./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.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_ed00cf90-6253-4088-91c4-831fa71d2f3a/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed00cf90-6253-4088-91c4-831fa71d2f3a/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_ed00cf90-6253-4088-91c4-831fa71d2f3a/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed00cf90-6253-4088-91c4-831fa71d2f3a/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed00cf90-6253-4088-91c4-831fa71d2f3a/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_ed00cf90-6253-4088-91c4-831fa71d2f3a/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 5211c9fa82ede95ab74fc9c54718f437923c350e1c105ec6d7fa45c8b49537a3 --- 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 16:36:41,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:36:41,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:36:41,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:36:41,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:36:41,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:36:41,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:36:41,889 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:36:41,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:36:41,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:36:41,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:36:41,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:36:41,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:36:41,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:36:41,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:36:41,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:36:41,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:36:41,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:36:41,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:36:41,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:36:41,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:36:41,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:36:41,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:36:41,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:36:41,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:36:41,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:36:41,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:36:41,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:36:41,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:36:41,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:36:41,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:36:41,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:36:41,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:36:41,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:36:41,965 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:36:41,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:36:41,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:36:41,966 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:36:41,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:36:41,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:36:41,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:36:41,969 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed00cf90-6253-4088-91c4-831fa71d2f3a/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:36:42,028 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:36:42,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:36:42,031 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:36:42,031 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:36:42,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:36:42,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:36:42,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:36:42,033 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:36:42,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:36:42,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:36:42,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:36:42,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:36:42,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:36:42,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:36:42,036 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:36:42,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:36:42,036 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:36:42,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:36:42,037 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:36:42,037 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:36:42,038 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:36:42,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:36:42,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:36:42,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:36:42,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:36:42,039 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:36:42,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:36:42,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:36:42,040 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_ed00cf90-6253-4088-91c4-831fa71d2f3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed00cf90-6253-4088-91c4-831fa71d2f3a/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5211c9fa82ede95ab74fc9c54718f437923c350e1c105ec6d7fa45c8b49537a3 [2022-10-17 16:36:42,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:36:42,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:36:42,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:36:42,351 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:36:42,352 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:36:42,354 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed00cf90-6253-4088-91c4-831fa71d2f3a/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c [2022-10-17 16:36:42,439 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed00cf90-6253-4088-91c4-831fa71d2f3a/bin/ukojak-92XMlrwhuB/data/c20e7ea71/9242cc99d12b45f1a4dd6711ef8abcb7/FLAG72cc6aac3 [2022-10-17 16:36:42,921 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:36:42,922 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed00cf90-6253-4088-91c4-831fa71d2f3a/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c [2022-10-17 16:36:42,932 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed00cf90-6253-4088-91c4-831fa71d2f3a/bin/ukojak-92XMlrwhuB/data/c20e7ea71/9242cc99d12b45f1a4dd6711ef8abcb7/FLAG72cc6aac3 [2022-10-17 16:36:43,298 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed00cf90-6253-4088-91c4-831fa71d2f3a/bin/ukojak-92XMlrwhuB/data/c20e7ea71/9242cc99d12b45f1a4dd6711ef8abcb7 [2022-10-17 16:36:43,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:36:43,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:36:43,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:36:43,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:36:43,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:36:43,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:36:43" (1/1) ... [2022-10-17 16:36:43,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e38877c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:43, skipping insertion in model container [2022-10-17 16:36:43,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:36:43" (1/1) ... [2022-10-17 16:36:43,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:36:43,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:36:43,516 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_ed00cf90-6253-4088-91c4-831fa71d2f3a/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c[454,467] [2022-10-17 16:36:43,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:36:43,539 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:36:43,552 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_ed00cf90-6253-4088-91c4-831fa71d2f3a/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c[454,467] [2022-10-17 16:36:43,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:36:43,570 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:36:43,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:43 WrapperNode [2022-10-17 16:36:43,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:36:43,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:36:43,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:36:43,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:36:43,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:43" (1/1) ... [2022-10-17 16:36:43,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:43" (1/1) ... [2022-10-17 16:36:43,611 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2022-10-17 16:36:43,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:36:43,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:36:43,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:36:43,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:36:43,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:43" (1/1) ... [2022-10-17 16:36:43,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:43" (1/1) ... [2022-10-17 16:36:43,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:43" (1/1) ... [2022-10-17 16:36:43,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:43" (1/1) ... [2022-10-17 16:36:43,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:43" (1/1) ... [2022-10-17 16:36:43,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:43" (1/1) ... [2022-10-17 16:36:43,648 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:43" (1/1) ... [2022-10-17 16:36:43,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:43" (1/1) ... [2022-10-17 16:36:43,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:36:43,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:36:43,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:36:43,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:36:43,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:43" (1/1) ... [2022-10-17 16:36:43,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:36:43,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed00cf90-6253-4088-91c4-831fa71d2f3a/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:36:43,695 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed00cf90-6253-4088-91c4-831fa71d2f3a/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:36:43,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed00cf90-6253-4088-91c4-831fa71d2f3a/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:36:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:36:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:36:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:36:43,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:36:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:36:43,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:36:43,800 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:36:43,802 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:36:43,951 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:36:43,985 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:36:43,986 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:36:43,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:36:43 BoogieIcfgContainer [2022-10-17 16:36:43,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:36:43,989 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:36:43,989 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:36:44,013 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:36:44,013 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:36:43" (1/1) ... [2022-10-17 16:36:44,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:36:44,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:44,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2022-10-17 16:36:44,118 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2022-10-17 16:36:44,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:36:44,120 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:44,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:44,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 16:36:44,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:36:44,430 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 16:36:44,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:44,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2022-10-17 16:36:44,533 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2022-10-17 16:36:44,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:36:44,539 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:44,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:44,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:36:44,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:36:44,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:36:45,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:45,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2022-10-17 16:36:45,056 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2022-10-17 16:36:45,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:36:45,058 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:45,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:45,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:36:45,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:36:45,192 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 16:36:45,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:45,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2022-10-17 16:36:45,391 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2022-10-17 16:36:45,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 16:36:45,393 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:45,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:45,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-17 16:36:45,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:36:45,588 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:36:45,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:45,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2022-10-17 16:36:45,872 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2022-10-17 16:36:45,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-17 16:36:45,873 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:45,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:45,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 16:36:45,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:36:46,120 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:36:46,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:46,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 17 states and 21 transitions. [2022-10-17 16:36:46,944 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-10-17 16:36:46,946 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:36:46,947 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2022-10-17 16:36:46,962 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-10-17 16:36:47,046 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:36:47,050 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:36:47,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:36:47 ImpRootNode [2022-10-17 16:36:47,051 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:36:47,052 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:36:47,052 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:36:47,052 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:36:47,053 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:36:43" (3/4) ... [2022-10-17 16:36:47,059 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:36:47,065 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-10-17 16:36:47,075 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-10-17 16:36:47,076 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-10-17 16:36:47,077 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-10-17 16:36:47,077 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:36:47,139 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed00cf90-6253-4088-91c4-831fa71d2f3a/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:36:47,139 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:36:47,140 INFO L158 Benchmark]: Toolchain (without parser) took 3837.87ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 74.7MB in the beginning and 71.1MB in the end (delta: 3.7MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2022-10-17 16:36:47,141 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 96.5MB. Free memory was 68.8MB in the beginning and 68.8MB in the end (delta: 46.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:36:47,142 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.47ms. Allocated memory is still 96.5MB. Free memory was 74.5MB in the beginning and 70.9MB in the end (delta: 3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:36:47,142 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.38ms. Allocated memory is still 96.5MB. Free memory was 70.9MB in the beginning and 69.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:36:47,146 INFO L158 Benchmark]: Boogie Preprocessor took 43.64ms. Allocated memory is still 96.5MB. Free memory was 69.4MB in the beginning and 68.4MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:36:47,147 INFO L158 Benchmark]: RCFGBuilder took 331.33ms. Allocated memory is still 96.5MB. Free memory was 68.1MB in the beginning and 57.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:36:47,148 INFO L158 Benchmark]: CodeCheck took 3062.01ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 57.1MB in the beginning and 74.0MB in the end (delta: -16.9MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2022-10-17 16:36:47,148 INFO L158 Benchmark]: Witness Printer took 87.80ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 71.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:36:47,160 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, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 107 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 119 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 68 mSDsCounter, 126 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 277 IncrementalHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 126 mSolverCounterUnsat, 51 mSDtfsCounter, 277 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 651 GetRequests, 588 SyntacticMatches, 9 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 868 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 296 SizeOfPredicates, 7 NumberOfNonLiveVariables, 352 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 44/54 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: 37]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 96.5MB. Free memory was 68.8MB in the beginning and 68.8MB in the end (delta: 46.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.47ms. Allocated memory is still 96.5MB. Free memory was 74.5MB in the beginning and 70.9MB in the end (delta: 3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.38ms. Allocated memory is still 96.5MB. Free memory was 70.9MB in the beginning and 69.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.64ms. Allocated memory is still 96.5MB. Free memory was 69.4MB in the beginning and 68.4MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 331.33ms. Allocated memory is still 96.5MB. Free memory was 68.1MB in the beginning and 57.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 3062.01ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 57.1MB in the beginning and 74.0MB in the end (delta: -16.9MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * Witness Printer took 87.80ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 71.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:36:47,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed00cf90-6253-4088-91c4-831fa71d2f3a/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