./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i --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_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/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_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/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_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/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 503a3e49b44041609ec1bba765b53912c88abb90ff278e61e68e863904faf4bb --- 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 16:45:48,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:45:48,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:45:48,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:45:48,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:45:48,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:45:48,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:45:48,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:45:48,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:45:48,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:45:48,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:45:48,779 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:45:48,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:45:48,783 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:45:48,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:45:48,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:45:48,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:45:48,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:45:48,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:45:48,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:45:48,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:45:48,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:45:48,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:45:48,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:45:48,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:45:48,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:45:48,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:45:48,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:45:48,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:45:48,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:45:48,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:45:48,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:45:48,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:45:48,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:45:48,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:45:48,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:45:48,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:45:48,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:45:48,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:45:48,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:45:48,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:45:48,839 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:45:48,886 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:45:48,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:45:48,888 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:45:48,888 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:45:48,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:45:48,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:45:48,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:45:48,889 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:45:48,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:45:48,890 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:45:48,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:45:48,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:45:48,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:45:48,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:45:48,891 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:45:48,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:45:48,892 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:45:48,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:45:48,892 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:45:48,893 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:45:48,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:45:48,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:45:48,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:45:48,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:45:48,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:45:48,894 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:45:48,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:45:48,896 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:45:48,896 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_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 503a3e49b44041609ec1bba765b53912c88abb90ff278e61e68e863904faf4bb [2022-10-17 16:45:49,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:45:49,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:45:49,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:45:49,189 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:45:49,190 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:45:49,192 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i [2022-10-17 16:45:49,274 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/bin/ukojak-92XMlrwhuB/data/989603dca/267e7fe4f71b4fb78418e64743e174b3/FLAG1f6f0f22b [2022-10-17 16:45:49,881 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:45:49,884 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i [2022-10-17 16:45:49,904 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/bin/ukojak-92XMlrwhuB/data/989603dca/267e7fe4f71b4fb78418e64743e174b3/FLAG1f6f0f22b [2022-10-17 16:45:50,155 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/bin/ukojak-92XMlrwhuB/data/989603dca/267e7fe4f71b4fb78418e64743e174b3 [2022-10-17 16:45:50,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:45:50,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:45:50,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:45:50,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:45:50,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:45:50,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:45:50" (1/1) ... [2022-10-17 16:45:50,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eae5d4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:50, skipping insertion in model container [2022-10-17 16:45:50,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:45:50" (1/1) ... [2022-10-17 16:45:50,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:45:50,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:45:50,589 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_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22534,22547] [2022-10-17 16:45:50,595 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_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22606,22619] [2022-10-17 16:45:50,598 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_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22746,22759] [2022-10-17 16:45:50,600 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_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22820,22833] [2022-10-17 16:45:50,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:45:50,624 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:45:50,691 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_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22534,22547] [2022-10-17 16:45:50,702 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_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22606,22619] [2022-10-17 16:45:50,705 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_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22746,22759] [2022-10-17 16:45:50,707 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_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22820,22833] [2022-10-17 16:45:50,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:45:50,749 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:45:50,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:50 WrapperNode [2022-10-17 16:45:50,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:45:50,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:45:50,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:45:50,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:45:50,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:50" (1/1) ... [2022-10-17 16:45:50,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:50" (1/1) ... [2022-10-17 16:45:50,833 INFO L138 Inliner]: procedures = 119, calls = 36, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 122 [2022-10-17 16:45:50,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:45:50,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:45:50,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:45:50,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:45:50,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:50" (1/1) ... [2022-10-17 16:45:50,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:50" (1/1) ... [2022-10-17 16:45:50,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:50" (1/1) ... [2022-10-17 16:45:50,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:50" (1/1) ... [2022-10-17 16:45:50,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:50" (1/1) ... [2022-10-17 16:45:50,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:50" (1/1) ... [2022-10-17 16:45:50,888 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:50" (1/1) ... [2022-10-17 16:45:50,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:50" (1/1) ... [2022-10-17 16:45:50,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:45:50,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:45:50,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:45:50,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:45:50,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:50" (1/1) ... [2022-10-17 16:45:50,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:45:50,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:45:50,924 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:45:50,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f34bd0e-eda3-4b30-87ee-1a8d94913a80/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:45:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:45:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:45:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:45:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:45:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 16:45:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 16:45:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:45:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:45:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:45:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:45:51,087 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:45:51,089 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:45:51,394 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:45:51,483 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:45:51,483 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-10-17 16:45:51,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:45:51 BoogieIcfgContainer [2022-10-17 16:45:51,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:45:51,487 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:45:51,487 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:45:51,501 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:45:51,502 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:45:51" (1/1) ... [2022-10-17 16:45:51,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:45:51,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:51,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 27 states and 43 transitions. [2022-10-17 16:45:51,567 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 43 transitions. [2022-10-17 16:45:51,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:45:51,570 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:51,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:51,831 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 16:45:51,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:51,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2022-10-17 16:45:51,890 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2022-10-17 16:45:51,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:45:51,890 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:51,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:51,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:52,210 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 16:45:52,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:52,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2022-10-17 16:45:52,347 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2022-10-17 16:45:52,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:45:52,347 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:52,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:52,550 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 16:45:52,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:52,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 32 states and 43 transitions. [2022-10-17 16:45:52,899 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2022-10-17 16:45:52,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 16:45:52,900 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:52,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:54,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:54,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:54,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 34 states and 48 transitions. [2022-10-17 16:45:54,522 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2022-10-17 16:45:54,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:45:54,524 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:54,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:54,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:54,692 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 16:45:54,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:54,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 36 states and 49 transitions. [2022-10-17 16:45:54,890 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2022-10-17 16:45:54,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:45:54,890 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:54,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:57,276 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:58,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:58,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 27 states and 36 transitions. [2022-10-17 16:45:58,021 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2022-10-17 16:45:58,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-17 16:45:58,023 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:58,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:58,257 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 16:45:59,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:59,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 37 states and 51 transitions. [2022-10-17 16:45:59,858 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2022-10-17 16:45:59,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-17 16:45:59,859 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:59,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:59,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:01,792 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:07,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:07,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 51 states and 82 transitions. [2022-10-17 16:46:07,364 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 82 transitions. [2022-10-17 16:46:07,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 16:46:07,365 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:07,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:07,458 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:46:07,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:07,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 52 states and 83 transitions. [2022-10-17 16:46:07,955 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 83 transitions. [2022-10-17 16:46:07,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 16:46:07,957 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:07,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:08,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:11,541 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:18,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:18,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 67 states and 114 transitions. [2022-10-17 16:46:18,756 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 114 transitions. [2022-10-17 16:46:18,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-17 16:46:18,758 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:18,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:19,270 ERROR L594 CodeCheckObserver]: First Tracecheck threw exception null [2022-10-17 16:46:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:19,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 77 conjunts are in the unsatisfiable core [2022-10-17 16:46:19,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:46:19,500 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-10-17 16:46:19,501 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-10-17 16:46:19,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 16:46:19,921 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 223 treesize of output 235