./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-007.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_58064010-ec41-409d-8edd-f6547262fddf/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58064010-ec41-409d-8edd-f6547262fddf/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_58064010-ec41-409d-8edd-f6547262fddf/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58064010-ec41-409d-8edd-f6547262fddf/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-007.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58064010-ec41-409d-8edd-f6547262fddf/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_58064010-ec41-409d-8edd-f6547262fddf/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 2b479d1eee982c1be6eab93c938f3e89559f8629 ................................................................................................................................................................................................................................................................................................................................................................ 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 02:27:03,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:27:03,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:27:03,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:27:03,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:27:03,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:27:03,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:27:03,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:27:03,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:27:03,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:27:03,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:27:03,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:27:03,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:27:03,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:27:03,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:27:03,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:27:03,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:27:03,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:27:03,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:27:03,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:27:03,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:27:03,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:27:03,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:27:03,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:27:03,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:27:03,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:27:03,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:27:03,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:27:03,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:27:03,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:27:03,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:27:03,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:27:03,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:27:03,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:27:03,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:27:03,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:27:03,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:27:03,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:27:03,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:27:03,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:27:03,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:27:03,240 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58064010-ec41-409d-8edd-f6547262fddf/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:27:03,287 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:27:03,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:27:03,290 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:27:03,290 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:27:03,290 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:27:03,291 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:27:03,291 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:27:03,291 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:27:03,297 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:27:03,298 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:27:03,299 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:27:03,299 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:27:03,299 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:27:03,299 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:27:03,300 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:27:03,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:27:03,301 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:27:03,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:27:03,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:27:03,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:27:03,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:27:03,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:27:03,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:27:03,302 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:27:03,303 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:27:03,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:27:03,303 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:27:03,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:27:03,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:27:03,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:27:03,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:03,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:27:03,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:27:03,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:27:03,306 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:27:03,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:27:03,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:27:03,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:27:03,307 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:27:03,308 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_58064010-ec41-409d-8edd-f6547262fddf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58064010-ec41-409d-8edd-f6547262fddf/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b479d1eee982c1be6eab93c938f3e89559f8629 [2021-10-11 02:27:03,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:27:03,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:27:03,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:27:03,607 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:27:03,608 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:27:03,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58064010-ec41-409d-8edd-f6547262fddf/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/xcsp/AllInterval-007.c [2021-10-11 02:27:03,668 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58064010-ec41-409d-8edd-f6547262fddf/bin/utaipan-WLngWcDbfI/data/68853e4c9/ee23ac7e8e9042cfb16137e937c57e92/FLAGe9f4ed14c [2021-10-11 02:27:04,153 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:27:04,154 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58064010-ec41-409d-8edd-f6547262fddf/sv-benchmarks/c/xcsp/AllInterval-007.c [2021-10-11 02:27:04,171 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58064010-ec41-409d-8edd-f6547262fddf/bin/utaipan-WLngWcDbfI/data/68853e4c9/ee23ac7e8e9042cfb16137e937c57e92/FLAGe9f4ed14c [2021-10-11 02:27:04,513 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58064010-ec41-409d-8edd-f6547262fddf/bin/utaipan-WLngWcDbfI/data/68853e4c9/ee23ac7e8e9042cfb16137e937c57e92 [2021-10-11 02:27:04,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:27:04,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:27:04,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:04,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:27:04,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:27:04,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:04" (1/1) ... [2021-10-11 02:27:04,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43532542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:04, skipping insertion in model container [2021-10-11 02:27:04,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:04" (1/1) ... [2021-10-11 02:27:04,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:27:04,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:27:04,767 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_58064010-ec41-409d-8edd-f6547262fddf/sv-benchmarks/c/xcsp/AllInterval-007.c[3690,3703] [2021-10-11 02:27:04,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:04,781 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:27:04,813 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_58064010-ec41-409d-8edd-f6547262fddf/sv-benchmarks/c/xcsp/AllInterval-007.c[3690,3703] [2021-10-11 02:27:04,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:04,846 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:27:04,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:04 WrapperNode [2021-10-11 02:27:04,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:04,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:04,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:27:04,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:27:04,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:04" (1/1) ... [2021-10-11 02:27:04,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:04" (1/1) ... [2021-10-11 02:27:04,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:04,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:27:04,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:27:04,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:27:04,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:04" (1/1) ... [2021-10-11 02:27:04,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:04" (1/1) ... [2021-10-11 02:27:04,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:04" (1/1) ... [2021-10-11 02:27:04,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:04" (1/1) ... [2021-10-11 02:27:04,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:04" (1/1) ... [2021-10-11 02:27:04,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:04" (1/1) ... [2021-10-11 02:27:04,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:04" (1/1) ... [2021-10-11 02:27:04,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:27:05,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:27:05,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:27:05,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:27:05,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:04" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58064010-ec41-409d-8edd-f6547262fddf/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 02:27:05,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:27:05,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:27:05,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:27:05,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:27:07,290 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:27:07,290 INFO L299 CfgBuilder]: Removed 140 assume(true) statements. [2021-10-11 02:27:07,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:07 BoogieIcfgContainer [2021-10-11 02:27:07,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:27:07,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:27:07,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:27:07,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:27:07,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:27:04" (1/3) ... [2021-10-11 02:27:07,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30dee86a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:07, skipping insertion in model container [2021-10-11 02:27:07,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:04" (2/3) ... [2021-10-11 02:27:07,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30dee86a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:07, skipping insertion in model container [2021-10-11 02:27:07,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:07" (3/3) ... [2021-10-11 02:27:07,304 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-007.c [2021-10-11 02:27:07,319 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:27:07,324 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:27:07,336 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:27:07,356 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:27:07,356 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:27:07,356 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:27:07,357 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:27:07,357 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:27:07,357 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:27:07,357 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:27:07,357 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:27:07,370 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2021-10-11 02:27:07,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-11 02:27:07,375 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:07,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2021-10-11 02:27:07,376 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:07,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:07,382 INFO L82 PathProgramCache]: Analyzing trace with hash 24669, now seen corresponding path program 1 times [2021-10-11 02:27:07,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:07,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535006444] [2021-10-11 02:27:07,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:27:08,633 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:27:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:27:09,419 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:27:09,462 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:27:09,463 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:27:09,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:27:09,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:27:09 BoogieIcfgContainer [2021-10-11 02:27:09,517 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:27:09,520 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:27:09,520 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:27:09,520 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:27:09,521 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:07" (3/4) ... [2021-10-11 02:27:09,523 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:27:09,609 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58064010-ec41-409d-8edd-f6547262fddf/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:27:09,610 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:27:09,612 INFO L168 Benchmark]: Toolchain (without parser) took 5094.92 ms. Allocated memory was 113.2 MB in the beginning and 186.6 MB in the end (delta: 73.4 MB). Free memory was 82.7 MB in the beginning and 99.5 MB in the end (delta: -16.8 MB). Peak memory consumption was 55.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:09,613 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 113.2 MB. Free memory is still 70.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:09,615 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.11 ms. Allocated memory was 113.2 MB in the beginning and 142.6 MB in the end (delta: 29.4 MB). Free memory was 82.4 MB in the beginning and 114.6 MB in the end (delta: -32.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:09,615 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.25 ms. Allocated memory is still 142.6 MB. Free memory was 114.6 MB in the beginning and 111.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:09,617 INFO L168 Benchmark]: Boogie Preprocessor took 58.17 ms. Allocated memory is still 142.6 MB. Free memory was 111.4 MB in the beginning and 109.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:09,618 INFO L168 Benchmark]: RCFGBuilder took 2275.93 ms. Allocated memory was 142.6 MB in the beginning and 186.6 MB in the end (delta: 44.0 MB). Free memory was 109.3 MB in the beginning and 148.3 MB in the end (delta: -39.1 MB). Peak memory consumption was 66.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:09,619 INFO L168 Benchmark]: TraceAbstraction took 2221.15 ms. Allocated memory is still 186.6 MB. Free memory was 147.3 MB in the beginning and 102.6 MB in the end (delta: 44.6 MB). Peak memory consumption was 98.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:09,620 INFO L168 Benchmark]: Witness Printer took 90.53 ms. Allocated memory is still 186.6 MB. Free memory was 102.6 MB in the beginning and 99.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:09,624 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 113.2 MB. Free memory is still 70.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 326.11 ms. Allocated memory was 113.2 MB in the beginning and 142.6 MB in the end (delta: 29.4 MB). Free memory was 82.4 MB in the beginning and 114.6 MB in the end (delta: -32.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 89.25 ms. Allocated memory is still 142.6 MB. Free memory was 114.6 MB in the beginning and 111.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.17 ms. Allocated memory is still 142.6 MB. Free memory was 111.4 MB in the beginning and 109.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2275.93 ms. Allocated memory was 142.6 MB in the beginning and 186.6 MB in the end (delta: 44.0 MB). Free memory was 109.3 MB in the beginning and 148.3 MB in the end (delta: -39.1 MB). Peak memory consumption was 66.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2221.15 ms. Allocated memory is still 186.6 MB. Free memory was 147.3 MB in the beginning and 102.6 MB in the end (delta: 44.6 MB). Peak memory consumption was 98.3 MB. Max. memory is 16.1 GB. * Witness Printer took 90.53 ms. Allocated memory is still 186.6 MB. Free memory was 102.6 MB in the beginning and 99.5 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: 135]: 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 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) [L116] int var_for_abs; [L117] var_for_abs = var0 - var1 [L118] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L118] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L120] var_for_abs = var1 - var2 [L121] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L121] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L123] var_for_abs = var2 - var3 [L124] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L124] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L126] var_for_abs = var3 - var4 [L127] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L127] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L129] var_for_abs = var4 - var5 [L130] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L130] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L132] var_for_abs = var5 - var6 [L133] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L133] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L135] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.1s, 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, 1.1s 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...