./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 dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cbda608-2d02-49c0-a956-9166749718ed/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cbda608-2d02-49c0-a956-9166749718ed/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_8cbda608-2d02-49c0-a956-9166749718ed/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cbda608-2d02-49c0-a956-9166749718ed/bin/ukojak-92XMlrwhuB/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_8cbda608-2d02-49c0-a956-9166749718ed/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_8cbda608-2d02-49c0-a956-9166749718ed/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 9c6f057d93c74db928b7d0b0915eda2af89e3a19cf93af1e21b1cfa684bd6cf4 --- 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 16:36:33,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:36:33,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:36:33,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:36:33,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:36:33,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:36:33,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:36:33,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:36:33,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:36:33,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:36:33,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:36:33,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:36:33,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:36:33,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:36:34,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:36:34,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:36:34,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:36:34,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:36:34,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:36:34,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:36:34,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:36:34,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:36:34,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:36:34,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:36:34,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:36:34,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:36:34,036 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:36:34,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:36:34,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:36:34,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:36:34,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:36:34,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:36:34,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:36:34,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:36:34,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:36:34,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:36:34,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:36:34,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:36:34,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:36:34,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:36:34,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:36:34,057 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cbda608-2d02-49c0-a956-9166749718ed/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:36:34,113 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:36:34,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:36:34,114 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:36:34,115 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:36:34,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:36:34,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:36:34,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:36:34,116 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:36:34,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:36:34,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:36:34,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:36:34,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:36:34,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:36:34,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:36:34,119 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:36:34,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:36:34,119 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:36:34,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:36:34,120 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:36:34,120 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:36:34,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:36:34,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:36:34,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:36:34,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:36:34,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:36:34,121 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:36:34,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:36:34,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:36:34,122 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_8cbda608-2d02-49c0-a956-9166749718ed/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cbda608-2d02-49c0-a956-9166749718ed/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c6f057d93c74db928b7d0b0915eda2af89e3a19cf93af1e21b1cfa684bd6cf4 [2022-10-17 16:36:34,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:36:34,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:36:34,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:36:34,487 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:36:34,488 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:36:34,490 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cbda608-2d02-49c0-a956-9166749718ed/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c [2022-10-17 16:36:34,558 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cbda608-2d02-49c0-a956-9166749718ed/bin/ukojak-92XMlrwhuB/data/22ea538ca/ee99832f63e4432899d4bffad23215e7/FLAGfd45883d4 [2022-10-17 16:36:35,059 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:36:35,059 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cbda608-2d02-49c0-a956-9166749718ed/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c [2022-10-17 16:36:35,065 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cbda608-2d02-49c0-a956-9166749718ed/bin/ukojak-92XMlrwhuB/data/22ea538ca/ee99832f63e4432899d4bffad23215e7/FLAGfd45883d4 [2022-10-17 16:36:35,419 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cbda608-2d02-49c0-a956-9166749718ed/bin/ukojak-92XMlrwhuB/data/22ea538ca/ee99832f63e4432899d4bffad23215e7 [2022-10-17 16:36:35,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:36:35,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:36:35,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:36:35,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:36:35,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:36:35,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:36:35" (1/1) ... [2022-10-17 16:36:35,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ae51c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:35, skipping insertion in model container [2022-10-17 16:36:35,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:36:35" (1/1) ... [2022-10-17 16:36:35,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:36:35,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:36:35,654 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_8cbda608-2d02-49c0-a956-9166749718ed/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c[458,471] [2022-10-17 16:36:35,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:36:35,681 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:36:35,695 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_8cbda608-2d02-49c0-a956-9166749718ed/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c[458,471] [2022-10-17 16:36:35,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:36:35,720 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:36:35,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:35 WrapperNode [2022-10-17 16:36:35,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:36:35,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:36:35,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:36:35,724 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:36:35,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:35" (1/1) ... [2022-10-17 16:36:35,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:35" (1/1) ... [2022-10-17 16:36:35,758 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2022-10-17 16:36:35,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:36:35,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:36:35,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:36:35,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:36:35,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:35" (1/1) ... [2022-10-17 16:36:35,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:35" (1/1) ... [2022-10-17 16:36:35,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:35" (1/1) ... [2022-10-17 16:36:35,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:35" (1/1) ... [2022-10-17 16:36:35,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:35" (1/1) ... [2022-10-17 16:36:35,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:35" (1/1) ... [2022-10-17 16:36:35,779 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:35" (1/1) ... [2022-10-17 16:36:35,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:35" (1/1) ... [2022-10-17 16:36:35,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:36:35,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:36:35,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:36:35,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:36:35,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:35" (1/1) ... [2022-10-17 16:36:35,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:36:35,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cbda608-2d02-49c0-a956-9166749718ed/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:36:35,824 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cbda608-2d02-49c0-a956-9166749718ed/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:36:35,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cbda608-2d02-49c0-a956-9166749718ed/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:36:35,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:36:35,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:36:35,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:36:35,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:36:35,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:36:35,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:36:35,951 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:36:35,953 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:36:36,105 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:36:36,135 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:36:36,135 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:36:36,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:36:36 BoogieIcfgContainer [2022-10-17 16:36:36,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:36:36,139 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:36:36,139 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:36:36,151 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:36:36,151 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:36:36" (1/1) ... [2022-10-17 16:36:36,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:36:36,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:36,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2022-10-17 16:36:36,229 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2022-10-17 16:36:36,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:36:36,231 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:36,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:36,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 16:36:36,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:36:36,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:36:37,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:37,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2022-10-17 16:36:37,124 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2022-10-17 16:36:37,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:36:37,128 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:37,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:37,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 16:36:37,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:36:37,203 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:36:37,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:37,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2022-10-17 16:36:37,260 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2022-10-17 16:36:37,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:36:37,261 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:37,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:37,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:36:37,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:36:37,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:36:37,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:37,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 23 states and 35 transitions. [2022-10-17 16:36:37,726 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 35 transitions. [2022-10-17 16:36:37,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-17 16:36:37,727 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:37,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:37,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:36:37,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:36:37,998 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:36:38,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:38,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 44 transitions. [2022-10-17 16:36:38,282 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 44 transitions. [2022-10-17 16:36:38,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 16:36:38,283 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:38,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:38,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-17 16:36:38,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:36:38,516 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:36:39,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:39,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 34 states and 60 transitions. [2022-10-17 16:36:39,045 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 60 transitions. [2022-10-17 16:36:39,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 16:36:39,046 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:39,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:39,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 16:36:39,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:36:39,217 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:36:39,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:39,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 23 states and 29 transitions. [2022-10-17 16:36:39,676 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2022-10-17 16:36:39,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 16:36:39,677 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:39,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:39,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:36:39,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:36:39,791 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-17 16:36:40,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:40,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 16 states and 20 transitions. [2022-10-17 16:36:40,056 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2022-10-17 16:36:40,057 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:36:40,058 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2022-10-17 16:36:40,088 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-10-17 16:36:40,170 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:36:40,174 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:36:40,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:36:40 ImpRootNode [2022-10-17 16:36:40,176 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:36:40,177 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:36:40,177 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:36:40,178 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:36:40,178 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:36:36" (3/4) ... [2022-10-17 16:36:40,182 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:36:40,191 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-10-17 16:36:40,205 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-10-17 16:36:40,205 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-10-17 16:36:40,205 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-10-17 16:36:40,206 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:36:40,271 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cbda608-2d02-49c0-a956-9166749718ed/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:36:40,271 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:36:40,272 INFO L158 Benchmark]: Toolchain (without parser) took 4849.31ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 69.1MB in the beginning and 88.0MB in the end (delta: -18.9MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2022-10-17 16:36:40,272 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 94.4MB. Free memory is still 64.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:36:40,273 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.84ms. Allocated memory is still 94.4MB. Free memory was 68.7MB in the beginning and 68.7MB in the end (delta: 69.4kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 16:36:40,273 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.79ms. Allocated memory is still 94.4MB. Free memory was 68.7MB in the beginning and 67.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:36:40,274 INFO L158 Benchmark]: Boogie Preprocessor took 22.88ms. Allocated memory is still 94.4MB. Free memory was 67.2MB in the beginning and 66.2MB in the end (delta: 983.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:36:40,274 INFO L158 Benchmark]: RCFGBuilder took 355.16ms. Allocated memory is still 94.4MB. Free memory was 66.0MB in the beginning and 54.6MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 16:36:40,275 INFO L158 Benchmark]: CodeCheck took 4036.96ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 54.6MB in the beginning and 90.0MB in the end (delta: -35.5MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. [2022-10-17 16:36:40,275 INFO L158 Benchmark]: Witness Printer took 94.14ms. Allocated memory is still 117.4MB. Free memory was 90.0MB in the beginning and 88.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:36:40,278 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: 3.9s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 241 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 80 mSDsluCounter, 203 SdHoareTripleChecker+Invalid, 4.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 104 mSDsCounter, 193 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 526 IncrementalHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 193 mSolverCounterUnsat, 99 mSDtfsCounter, 526 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1003 GetRequests, 931 SyntacticMatches, 14 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1192 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 434 SizeOfPredicates, 12 NumberOfNonLiveVariables, 479 ConjunctsInSsa, 67 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 0.34ms. Allocated memory is still 94.4MB. Free memory is still 64.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.84ms. Allocated memory is still 94.4MB. Free memory was 68.7MB in the beginning and 68.7MB in the end (delta: 69.4kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.79ms. Allocated memory is still 94.4MB. Free memory was 68.7MB in the beginning and 67.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.88ms. Allocated memory is still 94.4MB. Free memory was 67.2MB in the beginning and 66.2MB in the end (delta: 983.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 355.16ms. Allocated memory is still 94.4MB. Free memory was 66.0MB in the beginning and 54.6MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 4036.96ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 54.6MB in the beginning and 90.0MB in the end (delta: -35.5MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. * Witness Printer took 94.14ms. Allocated memory is still 117.4MB. Free memory was 90.0MB in the beginning and 88.0MB 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! [2022-10-17 16:36:40,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cbda608-2d02-49c0-a956-9166749718ed/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 Result: TRUE