./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0158_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad4326e-0545-497a-8f13-8882ea3620cb/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad4326e-0545-497a-8f13-8882ea3620cb/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad4326e-0545-497a-8f13-8882ea3620cb/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad4326e-0545-497a-8f13-8882ea3620cb/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad4326e-0545-497a-8f13-8882ea3620cb/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad4326e-0545-497a-8f13-8882ea3620cb/bin/ukojak-CwSLpZB5Qu --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ed9ad97c04e31259eb9462964e1ee9692abc78f6814573ccfff6d31784ab3b25 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:41:24,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:41:24,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:41:24,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:41:24,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:41:24,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:41:24,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:41:24,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:41:24,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:41:24,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:41:24,918 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:41:24,920 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:41:24,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:41:24,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:41:24,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:41:24,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:41:24,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:41:24,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:41:24,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:41:24,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:41:24,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:41:24,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:41:24,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:41:24,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:41:24,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:41:24,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:41:24,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:41:24,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:41:24,956 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:41:24,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:41:24,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:41:24,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:41:24,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:41:24,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:41:24,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:41:24,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:41:24,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:41:24,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:41:24,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:41:24,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:41:24,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:41:24,966 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad4326e-0545-497a-8f13-8882ea3620cb/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 15:41:24,988 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:41:24,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:41:24,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:41:24,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:41:24,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:41:24,990 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:41:24,990 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:41:24,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:41:24,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:41:24,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:41:24,991 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:41:24,991 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:41:24,992 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:41:24,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:41:24,992 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:41:24,992 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:41:24,992 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:41:24,993 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:41:24,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:41:24,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:41:24,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:41:24,994 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:41:24,994 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:41:24,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:41:24,994 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_0ad4326e-0545-497a-8f13-8882ea3620cb/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad4326e-0545-497a-8f13-8882ea3620cb/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed9ad97c04e31259eb9462964e1ee9692abc78f6814573ccfff6d31784ab3b25 [2021-11-23 15:41:25,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:41:25,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:41:25,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:41:25,306 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:41:25,306 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:41:25,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad4326e-0545-497a-8f13-8882ea3620cb/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-ext-properties/test-0158_1-1.i [2021-11-23 15:41:25,371 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad4326e-0545-497a-8f13-8882ea3620cb/bin/ukojak-CwSLpZB5Qu/data/cb16653ba/8e1919df6d024a698f0cfdf3947a8a3b/FLAGd3724eb95 [2021-11-23 15:41:25,871 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:41:25,877 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad4326e-0545-497a-8f13-8882ea3620cb/sv-benchmarks/c/list-ext-properties/test-0158_1-1.i [2021-11-23 15:41:25,893 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad4326e-0545-497a-8f13-8882ea3620cb/bin/ukojak-CwSLpZB5Qu/data/cb16653ba/8e1919df6d024a698f0cfdf3947a8a3b/FLAGd3724eb95 [2021-11-23 15:41:26,185 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad4326e-0545-497a-8f13-8882ea3620cb/bin/ukojak-CwSLpZB5Qu/data/cb16653ba/8e1919df6d024a698f0cfdf3947a8a3b [2021-11-23 15:41:26,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:41:26,188 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:41:26,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:41:26,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:41:26,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:41:26,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:41:26" (1/1) ... [2021-11-23 15:41:26,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3294a756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:26, skipping insertion in model container [2021-11-23 15:41:26,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:41:26" (1/1) ... [2021-11-23 15:41:26,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:41:26,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:41:26,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:41:26,598 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:41:26,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:41:26,683 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:41:26,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:26 WrapperNode [2021-11-23 15:41:26,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:41:26,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:41:26,685 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:41:26,685 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:41:26,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:26" (1/1) ... [2021-11-23 15:41:26,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:26" (1/1) ... [2021-11-23 15:41:26,725 INFO L137 Inliner]: procedures = 124, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2021-11-23 15:41:26,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:41:26,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:41:26,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:41:26,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:41:26,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:26" (1/1) ... [2021-11-23 15:41:26,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:26" (1/1) ... [2021-11-23 15:41:26,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:26" (1/1) ... [2021-11-23 15:41:26,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:26" (1/1) ... [2021-11-23 15:41:26,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:26" (1/1) ... [2021-11-23 15:41:26,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:26" (1/1) ... [2021-11-23 15:41:26,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:26" (1/1) ... [2021-11-23 15:41:26,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:41:26,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:41:26,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:41:26,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:41:26,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:26" (1/1) ... [2021-11-23 15:41:26,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:41:26,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad4326e-0545-497a-8f13-8882ea3620cb/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:41:26,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad4326e-0545-497a-8f13-8882ea3620cb/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:41:26,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad4326e-0545-497a-8f13-8882ea3620cb/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:41:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:41:26,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:41:26,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:41:26,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:41:26,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:41:26,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:41:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:41:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:41:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:41:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:41:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:41:26,989 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:41:26,990 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:41:27,192 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:41:27,212 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 15:41:27,212 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 15:41:27,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:41:27 BoogieIcfgContainer [2021-11-23 15:41:27,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 15:41:27,216 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 15:41:27,216 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 15:41:27,229 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 15:41:27,229 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:41:27" (1/1) ... [2021-11-23 15:41:27,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 15:41:27,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:27,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 30 states and 31 transitions. [2021-11-23 15:41:27,295 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2021-11-23 15:41:27,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-23 15:41:27,297 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:27,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:27,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:27,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:27,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 29 states and 30 transitions. [2021-11-23 15:41:27,487 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2021-11-23 15:41:27,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-23 15:41:27,487 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:27,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:27,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:27,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:27,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 28 states and 29 transitions. [2021-11-23 15:41:27,638 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2021-11-23 15:41:27,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 15:41:27,638 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:27,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:27,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:27,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:27,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 27 states and 28 transitions. [2021-11-23 15:41:27,689 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2021-11-23 15:41:27,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 15:41:27,690 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:27,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:27,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:28,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:28,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 26 states and 27 transitions. [2021-11-23 15:41:28,038 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2021-11-23 15:41:28,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 15:41:28,038 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:28,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:28,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:28,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:28,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 25 states and 26 transitions. [2021-11-23 15:41:28,092 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2021-11-23 15:41:28,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 15:41:28,092 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:28,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:28,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:28,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:28,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 24 states and 25 transitions. [2021-11-23 15:41:28,193 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2021-11-23 15:41:28,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 15:41:28,195 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:28,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:28,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:28,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:28,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 23 states and 24 transitions. [2021-11-23 15:41:28,296 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2021-11-23 15:41:28,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 15:41:28,296 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:28,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:28,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:28,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:28,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 22 states and 23 transitions. [2021-11-23 15:41:28,422 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-11-23 15:41:28,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 15:41:28,423 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:28,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:28,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:28,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:28,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 24 states and 25 transitions. [2021-11-23 15:41:28,673 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2021-11-23 15:41:28,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 15:41:28,673 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:28,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:28,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:28,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:28,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 25 states and 27 transitions. [2021-11-23 15:41:28,840 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2021-11-23 15:41:28,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 15:41:28,841 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:28,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:28,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:29,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:29,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 26 states and 29 transitions. [2021-11-23 15:41:29,282 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2021-11-23 15:41:29,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 15:41:29,285 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:29,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:29,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:29,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:29,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 23 states and 24 transitions. [2021-11-23 15:41:29,693 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2021-11-23 15:41:29,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 15:41:29,693 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:29,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:29,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:29,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:29,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-11-23 15:41:29,826 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-11-23 15:41:29,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 15:41:29,826 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:29,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:29,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:29,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:30,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:30,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-11-23 15:41:30,039 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-11-23 15:41:30,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 15:41:30,039 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:30,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:30,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:31,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:31,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-11-23 15:41:31,237 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-11-23 15:41:31,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 15:41:31,238 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:31,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:31,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:31,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:31,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-11-23 15:41:31,635 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-11-23 15:41:31,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 15:41:31,635 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:31,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:31,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:33,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:33,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-11-23 15:41:33,450 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-11-23 15:41:33,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 15:41:33,451 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:33,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:33,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:34,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:34,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-11-23 15:41:34,073 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-11-23 15:41:34,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 15:41:34,074 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:34,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:34,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:36,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:36,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 21 states and 22 transitions. [2021-11-23 15:41:36,827 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-11-23 15:41:36,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 15:41:36,828 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:36,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:36,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:37,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:37,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-11-23 15:41:37,522 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-11-23 15:41:37,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 15:41:37,523 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:37,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:38,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:41,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:41,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 21 states and 22 transitions. [2021-11-23 15:41:41,577 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-11-23 15:41:41,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 15:41:41,578 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:41:41,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:41:41,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:41:41,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:41:42,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:41:42,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-11-23 15:41:42,655 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-11-23 15:41:42,655 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 15:41:42,655 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 23 iterations. [2021-11-23 15:41:42,664 INFO L754 CodeCheckObserver]: All specifications hold 16 specifications checked. All of them hold [2021-11-23 15:41:42,817 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2021-11-23 15:41:42,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 03:41:42 ImpRootNode [2021-11-23 15:41:42,827 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 15:41:42,828 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 15:41:42,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 15:41:42,828 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 15:41:42,829 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:41:27" (3/4) ... [2021-11-23 15:41:42,832 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 15:41:42,841 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-23 15:41:42,842 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-23 15:41:42,842 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 15:41:42,842 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 15:41:42,866 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid#1-unknown) == \valid [2021-11-23 15:41:42,893 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad4326e-0545-497a-8f13-8882ea3620cb/bin/ukojak-CwSLpZB5Qu/witness.graphml [2021-11-23 15:41:42,893 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 15:41:42,894 INFO L158 Benchmark]: Toolchain (without parser) took 16705.80ms. Allocated memory was 130.0MB in the beginning and 251.7MB in the end (delta: 121.6MB). Free memory was 88.8MB in the beginning and 136.2MB in the end (delta: -47.4MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2021-11-23 15:41:42,895 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 130.0MB. Free memory is still 106.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:41:42,895 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.54ms. Allocated memory is still 130.0MB. Free memory was 88.6MB in the beginning and 97.4MB in the end (delta: -8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:41:42,896 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.65ms. Allocated memory is still 130.0MB. Free memory was 97.4MB in the beginning and 95.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:41:42,896 INFO L158 Benchmark]: Boogie Preprocessor took 24.25ms. Allocated memory is still 130.0MB. Free memory was 95.5MB in the beginning and 94.6MB in the end (delta: 892.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:41:42,897 INFO L158 Benchmark]: RCFGBuilder took 464.18ms. Allocated memory is still 130.0MB. Free memory was 94.2MB in the beginning and 82.4MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 15:41:42,897 INFO L158 Benchmark]: CodeCheck took 15611.45ms. Allocated memory was 130.0MB in the beginning and 251.7MB in the end (delta: 121.6MB). Free memory was 82.4MB in the beginning and 139.3MB in the end (delta: -56.9MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2021-11-23 15:41:42,898 INFO L158 Benchmark]: Witness Printer took 65.67ms. Allocated memory is still 251.7MB. Free memory was 139.3MB in the beginning and 136.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 15:41:42,901 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 1 procedures, 30 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 15.4s, OverallIterations: 23, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 666 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 577 mSDsluCounter, 516 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 356 mSDsCounter, 908 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2471 IncrementalHoareTripleChecker+Invalid, 3379 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 908 mSolverCounterUnsat, 160 mSDtfsCounter, 2471 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1241 GetRequests, 992 SyntacticMatches, 25 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19068 ImplicationChecksByTransitivity, 13.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 1019 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 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: 534]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 534]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 536]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 536]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 538]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 538]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 541]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 541]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 543]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 543]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 524]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 524]: Loop Invariant Derived loop invariant: \old(unknown-main_\old_#valid#1-unknown) == \valid * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 130.0MB. Free memory is still 106.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.54ms. Allocated memory is still 130.0MB. Free memory was 88.6MB in the beginning and 97.4MB in the end (delta: -8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.65ms. Allocated memory is still 130.0MB. Free memory was 97.4MB in the beginning and 95.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.25ms. Allocated memory is still 130.0MB. Free memory was 95.5MB in the beginning and 94.6MB in the end (delta: 892.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 464.18ms. Allocated memory is still 130.0MB. Free memory was 94.2MB in the beginning and 82.4MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 15611.45ms. Allocated memory was 130.0MB in the beginning and 251.7MB in the end (delta: 121.6MB). Free memory was 82.4MB in the beginning and 139.3MB in the end (delta: -56.9MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Witness Printer took 65.67ms. Allocated memory is still 251.7MB. Free memory was 139.3MB in the beginning and 136.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 15:41:42,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad4326e-0545-497a-8f13-8882ea3620cb/bin/ukojak-CwSLpZB5Qu/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