./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b766f2c8-1586-472e-89d5-26e32f63e76e/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b766f2c8-1586-472e-89d5-26e32f63e76e/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b766f2c8-1586-472e-89d5-26e32f63e76e/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b766f2c8-1586-472e-89d5-26e32f63e76e/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b766f2c8-1586-472e-89d5-26e32f63e76e/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b766f2c8-1586-472e-89d5-26e32f63e76e/bin/ukojak-LBtLqBUTdQ --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0ed66a9708aeb6d05a44fe8a4cf62f1870d2d459d6d935309468ed731262ea37 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:37:19,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:37:19,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:37:19,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:37:19,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:37:19,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:37:19,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:37:19,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:37:19,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:37:19,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:37:19,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:37:19,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:37:19,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:37:19,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:37:19,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:37:19,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:37:19,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:37:19,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:37:19,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:37:19,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:37:19,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:37:19,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:37:19,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:37:19,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:37:19,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:37:19,370 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:37:19,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:37:19,372 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:37:19,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:37:19,374 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:37:19,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:37:19,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:37:19,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:37:19,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:37:19,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:37:19,380 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:37:19,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:37:19,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:37:19,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:37:19,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:37:19,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:37:19,385 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b766f2c8-1586-472e-89d5-26e32f63e76e/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:37:19,414 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:37:19,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:37:19,415 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:37:19,415 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:37:19,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:37:19,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:37:19,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:37:19,418 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:37:19,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:37:19,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:37:19,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:37:19,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:37:19,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:37:19,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:37:19,426 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:37:19,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:37:19,426 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:37:19,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:37:19,427 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:37:19,427 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:37:19,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:37:19,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:37:19,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:37:19,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:37:19,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:37:19,429 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:37:19,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:37:19,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:37:19,430 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b766f2c8-1586-472e-89d5-26e32f63e76e/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b766f2c8-1586-472e-89d5-26e32f63e76e/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ed66a9708aeb6d05a44fe8a4cf62f1870d2d459d6d935309468ed731262ea37 [2021-11-23 01:37:19,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:37:19,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:37:19,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:37:19,759 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:37:19,760 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:37:19,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b766f2c8-1586-472e-89d5-26e32f63e76e/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.c [2021-11-23 01:37:19,843 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b766f2c8-1586-472e-89d5-26e32f63e76e/bin/ukojak-LBtLqBUTdQ/data/ddf11ce51/d1215864ab2141dc91c4569a513beb6c/FLAGaf68f5b52 [2021-11-23 01:37:20,326 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:37:20,329 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b766f2c8-1586-472e-89d5-26e32f63e76e/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.c [2021-11-23 01:37:20,343 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b766f2c8-1586-472e-89d5-26e32f63e76e/bin/ukojak-LBtLqBUTdQ/data/ddf11ce51/d1215864ab2141dc91c4569a513beb6c/FLAGaf68f5b52 [2021-11-23 01:37:20,686 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b766f2c8-1586-472e-89d5-26e32f63e76e/bin/ukojak-LBtLqBUTdQ/data/ddf11ce51/d1215864ab2141dc91c4569a513beb6c [2021-11-23 01:37:20,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:37:20,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:37:20,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:37:20,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:37:20,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:37:20,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:37:20" (1/1) ... [2021-11-23 01:37:20,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35ec0391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:20, skipping insertion in model container [2021-11-23 01:37:20,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:37:20" (1/1) ... [2021-11-23 01:37:20,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:37:20,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:37:20,935 WARN L230 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_b766f2c8-1586-472e-89d5-26e32f63e76e/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.c[537,550] [2021-11-23 01:37:20,957 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:37:20,967 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:37:20,985 WARN L230 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_b766f2c8-1586-472e-89d5-26e32f63e76e/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.c[537,550] [2021-11-23 01:37:21,005 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:37:21,022 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:37:21,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:21 WrapperNode [2021-11-23 01:37:21,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:37:21,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:37:21,025 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:37:21,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:37:21,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:21" (1/1) ... [2021-11-23 01:37:21,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:21" (1/1) ... [2021-11-23 01:37:21,071 INFO L137 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2021-11-23 01:37:21,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:37:21,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:37:21,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:37:21,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:37:21,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:21" (1/1) ... [2021-11-23 01:37:21,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:21" (1/1) ... [2021-11-23 01:37:21,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:21" (1/1) ... [2021-11-23 01:37:21,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:21" (1/1) ... [2021-11-23 01:37:21,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:21" (1/1) ... [2021-11-23 01:37:21,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:21" (1/1) ... [2021-11-23 01:37:21,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:21" (1/1) ... [2021-11-23 01:37:21,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:37:21,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:37:21,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:37:21,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:37:21,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:21" (1/1) ... [2021-11-23 01:37:21,128 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:37:21,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b766f2c8-1586-472e-89d5-26e32f63e76e/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:37:21,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b766f2c8-1586-472e-89d5-26e32f63e76e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:37:21,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b766f2c8-1586-472e-89d5-26e32f63e76e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:37:21,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:37:21,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:37:21,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:37:21,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:37:21,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:37:21,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:37:21,289 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:37:21,291 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:37:21,466 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:37:21,521 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:37:21,522 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:37:21,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:37:21 BoogieIcfgContainer [2021-11-23 01:37:21,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:37:21,531 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:37:21,532 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:37:21,543 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:37:21,543 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:37:21" (1/1) ... [2021-11-23 01:37:21,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:37:21,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:37:21,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2021-11-23 01:37:21,676 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2021-11-23 01:37:21,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:37:21,681 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:37:21,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:37:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:37:21,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:37:21,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:37:21,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2021-11-23 01:37:21,838 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-23 01:37:21,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:37:21,838 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:37:21,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:37:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:37:21,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:37:21,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:37:21,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2021-11-23 01:37:21,940 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2021-11-23 01:37:21,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:37:21,941 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:37:21,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:37:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:37:21,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:37:21,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:37:22,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:37:22,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:37:22,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2021-11-23 01:37:22,365 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2021-11-23 01:37:22,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:37:22,367 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:37:22,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:37:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:37:22,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:37:22,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:37:22,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:37:22,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:37:22,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 25 states and 36 transitions. [2021-11-23 01:37:22,850 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2021-11-23 01:37:22,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 01:37:22,851 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:37:22,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:37:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:37:22,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 01:37:22,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:37:22,953 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:37:23,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:37:23,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 22 states and 25 transitions. [2021-11-23 01:37:23,830 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-11-23 01:37:23,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 01:37:23,830 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:37:23,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:37:23,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:37:23,926 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:37:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:37:24,023 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2021-11-23 01:37:24,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:37:24 ImpRootNode [2021-11-23 01:37:24,058 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:37:24,059 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:37:24,059 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:37:24,060 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:37:24,060 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:37:21" (3/4) ... [2021-11-23 01:37:24,062 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 01:37:24,124 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b766f2c8-1586-472e-89d5-26e32f63e76e/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:37:24,124 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:37:24,126 INFO L158 Benchmark]: Toolchain (without parser) took 3434.18ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 59.0MB in the beginning and 54.0MB in the end (delta: 5.0MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2021-11-23 01:37:24,127 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 92.3MB. Free memory was 66.1MB in the beginning and 66.1MB in the end (delta: 21.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:37:24,128 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.37ms. Allocated memory is still 92.3MB. Free memory was 58.6MB in the beginning and 69.7MB in the end (delta: -11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:37:24,129 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.75ms. Allocated memory is still 92.3MB. Free memory was 69.7MB in the beginning and 68.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:37:24,130 INFO L158 Benchmark]: Boogie Preprocessor took 43.91ms. Allocated memory is still 92.3MB. Free memory was 68.1MB in the beginning and 67.2MB in the end (delta: 940.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:37:24,131 INFO L158 Benchmark]: RCFGBuilder took 413.27ms. Allocated memory is still 92.3MB. Free memory was 67.0MB in the beginning and 56.1MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 01:37:24,132 INFO L158 Benchmark]: CodeCheck took 2527.29ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 56.1MB in the beginning and 56.1MB in the end (delta: -24.1kB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2021-11-23 01:37:24,133 INFO L158 Benchmark]: Witness Printer took 65.26ms. Allocated memory is still 115.3MB. Free memory was 56.1MB in the beginning and 54.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:37:24,139 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 116 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 215 IncrementalHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 72 mSDtfsCounter, 215 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 432 GetRequests, 373 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 938 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 106 SizeOfPredicates, 5 NumberOfNonLiveVariables, 199 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 6/7 InterpolantCoveringCapability, 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: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L20] int counter = 0; [L22] int a, b; [L23] long long x, y, z; [L25] a = __VERIFIER_nondet_int() [L26] b = __VERIFIER_nondet_int() [L27] CALL assume_abort_if_not(b >= 1) [L10] COND FALSE !(!cond) [L27] RET assume_abort_if_not(b >= 1) [L29] x = a [L30] y = b [L31] z = 0 VAL [a=3, b=3, counter=0, x=3, y=3, z=0] [L33] EXPR counter++ VAL [a=3, b=3, counter=1, counter++=0, x=3, y=3, z=0] [L33] COND TRUE counter++<1 [L34] CALL __VERIFIER_assert(z + x * y == (long long) a * b) VAL [\old(cond)=1, counter=1] [L13] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L34] RET __VERIFIER_assert(z + x * y == (long long) a * b) VAL [a=3, b=3, counter=1, x=3, y=3, z=0] [L35] COND FALSE !(!(y != 0)) [L38] COND TRUE y % 2 == 1 [L39] z = z + x [L40] y = y - 1 [L42] x = 2 * x [L43] y = y / 2 VAL [a=3, b=3, counter=1, x=6, y=1, z=3] [L33] EXPR counter++ VAL [a=3, b=3, counter=2, counter++=1, x=6, y=1, z=3] [L33] COND FALSE !(counter++<1) [L45] CALL __VERIFIER_assert(z == (long long) a * b) VAL [\old(cond)=0, counter=2] [L13] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=2] [L15] reach_error() VAL [\old(cond)=0, cond=0, counter=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 92.3MB. Free memory was 66.1MB in the beginning and 66.1MB in the end (delta: 21.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.37ms. Allocated memory is still 92.3MB. Free memory was 58.6MB in the beginning and 69.7MB in the end (delta: -11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.75ms. Allocated memory is still 92.3MB. Free memory was 69.7MB in the beginning and 68.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.91ms. Allocated memory is still 92.3MB. Free memory was 68.1MB in the beginning and 67.2MB in the end (delta: 940.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 413.27ms. Allocated memory is still 92.3MB. Free memory was 67.0MB in the beginning and 56.1MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 2527.29ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 56.1MB in the beginning and 56.1MB in the end (delta: -24.1kB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Witness Printer took 65.26ms. Allocated memory is still 115.3MB. Free memory was 56.1MB in the beginning and 54.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 01:37:24,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b766f2c8-1586-472e-89d5-26e32f63e76e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE