./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-008.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_df2a980f-b590-4d1b-bd90-bd06bf024101/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df2a980f-b590-4d1b-bd90-bd06bf024101/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_df2a980f-b590-4d1b-bd90-bd06bf024101/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df2a980f-b590-4d1b-bd90-bd06bf024101/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-008.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df2a980f-b590-4d1b-bd90-bd06bf024101/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_df2a980f-b590-4d1b-bd90-bd06bf024101/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 6a921bb6fab23d61a2f282033f6fd84a516f53d5 ......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:30:05,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:30:05,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:30:05,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:30:05,600 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:30:05,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:30:05,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:30:05,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:30:05,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:30:05,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:30:05,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:30:05,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:30:05,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:30:05,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:30:05,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:30:05,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:30:05,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:30:05,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:30:05,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:30:05,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:30:05,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:30:05,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:30:05,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:30:05,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:30:05,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:30:05,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:30:05,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:30:05,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:30:05,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:30:05,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:30:05,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:30:05,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:30:05,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:30:05,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:30:05,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:30:05,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:30:05,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:30:05,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:30:05,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:30:05,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:30:05,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:30:05,659 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df2a980f-b590-4d1b-bd90-bd06bf024101/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:30:05,707 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:30:05,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:30:05,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:30:05,709 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:30:05,709 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:30:05,710 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:30:05,710 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:30:05,710 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:30:05,716 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:30:05,717 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:30:05,718 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:30:05,718 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:30:05,719 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:30:05,719 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:30:05,719 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:30:05,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:30:05,720 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:30:05,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:30:05,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:30:05,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:30:05,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:30:05,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:30:05,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:30:05,722 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:30:05,722 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:30:05,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:30:05,722 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:30:05,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:30:05,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:30:05,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:30:05,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:30:05,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:30:05,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:30:05,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:30:05,724 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:30:05,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:30:05,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:30:05,725 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:30:05,725 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:30:05,725 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_df2a980f-b590-4d1b-bd90-bd06bf024101/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df2a980f-b590-4d1b-bd90-bd06bf024101/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a921bb6fab23d61a2f282033f6fd84a516f53d5 [2021-10-11 02:30:06,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:30:06,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:30:06,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:30:06,036 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:30:06,039 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:30:06,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df2a980f-b590-4d1b-bd90-bd06bf024101/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/xcsp/AllInterval-008.c [2021-10-11 02:30:06,108 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df2a980f-b590-4d1b-bd90-bd06bf024101/bin/utaipan-WLngWcDbfI/data/4156e7079/5ff661a7154649d8a5f70329cf76a16a/FLAGe2d2e0671 [2021-10-11 02:30:06,704 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:30:06,705 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df2a980f-b590-4d1b-bd90-bd06bf024101/sv-benchmarks/c/xcsp/AllInterval-008.c [2021-10-11 02:30:06,713 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df2a980f-b590-4d1b-bd90-bd06bf024101/bin/utaipan-WLngWcDbfI/data/4156e7079/5ff661a7154649d8a5f70329cf76a16a/FLAGe2d2e0671 [2021-10-11 02:30:07,093 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df2a980f-b590-4d1b-bd90-bd06bf024101/bin/utaipan-WLngWcDbfI/data/4156e7079/5ff661a7154649d8a5f70329cf76a16a [2021-10-11 02:30:07,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:30:07,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:30:07,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:30:07,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:30:07,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:30:07,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:30:07" (1/1) ... [2021-10-11 02:30:07,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78cbcfa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:07, skipping insertion in model container [2021-10-11 02:30:07,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:30:07" (1/1) ... [2021-10-11 02:30:07,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:30:07,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:30:07,365 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_df2a980f-b590-4d1b-bd90-bd06bf024101/sv-benchmarks/c/xcsp/AllInterval-008.c[4334,4347] [2021-10-11 02:30:07,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:30:07,389 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:30:07,471 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_df2a980f-b590-4d1b-bd90-bd06bf024101/sv-benchmarks/c/xcsp/AllInterval-008.c[4334,4347] [2021-10-11 02:30:07,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:30:07,497 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:30:07,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:07 WrapperNode [2021-10-11 02:30:07,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:30:07,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:30:07,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:30:07,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:30:07,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:07" (1/1) ... [2021-10-11 02:30:07,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:07" (1/1) ... [2021-10-11 02:30:07,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:30:07,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:30:07,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:30:07,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:30:07,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:07" (1/1) ... [2021-10-11 02:30:07,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:07" (1/1) ... [2021-10-11 02:30:07,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:07" (1/1) ... [2021-10-11 02:30:07,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:07" (1/1) ... [2021-10-11 02:30:07,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:07" (1/1) ... [2021-10-11 02:30:07,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:07" (1/1) ... [2021-10-11 02:30:07,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:07" (1/1) ... [2021-10-11 02:30:07,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:30:07,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:30:07,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:30:07,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:30:07,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:07" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df2a980f-b590-4d1b-bd90-bd06bf024101/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 02:30:07,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:30:07,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:30:07,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:30:07,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:30:11,569 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:30:11,569 INFO L299 CfgBuilder]: Removed 176 assume(true) statements. [2021-10-11 02:30:11,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:11 BoogieIcfgContainer [2021-10-11 02:30:11,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:30:11,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:30:11,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:30:11,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:30:11,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:30:07" (1/3) ... [2021-10-11 02:30:11,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557199d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:30:11, skipping insertion in model container [2021-10-11 02:30:11,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:07" (2/3) ... [2021-10-11 02:30:11,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557199d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:30:11, skipping insertion in model container [2021-10-11 02:30:11,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:11" (3/3) ... [2021-10-11 02:30:11,580 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-008.c [2021-10-11 02:30:11,591 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:30:11,595 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:30:11,606 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:30:11,628 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:30:11,628 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:30:11,628 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:30:11,628 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:30:11,628 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:30:11,629 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:30:11,629 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:30:11,629 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:30:11,639 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2021-10-11 02:30:11,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-11 02:30:11,644 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:11,644 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2021-10-11 02:30:11,645 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:30:11,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:11,649 INFO L82 PathProgramCache]: Analyzing trace with hash 30692, now seen corresponding path program 1 times [2021-10-11 02:30:11,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:30:11,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629722985] [2021-10-11 02:30:11,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:30:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:30:15,291 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:30:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:30:17,416 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:30:17,463 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:30:17,464 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:30:17,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:30:17,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:30:17 BoogieIcfgContainer [2021-10-11 02:30:17,520 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:30:17,522 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:30:17,523 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:30:17,523 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:30:17,523 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:11" (3/4) ... [2021-10-11 02:30:17,527 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:30:17,624 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df2a980f-b590-4d1b-bd90-bd06bf024101/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:30:17,625 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:30:17,627 INFO L168 Benchmark]: Toolchain (without parser) took 10529.09 ms. Allocated memory was 140.5 MB in the beginning and 369.1 MB in the end (delta: 228.6 MB). Free memory was 112.3 MB in the beginning and 304.7 MB in the end (delta: -192.4 MB). Peak memory consumption was 36.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:17,628 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 96.5 MB. Free memory is still 52.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:30:17,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 400.59 ms. Allocated memory is still 140.5 MB. Free memory was 112.0 MB in the beginning and 113.1 MB in the end (delta: -1.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:17,629 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.40 ms. Allocated memory is still 140.5 MB. Free memory was 113.1 MB in the beginning and 109.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:17,630 INFO L168 Benchmark]: Boogie Preprocessor took 90.15 ms. Allocated memory is still 140.5 MB. Free memory was 109.0 MB in the beginning and 106.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:17,630 INFO L168 Benchmark]: RCFGBuilder took 3901.04 ms. Allocated memory was 140.5 MB in the beginning and 184.5 MB in the end (delta: 44.0 MB). Free memory was 106.5 MB in the beginning and 145.9 MB in the end (delta: -39.4 MB). Peak memory consumption was 106.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:17,631 INFO L168 Benchmark]: TraceAbstraction took 5947.94 ms. Allocated memory was 184.5 MB in the beginning and 369.1 MB in the end (delta: 184.5 MB). Free memory was 144.8 MB in the beginning and 307.8 MB in the end (delta: -163.0 MB). Peak memory consumption was 173.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:17,632 INFO L168 Benchmark]: Witness Printer took 102.46 ms. Allocated memory is still 369.1 MB. Free memory was 307.8 MB in the beginning and 304.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:17,635 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 96.5 MB. Free memory is still 52.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 400.59 ms. Allocated memory is still 140.5 MB. Free memory was 112.0 MB in the beginning and 113.1 MB in the end (delta: -1.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.40 ms. Allocated memory is still 140.5 MB. Free memory was 113.1 MB in the beginning and 109.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 90.15 ms. Allocated memory is still 140.5 MB. Free memory was 109.0 MB in the beginning and 106.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3901.04 ms. Allocated memory was 140.5 MB in the beginning and 184.5 MB in the end (delta: 44.0 MB). Free memory was 106.5 MB in the beginning and 145.9 MB in the end (delta: -39.4 MB). Peak memory consumption was 106.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5947.94 ms. Allocated memory was 184.5 MB in the beginning and 369.1 MB in the end (delta: 184.5 MB). Free memory was 144.8 MB in the beginning and 307.8 MB in the end (delta: -163.0 MB). Peak memory consumption was 173.4 MB. Max. memory is 16.1 GB. * Witness Printer took 102.46 ms. Allocated memory is still 369.1 MB. Free memory was 307.8 MB in the beginning and 304.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 159]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L24] int cond0; [L25] int dummy = 0; [L26] int N; [L27] int var0; [L28] var0 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L31] int var1; [L32] var1 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L35] int var2; [L36] var2 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L39] int var3; [L40] var3 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L43] int var4; [L44] var4 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L47] int var5; [L48] var5 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L51] int var6; [L52] var6 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L55] int var7; [L56] var7 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L59] int var8; [L60] var8 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L63] int var9; [L64] var9 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L67] int var10; [L68] var10 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L71] int var11; [L72] var11 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L75] int var12; [L76] var12 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L79] int var13; [L80] var13 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L83] int var14; [L84] var14 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L87] int myvar0 = 1; [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L137] int var_for_abs; [L138] var_for_abs = var0 - var1 [L139] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L139] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L141] var_for_abs = var1 - var2 [L142] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L142] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L144] var_for_abs = var2 - var3 [L145] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L145] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L147] var_for_abs = var3 - var4 [L148] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L148] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L150] var_for_abs = var4 - var5 [L151] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L151] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L153] var_for_abs = var5 - var6 [L154] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L154] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L156] var_for_abs = var6 - var7 [L157] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L157] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L159] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 incorrect! Received shutdown request...