]: TraceAbstraction took 2894.55 ms. Allocated memory is still 127.9 MB. Free memory was 89.7 MB in the beginning and 88.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:33,876 INFO L168 Benchmark]: Witness Printer took 78.17 ms. Allocated memory is still 127.9 MB. Free memory was 87.2 MB in the beginning and 85.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:33,879 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 88.1 MB. Free memory is still 45.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 287.59 ms. Allocated memory was 88.1 MB in the beginning and 127.9 MB in the end (delta: 39.8 MB). Free memory was 61.1 MB in the beginning and 104.8 MB in the end (delta: -43.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.47 ms. Allocated memory is still 127.9 MB. Free memory was 104.8 MB in the beginning and 103.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.87 ms. Allocated memory is still 127.9 MB. Free memory was 103.5 MB in the beginning and 102.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 526.85 ms. Allocated memory is still 127.9 MB. Free memory was 102.2 MB in the beginning and 90.1 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2894.55 ms. Allocated memory is still 127.9 MB. Free memory was 89.7 MB in the beginning and 88.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * Witness Printer took 78.17 ms. Allocated memory is still 127.9 MB. Free memory was 87.2 MB in the beginning and 85.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((((1 <= counter && 1 <= cond) && z == y) && x == a * z + a) && az == a * z) || (((a == x && y == 1) && 0 <= counter) && az == a * z) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: (((1 <= counter && a == x) && 1 == cond) && y == 1) && az == a * z - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 27 SDslu, 42 SDs, 0 SdLazy, 37 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 58 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 1392 SizeOfPredicates, 17 NumberOfNonLiveVariables, 229 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/5 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...