./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-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_c6f1445b-02b7-4176-81bd-515cd70e213b/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1445b-02b7-4176-81bd-515cd70e213b/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_c6f1445b-02b7-4176-81bd-515cd70e213b/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1445b-02b7-4176-81bd-515cd70e213b/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1445b-02b7-4176-81bd-515cd70e213b/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_c6f1445b-02b7-4176-81bd-515cd70e213b/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 c7f1683dc0c60d20b83300f79a9b15e37cd1fd05703e492aec10298f1b5a1afa --- 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 17:00:33,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:00:33,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:00:33,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:00:33,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:00:33,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:00:33,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:00:33,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:00:33,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:00:33,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:00:33,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:00:33,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:00:33,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:00:33,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:00:33,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:00:33,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:00:33,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:00:33,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:00:33,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:00:33,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:00:33,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:00:33,942 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:00:33,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:00:33,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:00:33,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:00:33,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:00:33,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:00:33,962 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:00:33,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:00:33,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:00:33,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:00:33,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:00:33,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:00:33,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:00:33,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:00:33,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:00:33,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:00:33,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:00:33,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:00:33,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:00:33,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:00:33,976 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1445b-02b7-4176-81bd-515cd70e213b/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 17:00:34,022 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:00:34,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:00:34,024 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:00:34,024 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 17:00:34,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 17:00:34,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 17:00:34,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:00:34,026 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:00:34,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:00:34,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:00:34,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:00:34,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:00:34,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:00:34,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:00:34,028 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:00:34,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:00:34,028 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:00:34,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:00:34,029 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 17:00:34,029 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 17:00:34,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:00:34,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:00:34,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:00:34,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:00:34,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:00:34,030 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 17:00:34,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:00:34,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:00:34,032 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_c6f1445b-02b7-4176-81bd-515cd70e213b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1445b-02b7-4176-81bd-515cd70e213b/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7f1683dc0c60d20b83300f79a9b15e37cd1fd05703e492aec10298f1b5a1afa [2022-10-17 17:00:34,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:00:34,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:00:34,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:00:34,379 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:00:34,380 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:00:34,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1445b-02b7-4176-81bd-515cd70e213b/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c [2022-10-17 17:00:34,483 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1445b-02b7-4176-81bd-515cd70e213b/bin/ukojak-92XMlrwhuB/data/684f5975b/041f652a122c4443aae0cf2a988ba0bb/FLAG67baa9611 [2022-10-17 17:00:35,092 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:00:35,093 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1445b-02b7-4176-81bd-515cd70e213b/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c [2022-10-17 17:00:35,100 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1445b-02b7-4176-81bd-515cd70e213b/bin/ukojak-92XMlrwhuB/data/684f5975b/041f652a122c4443aae0cf2a988ba0bb/FLAG67baa9611 [2022-10-17 17:00:35,431 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1445b-02b7-4176-81bd-515cd70e213b/bin/ukojak-92XMlrwhuB/data/684f5975b/041f652a122c4443aae0cf2a988ba0bb [2022-10-17 17:00:35,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:00:35,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:00:35,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:00:35,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:00:35,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:00:35,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@218faece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35, skipping insertion in model container [2022-10-17 17:00:35,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:00:35,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:00:35,663 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_c6f1445b-02b7-4176-81bd-515cd70e213b/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c[524,537] [2022-10-17 17:00:35,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:00:35,721 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:00:35,734 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_c6f1445b-02b7-4176-81bd-515cd70e213b/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c[524,537] [2022-10-17 17:00:35,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:00:35,759 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:00:35,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35 WrapperNode [2022-10-17 17:00:35,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:00:35,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:00:35,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:00:35,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:00:35,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,800 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-10-17 17:00:35,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:00:35,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:00:35,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:00:35,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:00:35,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,825 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:00:35,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:00:35,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:00:35,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:00:35,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:35" (1/1) ... [2022-10-17 17:00:35,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:00:35,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1445b-02b7-4176-81bd-515cd70e213b/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 17:00:35,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1445b-02b7-4176-81bd-515cd70e213b/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 17:00:35,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1445b-02b7-4176-81bd-515cd70e213b/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 17:00:35,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:00:35,912 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 17:00:35,915 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 17:00:35,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:00:35,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:00:35,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:00:35,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 17:00:35,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 17:00:35,995 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:00:35,998 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:00:36,292 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:00:36,435 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:00:36,435 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 17:00:36,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:00:36 BoogieIcfgContainer [2022-10-17 17:00:36,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:00:36,440 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 17:00:36,440 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 17:00:36,461 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 17:00:36,461 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:00:36" (1/1) ... [2022-10-17 17:00:36,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:00:36,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:36,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2022-10-17 17:00:36,557 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2022-10-17 17:00:36,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-17 17:00:36,563 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:36,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:36,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-17 17:00:36,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:00:37,212 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 17:00:37,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:37,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 33 transitions. [2022-10-17 17:00:37,477 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2022-10-17 17:00:37,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 17:00:37,479 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:37,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:37,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-17 17:00:37,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:00:37,653 WARN L640 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-10-17 17:00:38,002 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 17:00:41,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.65s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-10-17 17:00:42,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:42,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 29 states and 45 transitions. [2022-10-17 17:00:42,442 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 45 transitions. [2022-10-17 17:00:42,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 17:00:42,443 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:42,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:42,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-17 17:00:42,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:00:43,277 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 17:00:46,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-10-17 17:00:46,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:46,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 32 states and 50 transitions. [2022-10-17 17:00:46,980 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 50 transitions. [2022-10-17 17:00:46,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-17 17:00:46,981 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:46,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:47,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-17 17:00:47,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:00:47,123 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-17 17:00:47,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:47,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 34 states and 57 transitions. [2022-10-17 17:00:47,418 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 57 transitions. [2022-10-17 17:00:47,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-17 17:00:47,420 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:47,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:47,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-17 17:00:47,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:00:47,941 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-17 17:00:50,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-10-17 17:00:50,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:50,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 35 states and 61 transitions. [2022-10-17 17:00:50,918 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 61 transitions. [2022-10-17 17:00:50,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-17 17:00:50,919 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:50,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:50,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-17 17:00:50,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:00:51,346 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-17 17:00:52,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:52,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 30 states and 39 transitions. [2022-10-17 17:00:52,126 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2022-10-17 17:00:52,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-17 17:00:52,130 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:52,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:52,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-17 17:00:52,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:00:52,675 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-17 17:00:53,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:53,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 24 states and 31 transitions. [2022-10-17 17:00:53,672 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2022-10-17 17:00:53,673 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 17:00:53,673 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2022-10-17 17:00:53,681 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-10-17 17:00:53,883 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 17:00:53,887 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 17:00:53,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 05:00:53 ImpRootNode [2022-10-17 17:00:53,888 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 17:00:53,889 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 17:00:53,889 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 17:00:53,890 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 17:00:53,890 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:00:36" (3/4) ... [2022-10-17 17:00:53,896 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 17:00:53,905 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-10-17 17:00:53,905 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-10-17 17:00:53,912 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-10-17 17:00:53,912 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-10-17 17:00:53,913 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-10-17 17:00:53,913 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 17:00:53,998 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1445b-02b7-4176-81bd-515cd70e213b/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 17:00:53,998 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 17:00:53,999 INFO L158 Benchmark]: Toolchain (without parser) took 18563.45ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 111.6MB in the beginning and 148.1MB in the end (delta: -36.5MB). Peak memory consumption was 91.1MB. Max. memory is 16.1GB. [2022-10-17 17:00:54,000 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory is still 43.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:00:54,001 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.63ms. Allocated memory is still 146.8MB. Free memory was 111.1MB in the beginning and 120.1MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 17:00:54,002 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.60ms. Allocated memory is still 146.8MB. Free memory was 120.1MB in the beginning and 118.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:00:54,005 INFO L158 Benchmark]: Boogie Preprocessor took 27.86ms. Allocated memory is still 146.8MB. Free memory was 118.5MB in the beginning and 116.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:00:54,006 INFO L158 Benchmark]: RCFGBuilder took 608.75ms. Allocated memory is still 146.8MB. Free memory was 116.9MB in the beginning and 99.6MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-10-17 17:00:54,006 INFO L158 Benchmark]: CodeCheck took 17448.31ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 99.6MB in the beginning and 52.2MB in the end (delta: 47.4MB). Peak memory consumption was 79.4MB. Max. memory is 16.1GB. [2022-10-17 17:00:54,008 INFO L158 Benchmark]: Witness Printer took 109.32ms. Allocated memory is still 176.2MB. Free memory was 52.2MB in the beginning and 148.1MB in the end (delta: -95.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:00:54,011 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.2s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 324 SdHoareTripleChecker+Valid, 41.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 191 SdHoareTripleChecker+Invalid, 40.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 238 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 763 IncrementalHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 238 mSolverCounterUnsat, 131 mSDtfsCounter, 763 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1574 GetRequests, 1461 SyntacticMatches, 41 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1922 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 181 ConstructedInterpolants, 0 QuantifiedInterpolants, 1125 SizeOfPredicates, 34 NumberOfNonLiveVariables, 634 ConjunctsInSsa, 136 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 91/103 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: 14]: 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: 58]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: 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 92.3MB. Free memory is still 43.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.63ms. Allocated memory is still 146.8MB. Free memory was 111.1MB in the beginning and 120.1MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.60ms. Allocated memory is still 146.8MB. Free memory was 120.1MB in the beginning and 118.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.86ms. Allocated memory is still 146.8MB. Free memory was 118.5MB in the beginning and 116.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 608.75ms. Allocated memory is still 146.8MB. Free memory was 116.9MB in the beginning and 99.6MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 17448.31ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 99.6MB in the beginning and 52.2MB in the end (delta: 47.4MB). Peak memory consumption was 79.4MB. Max. memory is 16.1GB. * Witness Printer took 109.32ms. Allocated memory is still 176.2MB. Free memory was 52.2MB in the beginning and 148.1MB in the end (delta: -95.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 17:00:54,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1445b-02b7-4176-81bd-515cd70e213b/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