./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound2.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_039217ba-0d8d-438a-b938-7708e2bc7548/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039217ba-0d8d-438a-b938-7708e2bc7548/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_039217ba-0d8d-438a-b938-7708e2bc7548/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039217ba-0d8d-438a-b938-7708e2bc7548/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039217ba-0d8d-438a-b938-7708e2bc7548/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_039217ba-0d8d-438a-b938-7708e2bc7548/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 02:31:24,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:31:24,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:31:24,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:31:24,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:31:24,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:31:24,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:31:24,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:31:24,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:31:24,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:31:24,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:31:24,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:31:24,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:31:24,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:31:24,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:31:24,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:31:24,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:31:24,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:31:24,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:31:24,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:31:24,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:31:24,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:31:24,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:31:24,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:31:24,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:31:24,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:31:24,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:31:24,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:31:24,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:31:24,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:31:24,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:31:24,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:31:24,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:31:24,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:31:24,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:31:24,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:31:24,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:31:24,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:31:24,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:31:24,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:31:24,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:31:24,250 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039217ba-0d8d-438a-b938-7708e2bc7548/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:31:24,296 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:31:24,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:31:24,298 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:31:24,299 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:31:24,299 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:31:24,299 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:31:24,300 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:31:24,300 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:31:24,300 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:31:24,300 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:31:24,302 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:31:24,302 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:31:24,302 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:31:24,303 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:31:24,303 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:31:24,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:31:24,304 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:31:24,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:31:24,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:31:24,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:31:24,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:31:24,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:31:24,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:31:24,306 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:31:24,306 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:31:24,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:31:24,307 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:31:24,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:31:24,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:31:24,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:31:24,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:31:24,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:31:24,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:31:24,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:31:24,311 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:31:24,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:31:24,312 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:31:24,312 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:31:24,312 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:31:24,313 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_039217ba-0d8d-438a-b938-7708e2bc7548/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039217ba-0d8d-438a-b938-7708e2bc7548/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33a8be774dbf0ffa25cd035ec8d49deb9466ec7f [2021-10-11 02:31:24,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:31:24,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:31:24,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:31:24,712 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:31:24,713 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:31:24,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039217ba-0d8d-438a-b938-7708e2bc7548/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound2.c [2021-10-11 02:31:24,790 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039217ba-0d8d-438a-b938-7708e2bc7548/bin/utaipan-WLngWcDbfI/data/0b4499224/de508732603e44d6921946e779d3d6e9/FLAG7eda2939b [2021-10-11 02:31:25,427 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:31:25,428 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039217ba-0d8d-438a-b938-7708e2bc7548/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound2.c [2021-10-11 02:31:25,441 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039217ba-0d8d-438a-b938-7708e2bc7548/bin/utaipan-WLngWcDbfI/data/0b4499224/de508732603e44d6921946e779d3d6e9/FLAG7eda2939b [2021-10-11 02:31:25,460 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039217ba-0d8d-438a-b938-7708e2bc7548/bin/utaipan-WLngWcDbfI/data/0b4499224/de508732603e44d6921946e779d3d6e9 [2021-10-11 02:31:25,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:31:25,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:31:25,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:25,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:31:25,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:31:25,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:25" (1/1) ... [2021-10-11 02:31:25,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15508b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:25, skipping insertion in model container [2021-10-11 02:31:25,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:25" (1/1) ... [2021-10-11 02:31:25,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:31:25,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:31:25,655 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_039217ba-0d8d-438a-b938-7708e2bc7548/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound2.c[573,586] [2021-10-11 02:31:25,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:25,678 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:31:25,692 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_039217ba-0d8d-438a-b938-7708e2bc7548/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound2.c[573,586] [2021-10-11 02:31:25,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:25,731 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:31:25,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:25 WrapperNode [2021-10-11 02:31:25,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:25,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:25,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:31:25,734 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:31:25,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:25" (1/1) ... [2021-10-11 02:31:25,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:25" (1/1) ... [2021-10-11 02:31:25,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:25,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:31:25,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:31:25,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:31:25,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:25" (1/1) ... [2021-10-11 02:31:25,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:25" (1/1) ... [2021-10-11 02:31:25,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:25" (1/1) ... [2021-10-11 02:31:25,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:25" (1/1) ... [2021-10-11 02:31:25,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:25" (1/1) ... [2021-10-11 02:31:25,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:25" (1/1) ... [2021-10-11 02:31:25,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:25" (1/1) ... [2021-10-11 02:31:25,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:31:25,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:31:25,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:31:25,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:31:25,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:25" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039217ba-0d8d-438a-b938-7708e2bc7548/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 02:31:25,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:31:25,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:31:25,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:31:25,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:31:26,291 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:31:26,297 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-10-11 02:31:26,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:26 BoogieIcfgContainer [2021-10-11 02:31:26,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:31:26,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:31:26,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:31:26,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:31:26,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:31:25" (1/3) ... [2021-10-11 02:31:26,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a62d4e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:26, skipping insertion in model container [2021-10-11 02:31:26,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:25" (2/3) ... [2021-10-11 02:31:26,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a62d4e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:26, skipping insertion in model container [2021-10-11 02:31:26,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:26" (3/3) ... [2021-10-11 02:31:26,318 INFO L111 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound2.c [2021-10-11 02:31:26,349 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:31:26,362 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:31:26,386 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:31:26,410 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:31:26,411 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:31:26,411 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:31:26,411 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:31:26,411 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:31:26,411 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:31:26,412 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:31:26,412 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:31:26,425 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2021-10-11 02:31:26,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:31:26,430 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:26,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:31:26,431 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:26,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:26,437 INFO L82 PathProgramCache]: Analyzing trace with hash 3152978, now seen corresponding path program 1 times [2021-10-11 02:31:26,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:31:26,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772522429] [2021-10-11 02:31:26,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:31:26,563 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:31:26,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1311640185] [2021-10-11 02:31:26,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039217ba-0d8d-438a-b938-7708e2bc7548/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 02:31:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:26,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-11 02:31:26,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:26,910 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 02:31:26,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:31:26,953 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 02:31:26,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772522429] [2021-10-11 02:31:26,954 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:31:26,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311640185] [2021-10-11 02:31:26,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:26,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-11 02:31:26,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442282075] [2021-10-11 02:31:26,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:31:26,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:31:26,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:31:26,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:31:26,981 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 6 states. [2021-10-11 02:31:27,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:27,160 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2021-10-11 02:31:27,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:31:27,162 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2021-10-11 02:31:27,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:27,171 INFO L225 Difference]: With dead ends: 30 [2021-10-11 02:31:27,172 INFO L226 Difference]: Without dead ends: 15 [2021-10-11 02:31:27,176 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 02:31:27,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-11 02:31:27,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 8. [2021-10-11 02:31:27,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-11 02:31:27,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-10-11 02:31:27,214 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2021-10-11 02:31:27,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:27,214 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-10-11 02:31:27,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:31:27,215 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-10-11 02:31:27,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:31:27,215 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:27,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:27,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-11 02:31:27,444 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:27,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:27,444 INFO L82 PathProgramCache]: Analyzing trace with hash -554007233, now seen corresponding path program 1 times [2021-10-11 02:31:27,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:31:27,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120665833] [2021-10-11 02:31:27,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:31:27,470 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:31:27,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1961017148] [2021-10-11 02:31:27,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039217ba-0d8d-438a-b938-7708e2bc7548/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 02:31:27,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:27,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-11 02:31:27,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:27,679 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 02:31:27,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:31:27,805 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 02:31:27,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120665833] [2021-10-11 02:31:27,807 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:31:27,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961017148] [2021-10-11 02:31:27,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:27,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-11 02:31:27,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087252857] [2021-10-11 02:31:27,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-10-11 02:31:27,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:31:27,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-11 02:31:27,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-10-11 02:31:27,818 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 11 states. [2021-10-11 02:31:27,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:27,934 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2021-10-11 02:31:27,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:31:27,937 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2021-10-11 02:31:27,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:27,938 INFO L225 Difference]: With dead ends: 9 [2021-10-11 02:31:27,938 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:31:27,941 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 02:31:27,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:31:27,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:31:27,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:31:27,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:31:27,943 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-10-11 02:31:27,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:27,943 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:31:27,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-10-11 02:31:27,944 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:31:27,944 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:31:28,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:31:28,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:31:28,337 INFO L262 CegarLoopResult]: For program point L35-2(lines 35 48) no Hoare annotation was computed. [2021-10-11 02:31:28,338 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2021-10-11 02:31:28,338 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 02:31:28,338 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:31:28,339 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2021-10-11 02:31:28,339 INFO L262 CegarLoopResult]: For program point L16(lines 16 19) no Hoare annotation was computed. [2021-10-11 02:31:28,340 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 02:31:28,340 INFO L262 CegarLoopResult]: For program point L16-3(lines 16 19) no Hoare annotation was computed. [2021-10-11 02:31:28,340 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 02:31:28,341 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:31:28,341 INFO L262 CegarLoopResult]: For program point L17(lines 17 18) no Hoare annotation was computed. [2021-10-11 02:31:28,341 INFO L262 CegarLoopResult]: For program point L17-1(lines 17 18) no Hoare annotation was computed. [2021-10-11 02:31:28,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:31:28 BoogieIcfgContainer [2021-10-11 02:31:28,363 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:31:28,368 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:31:28,368 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:31:28,368 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:31:28,369 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:26" (3/4) ... [2021-10-11 02:31:28,372 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:31:28,385 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-10-11 02:31:28,385 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-11 02:31:28,386 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:31:28,386 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:31:28,435 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_039217ba-0d8d-438a-b938-7708e2bc7548/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:31:28,435 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:31:28,437 INFO L168 Benchmark]: Toolchain (without parser) took 2969.98 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 69.6 MB in the beginning and 54.1 MB in the end (delta: 15.5 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:28,438 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 98.6 MB. Free memory is still 57.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:31:28,439 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.30 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 69.4 MB in the beginning and 97.5 MB in the end (delta: -28.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:28,440 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.30 ms. Allocated memory is still 121.6 MB. Free memory was 97.5 MB in the beginning and 96.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:31:28,440 INFO L168 Benchmark]: Boogie Preprocessor took 26.27 ms. Allocated memory is still 121.6 MB. Free memory was 96.2 MB in the beginning and 94.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:31:28,441 INFO L168 Benchmark]: RCFGBuilder took 500.30 ms. Allocated memory is still 121.6 MB. Free memory was 94.9 MB in the beginning and 74.8 MB in the end (delta: 20.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:28,442 INFO L168 Benchmark]: TraceAbstraction took 2061.43 ms. Allocated memory is still 121.6 MB. Free memory was 74.4 MB in the beginning and 56.8 MB in the end (delta: 17.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:28,442 INFO L168 Benchmark]: Witness Printer took 68.01 ms. Allocated memory is still 121.6 MB. Free memory was 56.8 MB in the beginning and 54.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:28,446 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 98.6 MB. Free memory is still 57.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 262.30 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 69.4 MB in the beginning and 97.5 MB in the end (delta: -28.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.30 ms. Allocated memory is still 121.6 MB. Free memory was 97.5 MB in the beginning and 96.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.27 ms. Allocated memory is still 121.6 MB. Free memory was 96.2 MB in the beginning and 94.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 500.30 ms. Allocated memory is still 121.6 MB. Free memory was 94.9 MB in the beginning and 74.8 MB in the end (delta: 20.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2061.43 ms. Allocated memory is still 121.6 MB. Free memory was 74.4 MB in the beginning and 56.8 MB in the end (delta: 17.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. * Witness Printer took 68.01 ms. Allocated memory is still 121.6 MB. Free memory was 56.8 MB in the beginning and 54.1 MB in the end (delta: 2.7 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: 1.7s, 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, 0.3s 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, 0.4s 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...