./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-15/cstrcmp_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d156048b-ef5b-4cee-9450-60ddc5f89a1e/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d156048b-ef5b-4cee-9450-60ddc5f89a1e/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d156048b-ef5b-4cee-9450-60ddc5f89a1e/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d156048b-ef5b-4cee-9450-60ddc5f89a1e/bin/ukojak-pZX7IvK2PQ/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-15/cstrcmp_reverse_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d156048b-ef5b-4cee-9450-60ddc5f89a1e/bin/ukojak-pZX7IvK2PQ/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d156048b-ef5b-4cee-9450-60ddc5f89a1e/bin/ukojak-pZX7IvK2PQ --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 64bit --witnessprinter.graph.data.programhash 956a7be0aa4123ddc345c58470e6c6f0d648bcd1784c1fbfd2df8e05f06ac7cd --- 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-6b4ec56 [2022-11-20 18:12:25,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 18:12:25,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 18:12:25,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 18:12:25,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 18:12:25,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 18:12:25,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 18:12:25,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 18:12:25,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 18:12:25,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 18:12:25,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 18:12:25,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 18:12:25,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 18:12:25,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 18:12:25,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 18:12:25,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 18:12:25,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 18:12:25,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 18:12:25,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 18:12:25,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 18:12:25,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 18:12:25,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 18:12:25,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 18:12:25,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 18:12:25,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 18:12:25,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 18:12:25,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 18:12:25,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 18:12:25,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 18:12:25,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 18:12:25,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 18:12:25,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 18:12:25,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 18:12:25,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 18:12:25,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 18:12:25,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 18:12:25,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 18:12:25,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 18:12:25,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 18:12:25,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 18:12:25,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 18:12:25,807 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d156048b-ef5b-4cee-9450-60ddc5f89a1e/bin/ukojak-pZX7IvK2PQ/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2022-11-20 18:12:25,839 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 18:12:25,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 18:12:25,841 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 18:12:25,841 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 18:12:25,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 18:12:25,842 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 18:12:25,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 18:12:25,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 18:12:25,852 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 18:12:25,852 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 18:12:25,854 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 18:12:25,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 18:12:25,854 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 18:12:25,854 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 18:12:25,855 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 18:12:25,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 18:12:25,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:12:25,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 18:12:25,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 18:12:25,856 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 18:12:25,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 18:12:25,856 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_d156048b-ef5b-4cee-9450-60ddc5f89a1e/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d156048b-ef5b-4cee-9450-60ddc5f89a1e/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 956a7be0aa4123ddc345c58470e6c6f0d648bcd1784c1fbfd2df8e05f06ac7cd [2022-11-20 18:12:26,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 18:12:26,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 18:12:26,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 18:12:26,197 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 18:12:26,198 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 18:12:26,199 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d156048b-ef5b-4cee-9450-60ddc5f89a1e/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-15/cstrcmp_reverse_alloca.i [2022-11-20 18:12:29,340 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 18:12:29,570 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 18:12:29,571 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d156048b-ef5b-4cee-9450-60ddc5f89a1e/sv-benchmarks/c/termination-15/cstrcmp_reverse_alloca.i [2022-11-20 18:12:29,580 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d156048b-ef5b-4cee-9450-60ddc5f89a1e/bin/ukojak-pZX7IvK2PQ/data/5b2492eeb/2017123b93e7409a847bc4adca422a33/FLAG7345c6930 [2022-11-20 18:12:29,595 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d156048b-ef5b-4cee-9450-60ddc5f89a1e/bin/ukojak-pZX7IvK2PQ/data/5b2492eeb/2017123b93e7409a847bc4adca422a33 [2022-11-20 18:12:29,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 18:12:29,604 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 18:12:29,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 18:12:29,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 18:12:29,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 18:12:29,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:12:29" (1/1) ... [2022-11-20 18:12:29,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32060217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:29, skipping insertion in model container [2022-11-20 18:12:29,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:12:29" (1/1) ... [2022-11-20 18:12:29,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 18:12:29,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:12:30,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:12:30,027 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 18:12:30,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:12:30,137 INFO L208 MainTranslator]: Completed translation [2022-11-20 18:12:30,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:30 WrapperNode [2022-11-20 18:12:30,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 18:12:30,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 18:12:30,141 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 18:12:30,141 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 18:12:30,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:30" (1/1) ... [2022-11-20 18:12:30,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:30" (1/1) ... [2022-11-20 18:12:30,207 INFO L138 Inliner]: procedures = 152, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2022-11-20 18:12:30,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 18:12:30,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 18:12:30,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 18:12:30,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 18:12:30,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:30" (1/1) ... [2022-11-20 18:12:30,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:30" (1/1) ... [2022-11-20 18:12:30,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:30" (1/1) ... [2022-11-20 18:12:30,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:30" (1/1) ... [2022-11-20 18:12:30,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:30" (1/1) ... [2022-11-20 18:12:30,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:30" (1/1) ... [2022-11-20 18:12:30,251 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:30" (1/1) ... [2022-11-20 18:12:30,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:30" (1/1) ... [2022-11-20 18:12:30,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 18:12:30,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 18:12:30,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 18:12:30,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 18:12:30,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:12:30" (1/1) ... [2022-11-20 18:12:30,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:12:30,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d156048b-ef5b-4cee-9450-60ddc5f89a1e/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 18:12:30,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d156048b-ef5b-4cee-9450-60ddc5f89a1e/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 18:12:30,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d156048b-ef5b-4cee-9450-60ddc5f89a1e/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 18:12:30,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 18:12:30,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 18:12:30,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 18:12:30,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 18:12:30,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 18:12:30,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 18:12:30,503 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 18:12:30,505 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 18:12:30,807 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 18:12:30,855 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 18:12:30,855 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 18:12:30,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:12:30 BoogieIcfgContainer [2022-11-20 18:12:30,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 18:12:30,859 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 18:12:30,859 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 18:12:30,870 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 18:12:30,870 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:12:30" (1/1) ... [2022-11-20 18:12:30,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:12:30,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:30,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 27 states and 29 transitions. [2022-11-20 18:12:30,939 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-11-20 18:12:30,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-20 18:12:30,942 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:30,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:31,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:31,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:31,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:31,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2022-11-20 18:12:31,413 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-11-20 18:12:31,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-20 18:12:31,413 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:31,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:31,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:31,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:31,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 25 states and 27 transitions. [2022-11-20 18:12:31,768 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-11-20 18:12:31,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 18:12:31,770 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:31,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:31,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:31,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:31,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:31,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2022-11-20 18:12:31,983 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-11-20 18:12:31,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 18:12:31,983 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:31,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:32,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:32,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:32,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 23 states and 25 transitions. [2022-11-20 18:12:32,620 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-11-20 18:12:32,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 18:12:32,621 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:32,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:32,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:32,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:32,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:32,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2022-11-20 18:12:32,891 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-11-20 18:12:32,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 18:12:32,891 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:32,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:33,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:34,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:34,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 25 states and 27 transitions. [2022-11-20 18:12:34,254 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-11-20 18:12:34,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 18:12:34,255 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:34,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:34,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:34,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:34,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:34,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2022-11-20 18:12:34,292 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-11-20 18:12:34,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 18:12:34,292 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:34,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:34,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:34,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:34,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 23 states and 25 transitions. [2022-11-20 18:12:34,382 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-11-20 18:12:34,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 18:12:34,383 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:34,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:34,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:34,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:34,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 27 states and 31 transitions. [2022-11-20 18:12:34,740 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-11-20 18:12:34,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 18:12:34,740 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:34,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:35,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:36,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:36,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 31 states and 36 transitions. [2022-11-20 18:12:36,888 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2022-11-20 18:12:36,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 18:12:36,888 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:36,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:36,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:37,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:37,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 32 states and 37 transitions. [2022-11-20 18:12:37,087 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2022-11-20 18:12:37,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 18:12:37,087 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:37,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:37,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:37,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:37,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 34 states and 40 transitions. [2022-11-20 18:12:37,324 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2022-11-20 18:12:37,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 18:12:37,324 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:37,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:37,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:37,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:37,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 36 states and 42 transitions. [2022-11-20 18:12:37,652 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2022-11-20 18:12:37,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 18:12:37,652 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:37,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:37,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:37,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:37,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 39 states and 45 transitions. [2022-11-20 18:12:37,956 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2022-11-20 18:12:37,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 18:12:37,957 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:37,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:37,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:38,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:39,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:39,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 42 states and 47 transitions. [2022-11-20 18:12:39,678 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-11-20 18:12:39,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 18:12:39,680 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:39,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:39,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:40,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:40,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 40 states and 44 transitions. [2022-11-20 18:12:40,076 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2022-11-20 18:12:40,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 18:12:40,076 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:40,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:40,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:40,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:40,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 34 states and 37 transitions. [2022-11-20 18:12:40,529 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-11-20 18:12:40,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 18:12:40,529 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:40,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:41,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:44,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:44,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 39 states and 47 transitions. [2022-11-20 18:12:44,880 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2022-11-20 18:12:44,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 18:12:44,881 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:44,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:44,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:45,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:49,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:49,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 45 states and 58 transitions. [2022-11-20 18:12:49,993 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 58 transitions. [2022-11-20 18:12:49,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 18:12:49,993 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:49,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:50,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:51,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:51,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 47 states and 60 transitions. [2022-11-20 18:12:51,165 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 60 transitions. [2022-11-20 18:12:51,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 18:12:51,165 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:51,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:52,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:57,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:57,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 52 states and 73 transitions. [2022-11-20 18:12:57,410 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 73 transitions. [2022-11-20 18:12:57,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 18:12:57,410 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:57,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:57,448 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:12:58,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:58,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 52 states and 72 transitions. [2022-11-20 18:12:58,039 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 72 transitions. [2022-11-20 18:12:58,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 18:12:58,040 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:58,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:12:58,237 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 18:12:59,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:12:59,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 53 states and 73 transitions. [2022-11-20 18:12:59,014 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 73 transitions. [2022-11-20 18:12:59,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 18:12:59,021 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:12:59,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:12:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:13:00,406 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:13:06,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:13:06,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 58 states and 84 transitions. [2022-11-20 18:13:06,253 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2022-11-20 18:13:06,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 18:13:06,253 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:13:06,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:13:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:13:06,302 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 18:13:06,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:13:06,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 58 states and 83 transitions. [2022-11-20 18:13:06,990 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 83 transitions. [2022-11-20 18:13:06,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 18:13:06,991 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:13:06,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:13:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:13:09,071 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:13:16,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:13:16,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2022-11-20 18:13:16,262 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-20 18:13:16,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 18:13:16,262 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 27 iterations. [2022-11-20 18:13:16,270 INFO L754 CodeCheckObserver]: All specifications hold 15 specifications checked. All of them hold [2022-11-20 18:13:16,608 INFO L560 CodeCheckObserver]: Invariant with dag size 40 [2022-11-20 18:13:16,637 INFO L560 CodeCheckObserver]: Invariant with dag size 25 [2022-11-20 18:13:16,638 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2022-11-20 18:13:16,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 06:13:16 ImpRootNode [2022-11-20 18:13:16,639 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 18:13:16,640 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 18:13:16,640 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 18:13:16,640 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 18:13:16,641 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:12:30" (3/4) ... [2022-11-20 18:13:16,648 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 18:13:16,680 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-20 18:13:16,681 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-20 18:13:16,681 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 18:13:16,681 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 18:13:16,711 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((\valid[__builtin_alloca(length2 * sizeof(char)) := \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca(length2 * sizeof(char))]][__builtin_alloca(length1 * sizeof(char)) := \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca(length1 * sizeof(char))]] == \old(unknown-main_\old_#valid#1-unknown) && 0 <= s1) && 0 <= s2) && !(__builtin_alloca(length1 * sizeof(char)) == __builtin_alloca(length2 * sizeof(char)))) && unknown-#memory_int-unknown[s1][0] == 0) && s1 + 1 <= unknown-#length-unknown[s1]) && \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca(length2 * sizeof(char))] == 0) && \valid[s1] == 1) && unknown-#memory_int-unknown[s2][0] == 0) && s2 + 1 <= unknown-#length-unknown[s2]) && \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca(length1 * sizeof(char))] == 0) && \valid[s2] == 1 [2022-11-20 18:13:16,713 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\valid[__builtin_alloca(length2 * sizeof(char)) := \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca(length2 * sizeof(char))]][__builtin_alloca(length1 * sizeof(char)) := \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca(length1 * sizeof(char))]] == \old(unknown-main_\old_#valid#1-unknown) && 0 <= s2) && !(__builtin_alloca(length1 * sizeof(char)) == __builtin_alloca(length2 * sizeof(char)))) && \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca(length2 * sizeof(char))] == 0) && s2 + 1 <= unknown-#length-unknown[s2]) && \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca(length1 * sizeof(char))] == 0) && \valid[s2] == 1 [2022-11-20 18:13:16,713 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid#1-unknown) == \valid [2022-11-20 18:13:16,746 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d156048b-ef5b-4cee-9450-60ddc5f89a1e/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 18:13:16,747 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 18:13:16,747 INFO L158 Benchmark]: Toolchain (without parser) took 47143.81ms. Allocated memory was 192.9MB in the beginning and 413.1MB in the end (delta: 220.2MB). Free memory was 152.7MB in the beginning and 343.9MB in the end (delta: -191.2MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2022-11-20 18:13:16,748 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 146.8MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:13:16,748 INFO L158 Benchmark]: CACSL2BoogieTranslator took 534.05ms. Allocated memory is still 192.9MB. Free memory was 152.1MB in the beginning and 134.5MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 18:13:16,749 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.79ms. Allocated memory is still 192.9MB. Free memory was 134.5MB in the beginning and 132.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:13:16,749 INFO L158 Benchmark]: Boogie Preprocessor took 52.15ms. Allocated memory is still 192.9MB. Free memory was 132.6MB in the beginning and 131.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:13:16,750 INFO L158 Benchmark]: RCFGBuilder took 596.59ms. Allocated memory is still 192.9MB. Free memory was 131.1MB in the beginning and 113.7MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 18:13:16,751 INFO L158 Benchmark]: CodeCheck took 45780.72ms. Allocated memory was 192.9MB in the beginning and 413.1MB in the end (delta: 220.2MB). Free memory was 113.7MB in the beginning and 347.0MB in the end (delta: -233.3MB). Peak memory consumption was 205.8MB. Max. memory is 16.1GB. [2022-11-20 18:13:16,754 INFO L158 Benchmark]: Witness Printer took 106.75ms. Allocated memory is still 413.1MB. Free memory was 347.0MB in the beginning and 343.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:13:16,759 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, 27 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 45.4s, OverallIterations: 27, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1395 SdHoareTripleChecker+Valid, 13.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1308 mSDsluCounter, 444 SdHoareTripleChecker+Invalid, 10.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 256 mSDsCounter, 1254 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5002 IncrementalHoareTripleChecker+Invalid, 6256 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1254 mSolverCounterUnsat, 188 mSDtfsCounter, 5002 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1968 GetRequests, 1619 SyntacticMatches, 47 SemanticMatches, 302 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38580 ImplicationChecksByTransitivity, 39.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.7s InterpolantComputationTime, 214 NumberOfCodeBlocks, 214 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 188 ConstructedInterpolants, 0 QuantifiedInterpolants, 2189 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 22 PerfectInterpolantSequences, 22/47 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: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 375]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - InvariantResult [Line: 367]: Loop Invariant Derived loop invariant: ((((((((((\valid[__builtin_alloca(length2 * sizeof(char)) := \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca(length2 * sizeof(char))]][__builtin_alloca(length1 * sizeof(char)) := \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca(length1 * sizeof(char))]] == \old(unknown-main_\old_#valid#1-unknown) && 0 <= s1) && 0 <= s2) && !(__builtin_alloca(length1 * sizeof(char)) == __builtin_alloca(length2 * sizeof(char)))) && unknown-#memory_int-unknown[s1][0] == 0) && s1 + 1 <= unknown-#length-unknown[s1]) && \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca(length2 * sizeof(char))] == 0) && \valid[s1] == 1) && unknown-#memory_int-unknown[s2][0] == 0) && s2 + 1 <= unknown-#length-unknown[s2]) && \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca(length1 * sizeof(char))] == 0) && \valid[s2] == 1 - InvariantResult [Line: 372]: Loop Invariant Derived loop invariant: (((((\valid[__builtin_alloca(length2 * sizeof(char)) := \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca(length2 * sizeof(char))]][__builtin_alloca(length1 * sizeof(char)) := \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca(length1 * sizeof(char))]] == \old(unknown-main_\old_#valid#1-unknown) && 0 <= s2) && !(__builtin_alloca(length1 * sizeof(char)) == __builtin_alloca(length2 * sizeof(char)))) && \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca(length2 * sizeof(char))] == 0) && s2 + 1 <= unknown-#length-unknown[s2]) && \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca(length1 * sizeof(char))] == 0) && \valid[s2] == 1 - InvariantResult [Line: 375]: 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 0.27ms. Allocated memory is still 146.8MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 534.05ms. Allocated memory is still 192.9MB. Free memory was 152.1MB in the beginning and 134.5MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.79ms. Allocated memory is still 192.9MB. Free memory was 134.5MB in the beginning and 132.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.15ms. Allocated memory is still 192.9MB. Free memory was 132.6MB in the beginning and 131.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 596.59ms. Allocated memory is still 192.9MB. Free memory was 131.1MB in the beginning and 113.7MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 45780.72ms. Allocated memory was 192.9MB in the beginning and 413.1MB in the end (delta: 220.2MB). Free memory was 113.7MB in the beginning and 347.0MB in the end (delta: -233.3MB). Peak memory consumption was 205.8MB. Max. memory is 16.1GB. * Witness Printer took 106.75ms. Allocated memory is still 413.1MB. Free memory was 347.0MB in the beginning and 343.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-20 18:13:16,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d156048b-ef5b-4cee-9450-60ddc5f89a1e/bin/ukojak-pZX7IvK2PQ/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