./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 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_c32d64af-9dbe-4c64-8421-15ae54b4950c/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32d64af-9dbe-4c64-8421-15ae54b4950c/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32d64af-9dbe-4c64-8421-15ae54b4950c/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32d64af-9dbe-4c64-8421-15ae54b4950c/bin/ukojak-rkRKPMF4O4/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32d64af-9dbe-4c64-8421-15ae54b4950c/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32d64af-9dbe-4c64-8421-15ae54b4950c/bin/ukojak-rkRKPMF4O4 --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 e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 --- 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-2329fc7 [2022-12-14 18:58:58,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 18:58:58,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 18:58:58,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 18:58:58,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 18:58:58,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 18:58:58,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 18:58:58,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 18:58:58,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 18:58:58,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 18:58:58,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 18:58:58,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 18:58:58,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 18:58:58,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 18:58:58,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 18:58:58,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 18:58:58,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 18:58:58,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 18:58:58,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 18:58:58,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 18:58:58,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 18:58:58,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 18:58:58,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 18:58:58,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 18:58:58,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 18:58:58,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 18:58:58,660 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 18:58:58,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 18:58:58,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 18:58:58,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 18:58:58,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 18:58:58,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 18:58:58,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 18:58:58,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 18:58:58,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 18:58:58,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 18:58:58,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 18:58:58,667 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 18:58:58,667 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 18:58:58,668 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 18:58:58,669 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 18:58:58,670 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32d64af-9dbe-4c64-8421-15ae54b4950c/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2022-12-14 18:58:58,692 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 18:58:58,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 18:58:58,694 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 18:58:58,694 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 18:58:58,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 18:58:58,694 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 18:58:58,694 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 18:58:58,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 18:58:58,695 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 18:58:58,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 18:58:58,695 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 18:58:58,695 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 18:58:58,695 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 18:58:58,695 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 18:58:58,696 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 18:58:58,696 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 18:58:58,696 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 18:58:58,696 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 18:58:58,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 18:58:58,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 18:58:58,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 18:58:58,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 18:58:58,697 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 18:58:58,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 18:58:58,697 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_c32d64af-9dbe-4c64-8421-15ae54b4950c/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32d64af-9dbe-4c64-8421-15ae54b4950c/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 [2022-12-14 18:58:58,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 18:58:58,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 18:58:58,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 18:58:58,876 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 18:58:58,876 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 18:58:58,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32d64af-9dbe-4c64-8421-15ae54b4950c/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2022-12-14 18:59:01,434 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 18:59:01,585 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 18:59:01,585 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32d64af-9dbe-4c64-8421-15ae54b4950c/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2022-12-14 18:59:01,589 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32d64af-9dbe-4c64-8421-15ae54b4950c/bin/ukojak-rkRKPMF4O4/data/fa91f09f8/64a5e681ce9b4999a793013fb6f6952c/FLAGbbd52c047 [2022-12-14 18:59:01,600 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32d64af-9dbe-4c64-8421-15ae54b4950c/bin/ukojak-rkRKPMF4O4/data/fa91f09f8/64a5e681ce9b4999a793013fb6f6952c [2022-12-14 18:59:01,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 18:59:01,604 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 18:59:01,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 18:59:01,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 18:59:01,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 18:59:01,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:59:01" (1/1) ... [2022-12-14 18:59:01,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dfae274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:59:01, skipping insertion in model container [2022-12-14 18:59:01,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:59:01" (1/1) ... [2022-12-14 18:59:01,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 18:59:01,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 18:59:01,765 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32d64af-9dbe-4c64-8421-15ae54b4950c/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c[439,452] [2022-12-14 18:59:01,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 18:59:01,781 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 18:59:01,793 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32d64af-9dbe-4c64-8421-15ae54b4950c/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c[439,452] [2022-12-14 18:59:01,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 18:59:01,809 INFO L208 MainTranslator]: Completed translation [2022-12-14 18:59:01,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:59:01 WrapperNode [2022-12-14 18:59:01,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 18:59:01,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 18:59:01,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 18:59:01,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 18:59:01,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:59:01" (1/1) ... [2022-12-14 18:59:01,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:59:01" (1/1) ... [2022-12-14 18:59:01,831 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-12-14 18:59:01,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 18:59:01,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 18:59:01,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 18:59:01,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 18:59:01,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:59:01" (1/1) ... [2022-12-14 18:59:01,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:59:01" (1/1) ... [2022-12-14 18:59:01,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:59:01" (1/1) ... [2022-12-14 18:59:01,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:59:01" (1/1) ... [2022-12-14 18:59:01,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:59:01" (1/1) ... [2022-12-14 18:59:01,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:59:01" (1/1) ... [2022-12-14 18:59:01,844 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:59:01" (1/1) ... [2022-12-14 18:59:01,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:59:01" (1/1) ... [2022-12-14 18:59:01,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 18:59:01,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 18:59:01,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 18:59:01,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 18:59:01,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:59:01" (1/1) ... [2022-12-14 18:59:01,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 18:59:01,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32d64af-9dbe-4c64-8421-15ae54b4950c/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 18:59:01,869 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32d64af-9dbe-4c64-8421-15ae54b4950c/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 18:59:01,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32d64af-9dbe-4c64-8421-15ae54b4950c/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 18:59:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 18:59:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-12-14 18:59:01,903 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-12-14 18:59:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 18:59:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 18:59:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2022-12-14 18:59:01,903 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2022-12-14 18:59:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 18:59:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 18:59:01,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 18:59:01,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 18:59:01,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 18:59:01,969 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 18:59:01,971 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 18:59:02,087 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 18:59:02,105 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 18:59:02,105 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 18:59:02,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:59:02 BoogieIcfgContainer [2022-12-14 18:59:02,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 18:59:02,108 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 18:59:02,108 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 18:59:02,115 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 18:59:02,115 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:59:02" (1/1) ... [2022-12-14 18:59:02,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 18:59:02,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:02,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 33 states and 35 transitions. [2022-12-14 18:59:02,163 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2022-12-14 18:59:02,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 18:59:02,164 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:02,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:02,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:59:02,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:02,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 32 states and 34 transitions. [2022-12-14 18:59:02,327 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2022-12-14 18:59:02,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 18:59:02,327 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:02,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:02,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:59:02,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:02,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 31 states and 33 transitions. [2022-12-14 18:59:02,481 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2022-12-14 18:59:02,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 18:59:02,482 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:02,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:02,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:59:02,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:02,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 33 states and 36 transitions. [2022-12-14 18:59:02,589 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-12-14 18:59:02,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 18:59:02,589 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:02,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:02,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:59:02,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:02,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 35 states and 39 transitions. [2022-12-14 18:59:02,889 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2022-12-14 18:59:02,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 18:59:02,889 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:02,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:02,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:59:02,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:02,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 34 states and 38 transitions. [2022-12-14 18:59:02,928 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2022-12-14 18:59:02,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 18:59:02,928 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:02,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:03,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:59:03,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:03,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 37 states and 43 transitions. [2022-12-14 18:59:03,576 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2022-12-14 18:59:03,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 18:59:03,576 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:03,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:03,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:59:03,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:03,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 36 states and 42 transitions. [2022-12-14 18:59:03,743 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2022-12-14 18:59:03,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 18:59:03,743 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:03,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:03,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:03,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:59:04,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:04,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 40 states and 48 transitions. [2022-12-14 18:59:04,269 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2022-12-14 18:59:04,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 18:59:04,270 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:04,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:04,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:59:04,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:04,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 39 states and 47 transitions. [2022-12-14 18:59:04,295 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2022-12-14 18:59:04,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 18:59:04,295 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:04,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:04,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:04,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:59:04,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:04,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 40 states and 48 transitions. [2022-12-14 18:59:04,710 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2022-12-14 18:59:04,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 18:59:04,710 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:04,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:04,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 18:59:04,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:04,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 41 states and 50 transitions. [2022-12-14 18:59:04,817 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2022-12-14 18:59:04,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 18:59:04,817 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:04,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:04,850 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 18:59:04,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:04,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 41 states and 49 transitions. [2022-12-14 18:59:04,942 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2022-12-14 18:59:04,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 18:59:04,942 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:04,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:04,998 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 18:59:05,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:05,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 29 transitions. [2022-12-14 18:59:05,186 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-12-14 18:59:05,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 18:59:05,186 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:05,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:05,718 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:59:08,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:08,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 34 states and 40 transitions. [2022-12-14 18:59:08,236 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2022-12-14 18:59:08,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 18:59:08,236 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:08,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:08,737 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:59:11,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:11,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 42 states and 53 transitions. [2022-12-14 18:59:11,725 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2022-12-14 18:59:11,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 18:59:11,726 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:11,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:12,658 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:59:17,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:17,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 54 states and 76 transitions. [2022-12-14 18:59:17,402 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 76 transitions. [2022-12-14 18:59:17,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-14 18:59:17,403 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:17,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:18,444 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:59:21,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:21,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 62 states and 92 transitions. [2022-12-14 18:59:21,805 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 92 transitions. [2022-12-14 18:59:21,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-14 18:59:21,806 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:21,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:22,794 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:59:26,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:26,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 70 states and 109 transitions. [2022-12-14 18:59:26,829 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 109 transitions. [2022-12-14 18:59:26,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 18:59:26,831 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:26,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:28,261 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:59:32,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:32,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 78 states and 127 transitions. [2022-12-14 18:59:32,063 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 127 transitions. [2022-12-14 18:59:32,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 18:59:32,063 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:32,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:33,377 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:59:37,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:37,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 86 states and 146 transitions. [2022-12-14 18:59:37,734 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 146 transitions. [2022-12-14 18:59:37,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 18:59:37,734 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:37,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:39,384 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:59:44,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:44,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 94 states and 166 transitions. [2022-12-14 18:59:44,265 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 166 transitions. [2022-12-14 18:59:44,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 18:59:44,266 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:44,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:46,337 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 0 proven. 315 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:59:52,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:52,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 102 states and 176 transitions. [2022-12-14 18:59:52,079 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 176 transitions. [2022-12-14 18:59:52,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-14 18:59:52,080 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:52,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:00:02,678 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:00:23,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:00:23,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 96 states and 114 transitions. [2022-12-14 19:00:23,285 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 114 transitions. [2022-12-14 19:00:23,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-12-14 19:00:23,287 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:00:23,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:00:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:00:23,870 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2022-12-14 19:00:26,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:00:26,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 95 states and 113 transitions. [2022-12-14 19:00:26,232 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 113 transitions. [2022-12-14 19:00:26,233 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 19:00:26,233 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 25 iterations. [2022-12-14 19:00:26,238 INFO L754 CodeCheckObserver]: All specifications hold 12 specifications checked. All of them hold [2022-12-14 19:00:26,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 07:00:26 ImpRootNode [2022-12-14 19:00:26,837 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 19:00:26,837 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 19:00:26,837 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 19:00:26,838 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 19:00:26,838 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:59:02" (3/4) ... [2022-12-14 19:00:26,840 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 19:00:26,844 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2022-12-14 19:00:26,845 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure plus [2022-12-14 19:00:26,847 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-12-14 19:00:26,847 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-12-14 19:00:26,847 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 19:00:26,847 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 19:00:26,847 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 19:00:26,872 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32d64af-9dbe-4c64-8421-15ae54b4950c/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 19:00:26,872 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 19:00:26,873 INFO L158 Benchmark]: Toolchain (without parser) took 85268.77ms. Allocated memory was 107.0MB in the beginning and 497.0MB in the end (delta: 390.1MB). Free memory was 57.4MB in the beginning and 238.7MB in the end (delta: -181.4MB). Peak memory consumption was 210.0MB. Max. memory is 16.1GB. [2022-12-14 19:00:26,873 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 107.0MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 19:00:26,873 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.58ms. Allocated memory is still 107.0MB. Free memory was 57.1MB in the beginning and 47.5MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 19:00:26,874 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.38ms. Allocated memory is still 107.0MB. Free memory was 47.2MB in the beginning and 45.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 19:00:26,874 INFO L158 Benchmark]: Boogie Preprocessor took 13.93ms. Allocated memory is still 107.0MB. Free memory was 45.7MB in the beginning and 44.8MB in the end (delta: 968.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 19:00:26,875 INFO L158 Benchmark]: RCFGBuilder took 260.83ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 44.8MB in the beginning and 106.0MB in the end (delta: -61.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 19:00:26,875 INFO L158 Benchmark]: CodeCheck took 84729.24ms. Allocated memory was 136.3MB in the beginning and 497.0MB in the end (delta: 360.7MB). Free memory was 106.0MB in the beginning and 240.8MB in the end (delta: -134.8MB). Peak memory consumption was 225.2MB. Max. memory is 16.1GB. [2022-12-14 19:00:26,875 INFO L158 Benchmark]: Witness Printer took 34.59ms. Allocated memory is still 497.0MB. Free memory was 240.8MB in the beginning and 238.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 19:00:26,877 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 33 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 84.1s, OverallIterations: 25, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1330 SdHoareTripleChecker+Valid, 7.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1071 mSDsluCounter, 785 SdHoareTripleChecker+Invalid, 6.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 1976 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6585 IncrementalHoareTripleChecker+Invalid, 8561 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1976 mSolverCounterUnsat, 727 mSDtfsCounter, 6585 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7187 GetRequests, 6402 SyntacticMatches, 121 SemanticMatches, 664 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188445 ImplicationChecksByTransitivity, 75.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 22.5s InterpolantComputationTime, 769 NumberOfCodeBlocks, 769 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 745 ConstructedInterpolants, 0 QuantifiedInterpolants, 4318 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 14 PerfectInterpolantSequences, 597/2082 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: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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: 22]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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 - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 107.0MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.58ms. Allocated memory is still 107.0MB. Free memory was 57.1MB in the beginning and 47.5MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.38ms. Allocated memory is still 107.0MB. Free memory was 47.2MB in the beginning and 45.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.93ms. Allocated memory is still 107.0MB. Free memory was 45.7MB in the beginning and 44.8MB in the end (delta: 968.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 260.83ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 44.8MB in the beginning and 106.0MB in the end (delta: -61.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 84729.24ms. Allocated memory was 136.3MB in the beginning and 497.0MB in the end (delta: 360.7MB). Free memory was 106.0MB in the beginning and 240.8MB in the end (delta: -134.8MB). Peak memory consumption was 225.2MB. Max. memory is 16.1GB. * Witness Printer took 34.59ms. Allocated memory is still 497.0MB. Free memory was 240.8MB in the beginning and 238.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-14 19:00:26,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c32d64af-9dbe-4c64-8421-15ae54b4950c/bin/ukojak-rkRKPMF4O4/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