./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark17_conjunctive.i --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_c89c7bd4-074f-4b34-9821-17f02f59d419/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c89c7bd4-074f-4b34-9821-17f02f59d419/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c89c7bd4-074f-4b34-9821-17f02f59d419/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c89c7bd4-074f-4b34-9821-17f02f59d419/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark17_conjunctive.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c89c7bd4-074f-4b34-9821-17f02f59d419/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c89c7bd4-074f-4b34-9821-17f02f59d419/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 b378e4d816fc03ad4f0d55b7b28d5e925e1eecc3 .................................................................................................................................................................................................................................................................................................................................................................. 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 14:57:14,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 14:57:14,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 14:57:14,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 14:57:14,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 14:57:14,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 14:57:14,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 14:57:14,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 14:57:14,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 14:57:14,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 14:57:14,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 14:57:14,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 14:57:14,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 14:57:14,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 14:57:14,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 14:57:14,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 14:57:14,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 14:57:14,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 14:57:14,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 14:57:14,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 14:57:14,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 14:57:14,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 14:57:14,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 14:57:14,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 14:57:14,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 14:57:14,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 14:57:14,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 14:57:14,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 14:57:14,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 14:57:14,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 14:57:14,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 14:57:14,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 14:57:14,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 14:57:14,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 14:57:14,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 14:57:14,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 14:57:14,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 14:57:14,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 14:57:14,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 14:57:14,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 14:57:14,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 14:57:14,915 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c89c7bd4-074f-4b34-9821-17f02f59d419/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 14:57:14,954 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 14:57:14,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 14:57:14,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 14:57:14,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 14:57:14,957 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 14:57:14,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 14:57:14,958 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 14:57:14,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 14:57:14,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 14:57:14,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 14:57:14,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 14:57:14,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 14:57:14,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 14:57:14,960 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 14:57:14,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 14:57:14,961 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 14:57:14,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 14:57:14,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 14:57:14,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 14:57:14,962 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 14:57:14,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 14:57:14,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 14:57:14,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 14:57:14,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 14:57:14,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 14:57:14,963 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 14:57:14,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 14:57:14,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 14:57:14,964 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 14:57:14,964 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_c89c7bd4-074f-4b34-9821-17f02f59d419/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c89c7bd4-074f-4b34-9821-17f02f59d419/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b378e4d816fc03ad4f0d55b7b28d5e925e1eecc3 [2020-12-01 14:57:15,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 14:57:15,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 14:57:15,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 14:57:15,256 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 14:57:15,257 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 14:57:15,258 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c89c7bd4-074f-4b34-9821-17f02f59d419/bin/uautomizer/../../sv-benchmarks/c/loop-zilu/benchmark17_conjunctive.i [2020-12-01 14:57:15,345 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c89c7bd4-074f-4b34-9821-17f02f59d419/bin/uautomizer/data/83cb310b8/1969d42282b643799bd4e5637831b714/FLAG0bf0af23c [2020-12-01 14:57:15,806 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 14:57:15,807 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c89c7bd4-074f-4b34-9821-17f02f59d419/sv-benchmarks/c/loop-zilu/benchmark17_conjunctive.i [2020-12-01 14:57:15,820 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c89c7bd4-074f-4b34-9821-17f02f59d419/bin/uautomizer/data/83cb310b8/1969d42282b643799bd4e5637831b714/FLAG0bf0af23c [2020-12-01 14:57:16,198 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c89c7bd4-074f-4b34-9821-17f02f59d419/bin/uautomizer/data/83cb310b8/1969d42282b643799bd4e5637831b714 [2020-12-01 14:57:16,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 14:57:16,202 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 14:57:16,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 14:57:16,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 14:57:16,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 14:57:16,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:57:16" (1/1) ... [2020-12-01 14:57:16,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62f465f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:16, skipping insertion in model container [2020-12-01 14:57:16,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:57:16" (1/1) ... [2020-12-01 14:57:16,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 14:57:16,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 14:57:16,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:57:16,428 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 14:57:16,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:57:16,472 INFO L208 MainTranslator]: Completed translation [2020-12-01 14:57:16,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:16 WrapperNode [2020-12-01 14:57:16,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 14:57:16,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 14:57:16,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 14:57:16,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 14:57:16,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:16" (1/1) ... [2020-12-01 14:57:16,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:16" (1/1) ... [2020-12-01 14:57:16,514 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 14:57:16,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 14:57:16,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 14:57:16,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 14:57:16,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:16" (1/1) ... [2020-12-01 14:57:16,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:16" (1/1) ... [2020-12-01 14:57:16,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:16" (1/1) ... [2020-12-01 14:57:16,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:16" (1/1) ... [2020-12-01 14:57:16,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:16" (1/1) ... [2020-12-01 14:57:16,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:16" (1/1) ... [2020-12-01 14:57:16,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:16" (1/1) ... [2020-12-01 14:57:16,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 14:57:16,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 14:57:16,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 14:57:16,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 14:57:16,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c89c7bd4-074f-4b34-9821-17f02f59d419/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 14:57:16,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 14:57:16,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 14:57:16,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 14:57:16,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 14:57:16,867 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 14:57:16,880 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 14:57:16,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:57:16 BoogieIcfgContainer [2020-12-01 14:57:16,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 14:57:16,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 14:57:16,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 14:57:16,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 14:57:16,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 02:57:16" (1/3) ... [2020-12-01 14:57:16,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6587ef07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:57:16, skipping insertion in model container [2020-12-01 14:57:16,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:16" (2/3) ... [2020-12-01 14:57:16,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6587ef07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:57:16, skipping insertion in model container [2020-12-01 14:57:16,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:57:16" (3/3) ... [2020-12-01 14:57:16,892 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark17_conjunctive.i [2020-12-01 14:57:16,919 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 14:57:16,922 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 14:57:16,950 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 14:57:17,006 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 14:57:17,006 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 14:57:17,006 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 14:57:17,006 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 14:57:17,006 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 14:57:17,007 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 14:57:17,007 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 14:57:17,007 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 14:57:17,021 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-12-01 14:57:17,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 14:57:17,027 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:57:17,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:57:17,028 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:57:17,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:57:17,035 INFO L82 PathProgramCache]: Analyzing trace with hash 185199154, now seen corresponding path program 1 times [2020-12-01 14:57:17,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:57:17,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433931833] [2020-12-01 14:57:17,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:57:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:17,270 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 14:57:17,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433931833] [2020-12-01 14:57:17,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:57:17,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 14:57:17,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019632294] [2020-12-01 14:57:17,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 14:57:17,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:57:17,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 14:57:17,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 14:57:17,305 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2020-12-01 14:57:17,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:57:17,322 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2020-12-01 14:57:17,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 14:57:17,324 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-01 14:57:17,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:57:17,334 INFO L225 Difference]: With dead ends: 22 [2020-12-01 14:57:17,334 INFO L226 Difference]: Without dead ends: 9 [2020-12-01 14:57:17,350 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 14:57:17,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-12-01 14:57:17,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-12-01 14:57:17,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-01 14:57:17,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-12-01 14:57:17,397 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2020-12-01 14:57:17,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:57:17,397 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-12-01 14:57:17,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 14:57:17,398 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-12-01 14:57:17,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 14:57:17,399 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:57:17,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:57:17,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 14:57:17,400 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:57:17,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:57:17,405 INFO L82 PathProgramCache]: Analyzing trace with hash 181505070, now seen corresponding path program 1 times [2020-12-01 14:57:17,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:57:17,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324640833] [2020-12-01 14:57:17,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:57:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:17,619 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 14:57:17,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324640833] [2020-12-01 14:57:17,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:57:17,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 14:57:17,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894368570] [2020-12-01 14:57:17,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 14:57:17,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:57:17,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 14:57:17,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:57:17,624 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2020-12-01 14:57:17,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:57:17,694 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-12-01 14:57:17,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 14:57:17,695 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-12-01 14:57:17,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:57:17,696 INFO L225 Difference]: With dead ends: 15 [2020-12-01 14:57:17,696 INFO L226 Difference]: Without dead ends: 10 [2020-12-01 14:57:17,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-01 14:57:17,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-12-01 14:57:17,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-12-01 14:57:17,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-01 14:57:17,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-12-01 14:57:17,701 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2020-12-01 14:57:17,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:57:17,701 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-12-01 14:57:17,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 14:57:17,702 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-12-01 14:57:17,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 14:57:17,702 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:57:17,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:57:17,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 14:57:17,703 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:57:17,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:57:17,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1383312870, now seen corresponding path program 1 times [2020-12-01 14:57:17,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:57:17,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43560609] [2020-12-01 14:57:17,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:57:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:17,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:57:17,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43560609] [2020-12-01 14:57:17,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190467383] [2020-12-01 14:57:17,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c89c7bd4-074f-4b34-9821-17f02f59d419/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 14:57:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:17,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 14:57:17,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:57:17,953 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 14:57:17,960 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 14:57:17,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:57:17,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 14:57:17,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2020-12-01 14:57:17,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767548594] [2020-12-01 14:57:17,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-01 14:57:17,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:57:17,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-01 14:57:17,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-12-01 14:57:17,979 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 10 states. [2020-12-01 14:57:18,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:57:18,088 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2020-12-01 14:57:18,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-01 14:57:18,089 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 9 [2020-12-01 14:57:18,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:57:18,089 INFO L225 Difference]: With dead ends: 13 [2020-12-01 14:57:18,089 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 14:57:18,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-12-01 14:57:18,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 14:57:18,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 14:57:18,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 14:57:18,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 14:57:18,091 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-12-01 14:57:18,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:57:18,091 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 14:57:18,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-01 14:57:18,092 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 14:57:18,092 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 14:57:18,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-01 14:57:18,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 14:57:18,345 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 14:57:18,346 INFO L265 CegarLoopResult]: At program point L29(lines 19 30) the Hoare annotation is: true [2020-12-01 14:57:18,346 INFO L262 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-12-01 14:57:18,346 INFO L262 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-12-01 14:57:18,346 INFO L262 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-12-01 14:57:18,347 INFO L262 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-12-01 14:57:18,347 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 14:57:18,347 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 14:57:18,347 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 14:57:18,347 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2020-12-01 14:57:18,348 INFO L258 CegarLoopResult]: At program point L24-2(lines 24 27) the Hoare annotation is: (<= ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~k~0) [2020-12-01 14:57:18,349 INFO L262 CegarLoopResult]: For program point L24-3(lines 24 27) no Hoare annotation was computed. [2020-12-01 14:57:18,349 INFO L262 CegarLoopResult]: For program point L14(lines 14 18) no Hoare annotation was computed. [2020-12-01 14:57:18,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 02:57:18 BoogieIcfgContainer [2020-12-01 14:57:18,366 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 14:57:18,366 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 14:57:18,366 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 14:57:18,366 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 14:57:18,367 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:57:16" (3/4) ... [2020-12-01 14:57:18,370 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 14:57:18,381 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-01 14:57:18,382 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 14:57:18,382 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 14:57:18,382 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 14:57:18,421 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c89c7bd4-074f-4b34-9821-17f02f59d419/bin/uautomizer/witness.graphml [2020-12-01 14:57:18,421 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 14:57:18,423 INFO L168 Benchmark]: Toolchain (without parser) took 2219.60 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 77.4 MB in the beginning and 97.8 MB in the end (delta: -20.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:57:18,423 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 104.9 MB. Free memory is still 60.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:57:18,424 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.41 ms. Allocated memory is still 104.9 MB. Free memory was 77.1 MB in the beginning and 82.4 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 14:57:18,425 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.61 ms. Allocated memory is still 104.9 MB. Free memory was 82.4 MB in the beginning and 81.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 14:57:18,425 INFO L168 Benchmark]: Boogie Preprocessor took 34.28 ms. Allocated memory is still 104.9 MB. Free memory was 81.0 MB in the beginning and 80.0 MB in the end (delta: 972.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:57:18,426 INFO L168 Benchmark]: RCFGBuilder took 330.89 ms. Allocated memory is still 104.9 MB. Free memory was 80.0 MB in the beginning and 68.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 14:57:18,426 INFO L168 Benchmark]: TraceAbstraction took 1481.56 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 68.4 MB in the beginning and 100.5 MB in the end (delta: -32.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:57:18,427 INFO L168 Benchmark]: Witness Printer took 55.10 ms. Allocated memory is still 125.8 MB. Free memory was 100.5 MB in the beginning and 97.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 14:57:18,430 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 104.9 MB. Free memory is still 60.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 271.41 ms. Allocated memory is still 104.9 MB. Free memory was 77.1 MB in the beginning and 82.4 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.61 ms. Allocated memory is still 104.9 MB. Free memory was 82.4 MB in the beginning and 81.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.28 ms. Allocated memory is still 104.9 MB. Free memory was 81.0 MB in the beginning and 80.0 MB in the end (delta: 972.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 330.89 ms. Allocated memory is still 104.9 MB. Free memory was 80.0 MB in the beginning and 68.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1481.56 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 68.4 MB in the beginning and 100.5 MB in the end (delta: -32.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 55.10 ms. Allocated memory is still 125.8 MB. Free memory was 100.5 MB in the beginning and 97.8 MB in the end (delta: 2.8 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: 11]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: i <= k - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 11 SDslu, 20 SDs, 0 SdLazy, 43 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 4 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 595 SizeOfPredicates, 4 NumberOfNonLiveVariables, 55 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 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...