./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611b791b-e1a8-4d72-952b-151ba7f24cab/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611b791b-e1a8-4d72-952b-151ba7f24cab/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611b791b-e1a8-4d72-952b-151ba7f24cab/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611b791b-e1a8-4d72-952b-151ba7f24cab/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611b791b-e1a8-4d72-952b-151ba7f24cab/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611b791b-e1a8-4d72-952b-151ba7f24cab/bin/ukojak-92XMlrwhuB --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 6568b5930df9b96ff5e807ba48758caa6128d98ba24e8c1d6b9a86c6290462f1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:58:10,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:58:10,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:58:10,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:58:10,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:58:10,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:58:10,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:58:10,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:58:10,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:58:10,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:58:10,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:58:10,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:58:10,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:58:10,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:58:10,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:58:10,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:58:10,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:58:10,690 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:58:10,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:58:10,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:58:10,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:58:10,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:58:10,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:58:10,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:58:10,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:58:10,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:58:10,726 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:58:10,727 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:58:10,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:58:10,729 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:58:10,730 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:58:10,731 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:58:10,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:58:10,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:58:10,734 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:58:10,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:58:10,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:58:10,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:58:10,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:58:10,738 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:58:10,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:58:10,745 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611b791b-e1a8-4d72-952b-151ba7f24cab/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:58:10,797 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:58:10,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:58:10,799 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:58:10,799 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:58:10,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:58:10,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:58:10,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:58:10,800 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:58:10,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:58:10,801 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:58:10,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:58:10,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:58:10,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:58:10,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:58:10,802 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:58:10,802 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:58:10,802 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:58:10,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:58:10,802 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:58:10,803 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:58:10,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:58:10,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:58:10,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:58:10,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:58:10,804 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:58:10,804 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:58:10,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:58:10,804 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:58:10,805 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_611b791b-e1a8-4d72-952b-151ba7f24cab/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611b791b-e1a8-4d72-952b-151ba7f24cab/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6568b5930df9b96ff5e807ba48758caa6128d98ba24e8c1d6b9a86c6290462f1 [2022-10-17 16:58:11,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:58:11,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:58:11,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:58:11,109 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:58:11,110 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:58:11,112 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611b791b-e1a8-4d72-952b-151ba7f24cab/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound1.c [2022-10-17 16:58:11,187 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611b791b-e1a8-4d72-952b-151ba7f24cab/bin/ukojak-92XMlrwhuB/data/0f8d93904/c17ab9c685ab4bf8b5873190349d7426/FLAG9b3ebd3bb [2022-10-17 16:58:11,659 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:58:11,660 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611b791b-e1a8-4d72-952b-151ba7f24cab/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound1.c [2022-10-17 16:58:11,668 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611b791b-e1a8-4d72-952b-151ba7f24cab/bin/ukojak-92XMlrwhuB/data/0f8d93904/c17ab9c685ab4bf8b5873190349d7426/FLAG9b3ebd3bb [2022-10-17 16:58:12,025 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611b791b-e1a8-4d72-952b-151ba7f24cab/bin/ukojak-92XMlrwhuB/data/0f8d93904/c17ab9c685ab4bf8b5873190349d7426 [2022-10-17 16:58:12,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:58:12,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:58:12,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:58:12,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:58:12,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:58:12,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:58:12" (1/1) ... [2022-10-17 16:58:12,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77ab4f80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:12, skipping insertion in model container [2022-10-17 16:58:12,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:58:12" (1/1) ... [2022-10-17 16:58:12,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:58:12,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:58:12,230 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_611b791b-e1a8-4d72-952b-151ba7f24cab/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound1.c[524,537] [2022-10-17 16:58:12,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:58:12,258 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:58:12,269 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_611b791b-e1a8-4d72-952b-151ba7f24cab/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound1.c[524,537] [2022-10-17 16:58:12,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:58:12,290 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:58:12,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:12 WrapperNode [2022-10-17 16:58:12,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:58:12,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:58:12,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:58:12,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:58:12,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:12" (1/1) ... [2022-10-17 16:58:12,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:12" (1/1) ... [2022-10-17 16:58:12,328 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2022-10-17 16:58:12,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:58:12,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:58:12,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:58:12,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:58:12,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:12" (1/1) ... [2022-10-17 16:58:12,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:12" (1/1) ... [2022-10-17 16:58:12,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:12" (1/1) ... [2022-10-17 16:58:12,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:12" (1/1) ... [2022-10-17 16:58:12,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:12" (1/1) ... [2022-10-17 16:58:12,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:12" (1/1) ... [2022-10-17 16:58:12,350 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:12" (1/1) ... [2022-10-17 16:58:12,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:12" (1/1) ... [2022-10-17 16:58:12,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:58:12,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:58:12,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:58:12,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:58:12,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:12" (1/1) ... [2022-10-17 16:58:12,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:58:12,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611b791b-e1a8-4d72-952b-151ba7f24cab/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:58:12,387 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611b791b-e1a8-4d72-952b-151ba7f24cab/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:58:12,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611b791b-e1a8-4d72-952b-151ba7f24cab/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:58:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:58:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 16:58:12,431 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 16:58:12,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:58:12,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:58:12,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:58:12,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:58:12,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:58:12,510 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:58:12,513 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:58:12,733 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:58:12,792 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:58:12,795 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:58:12,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:58:12 BoogieIcfgContainer [2022-10-17 16:58:12,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:58:12,815 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:58:12,816 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:58:12,838 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:58:12,838 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:58:12" (1/1) ... [2022-10-17 16:58:12,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:58:12,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:12,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2022-10-17 16:58:12,915 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2022-10-17 16:58:12,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:58:12,920 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:12,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:13,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 16:58:13,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:58:13,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:58:13,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:13,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2022-10-17 16:58:13,108 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-10-17 16:58:13,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 16:58:13,109 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:13,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:13,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 16:58:13,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:58:13,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:58:13,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:13,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2022-10-17 16:58:13,302 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-10-17 16:58:13,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 16:58:13,303 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:13,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:13,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 16:58:13,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:58:13,585 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:58:14,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:14,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 33 transitions. [2022-10-17 16:58:14,509 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-10-17 16:58:14,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 16:58:14,511 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:14,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:14,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-17 16:58:14,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:58:15,199 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:58:21,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:21,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2022-10-17 16:58:21,621 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2022-10-17 16:58:21,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-17 16:58:21,622 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:21,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:21,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 16:58:21,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:58:21,791 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:58:32,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-10-17 16:58:33,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:33,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 30 states and 36 transitions. [2022-10-17 16:58:33,355 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2022-10-17 16:58:33,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-17 16:58:33,356 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:33,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:58:33,527 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:58:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:58:33,710 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2022-10-17 16:58:33,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:58:33 ImpRootNode [2022-10-17 16:58:33,758 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:58:33,759 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:58:33,759 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:58:33,759 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:58:33,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:58:12" (3/4) ... [2022-10-17 16:58:33,762 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:58:33,824 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611b791b-e1a8-4d72-952b-151ba7f24cab/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:58:33,841 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:58:33,842 INFO L158 Benchmark]: Toolchain (without parser) took 21813.24ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 51.8MB in the beginning and 39.6MB in the end (delta: 12.1MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2022-10-17 16:58:33,843 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 90.2MB. Free memory was 68.4MB in the beginning and 68.3MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:58:33,844 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.29ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 51.6MB in the beginning and 84.2MB in the end (delta: -32.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:58:33,845 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.46ms. Allocated memory is still 109.1MB. Free memory was 84.2MB in the beginning and 82.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:58:33,846 INFO L158 Benchmark]: Boogie Preprocessor took 24.04ms. Allocated memory is still 109.1MB. Free memory was 82.8MB in the beginning and 81.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:58:33,847 INFO L158 Benchmark]: RCFGBuilder took 460.77ms. Allocated memory is still 109.1MB. Free memory was 81.6MB in the beginning and 69.1MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 16:58:33,848 INFO L158 Benchmark]: CodeCheck took 20943.06ms. Allocated memory is still 109.1MB. Free memory was 69.1MB in the beginning and 41.7MB in the end (delta: 27.4MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2022-10-17 16:58:33,849 INFO L158 Benchmark]: Witness Printer took 82.09ms. Allocated memory is still 109.1MB. Free memory was 41.7MB in the beginning and 39.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:58:33,862 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 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.9s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 228 SdHoareTripleChecker+Valid, 5.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 163 SdHoareTripleChecker+Invalid, 5.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 116 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 307 IncrementalHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 116 mSolverCounterUnsat, 139 mSDtfsCounter, 307 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 685 GetRequests, 623 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 998 ImplicationChecksByTransitivity, 16.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 267 SizeOfPredicates, 6 NumberOfNonLiveVariables, 358 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 15/17 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: 14]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int counter = 0; [L21] int A, R; [L22] long long u, v, r; [L23] A = __VERIFIER_nondet_int() [L24] R = __VERIFIER_nondet_int() [L26] CALL assume_abort_if_not(((long long) R - 1) * ((long long) R - 1) < A) VAL [\old(cond)=1, counter=0] [L9] COND FALSE !(!cond) [L26] RET assume_abort_if_not(((long long) R - 1) * ((long long) R - 1) < A) VAL [A=5, counter=0, R=2] [L28] CALL assume_abort_if_not(A % 2 == 1) VAL [\old(cond)=1, counter=0] [L9] COND FALSE !(!cond) [L28] RET assume_abort_if_not(A % 2 == 1) VAL [A=5, counter=0, R=2] [L30] u = ((long long) 2 * R) + 1 [L31] v = 1 [L32] r = ((long long) R * R) - A VAL [A=5, counter=0, R=2, r=-1, u=5, v=1] [L34] EXPR counter++ VAL [A=5, counter=1, counter++=0, r=-1, R=2, u=5, v=1] [L34] COND TRUE counter++<1 [L35] CALL __VERIFIER_assert(4*(A+r) == u*u - v*v - 2*u + 2*v) VAL [\old(cond)=1, counter=1] [L12] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L35] RET __VERIFIER_assert(4*(A+r) == u*u - v*v - 2*u + 2*v) VAL [A=5, counter=1, R=2, r=-1, u=5, v=1] [L36] COND FALSE !(!(r != 0)) [L38] COND FALSE !(r > 0) [L42] r = r + u [L43] u = u + 2 VAL [A=5, counter=1, R=2, r=4, u=7, v=1] [L34] EXPR counter++ VAL [A=5, counter=2, counter++=1, r=4, R=2, u=7, v=1] [L34] COND FALSE !(counter++<1) [L48] CALL __VERIFIER_assert(((long long) 4*A) == u*u - v*v - 2*u + 2*v) VAL [\old(cond)=0, counter=2] [L12] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=2] [L14] 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 90.2MB. Free memory was 68.4MB in the beginning and 68.3MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.29ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 51.6MB in the beginning and 84.2MB in the end (delta: -32.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.46ms. Allocated memory is still 109.1MB. Free memory was 84.2MB in the beginning and 82.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.04ms. Allocated memory is still 109.1MB. Free memory was 82.8MB in the beginning and 81.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 460.77ms. Allocated memory is still 109.1MB. Free memory was 81.6MB in the beginning and 69.1MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 20943.06ms. Allocated memory is still 109.1MB. Free memory was 69.1MB in the beginning and 41.7MB in the end (delta: 27.4MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * Witness Printer took 82.09ms. Allocated memory is still 109.1MB. Free memory was 41.7MB in the beginning and 39.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:58:33,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611b791b-e1a8-4d72-952b-151ba7f24cab/bin/ukojak-92XMlrwhuB/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