./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-properties/list-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_9a71cf57-90b3-4e28-acf4-d667fb8f77b5/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a71cf57-90b3-4e28-acf4-d667fb8f77b5/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_9a71cf57-90b3-4e28-acf4-d667fb8f77b5/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a71cf57-90b3-4e28-acf4-d667fb8f77b5/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/list-properties/list-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a71cf57-90b3-4e28-acf4-d667fb8f77b5/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_9a71cf57-90b3-4e28-acf4-d667fb8f77b5/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 a135e953d64ed0fec81eb2a1e42f4031e3e387fc71d5a5cd2177772a202dc706 --- 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 17:06:47,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:06:47,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:06:47,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:06:47,750 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:06:47,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:06:47,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:06:47,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:06:47,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:06:47,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:06:47,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:06:47,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:06:47,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:06:47,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:06:47,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:06:47,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:06:47,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:06:47,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:06:47,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:06:47,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:06:47,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:06:47,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:06:47,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:06:47,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:06:47,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:06:47,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:06:47,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:06:47,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:06:47,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:06:47,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:06:47,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:06:47,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:06:47,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:06:47,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:06:47,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:06:47,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:06:47,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:06:47,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:06:47,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:06:47,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:06:47,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:06:47,817 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a71cf57-90b3-4e28-acf4-d667fb8f77b5/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 17:06:47,842 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:06:47,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:06:47,844 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:06:47,844 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 17:06:47,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 17:06:47,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 17:06:47,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:06:47,846 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:06:47,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:06:47,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:06:47,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:06:47,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:06:47,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:06:47,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:06:47,847 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:06:47,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:06:47,848 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:06:47,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:06:47,848 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 17:06:47,849 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 17:06:47,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:06:47,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:06:47,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:06:47,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:06:47,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:06:47,850 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 17:06:47,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:06:47,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:06:47,851 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_9a71cf57-90b3-4e28-acf4-d667fb8f77b5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a71cf57-90b3-4e28-acf4-d667fb8f77b5/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a135e953d64ed0fec81eb2a1e42f4031e3e387fc71d5a5cd2177772a202dc706 [2022-10-17 17:06:48,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:06:48,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:06:48,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:06:48,130 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:06:48,131 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:06:48,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a71cf57-90b3-4e28-acf4-d667fb8f77b5/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/list-properties/list-2.i [2022-10-17 17:06:48,215 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a71cf57-90b3-4e28-acf4-d667fb8f77b5/bin/ukojak-92XMlrwhuB/data/96ac5b25a/7f770be4050a42778d9365d1682e21c9/FLAGf2f46ae8f [2022-10-17 17:06:48,853 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:06:48,854 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a71cf57-90b3-4e28-acf4-d667fb8f77b5/sv-benchmarks/c/list-properties/list-2.i [2022-10-17 17:06:48,877 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a71cf57-90b3-4e28-acf4-d667fb8f77b5/bin/ukojak-92XMlrwhuB/data/96ac5b25a/7f770be4050a42778d9365d1682e21c9/FLAGf2f46ae8f [2022-10-17 17:06:49,144 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a71cf57-90b3-4e28-acf4-d667fb8f77b5/bin/ukojak-92XMlrwhuB/data/96ac5b25a/7f770be4050a42778d9365d1682e21c9 [2022-10-17 17:06:49,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:06:49,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:06:49,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:06:49,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:06:49,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:06:49,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:06:49" (1/1) ... [2022-10-17 17:06:49,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2472493d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:49, skipping insertion in model container [2022-10-17 17:06:49,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:06:49" (1/1) ... [2022-10-17 17:06:49,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:06:49,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:06:49,568 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_9a71cf57-90b3-4e28-acf4-d667fb8f77b5/sv-benchmarks/c/list-properties/list-2.i[23408,23421] [2022-10-17 17:06:49,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:06:49,581 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:06:49,640 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_9a71cf57-90b3-4e28-acf4-d667fb8f77b5/sv-benchmarks/c/list-properties/list-2.i[23408,23421] [2022-10-17 17:06:49,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:06:49,677 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:06:49,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:49 WrapperNode [2022-10-17 17:06:49,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:06:49,679 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:06:49,679 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:06:49,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:06:49,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:49" (1/1) ... [2022-10-17 17:06:49,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:49" (1/1) ... [2022-10-17 17:06:49,728 INFO L138 Inliner]: procedures = 124, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 81 [2022-10-17 17:06:49,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:06:49,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:06:49,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:06:49,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:06:49,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:49" (1/1) ... [2022-10-17 17:06:49,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:49" (1/1) ... [2022-10-17 17:06:49,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:49" (1/1) ... [2022-10-17 17:06:49,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:49" (1/1) ... [2022-10-17 17:06:49,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:49" (1/1) ... [2022-10-17 17:06:49,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:49" (1/1) ... [2022-10-17 17:06:49,758 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:49" (1/1) ... [2022-10-17 17:06:49,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:49" (1/1) ... [2022-10-17 17:06:49,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:06:49,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:06:49,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:06:49,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:06:49,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:49" (1/1) ... [2022-10-17 17:06:49,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:06:49,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a71cf57-90b3-4e28-acf4-d667fb8f77b5/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 17:06:49,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a71cf57-90b3-4e28-acf4-d667fb8f77b5/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 17:06:49,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a71cf57-90b3-4e28-acf4-d667fb8f77b5/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 17:06:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-10-17 17:06:49,846 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-10-17 17:06:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:06:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:06:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 17:06:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:06:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:06:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:06:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:06:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:06:49,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:06:49,963 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:06:49,966 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:06:50,007 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-10-17 17:06:50,168 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:06:50,194 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:06:50,194 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-17 17:06:50,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:06:50 BoogieIcfgContainer [2022-10-17 17:06:50,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:06:50,198 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 17:06:50,198 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 17:06:50,222 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 17:06:50,223 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:06:50" (1/1) ... [2022-10-17 17:06:50,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:06:50,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:50,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2022-10-17 17:06:50,291 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2022-10-17 17:06:50,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 17:06:50,294 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:50,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:50,511 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 17:06:50,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:50,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 33 transitions. [2022-10-17 17:06:50,557 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2022-10-17 17:06:50,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 17:06:50,559 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:50,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:51,239 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 17:06:51,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:51,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 38 states and 55 transitions. [2022-10-17 17:06:51,451 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 55 transitions. [2022-10-17 17:06:51,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-17 17:06:51,453 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:51,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:51,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:51,794 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:06:51,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:51,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 38 states and 53 transitions. [2022-10-17 17:06:51,949 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2022-10-17 17:06:51,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-17 17:06:51,951 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:51,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:51,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:52,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:06:52,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:52,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 38 states and 51 transitions. [2022-10-17 17:06:52,331 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2022-10-17 17:06:52,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 17:06:52,333 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:52,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:53,033 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 17:06:53,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:53,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 49 states and 75 transitions. [2022-10-17 17:06:53,764 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 75 transitions. [2022-10-17 17:06:53,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 17:06:53,768 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:53,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:54,292 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 17:06:55,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:55,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 60 states and 98 transitions. [2022-10-17 17:06:55,304 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 98 transitions. [2022-10-17 17:06:55,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-17 17:06:55,306 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:55,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:55,885 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 17:06:57,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:57,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 70 states and 128 transitions. [2022-10-17 17:06:57,594 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 128 transitions. [2022-10-17 17:06:57,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-17 17:06:57,595 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:57,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:57,880 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 17:06:58,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:58,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 79 states and 148 transitions. [2022-10-17 17:06:58,944 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 148 transitions. [2022-10-17 17:06:58,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 17:06:58,945 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:58,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:59,262 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:06:59,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:59,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 79 states and 143 transitions. [2022-10-17 17:06:59,554 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 143 transitions. [2022-10-17 17:06:59,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 17:06:59,556 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:59,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:59,855 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:00,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:00,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 79 states and 136 transitions. [2022-10-17 17:07:00,165 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 136 transitions. [2022-10-17 17:07:00,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 17:07:00,167 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:00,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:00,982 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 17:07:01,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:01,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 81 states and 142 transitions. [2022-10-17 17:07:01,552 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 142 transitions. [2022-10-17 17:07:01,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 17:07:01,561 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:01,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:02,270 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 17:07:02,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:02,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 83 states and 148 transitions. [2022-10-17 17:07:02,671 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 148 transitions. [2022-10-17 17:07:02,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 17:07:02,672 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:02,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:02,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:03,250 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 17:07:03,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:03,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 85 states and 154 transitions. [2022-10-17 17:07:03,531 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 154 transitions. [2022-10-17 17:07:03,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 17:07:03,532 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:03,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:04,700 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:08,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:08,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 98 states and 183 transitions. [2022-10-17 17:07:08,279 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 183 transitions. [2022-10-17 17:07:08,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 17:07:08,280 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:08,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:08,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:07:08,309 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 17:07:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:07:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:07:08,483 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 17:07:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:07:08,542 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 15 iterations. [2022-10-17 17:07:08,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 05:07:08 ImpRootNode [2022-10-17 17:07:08,605 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 17:07:08,606 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 17:07:08,606 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 17:07:08,606 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 17:07:08,606 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:06:50" (3/4) ... [2022-10-17 17:07:08,608 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 17:07:08,737 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a71cf57-90b3-4e28-acf4-d667fb8f77b5/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 17:07:08,737 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 17:07:08,739 INFO L158 Benchmark]: Toolchain (without parser) took 19589.70ms. Allocated memory was 96.5MB in the beginning and 207.6MB in the end (delta: 111.1MB). Free memory was 59.3MB in the beginning and 82.0MB in the end (delta: -22.7MB). Peak memory consumption was 89.1MB. Max. memory is 16.1GB. [2022-10-17 17:07:08,740 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory is still 50.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:07:08,740 INFO L158 Benchmark]: CACSL2BoogieTranslator took 528.10ms. Allocated memory is still 96.5MB. Free memory was 59.1MB in the beginning and 60.0MB in the end (delta: -849.9kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 17:07:08,741 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.36ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 58.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:07:08,742 INFO L158 Benchmark]: Boogie Preprocessor took 31.68ms. Allocated memory is still 96.5MB. Free memory was 58.1MB in the beginning and 56.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:07:08,743 INFO L158 Benchmark]: RCFGBuilder took 433.38ms. Allocated memory is still 96.5MB. Free memory was 56.5MB in the beginning and 42.5MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-10-17 17:07:08,744 INFO L158 Benchmark]: CodeCheck took 18407.38ms. Allocated memory was 96.5MB in the beginning and 207.6MB in the end (delta: 111.1MB). Free memory was 42.5MB in the beginning and 84.1MB in the end (delta: -41.6MB). Peak memory consumption was 71.0MB. Max. memory is 16.1GB. [2022-10-17 17:07:08,744 INFO L158 Benchmark]: Witness Printer took 131.89ms. Allocated memory is still 207.6MB. Free memory was 84.1MB in the beginning and 82.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:07:08,748 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, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.3s, OverallIterations: 15, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1345 SdHoareTripleChecker+Valid, 6.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 762 mSDsluCounter, 1227 SdHoareTripleChecker+Invalid, 5.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 791 mSDsCounter, 738 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3279 IncrementalHoareTripleChecker+Invalid, 4017 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 738 mSolverCounterUnsat, 436 mSDtfsCounter, 3279 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2746 GetRequests, 2435 SyntacticMatches, 121 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18270 ImplicationChecksByTransitivity, 11.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 305 NumberOfCodeBlocks, 305 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 266 ConstructedInterpolants, 0 QuantifiedInterpolants, 3641 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 10/60 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 - CounterExampleResult [Line: 557]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L532] List a = (List) malloc(sizeof(struct node)); [L533] COND FALSE !(a == 0) VAL [a={19214:0}] [L534] List t; [L535] List p = a; VAL [a={19214:0}, p={19214:0}] [L536] COND TRUE __VERIFIER_nondet_int() [L537] p->h = 1 [L538] t = (List) malloc(sizeof(struct node)) [L539] COND FALSE !(t == 0) VAL [a={19214:0}, p={19214:0}, t={19215:0}] [L540] p->n = t [L541] EXPR p->n [L541] p = p->n [L536] COND FALSE !(__VERIFIER_nondet_int()) [L543] COND TRUE __VERIFIER_nondet_int() [L544] p->h = 2 [L545] t = (List) malloc(sizeof(struct node)) [L546] COND FALSE !(t == 0) VAL [a={19214:0}, p={19215:0}, t={19216:0}] [L547] p->n = t [L548] EXPR p->n [L548] p = p->n [L543] COND FALSE !(__VERIFIER_nondet_int()) [L550] p->h = 3 [L551] p = a VAL [a={19214:0}, p={19214:0}, t={19216:0}] [L552] EXPR p->h VAL [a={19214:0}, p={19214:0}, p->h=1, t={19216:0}] [L552] COND FALSE !(p->h == 2) [L554] EXPR p->h VAL [a={19214:0}, p={19214:0}, p->h=1, t={19216:0}] [L554] COND TRUE p->h == 1 [L555] EXPR p->n [L555] p = p->n [L554] EXPR p->h VAL [a={19214:0}, p={19215:0}, p->h=2, t={19216:0}] [L554] COND FALSE !(p->h == 1) [L556] EXPR p->h VAL [a={19214:0}, p={19215:0}, p->h=2, t={19216:0}] [L556] COND TRUE p->h != 3 [L557] reach_error() VAL [a={19214:0}, p={19215:0}, t={19216:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory is still 50.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 528.10ms. Allocated memory is still 96.5MB. Free memory was 59.1MB in the beginning and 60.0MB in the end (delta: -849.9kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.36ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 58.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.68ms. Allocated memory is still 96.5MB. Free memory was 58.1MB in the beginning and 56.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 433.38ms. Allocated memory is still 96.5MB. Free memory was 56.5MB in the beginning and 42.5MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 18407.38ms. Allocated memory was 96.5MB in the beginning and 207.6MB in the end (delta: 111.1MB). Free memory was 42.5MB in the beginning and 84.1MB in the end (delta: -41.6MB). Peak memory consumption was 71.0MB. Max. memory is 16.1GB. * Witness Printer took 131.89ms. Allocated memory is still 207.6MB. Free memory was 84.1MB in the beginning and 82.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 17:07:08,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a71cf57-90b3-4e28-acf4-d667fb8f77b5/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE