./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6709702e-465c-41f5-8037-c7cb2daa6960/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6709702e-465c-41f5-8037-c7cb2daa6960/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6709702e-465c-41f5-8037-c7cb2daa6960/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6709702e-465c-41f5-8037-c7cb2daa6960/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6709702e-465c-41f5-8037-c7cb2daa6960/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6709702e-465c-41f5-8037-c7cb2daa6960/bin/utaipan-WLngWcDbfI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 33a8be774dbf0ffa25cd035ec8d49deb9466ec7f ........................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:28:43,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:28:43,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:28:43,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:28:43,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:28:43,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:28:43,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:28:43,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:28:43,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:28:43,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:28:43,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:28:43,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:28:43,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:28:43,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:28:43,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:28:43,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:28:43,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:28:43,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:28:43,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:28:43,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:28:43,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:28:43,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:28:43,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:28:43,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:28:43,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:28:43,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:28:43,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:28:43,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:28:43,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:28:43,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:28:43,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:28:43,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:28:43,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:28:43,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:28:43,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:28:43,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:28:43,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:28:43,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:28:43,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:28:43,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:28:43,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:28:43,505 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6709702e-465c-41f5-8037-c7cb2daa6960/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:28:43,555 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:28:43,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:28:43,557 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:28:43,557 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:28:43,558 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:28:43,558 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:28:43,558 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:28:43,558 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:28:43,559 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:28:43,559 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:28:43,560 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:28:43,561 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:28:43,561 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:28:43,561 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:28:43,561 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:28:43,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:28:43,562 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:28:43,563 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:28:43,563 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:28:43,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:28:43,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:28:43,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:28:43,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:28:43,564 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:28:43,565 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:28:43,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:28:43,565 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:28:43,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:28:43,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:28:43,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:28:43,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:28:43,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:28:43,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:28:43,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:28:43,569 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:28:43,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:28:43,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:28:43,570 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:28:43,570 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:28:43,570 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_worker_vcloud-master_on_vcloud-master/run_dir_6709702e-465c-41f5-8037-c7cb2daa6960/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6709702e-465c-41f5-8037-c7cb2daa6960/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33a8be774dbf0ffa25cd035ec8d49deb9466ec7f [2021-10-11 02:28:43,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:28:43,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:28:43,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:28:43,866 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:28:43,867 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:28:43,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6709702e-465c-41f5-8037-c7cb2daa6960/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound5.c [2021-10-11 02:28:43,939 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6709702e-465c-41f5-8037-c7cb2daa6960/bin/utaipan-WLngWcDbfI/data/6504bd3d6/df2de0eb26794ff285f8e395234b2413/FLAG40945aa4b [2021-10-11 02:28:44,485 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:28:44,487 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6709702e-465c-41f5-8037-c7cb2daa6960/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound5.c [2021-10-11 02:28:44,503 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6709702e-465c-41f5-8037-c7cb2daa6960/bin/utaipan-WLngWcDbfI/data/6504bd3d6/df2de0eb26794ff285f8e395234b2413/FLAG40945aa4b [2021-10-11 02:28:44,846 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6709702e-465c-41f5-8037-c7cb2daa6960/bin/utaipan-WLngWcDbfI/data/6504bd3d6/df2de0eb26794ff285f8e395234b2413 [2021-10-11 02:28:44,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:28:44,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:28:44,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:28:44,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:28:44,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:28:44,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:44" (1/1) ... [2021-10-11 02:28:44,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a41f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:44, skipping insertion in model container [2021-10-11 02:28:44,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:44" (1/1) ... [2021-10-11 02:28:44,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:28:44,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:28:45,121 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6709702e-465c-41f5-8037-c7cb2daa6960/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound5.c[573,586] [2021-10-11 02:28:45,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:28:45,143 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:28:45,158 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6709702e-465c-41f5-8037-c7cb2daa6960/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound5.c[573,586] [2021-10-11 02:28:45,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:28:45,178 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:28:45,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45 WrapperNode [2021-10-11 02:28:45,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:28:45,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:28:45,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:28:45,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:28:45,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (1/1) ... [2021-10-11 02:28:45,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (1/1) ... [2021-10-11 02:28:45,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:28:45,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:28:45,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:28:45,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:28:45,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (1/1) ... [2021-10-11 02:28:45,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (1/1) ... [2021-10-11 02:28:45,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (1/1) ... [2021-10-11 02:28:45,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (1/1) ... [2021-10-11 02:28:45,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (1/1) ... [2021-10-11 02:28:45,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (1/1) ... [2021-10-11 02:28:45,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (1/1) ... [2021-10-11 02:28:45,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:28:45,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:28:45,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:28:45,233 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:28:45,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6709702e-465c-41f5-8037-c7cb2daa6960/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:28:45,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:28:45,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:28:45,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:28:45,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:28:45,661 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:28:45,662 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-10-11 02:28:45,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:45 BoogieIcfgContainer [2021-10-11 02:28:45,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:28:45,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:28:45,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:28:45,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:28:45,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:28:44" (1/3) ... [2021-10-11 02:28:45,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@760c465a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:45, skipping insertion in model container [2021-10-11 02:28:45,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (2/3) ... [2021-10-11 02:28:45,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@760c465a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:45, skipping insertion in model container [2021-10-11 02:28:45,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:45" (3/3) ... [2021-10-11 02:28:45,689 INFO L111 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound5.c [2021-10-11 02:28:45,702 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:28:45,709 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:28:45,736 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:28:45,770 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:28:45,771 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:28:45,771 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:28:45,771 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:28:45,771 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:28:45,771 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:28:45,772 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:28:45,772 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:28:45,784 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2021-10-11 02:28:45,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:28:45,788 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:45,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:28:45,789 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:45,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:45,800 INFO L82 PathProgramCache]: Analyzing trace with hash 3152978, now seen corresponding path program 1 times [2021-10-11 02:28:45,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:45,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947562142] [2021-10-11 02:28:45,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:45,910 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:28:45,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1059551359] [2021-10-11 02:28:45,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6709702e-465c-41f5-8037-c7cb2daa6960/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:28:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:45,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-11 02:28:45,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:28:46,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:46,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:28:46,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:46,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947562142] [2021-10-11 02:28:46,177 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:28:46,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059551359] [2021-10-11 02:28:46,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:46,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-11 02:28:46,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735598074] [2021-10-11 02:28:46,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:28:46,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:46,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:28:46,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:28:46,211 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 6 states. [2021-10-11 02:28:46,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:46,364 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2021-10-11 02:28:46,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:28:46,366 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2021-10-11 02:28:46,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:46,375 INFO L225 Difference]: With dead ends: 30 [2021-10-11 02:28:46,375 INFO L226 Difference]: Without dead ends: 15 [2021-10-11 02:28:46,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:28:46,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-11 02:28:46,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 8. [2021-10-11 02:28:46,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-11 02:28:46,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-10-11 02:28:46,432 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2021-10-11 02:28:46,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:46,432 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-10-11 02:28:46,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:28:46,432 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-10-11 02:28:46,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:28:46,433 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:46,433 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:46,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-11 02:28:46,648 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:46,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:46,649 INFO L82 PathProgramCache]: Analyzing trace with hash -554007233, now seen corresponding path program 1 times [2021-10-11 02:28:46,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:46,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348260264] [2021-10-11 02:28:46,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:46,680 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:28:46,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1841085022] [2021-10-11 02:28:46,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6709702e-465c-41f5-8037-c7cb2daa6960/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:28:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:46,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-11 02:28:46,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:28:46,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:46,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:28:46,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:46,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348260264] [2021-10-11 02:28:46,934 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:28:46,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841085022] [2021-10-11 02:28:46,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:46,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-11 02:28:46,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191087856] [2021-10-11 02:28:46,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-10-11 02:28:46,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:46,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-11 02:28:46,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-10-11 02:28:46,943 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 11 states. [2021-10-11 02:28:47,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:47,047 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2021-10-11 02:28:47,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:28:47,050 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2021-10-11 02:28:47,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:47,051 INFO L225 Difference]: With dead ends: 9 [2021-10-11 02:28:47,051 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:28:47,054 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-10-11 02:28:47,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:28:47,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:28:47,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:28:47,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:28:47,056 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-10-11 02:28:47,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:47,056 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:28:47,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-10-11 02:28:47,057 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:28:47,057 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:28:47,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:28:47,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:28:47,406 INFO L262 CegarLoopResult]: For program point L35-2(lines 35 48) no Hoare annotation was computed. [2021-10-11 02:28:47,406 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2021-10-11 02:28:47,407 INFO L258 CegarLoopResult]: At program point L40-2(lines 35 48) the Hoare annotation is: (and (or (and (<= ULTIMATE.start_main_~x2~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x2~0 2147483648)) (= ULTIMATE.start_main_~x1~0 ULTIMATE.start_main_~y3~0) (= ULTIMATE.start_main_~y2~0 0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (not (= ULTIMATE.start_main_~x2~0 0)) (= ULTIMATE.start_main_~x1~0 (+ ULTIMATE.start_main_~y2~0 ULTIMATE.start_main_~y3~0 (* ULTIMATE.start_main_~y1~0 ULTIMATE.start_main_~x2~0)))) [2021-10-11 02:28:47,407 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:28:47,407 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2021-10-11 02:28:47,407 INFO L262 CegarLoopResult]: For program point L16(lines 16 19) no Hoare annotation was computed. [2021-10-11 02:28:47,408 INFO L258 CegarLoopResult]: At program point L16-2(line 38) the Hoare annotation is: (and (not (= ULTIMATE.start_main_~x2~0 0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~x1~0 (+ ULTIMATE.start_main_~y2~0 ULTIMATE.start_main_~y3~0 (* ULTIMATE.start_main_~y1~0 ULTIMATE.start_main_~x2~0)))) [2021-10-11 02:28:47,408 INFO L262 CegarLoopResult]: For program point L16-3(lines 16 19) no Hoare annotation was computed. [2021-10-11 02:28:47,408 INFO L258 CegarLoopResult]: At program point L16-5(lines 15 21) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= ULTIMATE.start_main_~x1~0 (+ ULTIMATE.start_main_~y2~0 ULTIMATE.start_main_~y3~0 (* ULTIMATE.start_main_~y1~0 ULTIMATE.start_main_~x2~0)))) [2021-10-11 02:28:47,408 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:28:47,409 INFO L262 CegarLoopResult]: For program point L17(lines 17 18) no Hoare annotation was computed. [2021-10-11 02:28:47,409 INFO L262 CegarLoopResult]: For program point L17-1(lines 17 18) no Hoare annotation was computed. [2021-10-11 02:28:47,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:28:47 BoogieIcfgContainer [2021-10-11 02:28:47,427 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:28:47,428 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:28:47,428 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:28:47,429 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:28:47,429 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:45" (3/4) ... [2021-10-11 02:28:47,434 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:28:47,447 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-10-11 02:28:47,448 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-11 02:28:47,448 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:28:47,448 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:28:47,509 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6709702e-465c-41f5-8037-c7cb2daa6960/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:28:47,509 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:28:47,511 INFO L168 Benchmark]: Toolchain (without parser) took 2656.56 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 65.2 MB in the beginning and 40.1 MB in the end (delta: 25.1 MB). Peak memory consumption was 45.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:47,516 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory was 52.9 MB in the beginning and 52.8 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:47,519 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.89 ms. Allocated memory is still 96.5 MB. Free memory was 65.0 MB in the beginning and 72.1 MB in the end (delta: -7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:47,520 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.18 ms. Allocated memory is still 96.5 MB. Free memory was 72.1 MB in the beginning and 70.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:47,521 INFO L168 Benchmark]: Boogie Preprocessor took 19.97 ms. Allocated memory is still 96.5 MB. Free memory was 70.7 MB in the beginning and 69.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:47,521 INFO L168 Benchmark]: RCFGBuilder took 432.02 ms. Allocated memory is still 96.5 MB. Free memory was 69.6 MB in the beginning and 49.4 MB in the end (delta: 20.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:47,522 INFO L168 Benchmark]: TraceAbstraction took 1761.63 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 49.0 MB in the beginning and 42.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:47,522 INFO L168 Benchmark]: Witness Printer took 81.15 ms. Allocated memory is still 117.4 MB. Free memory was 42.2 MB in the beginning and 40.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:47,528 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory was 52.9 MB in the beginning and 52.8 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 322.89 ms. Allocated memory is still 96.5 MB. Free memory was 65.0 MB in the beginning and 72.1 MB in the end (delta: -7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.18 ms. Allocated memory is still 96.5 MB. Free memory was 72.1 MB in the beginning and 70.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.97 ms. Allocated memory is still 96.5 MB. Free memory was 70.7 MB in the beginning and 69.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 432.02 ms. Allocated memory is still 96.5 MB. Free memory was 69.6 MB in the beginning and 49.4 MB in the end (delta: 20.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1761.63 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 49.0 MB in the beginning and 42.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. * Witness Printer took 81.15 ms. Allocated memory is still 117.4 MB. Free memory was 42.2 MB in the beginning and 40.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: !(0 == cond) && x1 == y2 + y3 + y1 * x2 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((x2 <= 2147483647 && 0 <= x2 + 2147483648) && x1 == y3) && y2 == 0) || 1 == cond) && !(x2 == 0)) && x1 == y2 + y3 + y1 * x2 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (!(x2 == 0) && 1 == cond) && x1 == y2 + y3 + y1 * x2 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 34 SDslu, 9 SDs, 0 SdLazy, 31 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 2 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 61 HoareAnnotationTreeSize, 3 FomulaSimplifications, 90 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 43 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 741 SizeOfPredicates, 22 NumberOfNonLiveVariables, 115 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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...