./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark43_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_67753076-aec4-4053-9622-22f657051993/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_67753076-aec4-4053-9622-22f657051993/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_67753076-aec4-4053-9622-22f657051993/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_67753076-aec4-4053-9622-22f657051993/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i -s /tmp/vcloud-vcloud-master/worker/run_dir_67753076-aec4-4053-9622-22f657051993/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_67753076-aec4-4053-9622-22f657051993/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 ee88e8123d344a14970849fa456c02e35e9325dc ...................................................................................................................................................................................................................................................................................................................................................................... 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 15:33:16,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:33:16,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:33:16,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:33:16,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:33:16,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:33:16,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:33:16,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:33:16,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:33:17,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:33:17,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:33:17,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:33:17,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:33:17,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:33:17,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:33:17,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:33:17,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:33:17,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:33:17,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:33:17,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:33:17,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:33:17,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:33:17,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:33:17,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:33:17,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:33:17,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:33:17,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:33:17,066 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:33:17,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:33:17,069 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:33:17,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:33:17,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:33:17,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:33:17,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:33:17,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:33:17,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:33:17,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:33:17,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:33:17,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:33:17,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:33:17,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:33:17,086 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_67753076-aec4-4053-9622-22f657051993/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:33:17,143 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:33:17,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:33:17,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:33:17,146 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:33:17,147 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:33:17,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:33:17,147 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:33:17,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:33:17,148 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:33:17,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:33:17,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:33:17,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:33:17,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:33:17,151 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:33:17,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:33:17,152 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:33:17,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:33:17,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:33:17,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:33:17,153 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:33:17,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:33:17,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:33:17,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:33:17,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:33:17,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:33:17,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:33:17,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:33:17,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:33:17,156 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:33:17,156 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_67753076-aec4-4053-9622-22f657051993/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_67753076-aec4-4053-9622-22f657051993/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee88e8123d344a14970849fa456c02e35e9325dc [2020-12-01 15:33:17,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:33:17,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:33:17,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:33:17,537 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:33:17,545 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:33:17,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_67753076-aec4-4053-9622-22f657051993/bin/uautomizer/../../sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i [2020-12-01 15:33:17,644 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_67753076-aec4-4053-9622-22f657051993/bin/uautomizer/data/9b64c16b6/9ad923c189094704bd7fe6ed6a04477a/FLAG30a81dbeb [2020-12-01 15:33:18,189 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:33:18,190 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_67753076-aec4-4053-9622-22f657051993/sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i [2020-12-01 15:33:18,198 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_67753076-aec4-4053-9622-22f657051993/bin/uautomizer/data/9b64c16b6/9ad923c189094704bd7fe6ed6a04477a/FLAG30a81dbeb [2020-12-01 15:33:18,546 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_67753076-aec4-4053-9622-22f657051993/bin/uautomizer/data/9b64c16b6/9ad923c189094704bd7fe6ed6a04477a [2020-12-01 15:33:18,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:33:18,552 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:33:18,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:33:18,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:33:18,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:33:18,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:33:18" (1/1) ... [2020-12-01 15:33:18,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d8ad497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:18, skipping insertion in model container [2020-12-01 15:33:18,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:33:18" (1/1) ... [2020-12-01 15:33:18,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:33:18,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:33:18,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:33:18,796 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:33:18,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:33:18,867 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:33:18,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:18 WrapperNode [2020-12-01 15:33:18,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:33:18,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:33:18,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:33:18,870 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:33:18,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:18" (1/1) ... [2020-12-01 15:33:18,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:18" (1/1) ... [2020-12-01 15:33:18,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:33:18,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:33:18,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:33:18,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:33:18,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:18" (1/1) ... [2020-12-01 15:33:18,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:18" (1/1) ... [2020-12-01 15:33:18,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:18" (1/1) ... [2020-12-01 15:33:18,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:18" (1/1) ... [2020-12-01 15:33:18,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:18" (1/1) ... [2020-12-01 15:33:18,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:18" (1/1) ... [2020-12-01 15:33:18,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:18" (1/1) ... [2020-12-01 15:33:18,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:33:18,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:33:18,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:33:18,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:33:18,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67753076-aec4-4053-9622-22f657051993/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 15:33:19,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:33:19,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:33:19,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:33:19,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:33:19,276 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:33:19,277 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 15:33:19,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:33:19 BoogieIcfgContainer [2020-12-01 15:33:19,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:33:19,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:33:19,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:33:19,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:33:19,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:33:18" (1/3) ... [2020-12-01 15:33:19,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67aa4ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:33:19, skipping insertion in model container [2020-12-01 15:33:19,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:18" (2/3) ... [2020-12-01 15:33:19,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67aa4ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:33:19, skipping insertion in model container [2020-12-01 15:33:19,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:33:19" (3/3) ... [2020-12-01 15:33:19,291 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark43_conjunctive.i [2020-12-01 15:33:19,310 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:33:19,314 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:33:19,330 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:33:19,363 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:33:19,363 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:33:19,363 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:33:19,363 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:33:19,363 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:33:19,364 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:33:19,364 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:33:19,364 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:33:19,381 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-12-01 15:33:19,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 15:33:19,388 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:33:19,389 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:33:19,390 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:33:19,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:19,398 INFO L82 PathProgramCache]: Analyzing trace with hash 185199154, now seen corresponding path program 1 times [2020-12-01 15:33:19,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:19,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653743885] [2020-12-01 15:33:19,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:19,569 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 15:33:19,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653743885] [2020-12-01 15:33:19,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:33:19,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:33:19,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26203370] [2020-12-01 15:33:19,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:33:19,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:33:19,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:33:19,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:33:19,598 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2020-12-01 15:33:19,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:33:19,617 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2020-12-01 15:33:19,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:33:19,619 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-01 15:33:19,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:33:19,650 INFO L225 Difference]: With dead ends: 22 [2020-12-01 15:33:19,651 INFO L226 Difference]: Without dead ends: 9 [2020-12-01 15:33:19,665 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 15:33:19,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-12-01 15:33:19,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-12-01 15:33:19,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-01 15:33:19,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-12-01 15:33:19,749 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2020-12-01 15:33:19,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:33:19,750 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-12-01 15:33:19,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:33:19,752 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-12-01 15:33:19,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 15:33:19,754 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:33:19,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:33:19,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:33:19,756 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:33:19,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:19,759 INFO L82 PathProgramCache]: Analyzing trace with hash 181505070, now seen corresponding path program 1 times [2020-12-01 15:33:19,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:19,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834117683] [2020-12-01 15:33:19,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:19,926 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 15:33:19,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834117683] [2020-12-01 15:33:19,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:33:19,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:33:19,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118264976] [2020-12-01 15:33:19,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:33:19,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:33:19,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:33:19,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:33:19,937 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 3 states. [2020-12-01 15:33:19,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:33:19,977 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-12-01 15:33:19,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:33:19,977 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-01 15:33:19,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:33:19,978 INFO L225 Difference]: With dead ends: 15 [2020-12-01 15:33:19,978 INFO L226 Difference]: Without dead ends: 10 [2020-12-01 15:33:19,979 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:33:19,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-12-01 15:33:19,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-12-01 15:33:19,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-01 15:33:19,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-12-01 15:33:19,984 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2020-12-01 15:33:19,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:33:19,984 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-12-01 15:33:19,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:33:19,985 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-12-01 15:33:19,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 15:33:19,985 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:33:19,986 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:33:19,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:33:19,986 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:33:19,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:19,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1383312870, now seen corresponding path program 1 times [2020-12-01 15:33:19,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:19,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312382369] [2020-12-01 15:33:19,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:20,215 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 15:33:20,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312382369] [2020-12-01 15:33:20,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702239058] [2020-12-01 15:33:20,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67753076-aec4-4053-9622-22f657051993/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 15:33:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:20,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 15:33:20,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:33:20,386 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:33:20,389 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:33:20,397 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:33:20,399 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:33:20,404 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:33:20,408 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:33:20,425 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 15:33:20,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:33:20,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-12-01 15:33:20,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073243698] [2020-12-01 15:33:20,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-01 15:33:20,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:33:20,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:33:20,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:33:20,429 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 8 states. [2020-12-01 15:33:20,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:33:20,471 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-12-01 15:33:20,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:33:20,471 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2020-12-01 15:33:20,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:33:20,480 INFO L225 Difference]: With dead ends: 10 [2020-12-01 15:33:20,482 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:33:20,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:33:20,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:33:20,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:33:20,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:33:20,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:33:20,483 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-12-01 15:33:20,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:33:20,484 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:33:20,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-01 15:33:20,484 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:33:20,484 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:33:20,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-01 15:33:20,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:33:20,742 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:33:20,742 INFO L258 CegarLoopResult]: At program point L23-2(lines 23 26) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 100) (<= ULTIMATE.start_main_~y~0 100)) [2020-12-01 15:33:20,743 INFO L262 CegarLoopResult]: For program point L23-3(lines 23 26) no Hoare annotation was computed. [2020-12-01 15:33:20,743 INFO L262 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-12-01 15:33:20,743 INFO L262 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-12-01 15:33:20,743 INFO L262 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-12-01 15:33:20,743 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:33:20,743 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:33:20,743 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:33:20,744 INFO L265 CegarLoopResult]: At program point L28(lines 19 29) the Hoare annotation is: true [2020-12-01 15:33:20,744 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2020-12-01 15:33:20,744 INFO L262 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-12-01 15:33:20,744 INFO L262 CegarLoopResult]: For program point L14(lines 14 18) no Hoare annotation was computed. [2020-12-01 15:33:20,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:33:20 BoogieIcfgContainer [2020-12-01 15:33:20,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:33:20,759 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:33:20,760 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:33:20,760 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:33:20,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:33:19" (3/4) ... [2020-12-01 15:33:20,763 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:33:20,775 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-01 15:33:20,775 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 15:33:20,775 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:33:20,776 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:33:20,817 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_67753076-aec4-4053-9622-22f657051993/bin/uautomizer/witness.graphml [2020-12-01 15:33:20,818 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:33:20,820 INFO L168 Benchmark]: Toolchain (without parser) took 2266.69 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 60.5 MB in the beginning and 81.0 MB in the end (delta: -20.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:33:20,820 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 90.2 MB. Free memory was 46.6 MB in the beginning and 46.5 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:33:20,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.31 ms. Allocated memory is still 90.2 MB. Free memory was 60.2 MB in the beginning and 68.4 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:33:20,822 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.32 ms. Allocated memory is still 90.2 MB. Free memory was 68.4 MB in the beginning and 67.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:33:20,822 INFO L168 Benchmark]: Boogie Preprocessor took 25.32 ms. Allocated memory is still 90.2 MB. Free memory was 67.1 MB in the beginning and 66.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:33:20,823 INFO L168 Benchmark]: RCFGBuilder took 341.54 ms. Allocated memory is still 90.2 MB. Free memory was 65.7 MB in the beginning and 55.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:33:20,824 INFO L168 Benchmark]: TraceAbstraction took 1477.54 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 54.9 MB in the beginning and 83.1 MB in the end (delta: -28.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:33:20,825 INFO L168 Benchmark]: Witness Printer took 58.28 ms. Allocated memory is still 109.1 MB. Free memory was 83.1 MB in the beginning and 81.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:33:20,829 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 90.2 MB. Free memory was 46.6 MB in the beginning and 46.5 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 314.31 ms. Allocated memory is still 90.2 MB. Free memory was 60.2 MB in the beginning and 68.4 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.32 ms. Allocated memory is still 90.2 MB. Free memory was 68.4 MB in the beginning and 67.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.32 ms. Allocated memory is still 90.2 MB. Free memory was 67.1 MB in the beginning and 66.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 341.54 ms. Allocated memory is still 90.2 MB. Free memory was 65.7 MB in the beginning and 55.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1477.54 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 54.9 MB in the beginning and 83.1 MB in the end (delta: -28.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 58.28 ms. Allocated memory is still 109.1 MB. Free memory was 83.1 MB in the beginning and 81.0 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: 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: 23]: Loop Invariant Derived loop invariant: x <= 100 && y <= 100 - 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: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 4 SDslu, 10 SDs, 0 SdLazy, 18 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s 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, 4 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 716 SizeOfPredicates, 3 NumberOfNonLiveVariables, 50 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...