./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark25_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4f1d8460-2d86-4c6f-af26-fa7401208fec/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4f1d8460-2d86-4c6f-af26-fa7401208fec/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4f1d8460-2d86-4c6f-af26-fa7401208fec/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4f1d8460-2d86-4c6f-af26-fa7401208fec/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark25_linear.i -s /tmp/vcloud-vcloud-master/worker/run_dir_4f1d8460-2d86-4c6f-af26-fa7401208fec/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4f1d8460-2d86-4c6f-af26-fa7401208fec/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 57db2827f748fdac723600595d50868896f17762 ............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:19:05,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:19:05,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:19:05,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:19:05,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:19:05,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:19:05,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:19:06,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:19:06,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:19:06,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:19:06,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:19:06,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:19:06,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:19:06,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:19:06,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:19:06,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:19:06,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:19:06,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:19:06,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:19:06,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:19:06,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:19:06,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:19:06,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:19:06,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:19:06,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:19:06,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:19:06,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:19:06,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:19:06,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:19:06,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:19:06,062 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:19:06,063 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:19:06,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:19:06,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:19:06,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:19:06,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:19:06,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:19:06,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:19:06,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:19:06,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:19:06,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:19:06,076 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4f1d8460-2d86-4c6f-af26-fa7401208fec/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-11-28 03:19:06,116 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:19:06,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:19:06,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:19:06,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:19:06,119 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:19:06,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:19:06,119 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:19:06,120 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:19:06,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:19:06,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:19:06,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:19:06,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:19:06,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:19:06,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:19:06,122 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 03:19:06,122 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:19:06,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:19:06,123 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:19:06,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:19:06,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:19:06,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:19:06,124 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:19:06,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:19:06,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:19:06,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:19:06,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:19:06,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:19:06,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:19:06,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:19:06,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:19:06,126 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:19:06,126 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_4f1d8460-2d86-4c6f-af26-fa7401208fec/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4f1d8460-2d86-4c6f-af26-fa7401208fec/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57db2827f748fdac723600595d50868896f17762 [2020-11-28 03:19:06,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:19:06,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:19:06,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:19:06,471 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:19:06,472 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:19:06,473 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4f1d8460-2d86-4c6f-af26-fa7401208fec/bin/uautomizer/../../sv-benchmarks/c/loop-zilu/benchmark25_linear.i [2020-11-28 03:19:06,548 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4f1d8460-2d86-4c6f-af26-fa7401208fec/bin/uautomizer/data/6823244a1/78e55b95e4eb43a7a13917e6ca618fa2/FLAG82f631466 [2020-11-28 03:19:07,086 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:19:07,087 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4f1d8460-2d86-4c6f-af26-fa7401208fec/sv-benchmarks/c/loop-zilu/benchmark25_linear.i [2020-11-28 03:19:07,098 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4f1d8460-2d86-4c6f-af26-fa7401208fec/bin/uautomizer/data/6823244a1/78e55b95e4eb43a7a13917e6ca618fa2/FLAG82f631466 [2020-11-28 03:19:07,435 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4f1d8460-2d86-4c6f-af26-fa7401208fec/bin/uautomizer/data/6823244a1/78e55b95e4eb43a7a13917e6ca618fa2 [2020-11-28 03:19:07,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:19:07,441 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:19:07,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:07,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:19:07,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:19:07,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18d5c52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07, skipping insertion in model container [2020-11-28 03:19:07,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:19:07,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:19:07,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:07,663 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:19:07,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:07,716 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:19:07,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07 WrapperNode [2020-11-28 03:19:07,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:07,718 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:07,718 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:19:07,718 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:19:07,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:07,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:19:07,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:19:07,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:19:07,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:19:07,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:19:07,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:19:07,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:19:07,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f1d8460-2d86-4c6f-af26-fa7401208fec/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:19:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:19:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:19:07,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:19:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:19:08,265 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:19:08,265 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:19:08,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:08 BoogieIcfgContainer [2020-11-28 03:19:08,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:19:08,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:19:08,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:19:08,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:19:08,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:19:07" (1/3) ... [2020-11-28 03:19:08,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b0d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:08, skipping insertion in model container [2020-11-28 03:19:08,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (2/3) ... [2020-11-28 03:19:08,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b0d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:08, skipping insertion in model container [2020-11-28 03:19:08,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:08" (3/3) ... [2020-11-28 03:19:08,282 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark25_linear.i [2020-11-28 03:19:08,299 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:19:08,303 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 03:19:08,316 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 03:19:08,351 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:19:08,351 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:19:08,351 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:19:08,352 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:19:08,352 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:19:08,352 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:19:08,352 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:19:08,352 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:19:08,371 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-11-28 03:19:08,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 03:19:08,376 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:08,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 03:19:08,377 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:19:08,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:08,383 INFO L82 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2020-11-28 03:19:08,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:08,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508629980] [2020-11-28 03:19:08,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:08,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:08,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508629980] [2020-11-28 03:19:08,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:08,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:19:08,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275685517] [2020-11-28 03:19:08,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:19:08,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:08,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:19:08,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:19:08,625 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2020-11-28 03:19:08,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:08,709 INFO L93 Difference]: Finished difference Result 26 states and 34 transitions. [2020-11-28 03:19:08,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:19:08,711 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-28 03:19:08,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:08,721 INFO L225 Difference]: With dead ends: 26 [2020-11-28 03:19:08,721 INFO L226 Difference]: Without dead ends: 11 [2020-11-28 03:19:08,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:19:08,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-11-28 03:19:08,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-11-28 03:19:08,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-28 03:19:08,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-11-28 03:19:08,815 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2020-11-28 03:19:08,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:08,816 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-11-28 03:19:08,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:19:08,816 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-11-28 03:19:08,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 03:19:08,817 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:08,817 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:19:08,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:19:08,817 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:19:08,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:08,818 INFO L82 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2020-11-28 03:19:08,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:08,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046298159] [2020-11-28 03:19:08,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:08,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:08,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046298159] [2020-11-28 03:19:08,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:08,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:19:08,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776422832] [2020-11-28 03:19:08,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:19:08,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:08,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:19:08,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:19:08,898 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 3 states. [2020-11-28 03:19:08,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:08,928 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-11-28 03:19:08,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:19:08,929 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-28 03:19:08,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:08,930 INFO L225 Difference]: With dead ends: 10 [2020-11-28 03:19:08,930 INFO L226 Difference]: Without dead ends: 9 [2020-11-28 03:19:08,931 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:19:08,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-11-28 03:19:08,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-11-28 03:19:08,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-28 03:19:08,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-11-28 03:19:08,934 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2020-11-28 03:19:08,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:08,934 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-11-28 03:19:08,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:19:08,934 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-11-28 03:19:08,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 03:19:08,935 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:08,935 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:08,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:19:08,935 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:19:08,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:08,938 INFO L82 PathProgramCache]: Analyzing trace with hash 183289263, now seen corresponding path program 1 times [2020-11-28 03:19:08,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:08,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252122419] [2020-11-28 03:19:08,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:08,998 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 03:19:08,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252122419] [2020-11-28 03:19:08,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:08,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:19:08,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545773266] [2020-11-28 03:19:08,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:19:08,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:09,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:19:09,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:19:09,000 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 3 states. [2020-11-28 03:19:09,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:09,021 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2020-11-28 03:19:09,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:19:09,022 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-28 03:19:09,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:09,023 INFO L225 Difference]: With dead ends: 9 [2020-11-28 03:19:09,023 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:19:09,024 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:19:09,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:19:09,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:19:09,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:19:09,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:19:09,024 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2020-11-28 03:19:09,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:09,025 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:19:09,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:19:09,025 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:19:09,025 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:19:09,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:19:09,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:19:09,047 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2020-11-28 03:19:09,047 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:19:09,047 INFO L274 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-11-28 03:19:09,047 INFO L274 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-11-28 03:19:09,048 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-11-28 03:19:09,048 INFO L274 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-11-28 03:19:09,048 INFO L274 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-11-28 03:19:09,048 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:19:09,048 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2020-11-28 03:19:09,048 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:19:09,048 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:19:09,049 INFO L277 CegarLoopResult]: At program point L26(lines 19 27) the Hoare annotation is: true [2020-11-28 03:19:09,049 INFO L270 CegarLoopResult]: At program point L22-2(lines 22 24) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) [2020-11-28 03:19:09,049 INFO L274 CegarLoopResult]: For program point L22-3(lines 22 24) no Hoare annotation was computed. [2020-11-28 03:19:09,049 INFO L274 CegarLoopResult]: For program point L14(lines 14 18) no Hoare annotation was computed. [2020-11-28 03:19:09,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:19:09 BoogieIcfgContainer [2020-11-28 03:19:09,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:19:09,066 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:19:09,066 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:19:09,066 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:19:09,067 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:08" (3/4) ... [2020-11-28 03:19:09,070 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:19:09,080 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 03:19:09,080 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:19:09,081 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:19:09,081 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:19:09,131 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4f1d8460-2d86-4c6f-af26-fa7401208fec/bin/uautomizer/witness.graphml [2020-11-28 03:19:09,132 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:19:09,134 INFO L168 Benchmark]: Toolchain (without parser) took 1691.52 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 70.2 MB in the beginning and 72.9 MB in the end (delta: -2.7 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:09,134 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 90.2 MB. Free memory is still 51.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:09,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.51 ms. Allocated memory is still 90.2 MB. Free memory was 70.2 MB in the beginning and 67.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:09,137 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.28 ms. Allocated memory is still 90.2 MB. Free memory was 67.7 MB in the beginning and 66.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:09,137 INFO L168 Benchmark]: Boogie Preprocessor took 27.71 ms. Allocated memory is still 90.2 MB. Free memory was 66.2 MB in the beginning and 65.3 MB in the end (delta: 895.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:09,138 INFO L168 Benchmark]: RCFGBuilder took 495.00 ms. Allocated memory is still 90.2 MB. Free memory was 65.3 MB in the beginning and 54.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:09,138 INFO L168 Benchmark]: TraceAbstraction took 790.65 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 54.0 MB in the beginning and 75.6 MB in the end (delta: -21.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:09,139 INFO L168 Benchmark]: Witness Printer took 65.61 ms. Allocated memory is still 109.1 MB. Free memory was 75.6 MB in the beginning and 72.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:09,147 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 90.2 MB. Free memory is still 51.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 272.51 ms. Allocated memory is still 90.2 MB. Free memory was 70.2 MB in the beginning and 67.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.28 ms. Allocated memory is still 90.2 MB. Free memory was 67.7 MB in the beginning and 66.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.71 ms. Allocated memory is still 90.2 MB. Free memory was 66.2 MB in the beginning and 65.3 MB in the end (delta: 895.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 495.00 ms. Allocated memory is still 90.2 MB. Free memory was 65.3 MB in the beginning and 54.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 790.65 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 54.0 MB in the beginning and 75.6 MB in the end (delta: -21.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 65.61 ms. Allocated memory is still 109.1 MB. Free memory was 75.6 MB in the beginning and 72.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 <= x + 2147483648 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17 SDtfs, 4 SDslu, 8 SDs, 0 SdLazy, 22 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 15 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 216 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...