./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.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_f7f82df1-5f3b-4d4e-b4ba-b5393c35b212/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f82df1-5f3b-4d4e-b4ba-b5393c35b212/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_f7f82df1-5f3b-4d4e-b4ba-b5393c35b212/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f82df1-5f3b-4d4e-b4ba-b5393c35b212/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f82df1-5f3b-4d4e-b4ba-b5393c35b212/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_f7f82df1-5f3b-4d4e-b4ba-b5393c35b212/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 9c6f057d93c74db928b7d0b0915eda2af89e3a19cf93af1e21b1cfa684bd6cf4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:01:54,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:01:54,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:01:54,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:01:54,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:01:54,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:01:54,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:01:54,957 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:01:54,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:01:54,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:01:54,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:01:54,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:01:54,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:01:54,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:01:54,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:01:54,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:01:54,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:01:54,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:01:54,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:01:54,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:01:54,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:01:54,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:01:55,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:01:55,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:01:55,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:01:55,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:01:55,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:01:55,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:01:55,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:01:55,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:01:55,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:01:55,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:01:55,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:01:55,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:01:55,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:01:55,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:01:55,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:01:55,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:01:55,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:01:55,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:01:55,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:01:55,030 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f82df1-5f3b-4d4e-b4ba-b5393c35b212/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:01:55,080 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:01:55,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:01:55,082 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:01:55,082 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:01:55,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:01:55,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:01:55,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:01:55,084 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:01:55,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:01:55,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:01:55,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:01:55,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:01:55,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:01:55,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:01:55,086 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:01:55,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:01:55,087 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:01:55,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:01:55,087 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:01:55,087 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:01:55,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:01:55,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:01:55,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:01:55,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:01:55,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:01:55,089 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:01:55,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:01:55,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:01:55,089 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_f7f82df1-5f3b-4d4e-b4ba-b5393c35b212/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f82df1-5f3b-4d4e-b4ba-b5393c35b212/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c6f057d93c74db928b7d0b0915eda2af89e3a19cf93af1e21b1cfa684bd6cf4 [2021-11-23 01:01:55,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:01:55,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:01:55,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:01:55,400 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:01:55,401 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:01:55,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f82df1-5f3b-4d4e-b4ba-b5393c35b212/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c [2021-11-23 01:01:55,475 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f82df1-5f3b-4d4e-b4ba-b5393c35b212/bin/ukojak-LBtLqBUTdQ/data/66bda77bf/8cb3f19efb1c47ac96be99100f05b111/FLAG4153c2ca6 [2021-11-23 01:01:56,044 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:01:56,045 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f82df1-5f3b-4d4e-b4ba-b5393c35b212/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c [2021-11-23 01:01:56,056 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f82df1-5f3b-4d4e-b4ba-b5393c35b212/bin/ukojak-LBtLqBUTdQ/data/66bda77bf/8cb3f19efb1c47ac96be99100f05b111/FLAG4153c2ca6 [2021-11-23 01:01:56,398 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f82df1-5f3b-4d4e-b4ba-b5393c35b212/bin/ukojak-LBtLqBUTdQ/data/66bda77bf/8cb3f19efb1c47ac96be99100f05b111 [2021-11-23 01:01:56,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:01:56,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:01:56,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:01:56,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:01:56,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:01:56,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:01:56" (1/1) ... [2021-11-23 01:01:56,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6be1fe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:56, skipping insertion in model container [2021-11-23 01:01:56,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:01:56" (1/1) ... [2021-11-23 01:01:56,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:01:56,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:01:56,610 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_f7f82df1-5f3b-4d4e-b4ba-b5393c35b212/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c[458,471] [2021-11-23 01:01:56,624 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:01:56,633 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:01:56,645 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_f7f82df1-5f3b-4d4e-b4ba-b5393c35b212/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c[458,471] [2021-11-23 01:01:56,651 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:01:56,664 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:01:56,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:56 WrapperNode [2021-11-23 01:01:56,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:01:56,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:01:56,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:01:56,667 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:01:56,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:56" (1/1) ... [2021-11-23 01:01:56,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:56" (1/1) ... [2021-11-23 01:01:56,700 INFO L137 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2021-11-23 01:01:56,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:01:56,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:01:56,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:01:56,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:01:56,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:56" (1/1) ... [2021-11-23 01:01:56,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:56" (1/1) ... [2021-11-23 01:01:56,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:56" (1/1) ... [2021-11-23 01:01:56,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:56" (1/1) ... [2021-11-23 01:01:56,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:56" (1/1) ... [2021-11-23 01:01:56,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:56" (1/1) ... [2021-11-23 01:01:56,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:56" (1/1) ... [2021-11-23 01:01:56,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:01:56,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:01:56,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:01:56,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:01:56,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:56" (1/1) ... [2021-11-23 01:01:56,745 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:01:56,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f82df1-5f3b-4d4e-b4ba-b5393c35b212/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:01:56,773 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f82df1-5f3b-4d4e-b4ba-b5393c35b212/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:01:56,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f82df1-5f3b-4d4e-b4ba-b5393c35b212/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:01:56,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:01:56,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:01:56,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:01:56,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:01:56,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:01:56,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:01:56,880 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:01:56,882 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:01:57,002 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:01:57,024 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:01:57,025 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:01:57,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:01:57 BoogieIcfgContainer [2021-11-23 01:01:57,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:01:57,028 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:01:57,029 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:01:57,040 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:01:57,040 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:01:57" (1/1) ... [2021-11-23 01:01:57,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:01:57,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:57,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2021-11-23 01:01:57,110 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2021-11-23 01:01:57,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:01:57,112 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:57,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:57,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:01:57,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:01:57,398 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 01:01:57,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:57,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2021-11-23 01:01:57,496 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2021-11-23 01:01:57,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 01:01:57,500 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:57,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:57,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 01:01:57,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:01:57,592 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 01:01:57,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:57,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2021-11-23 01:01:57,646 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2021-11-23 01:01:57,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:01:57,648 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:57,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:57,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:01:57,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:01:57,866 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:01:58,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:58,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 23 states and 35 transitions. [2021-11-23 01:01:58,219 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 35 transitions. [2021-11-23 01:01:58,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:01:58,220 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:58,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:58,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:01:58,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:01:58,470 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:01:58,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:58,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 44 transitions. [2021-11-23 01:01:58,730 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 44 transitions. [2021-11-23 01:01:58,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 01:01:58,731 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:58,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:58,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 01:01:58,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:01:59,031 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 01:02:01,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:02:01,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:02:01,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 34 states and 61 transitions. [2021-11-23 01:02:01,474 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 61 transitions. [2021-11-23 01:02:01,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 01:02:01,475 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:02:01,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:02:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:02:01,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 01:02:01,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:02:01,692 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 01:02:02,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:02:02,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 23 states and 29 transitions. [2021-11-23 01:02:02,338 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2021-11-23 01:02:02,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 01:02:02,339 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:02:02,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:02:02,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:02:02,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:02:02,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:02:02,460 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 01:02:02,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:02:02,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 16 states and 20 transitions. [2021-11-23 01:02:02,758 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-11-23 01:02:02,758 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:02:02,758 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2021-11-23 01:02:02,766 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 01:02:02,832 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:02:02,834 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:02:02,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:02:02 ImpRootNode [2021-11-23 01:02:02,835 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:02:02,836 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:02:02,836 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:02:02,836 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:02:02,836 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:01:57" (3/4) ... [2021-11-23 01:02:02,839 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:02:02,845 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-23 01:02:02,848 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-11-23 01:02:02,849 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-23 01:02:02,849 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 01:02:02,849 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:02:02,890 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f82df1-5f3b-4d4e-b4ba-b5393c35b212/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:02:02,890 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:02:02,891 INFO L158 Benchmark]: Toolchain (without parser) took 6488.48ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 44.2MB in the beginning and 81.3MB in the end (delta: -37.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:02:02,892 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 86.0MB. Free memory was 60.2MB in the beginning and 60.2MB in the end (delta: 45.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:02:02,892 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.23ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 44.0MB in the beginning and 88.1MB in the end (delta: -44.1MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2021-11-23 01:02:02,893 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.04ms. Allocated memory is still 117.4MB. Free memory was 87.7MB in the beginning and 86.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:02:02,894 INFO L158 Benchmark]: Boogie Preprocessor took 33.02ms. Allocated memory is still 117.4MB. Free memory was 86.4MB in the beginning and 85.6MB in the end (delta: 812.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:02:02,894 INFO L158 Benchmark]: RCFGBuilder took 292.88ms. Allocated memory is still 117.4MB. Free memory was 85.5MB in the beginning and 75.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 01:02:02,895 INFO L158 Benchmark]: CodeCheck took 5806.58ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 83.3MB in the end (delta: -7.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:02:02,895 INFO L158 Benchmark]: Witness Printer took 54.73ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 81.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:02:02,899 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: 5.7s, OverallIterations: 8, 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, 243 SdHoareTripleChecker+Valid, 8.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78 mSDsluCounter, 211 SdHoareTripleChecker+Invalid, 7.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 112 mSDsCounter, 204 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 559 IncrementalHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 204 mSolverCounterUnsat, 99 mSDtfsCounter, 559 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1022 GetRequests, 938 SyntacticMatches, 16 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1646 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 416 SizeOfPredicates, 11 NumberOfNonLiveVariables, 479 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 48/61 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 - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 86.0MB. Free memory was 60.2MB in the beginning and 60.2MB in the end (delta: 45.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.23ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 44.0MB in the beginning and 88.1MB in the end (delta: -44.1MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.04ms. Allocated memory is still 117.4MB. Free memory was 87.7MB in the beginning and 86.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.02ms. Allocated memory is still 117.4MB. Free memory was 86.4MB in the beginning and 85.6MB in the end (delta: 812.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 292.88ms. Allocated memory is still 117.4MB. Free memory was 85.5MB in the beginning and 75.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 5806.58ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 83.3MB in the end (delta: -7.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 54.73ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 81.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 01:02:02,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f82df1-5f3b-4d4e-b4ba-b5393c35b212/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 Result: TRUE